Best Drain Cleaner of 2025

Last updated on 10/10/2025
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1
Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)
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Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)
Spear & Jackson
Why we love it
  • Effective on tough blockages.
  • Safe for all pipes.
  • Experienced, reputable brand.
Main Highlights
  • SPEAR & JACKSON CLEANING PRODUCTS: Since 1760 Spear and Jackson has been selling hand, garden, contractors, agricultural, landscaping and professional tools from its base in the city of Sheffield. Their range of cleaning products are made to target tough stains, grease, grim and fat. Their Heavy Duty Outdoor Drain Unblocker Gel is designed to clear any deposits that are blocking your sink, leaving it draining smoothly
  • SINK UNBLOCKER LIQUID GEL: Spear and Jackson's Heavy Duty Sink And Drain Unblocker comes in gel form and is designed to dissolve the fat, food, hair or soap residue build up that's blocking your sink. Their heavy duty sink and drain unblocker gel will instantly clear and dissolve the unwanted blockage, and with the sink freshener element of the gel, your sink will be look and smell brand new
  • BATHROOM & KITCHEN SINK UNBLOCKER: With no drain snake require, this product really couldn't be any easier to use. The gel will dissolve any build up that is causing a blockage in your sink or drain in 3 hours. Ideal for the kitchen or bathroom sink, however this Heavy Duty Sink & Drain Unblocker works on exterior drains just as well. In comparison to other drain cleaners and unblockers on the market, this product has a powerful formulation that achieves results in rapid speed
  • BATHROOM CLEANING PRODUCTS: Spear and Jackson's fast acting, powerful and effective sink and drain unblocker liquid is perfectly safe to use on all pipe types. For the best results, pour the heavy duty drain unblocker down the plughole, leave for a minimum of 3 hours (preferably overnight) and finish off by flushing the drain with hot water for at least 2 minutes to completely free any blockages - it's really that easy!
  • SPEAR & JACKSON: With over 250 years experience and continuous innovation, Spear and Jackson have built an enviable reputation with their market leading products that offer high quality performance tools to suit a wide range of needs. Whether you're looking to unblock your sink drain or a concentrated mould, algae and moss spray then shop Spear and Jackson range of versatile, effective and long lasting cleaning products
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9.7
Exceptional
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9.7
Exceptional
Spear & Jackson
Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)
Why we love it
  • Effective on tough blockages.
  • Safe for all pipes.
  • Experienced, reputable brand.
Main Highlights
  • SPEAR & JACKSON CLEANING PRODUCTS: Since 1760 Spear and Jackson has been selling hand, garden, contractors, agricultural, landscaping and professional tools from its base in the city of Sheffield. Their range of cleaning products are made to target tough stains, grease, grim and fat. Their Heavy Duty Outdoor Drain Unblocker Gel is designed to clear any deposits that are blocking your sink, leaving it draining smoothly
  • SINK UNBLOCKER LIQUID GEL: Spear and Jackson's Heavy Duty Sink And Drain Unblocker comes in gel form and is designed to dissolve the fat, food, hair or soap residue build up that's blocking your sink. Their heavy duty sink and drain unblocker gel will instantly clear and dissolve the unwanted blockage, and with the sink freshener element of the gel, your sink will be look and smell brand new
  • BATHROOM & KITCHEN SINK UNBLOCKER: With no drain snake require, this product really couldn't be any easier to use. The gel will dissolve any build up that is causing a blockage in your sink or drain in 3 hours. Ideal for the kitchen or bathroom sink, however this Heavy Duty Sink & Drain Unblocker works on exterior drains just as well. In comparison to other drain cleaners and unblockers on the market, this product has a powerful formulation that achieves results in rapid speed
  • BATHROOM CLEANING PRODUCTS: Spear and Jackson's fast acting, powerful and effective sink and drain unblocker liquid is perfectly safe to use on all pipe types. For the best results, pour the heavy duty drain unblocker down the plughole, leave for a minimum of 3 hours (preferably overnight) and finish off by flushing the drain with hot water for at least 2 minutes to completely free any blockages - it's really that easy!
  • SPEAR & JACKSON: With over 250 years experience and continuous innovation, Spear and Jackson have built an enviable reputation with their market leading products that offer high quality performance tools to suit a wide range of needs. Whether you're looking to unblock your sink drain or a concentrated mould, algae and moss spray then shop Spear and Jackson range of versatile, effective and long lasting cleaning products
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Value for Money
2
Cillit Bang 3-in-1 Power Cleaner Odour Stop Drain Unblocker Gel, Drain Cleaner For Kitchen Sink Drains, Bathroom Showers, Baths & Basins (Pack of 5)
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Cillit Bang 3-in-1 Power Cleaner Odour Stop Drain Unblocker Gel, Drain Cleaner For Kitchen Sink Drains, Bathroom Showers, Baths & Basins (Pack of 5)
Cillit Bang
Why we love it
  • Works in just 5 minutes.
  • Eliminates odour-causing bacteria.
  • Recyclable bottle packaging.
Main Highlights
  • WORKS IN 5 MINUTES: Cillit Bang 3-in-1 Power Cleaner Odour Stop Drain Unblocker Gel has a powerful formula that works in as little as 5 minutes; It specifically build up of sludge, dirt or other materials and breaks them up, keeping your pipes clean and water flowing freely
  • CLEANS AND FRESHENS: Cillit Bang's odour-eliminating gel targets odour-causing bacteria that live in your kitchen sink drains, bathroom showers, baths and basins
  • WORKS EVEN IN STANDING WATER: Cillit Bang 3-in-1 Drain Unblocker Gel unblocks, freshens and deep cleans your drains, even in standing water
  • SAFE FOR ALL PIPES: Our powerful drain unblocker gel only gets to work on nasty blockages building up in your drains and leave your pipes cleaner and fresher than before
  • BOTTLE CAN BE RECYCLED
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9.6
Superb
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9.6
Superb
Cillit Bang
Cillit Bang 3-in-1 Power Cleaner Odour Stop Drain Unblocker Gel, Drain Cleaner For Kitchen Sink Drains, Bathroom Showers, Baths & Basins (Pack of 5)
Why we love it
  • Works in just 5 minutes.
  • Eliminates odour-causing bacteria.
  • Recyclable bottle packaging.
Main Highlights
  • WORKS IN 5 MINUTES: Cillit Bang 3-in-1 Power Cleaner Odour Stop Drain Unblocker Gel has a powerful formula that works in as little as 5 minutes; It specifically build up of sludge, dirt or other materials and breaks them up, keeping your pipes clean and water flowing freely
  • CLEANS AND FRESHENS: Cillit Bang's odour-eliminating gel targets odour-causing bacteria that live in your kitchen sink drains, bathroom showers, baths and basins
  • WORKS EVEN IN STANDING WATER: Cillit Bang 3-in-1 Drain Unblocker Gel unblocks, freshens and deep cleans your drains, even in standing water
  • SAFE FOR ALL PIPES: Our powerful drain unblocker gel only gets to work on nasty blockages building up in your drains and leave your pipes cleaner and fresher than before
  • BOTTLE CAN BE RECYCLED
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3
5 Litre Heavy Duty Sink & Drain Unblocker Strong Cleaning Liquid Plug Hole Toilet Cleaner Tool For Home, Office, Garage & Shops (1 x 5 Litre)
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5 Litre Heavy Duty Sink & Drain Unblocker Strong Cleaning Liquid Plug Hole Toilet Cleaner Tool For Home, Office, Garage & Shops (1 x 5 Litre)
STORM TRADING GROUP
Why we love it
  • Unclogs sinks rapidly under 5 minutes.
  • Super-strength formula clears stubborn blockages.
  • Safely maintains all types of drains.
Main Highlights
  • SINK & DRAIN UNBLOCKER: However much you try, sometimes food, hair or other blockages might fall down your sink or drains. Luckily, our sink and drain unblocker will help you get those clogs shifted. Soon you’ll be able to take a shower without it filling up with water or wash up in your kitchen sink without the dirty water getting stuck. Our Sink and Drain unblocker is the fast and effective way to unclog your sinks and drains with one dose. Gets to work really fast in under 5 minutes.
  • POWERFUL FORMULA: Power through blockages in your drain with our super-strength drain unblocker solution. It's a home essential and can be used on sinks, showers, and outdoor drains. It powers through to the source of the blockage to resolve the issue and give you free running water again. Use regularly to ensure pipes and drains remain problem free.
  • MULTI USE: Protect your sinks and drains by using this drain unblocker on a regular basis. Out solution is safe for use on all pipes, its perfect for the home, office, workplace, shops and canteens.
  • SIMPLE TO USE: Add 1 Litre of product to the affected sink or drain and allow the solution to work for at least 5 minutes. For best results, leave for up to 30 minutes and then flush through with hot water. Simple select the amount required from the menu above.
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9.5
Superb
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9.5
Superb
STORM TRADING GROUP
5 Litre Heavy Duty Sink & Drain Unblocker Strong Cleaning Liquid Plug Hole Toilet Cleaner Tool For Home, Office, Garage & Shops (1 x 5 Litre)
Why we love it
  • Unclogs sinks rapidly under 5 minutes.
  • Super-strength formula clears stubborn blockages.
  • Safely maintains all types of drains.
Main Highlights
  • SINK & DRAIN UNBLOCKER: However much you try, sometimes food, hair or other blockages might fall down your sink or drains. Luckily, our sink and drain unblocker will help you get those clogs shifted. Soon you’ll be able to take a shower without it filling up with water or wash up in your kitchen sink without the dirty water getting stuck. Our Sink and Drain unblocker is the fast and effective way to unclog your sinks and drains with one dose. Gets to work really fast in under 5 minutes.
  • POWERFUL FORMULA: Power through blockages in your drain with our super-strength drain unblocker solution. It's a home essential and can be used on sinks, showers, and outdoor drains. It powers through to the source of the blockage to resolve the issue and give you free running water again. Use regularly to ensure pipes and drains remain problem free.
  • MULTI USE: Protect your sinks and drains by using this drain unblocker on a regular basis. Out solution is safe for use on all pipes, its perfect for the home, office, workplace, shops and canteens.
  • SIMPLE TO USE: Add 1 Litre of product to the affected sink or drain and allow the solution to work for at least 5 minutes. For best results, leave for up to 30 minutes and then flush through with hot water. Simple select the amount required from the menu above.
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4
2PCS Powerful Sink Foaming Sink and Drain Cleaner,Wild Si/nk and Dra/in Cleaner,Drain Clog Remover,Powerful Pipe Dredging Agent,Pipe Dredge Deodorant,Dr/ain Unblocker Liquid Heavy Duty for Bathroom
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2PCS Powerful Sink Foaming Sink and Drain Cleaner,Wild Si/nk and Dra/in Cleaner,Drain Clog Remover,Powerful Pipe Dredging Agent,Pipe Dredge Deodorant,Dr/ain Unblocker Liquid Heavy Duty for Bathroom
Xinyig
Free Shipping
Why we love it
  • Powerful and effective blockage removal.
  • Eliminates odors for fresh pipes.
  • Safe for all pipe types.
Main Highlights
  • 2PCS POWERFUL SINK FOAMING SINK AND DRAIN CLEANER:This wild sink and drain cleaner can very well help us to clean the pipes, so that our drains flow fa/ster. This drain clog remover is ideal for removing hard water deposits from our toilet tanks, and this powerful pipe dredging agent effectively breaks down the blockages in our pipes. Our pipe dredge deodorant will not disappoint you
  • ELIM/INATE ODORS: This drain unblocker can help you elim/inate unpleasant odors from the pipes in your kitchen and bathroom. The sink unblocker can keep your pipes clean and fresh. This cleaning products can help you break down the blockage in the pipe,your pipe water more smoothly with the drain unblocker bathroom. Come and try our bathroom cleaner
  • SAFE AND NOT IRRITATING: This toilet unblocker is made of safe and gentle materials, and this drain cleaner has no irritating odor. You don't have to worry about this kitchen cleaner causing damage to your pipes. You can use our shower cleaner again to help you unclog your drains and thus have a cleaning kitchen and bathroom environment.Our sink and drain unblocker will surprise you
  • MULTI-USE: This shower drain unblocker can be used in multiple places. You can use our drain unblocker tools in the kitchen or bathroom, whether it is the sink or the toilet, our outdoor drain unblocker can be very good to help you compl/ete the pipe cleaning, the toilet unblocker liquid can make you more relaxed,the kitchen sink unblocker is your good helper
  • CONVENIENT AND DURABLE: This bathroom drain unblocker is perfect for our daily life. This sink unblocker tool is also very easy to use and the drain cleaners and unblockers do not require complicated steps or waste a lot of your time. This shower unblocker can be used for a long time, the bathroom sink unblocker keeps your pipes clean and smooth for a while, and the pipe cleaner can help you solve the trouble of blocked pipes
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9.4
Superb
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9.4
Superb
Xinyig
2PCS Powerful Sink Foaming Sink and Drain Cleaner,Wild Si/nk and Dra/in Cleaner,Drain Clog Remover,Powerful Pipe Dredging Agent,Pipe Dredge Deodorant,Dr/ain Unblocker Liquid Heavy Duty for Bathroom
Free Shipping
Why we love it
  • Powerful and effective blockage removal.
  • Eliminates odors for fresh pipes.
  • Safe for all pipe types.
Main Highlights
  • 2PCS POWERFUL SINK FOAMING SINK AND DRAIN CLEANER:This wild sink and drain cleaner can very well help us to clean the pipes, so that our drains flow fa/ster. This drain clog remover is ideal for removing hard water deposits from our toilet tanks, and this powerful pipe dredging agent effectively breaks down the blockages in our pipes. Our pipe dredge deodorant will not disappoint you
  • ELIM/INATE ODORS: This drain unblocker can help you elim/inate unpleasant odors from the pipes in your kitchen and bathroom. The sink unblocker can keep your pipes clean and fresh. This cleaning products can help you break down the blockage in the pipe,your pipe water more smoothly with the drain unblocker bathroom. Come and try our bathroom cleaner
  • SAFE AND NOT IRRITATING: This toilet unblocker is made of safe and gentle materials, and this drain cleaner has no irritating odor. You don't have to worry about this kitchen cleaner causing damage to your pipes. You can use our shower cleaner again to help you unclog your drains and thus have a cleaning kitchen and bathroom environment.Our sink and drain unblocker will surprise you
  • MULTI-USE: This shower drain unblocker can be used in multiple places. You can use our drain unblocker tools in the kitchen or bathroom, whether it is the sink or the toilet, our outdoor drain unblocker can be very good to help you compl/ete the pipe cleaning, the toilet unblocker liquid can make you more relaxed,the kitchen sink unblocker is your good helper
  • CONVENIENT AND DURABLE: This bathroom drain unblocker is perfect for our daily life. This sink unblocker tool is also very easy to use and the drain cleaners and unblockers do not require complicated steps or waste a lot of your time. This shower unblocker can be used for a long time, the bathroom sink unblocker keeps your pipes clean and smooth for a while, and the pipe cleaner can help you solve the trouble of blocked pipes
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5
Drain Unblocker 260g, Powerful Sink and Pipe Unblocker Powder, Fast-Acting Foaming Drain Cleaner for Kitchen Sinks, Bathroom Drains, Showers and Toilets, Removes Hair, Grease, Soap and Food Clogs
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Drain Unblocker 260g, Powerful Sink and Pipe Unblocker Powder, Fast-Acting Foaming Drain Cleaner for Kitchen Sinks, Bathroom Drains, Showers and Toilets, Removes Hair, Grease, Soap and Food Clogs
JOYAONE
Free Shipping
Why we love it
  • Effective against stubborn blockages.
  • Fast-acting and easy to use.
  • Safe for all plumbing types.
Main Highlights
  • Powerful Drain Unblocker: 260g foaming sink and pipe unblocker powder designed to clear stubborn sink and pipe blockages quickly. Tackles hair, grease, soap scum and food residue effectively, restoring free-flowing drains in kitchen and bathroom
  • Fast-Acting Foaming Action: Simply pour the drain cleaner into the drain and add 40-60℃ hot water. The advanced formula activates instantly, creating a strong foaming reaction that helps dissolve common clogs without effort
  • Safe for All Pipes: Non-corrosive, bleach-free and gentle on metal, PVC and older plumbing systems. Our drain powder cleaners reduce the risk of damage or erosion, making it safe for regular maintenance as well as emergencies
  • Low Odour & Convenient Use: Our kitchen sink opener features a low-odour formula for a more comfortable experience. The 260g resealable pack allows easy storage, perfect for emergency clogs or monthly maintenance in kitchen sinks, bathroom drains, showers, toilets and outdoor drains
  • Customer Support: Your satisfaction is our top priority. If you have any questions about our shower drain unblocker(damage, unusual texture operational problems, e.t), please don't hesitate to get in touch. We're always here to assist you
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9.4
Superb
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9.4
Superb
JOYAONE
Drain Unblocker 260g, Powerful Sink and Pipe Unblocker Powder, Fast-Acting Foaming Drain Cleaner for Kitchen Sinks, Bathroom Drains, Showers and Toilets, Removes Hair, Grease, Soap and Food Clogs
Free Shipping
Why we love it
  • Effective against stubborn blockages.
  • Fast-acting and easy to use.
  • Safe for all plumbing types.
Main Highlights
  • Powerful Drain Unblocker: 260g foaming sink and pipe unblocker powder designed to clear stubborn sink and pipe blockages quickly. Tackles hair, grease, soap scum and food residue effectively, restoring free-flowing drains in kitchen and bathroom
  • Fast-Acting Foaming Action: Simply pour the drain cleaner into the drain and add 40-60℃ hot water. The advanced formula activates instantly, creating a strong foaming reaction that helps dissolve common clogs without effort
  • Safe for All Pipes: Non-corrosive, bleach-free and gentle on metal, PVC and older plumbing systems. Our drain powder cleaners reduce the risk of damage or erosion, making it safe for regular maintenance as well as emergencies
  • Low Odour & Convenient Use: Our kitchen sink opener features a low-odour formula for a more comfortable experience. The 260g resealable pack allows easy storage, perfect for emergency clogs or monthly maintenance in kitchen sinks, bathroom drains, showers, toilets and outdoor drains
  • Customer Support: Your satisfaction is our top priority. If you have any questions about our shower drain unblocker(damage, unusual texture operational problems, e.t), please don't hesitate to get in touch. We're always here to assist you
Show More
6
Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Gel Formula, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, Duo Pack, (2 x 1L)
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Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Gel Formula, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, Duo Pack, (2 x 1L)
Mr Muscle
Free Shipping
Why we love it
  • Powerfully tackles tough clogs.
  • Quick-action, efficient unblocking.
  • Safe for all pipes.
Main Highlights
  • Sink power unblocker to destroy the toughest clogs in your drain
  • Blocked drain cleaner for dissolving clogs caused by debris in sinks, plugholes and pipes
  • 3x more effective than bleach as a pipe unblocker based on hair removal in laboratory testing
  • Cuts through standing water to unblock plugholes
  • Mr Muscle drain unblocker is safe for use on all types of pipe
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9.4
Superb
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9.4
Superb
Mr Muscle
Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Gel Formula, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, Duo Pack, (2 x 1L)
Free Shipping
Why we love it
  • Powerfully tackles tough clogs.
  • Quick-action, efficient unblocking.
  • Safe for all pipes.
Main Highlights
  • Sink power unblocker to destroy the toughest clogs in your drain
  • Blocked drain cleaner for dissolving clogs caused by debris in sinks, plugholes and pipes
  • 3x more effective than bleach as a pipe unblocker based on hair removal in laboratory testing
  • Cuts through standing water to unblock plugholes
  • Mr Muscle drain unblocker is safe for use on all types of pipe
Show More
7
Buster Clean & Fresh Granules, 2 Pack - Tackle Smells and Stains for Clean and Fresh Plugholes, Drains, Dishwashers and Washing Machines - Fast Acting and Lasting Results
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Buster Clean & Fresh Granules, 2 Pack - Tackle Smells and Stains for Clean and Fresh Plugholes, Drains, Dishwashers and Washing Machines - Fast Acting and Lasting Results
Buster
Free Shipping
Why we love it
  • Deep cleansing for all surfaces.
  • Eliminates odors effectively and quickly.
  • Trusted expertise for over 30 years.
Main Highlights
  • CLEAN & FRESH GRANULES - Buster Clean & Fresh Granules clean drains, plugholes, pipes and surrounding areas to deliver deep down freshness for all sinks, washing machines and dishwashers.
  • BANISH SMELLY PLUGHOLES - Buster Plughole Clean & Fresh Granules fill the pipe with foam for deep down cleansing-removing dirt, killing bacteria and leaving behind a fresh eucalyptus fragrance to leave your plugholes and drains clean and fresh!
  • FOR PLUGHOLES, SINKS, DISHWASHERS & WASHING MACHINES - The unique formula removes nasty whiffs from plugholes and stains from stainless steel sinks; It also delivers long-lasting freshness in dishwashers, washing machines and septic systems.
  • A THOROUGH, DEEP DOWN CLEAN - Whether it’s stubborn stains or unwelcome whiffs, Buster’s fast-acting formula gets to work in 30 minutes to kill germs, remove stains and banish bad smells.
  • YOUR PLUGHOLE EXPERTS - For over 30 years, we’ve worked obsessively to make plughole care products that are effective and simply get the job done, from clearing and preventing blockages to cleaning and sanitising.
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9.2
Superb
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9.2
Superb
Buster
Buster Clean & Fresh Granules, 2 Pack - Tackle Smells and Stains for Clean and Fresh Plugholes, Drains, Dishwashers and Washing Machines - Fast Acting and Lasting Results
Free Shipping
Why we love it
  • Deep cleansing for all surfaces.
  • Eliminates odors effectively and quickly.
  • Trusted expertise for over 30 years.
Main Highlights
  • CLEAN & FRESH GRANULES - Buster Clean & Fresh Granules clean drains, plugholes, pipes and surrounding areas to deliver deep down freshness for all sinks, washing machines and dishwashers.
  • BANISH SMELLY PLUGHOLES - Buster Plughole Clean & Fresh Granules fill the pipe with foam for deep down cleansing-removing dirt, killing bacteria and leaving behind a fresh eucalyptus fragrance to leave your plugholes and drains clean and fresh!
  • FOR PLUGHOLES, SINKS, DISHWASHERS & WASHING MACHINES - The unique formula removes nasty whiffs from plugholes and stains from stainless steel sinks; It also delivers long-lasting freshness in dishwashers, washing machines and septic systems.
  • A THOROUGH, DEEP DOWN CLEAN - Whether it’s stubborn stains or unwelcome whiffs, Buster’s fast-acting formula gets to work in 30 minutes to kill germs, remove stains and banish bad smells.
  • YOUR PLUGHOLE EXPERTS - For over 30 years, we’ve worked obsessively to make plughole care products that are effective and simply get the job done, from clearing and preventing blockages to cleaning and sanitising.
Show More
8
Buster Bathroom Drain Unblocker 300ml, Pack of 3 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water
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Buster Bathroom Drain Unblocker 300ml, Pack of 3 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water
Buster
22% OffFree Shipping
Why we love it
  • Clears hair and sludge swiftly.
  • Saves showers, baths, and basins.
  • Fast-acting, efficient blockage solution.
Main Highlights
  • BATHROOM SINK UNBLOCKER - Buster Bathroom Plughole Unblocker is the one-shot drain unblocker specially designed to blast away hair and soap scum in bathroom drains fast
  • TARGETS HAIR & SLUDGE - Buster clears bathroom plugholes from the build-up of hair, soap scum and sludge; these are the common plughole nasties that, if not treated regularly, cause the dreaded bathroom plughole blockage
  • FOR SHOWERS, BATHS & BASINS - Buster Bathroom Plughole Unblocker is specially formulated to tackle the causes of blockages inside your bathroom pipes - It’s suitable for showers, baths, sink plugholes and is safe to use on septic systems
  • STOPS SLOW DRAINING WATER & BLOCKAGES - Whether it’s a full blockage or slow draining water, Buster’s fast-acting formula gets to work in 15 minutes (for best results leave overnight), dissolving hair and clearing sludge to keep water flowing freely
  • YOUR PLUGHOLE EXPERTS - For over 30 years we’ve worked obsessively to make plughole care products that are effective and simply get the job done, from clearing and preventing blockages to cleaning and sanitising
Show More
9.0
Superb
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9.0
Superb
Buster
Buster Bathroom Drain Unblocker 300ml, Pack of 3 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water
22% OffFree Shipping
Why we love it
  • Clears hair and sludge swiftly.
  • Saves showers, baths, and basins.
  • Fast-acting, efficient blockage solution.
Main Highlights
  • BATHROOM SINK UNBLOCKER - Buster Bathroom Plughole Unblocker is the one-shot drain unblocker specially designed to blast away hair and soap scum in bathroom drains fast
  • TARGETS HAIR & SLUDGE - Buster clears bathroom plugholes from the build-up of hair, soap scum and sludge; these are the common plughole nasties that, if not treated regularly, cause the dreaded bathroom plughole blockage
  • FOR SHOWERS, BATHS & BASINS - Buster Bathroom Plughole Unblocker is specially formulated to tackle the causes of blockages inside your bathroom pipes - It’s suitable for showers, baths, sink plugholes and is safe to use on septic systems
  • STOPS SLOW DRAINING WATER & BLOCKAGES - Whether it’s a full blockage or slow draining water, Buster’s fast-acting formula gets to work in 15 minutes (for best results leave overnight), dissolving hair and clearing sludge to keep water flowing freely
  • YOUR PLUGHOLE EXPERTS - For over 30 years we’ve worked obsessively to make plughole care products that are effective and simply get the job done, from clearing and preventing blockages to cleaning and sanitising
Show More
9
Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l (Packaging Varies) (1KG, 1, count)
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Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l (Packaging Varies) (1KG, 1, count)
The Retail Heaven
25% Off
Why we love it
  • Please provide a product description for me to generate the "Why we Love It" section.
Main Highlights
  • Drain cleaners and unblockers 1KG Caustic Soda Drain Cleaner Caustic Soda Powder Sink and Drain cleaner strong the original and best drain cleaner kitchen drain unblocker
  • Product type: DRAIN OPENER SUBSTANCE
  • Power unblocker to destroy the toughest clogs in your drain
  • 3x stronger than bleach in removing hair-based clogs
  • Penetrates standing water to clear blocked drains quickly
  • Safe for all types of plumbing systems
  • Industrial Strength Formula, Fast Action
  • Brand : The Retail Heaven
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8.9
Excellent
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8.9
Excellent
The Retail Heaven
Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l (Packaging Varies) (1KG, 1, count)
25% Off
Why we love it
  • Please provide a product description for me to generate the "Why we Love It" section.
Main Highlights
  • Drain cleaners and unblockers 1KG Caustic Soda Drain Cleaner Caustic Soda Powder Sink and Drain cleaner strong the original and best drain cleaner kitchen drain unblocker
  • Product type: DRAIN OPENER SUBSTANCE
  • Power unblocker to destroy the toughest clogs in your drain
  • 3x stronger than bleach in removing hair-based clogs
  • Penetrates standing water to clear blocked drains quickly
  • Safe for all types of plumbing systems
  • Industrial Strength Formula, Fast Action
  • Brand : The Retail Heaven
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10
HG Kitchen Drain & Plug Unblocker, Natural, Heavy Duty, Kitchen Sink Unblocker & Cleaner for Pipes, Septic Tank Safe - 1 Litre
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HG Kitchen Drain & Plug Unblocker, Natural, Heavy Duty, Kitchen Sink Unblocker & Cleaner for Pipes, Septic Tank Safe - 1 Litre
HG
Free Shipping
Why we love it
  • Effective for persistent blockages.
  • Eco-friendly and biodegradable ingredients.
  • Prevents future blockages.
Main Highlights
  • HG Drain Unblocker for kitchen sinks: A fast acting drain unblocker and kitchen sink cleaner. Clears the pipes quickly and easily; ideal for persistent blockages caused by fat, oil and food remnants
  • Eco conscious formula: The kitchen sink unblocker is made using natural ingredients, including enzymes and microbes, making this cleaner biodegradable and safe for any kitchen drain or septic tank
  • Quick and easy plughole unblocker: High strength blockage remover gel which gets to work eating away at the blockage. Try this first before calling a plumber! Gentle on sinks, pipes and traps
  • Easy to use drain cleaner fluid: Can also be used as a sink drain cleaner and de-odouriser. Enhances the bacteria culture of septic tanks and has a preventative effect to help avoid future blockages
  • Includes: 1 x HG Plughole Unblocker, 1L. Discover the full range of HG professional household cleaning products, with HG Mould Remover, toilet unblocker, shower drain unblocker and all surface cleaner
Show More
8.7
Excellent
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8.7
Excellent
HG
HG Kitchen Drain & Plug Unblocker, Natural, Heavy Duty, Kitchen Sink Unblocker & Cleaner for Pipes, Septic Tank Safe - 1 Litre
Free Shipping
Why we love it
  • Effective for persistent blockages.
  • Eco-friendly and biodegradable ingredients.
  • Prevents future blockages.
Main Highlights
  • HG Drain Unblocker for kitchen sinks: A fast acting drain unblocker and kitchen sink cleaner. Clears the pipes quickly and easily; ideal for persistent blockages caused by fat, oil and food remnants
  • Eco conscious formula: The kitchen sink unblocker is made using natural ingredients, including enzymes and microbes, making this cleaner biodegradable and safe for any kitchen drain or septic tank
  • Quick and easy plughole unblocker: High strength blockage remover gel which gets to work eating away at the blockage. Try this first before calling a plumber! Gentle on sinks, pipes and traps
  • Easy to use drain cleaner fluid: Can also be used as a sink drain cleaner and de-odouriser. Enhances the bacteria culture of septic tanks and has a preventative effect to help avoid future blockages
  • Includes: 1 x HG Plughole Unblocker, 1L. Discover the full range of HG professional household cleaning products, with HG Mould Remover, toilet unblocker, shower drain unblocker and all surface cleaner
Show More

We scanned 1565 products

We reviewed these offers relevant to the Drain Cleaner within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Spear & Jackson, Cillit Bang, STORM TRADING GROUP, Xinyig, JOYAONE, Mr Muscle, Buster, The Retail Heaven, HG, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Drain Cleaner in the market, we considered we took a deep dive into 7826 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: