ClearFlow team and van for Blocked Sink Unblocking in Glasgow
Available Now, 24/7 Emergency Response

Blocked Sink Unblocking in Glasgow and the West of Scotland

Kitchen or bathroom sink not draining? Local Glasgow engineers available same day, zero call-out fee, fixed price agreed before we start.

  • £5M+ Insured
  • 5.0★ (200+ reviews)
  • Since 2010
  • 1,200+ Jobs

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  • £5M Public Liability
  • Fully Insured
  • 5.0★ on Google (200+)
  • Owner-Operated Since 2010
  • 1,200+ Jobs Completed

Quick Answer

What it is
Professional unblocking of kitchen and bathroom sinks with the right equipment for each type of blockage.
Response time
Same day across Glasgow, 15 to 45 minutes for urgent callouts
Call-out fee
Zero. No call-out charge.
Price
From £XX (confirmed in writing before work starts)
Available
24 hours, 7 days, 365 days

Blocked Sink Unblocking in Glasgow

A slow-draining sink is rarely something that sorts itself out. What usually happens is the partial blockage gets worse over days and weeks until the sink stops draining altogether, and whatever you have been pouring down the plug hole in the meantime has made it harder to shift. The sooner it is dealt with, the easier and cheaper the fix.

Kitchen sinks and bathroom sinks block for completely different reasons. Kitchen sinks block from fat, grease, food waste and washing up liquid residue that cools and solidifies inside the waste pipe. Bathroom sinks block from hair, soap scum, toothpaste and the general build-up from daily use. The equipment needed to clear each one properly is not the same, and pouring a bottle of supermarket drain cleaner down either of them usually makes the situation worse by softening the blockage just enough to push it further down the pipe where it resets.

ClearFlow is a Glasgow-based drainage company run by David and Chris. They have been unblocking sinks across the city and surrounding area since 2010. They carry the right equipment for both types of blockage, give you a fixed price before starting, and clear the drain properly so it does not come back in a fortnight.

Signs you need blocked sink unblocking

  • Water draining slowly and taking longer than it used to

  • Standing water pooling in the sink basin after use

  • Gurgling sounds from the plughole during or after draining

  • Bad smell coming up from the plughole, usually from decomposing food or grease

  • Sink drains at first then stops halfway through

  • Water backing up from the sink when the dishwasher or washing machine drains

  • Multiple sinks in the property draining slowly at the same time

  • Previous blockages that seemed to clear but have come back

Our process

  1. 1

    Call or message us

    Phone or WhatsApp David or Chris directly. Tell us whether it is a kitchen sink, bathroom sink or both. We confirm availability and give you the price before we travel.

  2. 2

    Price confirmed in writing

    You get the price by text or email before the engineer sets off. No call-out charge, no extra charges after the job.

  3. 3

    On site same day

    For urgent callouts we aim to be with you in 15 to 45 minutes. Planned jobs we will agree a time that suits you.

  4. 4

    Diagnose and clear

    We identify the type of blockage and use the right equipment for it. Kitchen sink blockages get jetting to break up and flush out the grease. Bathroom sink blockages get mechanical clearing to remove the hair and soap mass. If the same sink keeps blocking we run a camera to find out why.

  5. 5

    Test and confirm

    We run the tap and confirm full flow before we leave. We tell you what caused it and what to do to keep it clear.

Common causes

What Causes a Blocked Sink in Glasgow?

The cause of a blocked sink almost always comes down to what goes down it regularly. Kitchen sinks and bathroom sinks have completely different culprits, and understanding which one you are dealing with affects how it is cleared.

Fat, oil and grease from cooking

The most common cause of a blocked kitchen sink in Glasgow. Liquid fat cools and solidifies inside the pipe, catching food particles until it fully blocks. Tenement waste pipes are especially prone as the run is long and poorly ventilated.

Food waste and debris

Rice, pasta, coffee grounds, vegetable peelings and small food particles that get past the plughole build up on the grease inside the pipe and accelerate a blockage.

Soap scum and washing up residue

Soap solidifies inside waste pipes over time, especially in older pipework. Combined with food waste it is one of the leading causes of kitchen sink blockages.

Hair and soap buildup in bathroom sinks

Hair collects at the trap and on any joint or roughness in the pipe. Combined with soap and toothpaste residue it forms a solid mass that eventually blocks the drain completely.

Old or corroded traps

The U-bend or bottle trap under the sink collects debris. In older Glasgow properties the trap may be corroded, misshapen or the wrong size, making it much more likely to catch debris and block.

Shared waste pipe build-up

In tenement flats and HMO properties several sinks share a single waste pipe. Scale and grease build up inside the shared run over years until the pipe can no longer carry the volume.

Good news: every one of these has a clean, proven fix, and we'll show you exactly what we found.

Get it fixed

Why choose ClearFlow

Local & owner-run

David and Chris run ClearFlow from Glasgow and carry out the work themselves. You speak to them directly when you call.

Right equipment for the job

Kitchen blockages and bathroom blockages need different approaches. We carry the equipment for both and use what the job actually requires.

£5M+ public liability

Fully insured on every job. Certificate available if you need it.

Fixed price, no surprises

Confirmed in writing before we start. What we quote is what you pay.

We clear the cause, not just the trap

Pulling the gunk out of the trap clears it for a week. Clearing the full waste run keeps it clear.

Same engineer, start to finish

Whoever you speak to on the phone is the one who comes to the door.

What We Use to Unblock a Sink

For kitchen sink blockages caused by fat and grease, high-pressure water jetting is the most effective solution. Running at up to 4,000 PSI it breaks up solidified grease along the full length of the waste pipe and flushes it completely clear rather than just shifting the blockage further along the run. Chemical drain cleaners soften the surface of the grease and push it downstream where it resets. Jetting removes it.

For bathroom sink blockages built up from hair and soap, electro-mechanical clearing equipment breaks up the mass at the trap and throughout the waste pipe without damaging the pipework. We then jet or rod the full run to confirm it is clear end to end.

If the same sink has been blocking repeatedly or the blockage will not shift with standard methods, we run an HD CCTV camera into the waste run to check whether there is a structural issue, a collapsed joint or a problem on a shared pipe further down the line.

Transparent pricing

No call-out fee. You only pay if you go ahead, and the price is agreed in writing before we start. There are no extra charges added at the end of the job.

Same-day pricing is the same as any other time. There is no premium for short notice, evenings or weekends.

If the camera shows something that needs a separate repair, we show you the footage, explain it in plain English and give you a written quote. Nothing proceeds without your agreement.

Fixed price agreed before any work starts.
Coverage

Areas we cover for Blocked Sink Unblocking

Local engineers across Glasgow and a 50-mile radius. Tap your town for blocked sink unblocking response times in your area.

109 areas · 50 mile radius from Glasgow

Don't see your area? Call 0141 461 3511 and we likely still cover you.

Reviews

What Our Clients Say

Real reviews from Glasgow households and businesses we've helped.

"I had major issues with my drainage caused by ground movement. The ground had to be dug up and a new drainage system put in. This was done efficiently and to a very high standard, the workmen were legends, absolutely brilliant. My slabs were all put back exactly as they were before. I highly recommend this company."

Andrea Mcconville

Verified Google review · 8 months ago

"Guys were very professional and thorough. Got the drains unblocked in both directions and we could see on the camera it was clear. Also checked our internal drains. Really nice guys, thanks so much!"

Heather Fraser

Verified Google review · a month ago

"We've just used the emergency call-out service for the river of sewage flowing through our garden! It's now running clear and the garden is clean again. Lovely team. Efficient, professional service. Highly recommended."

Heather Robertson

Verified Google review · 3 months ago

"David and Chris were great, turned what felt like a very stressful situation into a pleasure. They came out last minute on an evening and resolved our blocked drain issue, and took the time to explain ways to future-proof us. Friendly and helpful. Would recommend."

Hannah Berry

Verified Google review · 2 weeks ago

"Great service and I thought the price was excellent. Came out on a Sunday due to an emergency and were there in less than an hour. Many thanks."

Catriona Byers

Verified Google review · a month ago

"Needed drain unblocked. Came within 24 hours. Very professional engineers. Work done cleanly and quickly for quoted price. A+"

Chris Gilbey

Verified Google review · 2 months ago

Frequently asked questions

Engineers available now, 24/7
Rated 5.0 · 200+ reviews

Blocked drain? Let's get it flowing.

Speak to a local Glasgow engineer in seconds. Fixed pricing, no call-out fee, and a 15-45 minute response across the West of Scotland.

24/7 response
Fixed pricing
£5M+ insured
Glasgow local