Frequently Asked Questions

Yes. Gas First Ltd is Gas Safe registered (registration number 587401). Every engineer who works on your gas appliances is Gas Safe registered and carries ID — you are welcome to check our number on the Gas Safe Register.

Yes, we are fully insured for the work we carry out.

Gas First has been providing gas, boiler and heating services since 2016, working across East London from our base in Bow.

We cover East London, including Bow, Stratford, Isle of Dogs, Canary Wharf, East Ham, Dagenham, Barking, Rainham, Elm Park, Hornchurch, Upminster, Romford and Ilford. If you are nearby and not sure whether we reach you, just ask.

Call us, message us on WhatsApp, or fill in the booking form on any page and we will call you back to arrange a time that suits you.

For urgent problems we aim to attend the same day wherever possible. For routine work like servicing or certificates we will book you in at a convenient time. Because we are based locally in East London, we are often not far away.

Yes. We provide emergency cover for gas and heating problems, including loss of heating, breakdowns and suspected gas leaks. If you smell gas, turn off the supply at the meter if you can, avoid naked flames and electrical switches, and call us.

Our services start from set prices — for example boiler repair from £89, a boiler service from £79, and a CP12 landlord certificate from £49. The final price depends on the job; we will always be upfront about cost before any work goes ahead, with no obligation.

Yes. We will explain what is needed and what it costs before we begin, so there are no surprises.

Only an engineer on the Gas Safe Register can legally inspect gas appliances. Some plumbers are also Gas Safe registered, but it is the registration that matters, not the job title. Our registration number is 587401.

We work on all major brands, including Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and Ferroli, among others. See our full boiler repair service for more detail.

Yes. We carry out landlord gas safety certificates (CP12) and boiler servicing for landlords and letting agents across East London, and can set up renewal reminders so your properties stay compliant.

Yes. Alongside gas and heating we handle general plumbing — leaks, repairs, blocked drains, installations and emergency plumbing.

New boilers and parts are covered by the manufacturer's warranty, the length of which depends on the make and model. We will explain the warranty that applies to your boiler installation.