Plumber

Gasworks Plumbing And Heating Limited

Potters Bar5.0· 8 reviews · 3 sources
Trust score
65out of 100
Rating5.0★
Review volumeLow · 8
Source diversity3 sources
VerificationListed

Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.

About

We supply and install energy efficient boilers and heating systems with intelligent controls to maximise efficiency. We cater for all areas of plumbing and heating to the domestic and commercial market - minor repairs to underfloor heating systems and solar hot water systems.

Reviews · public evidence

What customers say

5.0out of 5
8 reviews in public evidenceCross-checked across 3 sources
5 stars8
4 stars0
3 stars0
2 stars0
1 star0
Companies HouseSource profile linked
Companies House OfficersSource profile linked
Which? Trusted TradersSource profile linked

Highlights

"On this occasion my boiler was serviced, the engineer arrived on time, communicated with me what he was doing and the work was completed as necessary. Boiler area was left in a clean and tidy state. I have used Gasworks on very many occasions for various issues and have always found them to be prompt to attend and all their work has been of an exceptionally high standard. My house presented with many unforeseen and complicated plumbing issues when I purchased it and these have all been resolved by Gasworks. Their engineers are very pleasant and helpful."

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

"The work on this occasion was a boiler service. It was done just as you would hope. The engineer arrived at the time we had booked, the work was done very considerately (our boiler is in the middle of our hallway so we were coming & going a lot around him, but this didn't cause any problems), and no mess at all. The booking of the appointment, and invoicing afterwards, was easy and efficient. Gasworks have been working for us for around four years and every piece of work has been to the same excellent standard - our boiler installation, boiler services, and a few other things. On a couple of occasions we've had leaks (not from any of their work, but from older plumbing) and they've come round quickly, and sorted the problem sensibly without trying to suggest lots of expensive / unnecessary work. All their engineers, and their office staff, have been unfailingly friendly and cheerful. I couldn't recommend Gasworks highly enough."

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

"Gasworks offer a great service. They are always polite and courteous from point of office contact to their super team of engineers who come out and carry out the work. They are clean and tidy and extremely thorough. I would highly recommend"

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

Detailed reviews

Which? Trusted Traders Consumer5.0 / 5

On this occasion my boiler was serviced, the engineer arrived on time, communicated with me what he was doing and the work was completed as necessary. Boiler area was left in a clean and tidy state. I have used Gasworks on very many occasions for various issues and have always found them to be prompt to attend and all their work has been of an exceptionally high standard. My house presented with many unforeseen and complicated plumbing issues when I purchased it and these have all been resolved by Gasworks. Their engineers are very pleasant and helpful.

Which? Trusted Traders
Which? Trusted Traders Consumer5.0 / 5

The work on this occasion was a boiler service. It was done just as you would hope. The engineer arrived at the time we had booked, the work was done very considerately (our boiler is in the middle of our hallway so we were coming & going a lot around him, but this didn't cause any problems), and no mess at all. The booking of the appointment, and invoicing afterwards, was easy and efficient. Gasworks have been working for us for around four years and every piece of work has been to the same excellent standard - our boiler installation, boiler services, and a few other things. On a couple of occasions we've had leaks (not from any of their work, but from older plumbing) and they've come round quickly, and sorted the problem sensibly without trying to suggest lots of expensive / unnecessary work. All their engineers, and their office staff, have been unfailingly friendly and cheerful. I couldn't recommend Gasworks highly enough.

Which? Trusted Traders
Which? Trusted Traders Consumer5.0 / 5

Gasworks offer a great service. They are always polite and courteous from point of office contact to their super team of engineers who come out and carry out the work. They are clean and tidy and extremely thorough. I would highly recommend

Which? Trusted Traders
Which? Trusted Traders Consumer5.0 / 5

Installation of new pipe work for central heating and hot and cold water supply plus new radiators. The company is very professional. Provided full details and explanation of the work to be carried out. The work was completed to a high standard and within the timeframe given.

Which? Trusted Traders
Customer in Hertfordshire5.0 / 5

I am a pensioner and had been ripped off badly by other companies in the past until I found Gasworks. I had a very bad slow leak in my downstairs toilet that had caused a lot of water damage. Carl found the leak and fixed it and also checked for other leaks. He was very courteous and considerate and cleared up afterwards. Carl is an excellent plumber which, in my experience, are hard to find. I have also used their Electrician, Oscar who is also excellent and I have used this company to have my boiler serviced every year (this year by Michael) and I can highly recommend them all. Great company and very helpful.

Which? Trusted Traders
Customer in Hertfordshire5.0 / 5

What a pleasure to deal with, polite, efficient with fair and reasonable costs. The office and engineers real do understand their profession. Excellent!!

Which? Trusted Traders
Customer in Greater London5.0 / 5

Carl was transparent, told me exactly what he was doing and why and provided a professional invoice. Carl and Grant were efficient, courteous and worked well together. They were reassuring, always welcome when it comes to gas and water! They checked everything and left my home tidy and the work successfully completed. I recommend them.

Which? Trusted Traders
Customer in Greater London5.0 / 5

I phoned Gasworks Plumbing and Heating with what I suspected was a random failure of my boiler's flue fan. Michael, who annually services my boiler, was able to divert to my home at the end of the day to confirm the fault. A new fan was ordered immediately and was fitted 'first thing' the NEXT morning. I consider this to be excellent+ service, carried out in an expert manner. The office/admin staff are also worthy of note for friendly and efficient job handling and invoicing. Thank you for minimising the disruption to our heating and hot water at this cold time of the year.

Which? Trusted Traders
Local context

Rated 5.0★ — in line with the local average for plumbers in Potters Bar

Across 10 rated plumbers in Potters Bar, the typical rating is 5.0★. We compare against the same businesses a homeowner would find searching for this trade locally.

Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence5.0★ from 8 public reviewsCompanies HouseCompanies House OfficersWhich? Trusted Traders
Sources

Every signal, traced to its origin

3 named sources

Review sources

Which? Trusted Traders

Official sources

Companies HouseCompanies House Officers
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 5.0★
Source diversity: 3 sources
!Worth checking yourself
!Review volume: Low · 8
!Verification: Listed

Public evidence last checked May 2026

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Good to know

Common questions about Gasworks Plumbing And Heating Limited

What do customers say about Gasworks Plumbing And Heating Limited?

Gasworks Plumbing And Heating Limited has 8 public reviews, averaging 5 out of 5, gathered across 3 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Gasworks Plumbing And Heating Limited's reviews are genuine?

Gasworks Plumbing And Heating Limited's 8 public reviews are gathered and cross-checked across 3 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Smart checks

Before you hire a plumber

Agree the call-out fee, the hourly or fixed rate, and whether parts are charged on top — in writing — before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced — get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work.
Gas and boiler work is a separate, regulated trade — not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start.
Look for consistent reviews across several named sources, not one polished profile.
Check any verified credentials, and that the business details independently check out.
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