Local trade · London
A plumber who answers, day or night
H2O Gas Ltd sorts out plumbing and boiler problems across London, with quick responses even at weekends.
Phone lines open 24 hours
07877 772355
24 hOpen every day
Checked against public registers · 29 Oct 2026
From Companies House register, re-checked monthly. Not information from the business.
What gets sorted
Boilers, leaks and the everyday jobs
From a boiler that's given up to a tap that won't stop dripping. Ring and explain the problem, and an engineer comes to you across London.
The job list
H2O Gas Ltd · W3- 01
Boiler repairs
Fixing boilers that break down, including older models that need careful handling.
- 02
Leak fixes
Tracking down drips and leaks before they cause bigger damage. Quick to get out and stop the water.
- 03
General plumbing
Blocked pipes, faulty valves, dripping taps — the everyday plumbing jobs that need sorting.
- 04
Radiators & heating
Radiators not heating up properly, or a heating system that needs a proper look.
- 05
Emergency call-outs
Phone lines open 24 hours a day, for problems that can't wait until morning.
- 06
Comes to you
An engineer who comes to you across London, day or night.
What customers say
Average from 33 Google reviews
Read all 33 reviews on Google
How a call-out goes
From the phone call to the job done
- Step 1
Call anytime
Ring and explain the problem — H2O Gas can be reached 24 hours a day.
- Step 2
Have a look
The engineer assesses the problem in person before starting any work.
- Step 3
Fix it
Repairs or replacement are carried out on the spot wherever possible.
- Step 4
All done
The work is checked over before the engineer leaves.
Open 24 hours, every day
Got a plumbing or boiler problem?
Call H2O Gas any time, day or night — the phone lines are open 24 hours.
07877 772355Good to know
Questions people ask
Do you deal with boiler problems?
Yes — H2O Gas has helped with boiler issues before, including older boilers that need careful handling.
Can you come out at weekends?
Yes, H2O Gas has a track record of responding quickly even over weekends.
Are you contactable out of hours?
Yes, the phone line is open 24 hours a day, every day of the week.
What areas do you cover?
H2O Gas covers London — ring to check whether your address is included.