Boiler Installation in East London
New boiler supplied and fitted by Gas Safe registered engineers — efficient, warranty-backed heating for your home, with clear advice on the right boiler for you.
Gas Safe Registered · 587401
Manufacturer Approved
Fully Insured
Same-Day Service
Local Engineers
Upfront cost — no obligation A new boiler is a significant decision, and the right choice depends on your home, your hot water demand and your budget. Gas First installs new boilers across East London and Essex, helping you pick the correct type and size rather than over-selling you something you don’t need. We fit high-efficiency boilers from the leading manufacturers, register the installation for warranty and Building Regulations, and leave your system running cleanly and safely.
Helpful reading: Signs it’s time to replace your boiler
Combi or system boiler — how do you choose the right one for your home?
The best boiler for you depends on how your home uses heating and hot water. Combi boilers suit smaller homes and flats with one bathroom, heating water on demand with no need for a cylinder. System boilers suit larger homes with higher hot water demand. Getting the size right matters — an oversized boiler wastes energy, an undersized one struggles to keep up. We assess your property and recommend the most suitable, efficient option.
The best boiler for you depends on how your home uses heating and hot water.
Which boiler brands does Gas First recommend and install?
We install boilers from manufacturers known for reliability and strong warranties, including Vaillant, Worcester Bosch, Baxi, Ideal and others. Many modern boilers come with long manufacturer guarantees when installed by an approved, Gas Safe registered engineer — we’ll explain the warranty options for each.
We install boilers from manufacturers known for reliability and strong warranties, including Vaillant, Worcester Bosch, Baxi, Ideal and others.
What does a properly certified new boiler installation include?
Every installation is carried out to manufacturer and Building Regulations standards, registered with Gas Safe, and notified to Building Control as required — you’ll receive the certificate as proof. We protect your home while we work, remove the old boiler, and test the new system thoroughly before handover, showing you how to use the controls.
Every installation is carried out to manufacturer and Building Regulations standards, registered with Gas Safe, and notified to Building Control as…
Will a new boiler actually reduce your gas bills?
Replacing an old, inefficient boiler with a modern condensing model can noticeably reduce your gas use. Combined with good controls — a programmable thermostat or smart controls — you get a warmer home for less. We’re happy to advise on controls as part of the installation.
Replacing an old, inefficient boiler with a modern condensing model can noticeably reduce your gas use.
Frequently Asked Questions
How long does a new boiler installation take?
A straightforward combi swap is often completed in a day; more complex jobs, such as moving the boiler or changing system type, can take longer. We'll give you a clear timescale with your quote.
What's the difference between a combi and a system boiler?
A combi heats water on demand and needs no separate cylinder, ideal for smaller homes. A system boiler works with a hot water cylinder and suits larger homes with greater hot water demand.
Do you register the installation and provide a certificate?
Yes — every installation is registered with Gas Safe and notified to Building Control, and you receive the certificate for your records.
How long is the warranty on a new boiler?
Modern boilers carry long manufacturer warranties when fitted by an approved engineer, and we can arrange extended warranty cover offered by the manufacturer. The exact length depends on the brand and model — we'll explain the options for your chosen boiler.
Can you help me choose the right boiler?
Absolutely. We assess your home and hot water needs and recommend the right type and size — no over-selling.
How much does a new boiler cost in East London?
A new boiler installation with Gas First starts from £1,800, depending on the boiler you choose, your property and the work involved. We give you a clear, fixed quote after a free survey, with no obligation, and because we are approved installers for Baxi, Vaillant and Glow-worm you can qualify for an extended manufacturer warranty at no extra cost.
What Our Customers Say
Rated 5 stars by customers across East London
“Boiler installation was professional and efficient.”
Nazmin Begum | Barking, East London
“Boiler fitted professionally.”
Kay | Rainham, Essex
“New boiler installation, highly recommended.”
Jaspreet Virk | Romford, Essex
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Why Choose Gas First Ltd?
Professional, reliable, and certified gas engineering services across East London
Gas Safe Registered
All work carried out by fully certified Gas Safe engineers
Fast Emergency Response
Quick attendance for urgent gas & heating issues across East London
Transparent Pricing
Fair quotes with no hidden charges — you know the cost upfront
5-Star Customer Service
Rated highly by homeowners & landlords across East London
Experienced Local Engineers
Skilled team covering all East London boroughs
Domestic & Commercial
Services for homes, rentals, and businesses
Areas We Cover
We provide gas, boiler, and plumbing services across East London and nearby areas.
Need a Reliable Gas Engineer in East London?
Contact Gas First Ltd today for fast, professional gas, boiler, and plumbing services across East London.