10 Best Toilet Drain Cleaners And Unblockers in The UK

Last updated on 02/08/2025

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Green Gobbler - Main Line Drain Opener - Toilet Unblocker, Dissolve Hair & Organic Materials from Clogged Toilets, Sinks and Drains - Drain Cleaner and Unblocker - 3,8 L

Free Shipping

Why We Love It

Efficiently dissolves common clog sources.
Multipurpose and septic-safe.
Assures 30-day money back.

Main Highlights

Dissolves Tough Clogs: Green Gobbler's powerful formula clears clogged drains by dissolving hair, soap, toilet paper, flushable wipes, and other organic materials, eliminating the need for plunging
Versatile Use Drain Cleaner: Safe for use in pipes, toilets, sinks, tubs, and showers. The non-corrosive formula is also safe for septic systems and does not contain bleach or sodium hydroxide
High-Density Formula: The thick, high-density formula sinks through standing water to reach problem areas, ensuring effective clog removal without damaging PVC, ABS, copper, or cast-iron pipes
Easy Application: The pre-measured formula makes it simple to use with no measuring required. Just pour, wait, and rinse for quick results
How to Use: Pour entire bottle into the toilet on the first floor. Close lid and flush once to distribute the product through the pipes. Overnight use for best results

Czerio 2025 Upgrade Drain Unblocker, Powerful Sink & Pipe Cleaner for Bathroom, Toilet & Kitchen, Fast Acting Drain Cleaning Dredge Agent for All Pipes (2)

Why We Love It

Fast results for stubborn clogs.
Safe for all plumbing types.
Eliminates odors, restores freshness.

Main Highlights

Fast-Acting Blockage Relief: This powerful drain cleaner dissolves hair, grease, and soap scum fast—making it a reliable shower drain unblocker or toilet unblocker with results you can see in minutes
Safe for All Plumbing: Specially formulated to be pipe-friendly, this drain unblocker is safe for metal, PVC, and septic systems—no damage, just clean and clear drains every time
Eliminates Bad Odors: More than a drain cleaner for bad smells, this formula clears blockages and removes odor-causing residue to restore freshness to your bathroom or kitchen
Effortless to Use: Just pour, wait, and rinse—this powder-based drain cleaner works without harsh scrubbing or tools, saving time and effort when handling stubborn clogs
Versatile Cleaning Power: From toilets to tubs and kitchen sinks, this multipurpose drain unblocker tackles all household drains, keeping your plumbing system hygienic and flowing smoothly

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.

Kilrock Rhino 1 Litre Heavy Duty Drain & Toilet Unblocker High Strength

9% Off

Why We Love It

Clears stubborn blockages effortlessly.
Effective against multiple clogs.
Industrial strength performance guaranteed.

Main Highlights

Drain cleaner 1 liter.-rhino
High strength industrial product for toilets and drains
bulldozes about pretty much everything
Fat and grease, hair & soap. Food residue, limescale, toilet paper"

Inovix® 5 Litre Heavy Duty Drain Unblocker | Sink Unblocker | Fast-Acting Solution for Sinks, Toilets, Showers Removes Hair & Sludge | Industrial Drain Unblocker Ideal For Indoor And Outdoor Drains

Why We Love It

Powerful unblocker for tough clogs.
Fast-acting formula for quick results.
Safe for all pipe types.

Main Highlights

✅ Powerful Drain Unblocker for Home & Commercial Use – Inovix heavy duty drain unblocker tackles even the toughest blockages. Designed for sinks, toilets, showers, and bathroom drains, it restores fast-flowing water in minutes.
✅ Fast-Acting Sink & Shower Drain Unblocker – Say goodbye to standing water! This powerful sink unblocker liquid formula gets to work quickly, dissolving hair, soap scum, and sludge in kitchen sinks, plugholes, and bathroom drains.
✅ Eliminates Bad Smells & Keeps Drains Fresh –Removes Odours & Freshens Pipes This strong drain cleaner not only unblocks but also deodorises. Idle Drain cleaner for bad smells lingering odours caused by sludge, stagnant water, and food debris.
✅ Multi-Purpose & Pipe Safe Formula – Use in bathrooms, kitchens, garages, shops, and more. Safe for ceramic, metal , plastic pipes, and septic tanks too, making it your go-to outdoor drain unblocker tool for regular maintenance.
✅ Industrial Strength Drain Cleaner – Made with high-performance cleaning agents, our 5L solution offers industrial-level power. Cuts through grease, food waste, fat, and organic build-up in residential or commercial settings.
✅ Simple to Use – No Tools Needed – No Tools or Plumbers Needed Just pour 1L of our powerful unblocker liquid directly into the affected area. Leave for 5–30 minutes (or overnight for tough blockages), then flush with hot water.
✅ Large 5 Litre Value Pack – Supplied in a generous 5L container, Inovix provides long-lasting use and great value. Ideal for households, landlords, cleaners, and facilities management teams.

MultiWare 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

Powerfully clears stubborn clogs.
Safe for all pipes.
Offers rapid, efficient results.

Main Highlights

MULTIWARE POWERFUL DRAIN UNBLOCKER - Experience the strength of MultiWare's industrial-grade formula, specifically engineered to dissolve stubborn clogs quickly and efficiently. This powerful cleaner tackles everything from hair and soap scum to grease and food particles, ensuring your drains are free-flowing and clean.
SAFE FOR ALL PIPES - MultiWare Sink and Drain Unblocker is thoughtfully formulated to be safe for use in all plumbing systems. Whether your home uses modern PVC, traditional copper, or older metal piping, you can trust our product to clear clogs without causing any damage or corrosion.
RAPID RESULTS - Get quick results when time is of the essence. Our unblocker works within minutes to remove obstructions and restore optimal flow to slow drains, saving you both time and frustration. Simply follow the easy instructions for immediate relief.
EASY TO USE - Avoid expensive plumber calls with MultiWare's easy-to-use drain solution. Our clear, step-by-step guide allows anyone to professionally handle drain maintenance. Just pour the recommended amount into the drain, wait for the formula to work its magic, and rinse away the residues.
VERSATILE APPLICATIONS - Not just for kitchen sinks, MultiWare's Drain Unblocker is also effective in bathrooms, on shower drains, and even outdoor drains exposed to leaves and debris. Its versatility makes it a must-have in any home or commercial setting to tackle a variety of blockage issues.

Green Gobbler Drain Unblocker PACS | Hair Clog Remover | Toilet Clog Remover | Sinks & Tub Drain Cleaner | 3 Pac with Free Hair Grabber Tool

5% OffFree Shipping

Why We Love It

Easy to use, no mess.
Effective against common blockages.
Safe and fully guaranteed.

Main Highlights

EASY TO USE: Fast and Powerful Single Use Pacs, No Measuring, No Guessing How Much To Use, No Mess. For Toilet clogs. ALL ORDERS INCLUDE 1 Hair Grabber Tool
WORKS FOR: Bathroom Sinks, Bath Tubs, Showers, Toilets, Kitchen Sinks, Floor Drains, Slop Sinks, Urinals, RV Drains and More
EFFECTIVE AGAINST: Grease, Hair, Toilet Paper, Soap Scum, Organic Materials, Body Oils, Calcium and Lime Buildup, Rust, Flushable Baby Wipes, Toothpaste, Shampoo Residue, Iron Buildup
SAFER: alternative for picpes compared to toxic and dangerous liquid drain chemicals
GUARANTEE : We value our customers and we stand behind ALL of our products 100 percent with no questions asked. If you are not pleased simply call or email us with your order number and we will reimburse you in FULL

Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Heavy Duty Drain Gel, 2 x 500 ml

30% OffFree Shipping

Why We Love It

Powerful sink clog solution.
Efficient blockage removal strength.
Safe for all pipes.

Main Highlights

Sink 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 pipes

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

HG Drain and Plug Unblocker, Effectively Removes Blockages & Cleans Blocked Drains Fast, for Blocked Drain Pipes in Sinks or Shower Traps (1 Litre)

Free Shipping

Why We Love It

Works within 60 minutes.
Gentle on plastic pipes.
Trusted brand since 1969.

Main Highlights

For every type of waste pipe: HG liquid drain cleaner & plug hole unblocker gets to work in 60 minutes, getting the water flowing freely again
Targets blocked drains in the bathroom & utility: Unclogs drains which have hair, soap scum, toilet paper & other blockages
Tough on blocked drains, gentle on pipes: Plug hole unblocker rapidly unblocks drains effectively & does not damage plastic pipes
Easy to use: Ready-to-use formula, in large 1 litre bulk size, does not need to be diluted – meaning less chance of splashing. Simply pour in 5 cups (500ml), leave for 60 minutes & rinse
Trusted Since 1969: HG has been a cleaning expert since 1969, providing quality solutions for a cleaner home

8.9

Excellent

We scanned 377 products

We reviewed these offers relevant to the Toilet Drain Cleaners And 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 Green Gobbler, Czerio, STORM TRADING GROUP, Kilrock, Inovix, MultiWare, Mr Muscle, 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 Toilet Drain Cleaners And Unblockers in the market, we considered we took a deep dive into 1886 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:

The clear winner of our analysis is Green Gobbler - Main Line Drain Opener - Toilet Unblocker, Dissolve Hair & Organic Materials from Clogged Toilets, Sinks and Drains - Drain Cleaner and Unblocker - 3,8 L. We love many things about this product by Green Gobbler. What sets it apart from the competition is Efficiently dissolves common clog sources, Multipurpose and septic-safe. , Assures 30-day money back.
The best value product for most shoppers and where user satisfaction is continuously the highest is Czerio 2025 Upgrade Drain Unblocker, Powerful Sink & Pipe Cleaner for Bathroom, Toilet & Kitchen, Fast Acting Drain Cleaning Dredge Agent for All Pipes (2) by Czerio based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Toilet Drain Cleaners And Unblockers and the best cost-to-value ratio is Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Heavy Duty Drain Gel, 2 x 500 mlat Mr Muscle with a 30% discount.
Our list of the best Toilet Drain Cleaners And Unblockers is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Toilet Drain Cleaners And Unblockers in The UK

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Mr Muscle Drain Unblocker, Drain Cleaner Power Gel, 1 Litre (Packaging May Vary)

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

Drain Unblocker Cleaner Brush Tool - 4PCS Shower Drain Unblocker,Double Ended Nylon Pipe Cleaner Brush,Toilet Unblocker for Bathroom Toilet Kitchen Plug Hole,Reusable Rods

Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Drain Gel, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, 500ml

Knock Out New Drains/Toilets and Urinals, 500 ml

1KG Caustic Soda Unblocker Sink and Pipe Cleaner Powder Remove Blockages Quickly and Conveniently Bathroom Unblocker, Cleaner for Kitchen Sink Shower Toilet Maintenance

AZEEZ Plumbers Snake Drain Unblocker Wire Flexible Spring Wire Toilet Cleanerw/Brush Plug Remover Plunger Kitchen Tub Sink Shower Pipes Washbasins Drains Home Cleaning Equipment 1m (Sn-20)

HG Drain & Plug Unblocker Gel, Effective Cleaner & Sink Clog Remover & Toilet Unblocker, Heavy Duty Sink & Plug Hole Treatment - 1 Litre, Packaging may vary

Drain Snake Toilet Unblocker Tool - 3M Sink Drain Plumbing Unblocker Wire, 50CM Drain Snake, 60CM Toilet Auger Hair Clog Remover with Claw, 70CM Sink Cleaning Brush, 6PCS (Orange)

We scanned 377 products

We concluded that: