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10 bestDrain Cleanersof January 2026

112M consumers helped this year.

45% off

1

Buster Bathroom Drain Unblocker 300ml, Pack of 2 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water

Buster Bathroom Drain Unblocker 300ml, Pack of 2 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water

Buster Bathroom Drain Unblocker 300ml, Pack of 2 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water

Buster

9.7

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2

HOMAITER Drain Unblocker, 2PCS Powerful Cleaner Formula, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER Drain Unblocker, 2PCS Powerful Cleaner Formula, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER Drain Unblocker, 2PCS Powerful Cleaner Formula, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER

9.4

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27% off

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)

5 Litre Heavy Duty Sink & Drain Unblocker Strong Cleaning Liquid Plug Hole Toilet Cleaner Tool For Home, Office, Garage & Shops (1 x 5 Litre)

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

9.2

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4

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 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 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

8.9

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5

Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)

Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)

Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)

Spear & Jackson

8.6

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OtherRelated productsUp to 8% off

HG Kitchen Drain & Plug Unblocker, Natural, Heavy Duty, Kitchen Sink Unblocker & Cleaner for Pipes, Septic Tank Safe - 1 Litre

HG Kitchen Drain & Plug Unblocker, Natural, Heavy Duty, Kitchen Sink Unblocker & Cleaner for Pipes, Septic Tank Safe - 1 Litre

Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies)

Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies)

Zep Commercial Unblocker Heat Drain Liquid

Zep Commercial Unblocker Heat Drain Liquid

2 x 5 Litre Heavy Duty Drain & Sink Unblocker (2 x 5 Litre | Double Pack)

2 x 5 Litre Heavy Duty Drain & Sink Unblocker (2 x 5 Litre | Double Pack)

33% off

6

Buster Kitchen Plughole Unblocker 150g, Pack of 3 - Kitchen Drains & Sinks Unblocker, Blasts Fat & Food Debris – Fast Acting Plughole Unclogger, Clears Blockages & Slow-Draining Water

Buster Kitchen Plughole Unblocker 150g, Pack of 3 - Kitchen Drains & Sinks Unblocker, Blasts Fat & Food Debris – Fast Acting Plughole Unclogger, Clears Blockages & Slow-Draining Water

Buster Kitchen Plughole Unblocker 150g, Pack of 3 - Kitchen Drains & Sinks Unblocker, Blasts Fat & Food Debris – Fast Acting Plughole Unclogger, Clears Blockages & Slow-Draining Water

Buster

8.3

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7

HOMAITER Drain Unblocker, Powerful Cleaner Formula, 260g, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER Drain Unblocker, Powerful Cleaner Formula, 260g, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER Drain Unblocker, Powerful Cleaner Formula, 260g, Removes Hair, Grease & Soap Scum, Safe for Pipes and Septic Systems

HOMAITER

8.1

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5% off

8

HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml

HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml

HG Duo Unblocker, Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml

HG

7.8

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19% off

9

HG Drain and Plug Unblocker – Fast Acting Drain Cleaner for Sinks, Pipes & Shower Traps - 1L

HG Drain and Plug Unblocker – Fast Acting Drain Cleaner for Sinks, Pipes & Shower Traps - 1L

HG Drain and Plug Unblocker – Fast Acting Drain Cleaner for Sinks, Pipes & Shower Traps - 1L

HG

7.5

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9% off

10

One Chem Professional Heavy Duty Drain Unblocker 2 x 5 Litres, Clears Grease, Fat, Food Deposits, Indoor and Outdoor Use

One Chem Professional Heavy Duty Drain Unblocker 2 x 5 Litres, Clears Grease, Fat, Food Deposits, Indoor and Outdoor Use

One Chem Professional Heavy Duty Drain Unblocker 2 x 5 Litres, Clears Grease, Fat, Food Deposits, Indoor and Outdoor Use

One Chem

7.2

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