Best Drain Unblockers of 2025

Last updated on 17/10/2025
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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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9.8
Exceptional
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9.8
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
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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9.8
Exceptional
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9.8
Exceptional
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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3
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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4
HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml
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HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml
HG
Free Shipping
Why we love it
  • Ultra-effective for stubborn blockages.
  • Unique 2-component cleaning technology.
  • Safe and easy to use.
Main Highlights
  • HG Drain Unblocker duo: Ultra effective drain unblocker for blocked pipes in and around the home. Extremely powerful and recommended for stubborn blockages or persistently clogged drains
  • Effective multi purpose cleaner for removing stubborn blockages: Kitchen or bathroom plug unblocker, breaks down drain blockages caused by oil, food, debris, soap scum or hair
  • Shower and bath unblocker: Heavy duty pipe unblocker and drain pipe cleaner uses unique 2-component technology (bottles A and B) which work together to treat the clogged drain
  • No splash, easy to use: Drain unblocker liquid is safe for all drain types and won't foam or splash. It's ready to use and won't need diluting. Safe to use in kitchen, utility areas and wet rooms
  • Includes: HG Duo Unblocker, 2 x 500ml. Discover the innovative range of HG professional household cleaning products, including HG mould remover spray, multi purpose cleaners and all surface cleaners
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9.5
Superb
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9.5
Superb
HG
HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml
Free Shipping
Why we love it
  • Ultra-effective for stubborn blockages.
  • Unique 2-component cleaning technology.
  • Safe and easy to use.
Main Highlights
  • HG Drain Unblocker duo: Ultra effective drain unblocker for blocked pipes in and around the home. Extremely powerful and recommended for stubborn blockages or persistently clogged drains
  • Effective multi purpose cleaner for removing stubborn blockages: Kitchen or bathroom plug unblocker, breaks down drain blockages caused by oil, food, debris, soap scum or hair
  • Shower and bath unblocker: Heavy duty pipe unblocker and drain pipe cleaner uses unique 2-component technology (bottles A and B) which work together to treat the clogged drain
  • No splash, easy to use: Drain unblocker liquid is safe for all drain types and won't foam or splash. It's ready to use and won't need diluting. Safe to use in kitchen, utility areas and wet rooms
  • Includes: HG Duo Unblocker, 2 x 500ml. Discover the innovative range of HG professional household cleaning products, including HG mould remover spray, multi purpose cleaners and all surface cleaners
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5
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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9.5
Superb
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9.5
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
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6
Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Heavy Duty Drain Gel, 2 x 500 ml
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Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Heavy Duty Drain Gel, 2 x 500 ml
Mr Muscle
12% OffFree Shipping
Why we love it
  • Powerful sink clog solution.
  • Efficient blockage removal strength.
  • Safe for all pipes.
Main Highlights
  • POWERFUL SINK SOLUTION: This sink power unblocker is designed to destroy the toughest clogs in your drain effectively
  • POWERFUL BLOCKAGE REMOVAL: Specially formulated as a blocked drain cleaner, it effectively dissolves clogs caused by debris in sinks, plugholes, and pipes
  • LABORATORY TESTED MIGHT: 3x more effectiveness than bleach as a pipe unblocker, particularly in removing hair, *Based on hair removal in laboratory testing
  • QUICK-ACTION FORMULA: Engineered to cut through standing water quickly, this product efficiently unblocks plugholes
  • SAFE FOR ALL PIPES: Mr Muscle drain unblocker is safe and suitable for use on all types of pipes, ensuring no damage to your plumbing system
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9.3
Superb
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9.3
Superb
Mr Muscle
Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Heavy Duty Drain Gel, 2 x 500 ml
12% OffFree Shipping
Why we love it
  • Powerful sink clog solution.
  • Efficient blockage removal strength.
  • Safe for all pipes.
Main Highlights
  • POWERFUL SINK SOLUTION: This sink power unblocker is designed to destroy the toughest clogs in your drain effectively
  • POWERFUL BLOCKAGE REMOVAL: Specially formulated as a blocked drain cleaner, it effectively dissolves clogs caused by debris in sinks, plugholes, and pipes
  • LABORATORY TESTED MIGHT: 3x more effectiveness than bleach as a pipe unblocker, particularly in removing hair, *Based on hair removal in laboratory testing
  • QUICK-ACTION FORMULA: Engineered to cut through standing water quickly, this product efficiently unblocks plugholes
  • SAFE FOR ALL PIPES: Mr Muscle drain unblocker is safe and suitable for use on all types of pipes, ensuring no damage to your plumbing system
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7
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
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9.2
Superb
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9.2
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
8
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
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9.2
Superb
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9.2
Superb
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
9
HG Drain & Plug Hair Unblocker, Removes Hair from Pipes & Drains – 200ml + 250ml
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HG Drain & Plug Hair Unblocker, Removes Hair from Pipes & Drains – 200ml + 250ml
HG
10% OffFree Shipping
Why we love it
  • Effective two-step formula solution.
  • Quick and convenient application.
  • Universal compatibility with drains.
Main Highlights
  • Havy duty drain unblocker: Ideal for use in the bathroom. Dissolves hair deposits in the shower, sink, bath & toilet, unblocking drains quickly & effectively
  • No more hooking hair out: This plug unblocker for hair quickly dissolves stubborn hair blockages, meaning you won't have to deal with the unpleasant job of manually unclogging drains
  • Dual formula: The two-component drain treatment is strengthened with potassium hydroxide, making it highly effective at clearing clumps of hair and dissolving soap scum remnants, toothpaste, & more
  • Quick and easy: Apply the drain unblocker liquid in an easy two-step process – pour both components one after the other down the drain, leave, and rinse. Gentle on plastic pipes & metal plug holes
  • Ready to use: Ready-to-use formula, in 200 ml + 250 ml bottles, does not need to be diluted – meaning less chance of splashing. Single use application
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9.1
Superb
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9.1
Superb
HG
HG Drain & Plug Hair Unblocker, Removes Hair from Pipes & Drains – 200ml + 250ml
10% OffFree Shipping
Why we love it
  • Effective two-step formula solution.
  • Quick and convenient application.
  • Universal compatibility with drains.
Main Highlights
  • Havy duty drain unblocker: Ideal for use in the bathroom. Dissolves hair deposits in the shower, sink, bath & toilet, unblocking drains quickly & effectively
  • No more hooking hair out: This plug unblocker for hair quickly dissolves stubborn hair blockages, meaning you won't have to deal with the unpleasant job of manually unclogging drains
  • Dual formula: The two-component drain treatment is strengthened with potassium hydroxide, making it highly effective at clearing clumps of hair and dissolving soap scum remnants, toothpaste, & more
  • Quick and easy: Apply the drain unblocker liquid in an easy two-step process – pour both components one after the other down the drain, leave, and rinse. Gentle on plastic pipes & metal plug holes
  • Ready to use: Ready-to-use formula, in 200 ml + 250 ml bottles, does not need to be diluted – meaning less chance of splashing. Single use application
Show More
10
Tanness 5 Litre Drain Unblocker - Heavy Duty Sink & Drain Cleaner for Plug Holes, Toilets, Showers & Pipes - Powerful Toilet & Sink Unblocker for Home, Office, Garage & Shops - Cleaning Supplies
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Tanness 5 Litre Drain Unblocker - Heavy Duty Sink & Drain Cleaner for Plug Holes, Toilets, Showers & Pipes - Powerful Toilet & Sink Unblocker for Home, Office, Garage & Shops - Cleaning Supplies
TANNESS
Why we love it
  • Powerful and effective drain solution.
  • Eliminates tough blockages quickly.
  • Prevents unpleasant odours effectively.
Main Highlights
  • POWERFUL 5 LITRE DRAIN UNBLOCKER – Strong liquid solution designed to clear blocked sinks, plug holes, drains, and toilets. Dissolves grease, food, soap, and hair quickly, making it a reliable sink unblocker and toilet unblocker heavy duty cleaner.
  • HEAVY DUTY SINK & TOILET UNBLOCKER – Effective on tough blockages in kitchens, bathrooms, showers, and utility drains. Works fast to restore free-flowing pipes and prevent unpleasant odours in your home or workplace.
  • MULTIPURPOSE DRAIN CLEANER – Versatile sink and drain cleaner that eliminates the need for a plunger sink unblocker or drain unblocker tool. Keeps drains clear and fresh for both domestic and commercial use.
  • FAST ACTING DRAIN CLEANERS AND UNBLOCKERS – Simply pour the liquid directly into the sink, shower drain, or toilet bowl and leave to work. A must-have cleaning supply for households, offices, shops, and garages.
  • RELIABLE CLEANING SOLUTION – Trusted drain cleaner liquid for regular maintenance or emergency use. Helps prevent recurring clogs and build-up, making it an essential part of everyday cleaning supplies.
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9.0
Superb
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9.0
Superb
TANNESS
Tanness 5 Litre Drain Unblocker - Heavy Duty Sink & Drain Cleaner for Plug Holes, Toilets, Showers & Pipes - Powerful Toilet & Sink Unblocker for Home, Office, Garage & Shops - Cleaning Supplies
Why we love it
  • Powerful and effective drain solution.
  • Eliminates tough blockages quickly.
  • Prevents unpleasant odours effectively.
Main Highlights
  • POWERFUL 5 LITRE DRAIN UNBLOCKER – Strong liquid solution designed to clear blocked sinks, plug holes, drains, and toilets. Dissolves grease, food, soap, and hair quickly, making it a reliable sink unblocker and toilet unblocker heavy duty cleaner.
  • HEAVY DUTY SINK & TOILET UNBLOCKER – Effective on tough blockages in kitchens, bathrooms, showers, and utility drains. Works fast to restore free-flowing pipes and prevent unpleasant odours in your home or workplace.
  • MULTIPURPOSE DRAIN CLEANER – Versatile sink and drain cleaner that eliminates the need for a plunger sink unblocker or drain unblocker tool. Keeps drains clear and fresh for both domestic and commercial use.
  • FAST ACTING DRAIN CLEANERS AND UNBLOCKERS – Simply pour the liquid directly into the sink, shower drain, or toilet bowl and leave to work. A must-have cleaning supply for households, offices, shops, and garages.
  • RELIABLE CLEANING SOLUTION – Trusted drain cleaner liquid for regular maintenance or emergency use. Helps prevent recurring clogs and build-up, making it an essential part of everyday cleaning supplies.
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We scanned 1565 products

We reviewed these offers relevant to the Drain Unblockers 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, STORM TRADING GROUP, Cillit Bang, HG, Mr Muscle, Buster, TANNESS, 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 Unblockers 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: