Primary trade Gas / Heating engineer
30 ratings
ratings badge

30+ ratings


30 ratings

About H2O

H2O are a local, professional and friendly company that has been established for over 15 years. We specialise in all gas, and electrical hot water and heating installations , service's, repairs and certifications. We do also complete general plumbing works. We also pride ourselves on our competitive quotations, and have been members of rated people for more then 7 years and have built up a large base of returning customer from the our professional approach and quality of our works. Please feel free to review our profile and the customer feed back that we have received.

Ratings & reviews

H2O rated for Carpenter / Joiner


Overall rating

30 total ratings 1 last 30 days 2 last 6 months 3 last 12 months

31 Dec 2021


Arrived on time. Got on with the job. Standard of work excellent and tidied up after.

, BT29

27 Dec 2021


Brilliant job; very efficient and neat. Would highly recommend

, BT9

01 May 2021


If I could give six stars, I would. Colm was absolutely excellent. I completely trusted him, he advised me well, he worked hard and was really organised and reliable and I'm delighted with the result. He just sort of broadcasts reliability and competence.

, SO22

17 Jun 2020

Gas / Heating engineer

Really friendly super nice guy. Prompt response and very neat work.

, GU8

13 May 2020


Colm was fantastic, he was really professional, timely and great value for money. Really pleased with out new boiler. Will definitely use Colm for future plumbing needs. Thank you.

, RG22

04 May 2020

Gas / Heating engineer

Very prompt. Very efficient. Very honest. Will definitely be using him again!

, GU12

04 Apr 2020

Gas / Heating engineer

Prepared to be flexible to fix the problem rather than wait for new parts and come back. Will certainly use again to service item and replace defective part. (once THE VIRUS is over)

, PO12

25 Mar 2020

Gas / Heating engineer


, SO16

04 Mar 2020

Gas / Heating engineer

Colm is now my go to plumber. I've recommended him to friends who have also passed his details on. Friendly, reliable and forthright!

, SO18

22 Jan 2020

Gas / Heating engineer

He was unable to diagnose the problem and also when he left, he accidentally left a valve locked manually to open, meaning my boiler was constantly on. I challenged Colm on this and was told it was not his fault. Paid a different engineer who immediately spotted and highlighted the problem in 2 seconds. Also the boiler has a visible crack and is potentially unsafe, 2nd engineer noticed but Colm didn't. As this is a safety issue, concerning it was not highlighted since Colm was here for nearly 3 hours.

, SP11

24 Jun 2019

Gas / Heating engineer

Quick and friendly response, Clear discussion of my options and quote. His demeanour and workmanship is very professional and I will definitely be using Colom again.

, SO15

18 Jun 2019

Gas / Heating engineer

Colm did a brilliant job, and was able to find a convenient time to carry out the work on a Sunday. He is extremely professional - highly recommended!

, RG21

08 Jun 2019

Gas / Heating engineer

Excellent service. Job very well and professionally completed.

, SO30

06 Jun 2019

Gas / Heating engineer

Colm carried an extremely thorough service on my boiler, picking up 3 issues that he recommended I take up with the manufacturer as part of my ongoing warranty.(including providing e-mailed photos of the issues) He is the only boiler service engineer we have used that inspected the whole LPG system from Calor tank, cutoff valve and indeed our gas hob settings, and offered to bleed the radiators for us as well. Thoroughly professional, extremely tidy and clean, and as a result extremely highly recommended.

, GU32

03 Jun 2019

Gas / Heating engineer

Very experienced engineer, job done fast, tidy and friendly! Highly recommended!

, GU2

26 Apr 2016

Gas / Heating engineer

Would highly recommend Colm he did an excellent job.

, SO51

16 Feb 2016


I was very happy with the boiler replacement that H2O did for me. The service was excellent and I would absolutely recommend this person.

, SO51

16 Jan 2016

Gas / Heating engineer

I would recommend culminates to a. Connor is been a pleasure to deal with from the initial survey and through to the end of the job, and is always friendly, prompt and professional. He decommissioned and old gas boiler and recited the new boiler, with a new associated pipework, need to lift floorboards college all three walls et cetera but you wouldn't even know he'd been in to do the job as the house was left in a clean and tidy state.

, SO18

08 Nov 2015

Gas / Heating engineer

Colm was on time, finished on budget and his work was top quality.

, SO30

08 Sep 2011

Gas / Heating engineer

Colm is a professional and reliable person. When Colm visited our home to quote for the job, he listened to the spec and requirements and explained everything so we both knew what was going to be fitted. The quotes were provided within 24hrs. A date was set and he contacted me the day before to confirm that this was still convenient. He was prompt and worked non stop for 2 days producing a neat and tidy result. I would not hesitate in recommending him!

, GU15

Trade certifications

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Gas Safe Certifications

This tradesperson is Gas Safe registered to work safely and legally on gas appliances in the UK.
Find out more about Gas Safe

Registered name
H2O Plumbing and Heating
Reg No:
H2O Plumbing and Heating

Areas serviced

Services available

Top trades offered by H2O

Primary trade

Gas / Heating engineer

Gas Fire

Gas Cooker / Hob - Installation

Electric Boiler - Installation

Carpenter / Joiner

Hot Tub Installation / Repair


Hot Tub Installation / Repair

Electrical Inspection Condition Report

Floor fitters

Water Underfloor Heating


Bathroom, Kitchen and WC Plumbing

Plumbing Repair & Maintenance

Power Showers and Pump