24/7 & EMERGENCY?

Gas Engineers in London

Need a Gas Safe registered gas engineer in London? Jennings carries out gas safety checks, landlord CP12 certificates, gas appliance installations and emergency repairs for homes and businesses across the capital, with no call-out fee and free, fixed-price quotes.

Gas safety in London

Our Gas Safe registered engineers work for homeowners, landlords and businesses in Hammersmith, Chelsea and right across London, making sure your boiler, cooker and other gas appliances are safe and working as they should.

Our gas services

EMERGENCY:
AVAILABLE 24/7

Smell gas, or worried about a faulty appliance? Our emergency gas engineers answer calls day and night.

Available 24/7 for homes and businesses.

GAS INSTALLATION & SAFETY DEVICES
GAS METER BOX REPLACEMENT
GAS SAFETY CERTIFICATION

Gas safety checks

A gas safety check is more than a quick look at the boiler. Our engineers test your appliances, flues and pipework with specialist equipment to spot problems early, before they lead to gas leaks, carbon monoxide or a breakdown.

You get a clear record that your gas appliances and pipework meet current safety standards, whether you need it for compliance or peace of mind.

Why gas safety matters

30%

30% of gas-related incidents are linked to leaks, a major contributor to household fires

1 in 10

1 in 10 UK homes contains an unsafe gas appliance

30%

Up to 30% energy savings can be achieved by ensuring gas appliances run efficiently

Gas and carbon monoxide detectors

Early warning of gas and CO

Carbon monoxide has no colour or smell, so a detector is the only way to know it’s there. We fit gas and carbon monoxide detectors that pick up leaks and dangerous gas levels at the earliest stage.

Once fitted, they keep watch day and night and sound the alarm straight away, protecting the people in your home or building.

Areas we cover

From busy city hubs to peaceful suburban neighborhoods, we’ve got London covered. Our expert property maintenance services ensure your home or business stays in top condition, no matter where you are in Greater London.

Gas meter box replacement

Is your gas meter box cracked, broken or looking tired? We replace damaged and outdated meter boxes to protect the meter, make it easier to get to and tidy up the outside of your property.

Every new box is fitted carefully and securely, so it lasts for years and leaves a neat, professional finish.

Why choose Jennings?

Landlord CP12 gas safety certificates

If you let a property, the law requires a gas safety check every 12 months and a CP12 gas safety certificate. Jennings handles the whole landlord CP12 service for you, from inspection and testing to the certificate itself, with as little disruption to your tenants as possible.

Our Gas Safe engineers keep your rental property safe, compliant and protected against legal risk.

Need heating supplies?

Our shop on Lupus Street in Pimlico stocks quality plumbing, heating and electrical supplies from trusted brands. Tradespeople and DIYers are both welcome, and our team is always happy to give advice.

See what our valued customers have to say

Posted on Google Google
Uncovered - The Electric Rock Experience profile picture
Uncovered - The Electric Rock Experience
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing as always!
Posted on Google Google
Bronnie Baynes profile picture
Bronnie Baynes
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing communication and good availability. plumber was extremely professional and arrived on time. Wish there was a bit more transparency on additional payments ie. parking and sealant.
Posted on Google Google
Sue Davies profile picture
Sue Davies
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jennings are incredibly efficient and helpful. They’ve completed my boiler service and organised the necessary plumbing and electrical certifications . Great after sales service.
Posted on Google Google
Diana Gould profile picture
Diana Gould
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent job. Solved a long standing problem quickly and effectively. 100% recommend 👍
Posted on Google Google
Paul Grecian profile picture
Paul Grecian
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
What a fantastic company! From my first conversation with Sian to installation of my new Vaillant boiler they have been absolutely brilliant. Sian responded instantly via What's App when ever I had a question regarding pricing and installation. Sam the installer and his colleague with very friendly, professional, tidy and talked me through the full installation once completed. I have already given contact details to some of my work colleague's this morning. I will use them to service my boiler going forward in the future and for any other plumbing needs. Absolutely 1st Class Company!
Posted on Google Google
Brenda Zang profile picture
Brenda Zang
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service from start to finish. Had a new boiler installed and a full power flush carried out. Everything was done professionally, efficiently, and to a very high standard. The team were friendly, tidy, and kept us informed throughout. Highly recommend!
Posted on Google Google
Sam Harvey profile picture
Sam Harvey
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Easily one of the best experiences I’ve had with tradesmen. Sian was super friendly and helpful, and then Harry showed up early, fixed the issue promptly and was a legend! Highly recommended.
Posted on Google Google
Joe Carreiro profile picture
Joe Carreiro
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Service was professional and friendly
Posted on Google Google
Olive Tree House profile picture
Olive Tree House
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been dealing with ongoing pump issues for as long as I can remember, and after multiple visits from different plumbers, nothing ever fully got resolved. Harry from Jennings was the first to actually diagnose the problem and sort it in one visit. Professional, efficient, and clearly knows his craft inside out. I couldn’t recommend Jennings more highly.
Posted on Google Google
Stella Ofori profile picture
Stella Ofori
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Tristan was very polite, friendly and very professional. He is also very good at his job and very efficient. Very happy with the service