A leak, a burst pipe, a blockage, or no water at all — we diagnose and repair the fault, and make good afterwards. If you're dealing with a leak right now, find your stopcock and turn it off before anything else. Covering Farnham, Guildford, Godalming, Farnborough, Fleet and Camberley.
Find the main stopcock and turn it off — this is usually under the kitchen sink, though it can be elsewhere in older properties. Turning off the stopcock stops water reaching the leak, which limits the damage it can cause. If the leak is coming from a specific appliance or fitting with its own isolation valve, such as a washing machine or a toilet, isolating that valve alone may be enough. Open a downstairs cold tap afterwards to relieve pressure in the system, and mop up or contain standing water where you safely can, particularly near electrical sockets or fittings.
This page covers plumbing faults that need attention now — something has failed, and water, drainage or supply is affected as a result. That includes leaks, burst pipes, blockages, dripping or seized valves, failed flexible connectors, an overflowing cistern, loss of water or pressure, and frozen pipes. If you're planning new plumbing work rather than dealing with a current fault, that's covered on our Residential Plumbing page instead.
ComGas Services UK Ltd
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From a dripping valve to a burst pipe affecting the whole property, we isolate the fault, find the actual cause, and make good once the repair is complete.
A joint failure, a split pipe from freezing, or corrosion in an older copper run — we isolate the leak and repair or replace the affected section.
From a slow-draining sink to a blocked external drain affecting the whole property, we clear the blockage using the method appropriate to its location and severity.
No water at all is often a supply-side issue, a failed stopcock, or a burst affecting the whole property. A drop in pressure often points to a developing leak elsewhere in the system.
We isolate the fault first, then find the actual cause rather than only treating the visible symptom, and agree the repair with you before any work starts.
Standing water and damp from a leak can affect flooring, ceilings and decoration beyond the plumbing fault itself. Once the repair is complete, we'll tell you plainly what damage we've seen so you can assess whether further remedial work, or a conversation with your insurer, is needed — that assessment sits outside our plumbing repair, but we won't leave you guessing about what we've found.
Blockages range from a slow-draining sink caused by a local build-up to a blocked external drain affecting an entire property. We clear the blockage using the method appropriate to its location and severity, and where a blockage is a recurring problem rather than a one-off, we'll explain what's likely causing it to keep happening.
Reviews from real ComGas customers, shown as submitted through Google.
Rated 5.0 out of 5 from 75 Google reviews.
"Really happy with the service! Matt came out to carry out our boiler service and was friendly, professional and did a great job."
Kerryann, Google review, September 2026
"First time we've used this company and it won't be the last. Very professional and efficient in everything they do…"
Ian, Google review, June 2026
"…ended up coming to my place of work and sorting an old heating system that hadn't worked for years in a car showroom & workshop. Great team of guys"
James, Google review, October 2025
If you're dealing with a leak or burst pipe right now, find your stopcock and turn it off before anything else, then call us.
Call 01252 214120Find the main stopcock — usually under the kitchen sink — and turn it off to stop water reaching the leak. If the leak is from a specific appliance or fitting with its own isolation valve, closing that alone may be enough. Then call us.
Most commonly under the kitchen sink, but it can be in a utility room, cellar, garage, or under stairs in older properties. If you genuinely can't locate it, call us and we'll talk you through likely locations for your type of property.
Turn off the stopcock if you suspect the pipe may have split, since a frozen pipe often leaks once it thaws. Don't apply direct heat to a frozen section yourself if you're unsure where it runs, as this can cause a hidden split to fail suddenly. Call us to assess and thaw it safely.
Only if that's genuinely where the fault is. We isolate and investigate before deciding, and we'll explain clearly if access work is needed before we start, rather than opening things up unnecessarily.
We make good what we've disturbed to access the fault, to a tidy and safe standard, as part of the same visit wherever practical. Where further work such as redecoration is needed beyond the plumbing repair, we'll tell you plainly what that involves.
No. This page covers urgent faults — leaks, bursts, blockages, no water. Planned plumbing work, such as a new bathroom, kitchen or upgraded pipework, is covered on our Residential Plumbing page.
It's worth having looked at promptly, since a continuously overflowing cistern wastes water and can indicate a failed float or fill valve that may fail further. It's not usually a property emergency in the way a burst pipe is, but it shouldn't be left indefinitely.
Tell us what's happened and what you've already done, such as isolating the stopcock, and we'll get an engineer to the fault.
Current accreditations and registrations.
Message the ComGas office on 01252 214120.