Blocked pipes causing you problems? Clear them quickly and easily with Zep Liquid Heat Drain Unblocker – its powerful formula reacts with the water and blockage to melt away grease, fat and food build-ups.
Perfect for unclogging the kitchen sink, this drain cleaner gets to work fast – it will start to shift blockages within an hour or two, but works best when left overnight. Zep drain unblocker is safe to use with plastic pipes.

• Sink unblocker – perfect for kitchen drains and pipes
• Fast-acting – removes grease, fat and food build-up
• Versatile – safe for use with plastic pipes
• Heavy-duty formulation – takes on tough blockages

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.