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New Boiler Installation in Mayfair

Great Gas Limited provides trusted new boiler installation, servicing and repairs in Mayfair and across London. Our Gas-Safe registered engineers deliver fixed-price installs, annual services and fast repairs for homes in Mayfair and Marylebone, Belgravia and Soho — with 0% APR finance, warranties up to 12 years and a five-star reputation.

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★★★★★ 5 · 44 Google reviews Gas Safe reg. 12570456 Fixed-price guarantee Mayfair · W1

New boiler installation in Mayfair by Great Gas Limited

★★★★★ 44 Google reviews

Gas Safe registered 0% APR finance available Install in as little as 48 hours Up to 12-year warranty Fully insured engineers

Fast, free & easy

Get your quote in Mayfair

New boiler

Fixed-price supply & installation by certified, Gas-Safe registered engineers — often within 48 hours.

A-rated boiler of your choice
Up to 12-year manufacturer warranty
0% APR finance available

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Boiler service

Keep your boiler safe and your warranty valid with an annual service & safety check from our engineers.

Full safety & efficiency check
Certified, fully-insured engineers
Flexible appointment times

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Our services in Mayfair

Boiler & heating services for your Mayfair home

Most requested New Boiler Installation in Mayfair by Great Gas Limited

New Boiler Installation in Mayfair

Looking for a new boiler installation in Mayfair? Great Gas supplies and fits A-rated combi, system and regular boilers from the leading brands, at a fixed price agreed up front. Our Gas-Safe registered engineers handle everything — from sizing the right boiler for your Mayfair home to a clean, careful installation, often within 48 hours.

Every install comes with a manufacturer-backed warranty of up to 12 years, 0% APR finance options and a full system check, so your heating is efficient, safe and built to last.

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Recommended Boiler Servicing in Mayfair by Great Gas Limited

Boiler Servicing in Mayfair

Landlord or homeowner, our Mayfair boiler servicing is thorough, honest and fairly priced. You'll get a clear report of what we checked and any recommendations — never upselling, just straight advice.

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Boiler Repairs in Mayfair

We fix boilers properly, not just temporarily. Our Mayfair repairs get to the root cause so the fault stays fixed, backed by a guarantee on parts and labour.

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Emergency Boiler Repairs in Mayfair

Fully insured, Gas-Safe registered and local to Mayfair, our emergency team gets you back up and running when it matters most.

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Boiler Engineers & Services in Mayfair

Fully insured and Gas-Safe registered, our Mayfair boiler engineers deliver work that's safe, compliant and built to last.

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Gas Safety Certificates in Mayfair

Stay legal and protect your tenants. Fast, professional gas safety checks across Mayfair, with clear reporting and annual reminders so you never miss a renewal.

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Emergency Heating Engineers in Mayfair

Vulnerable household without heat in Mayfair? We prioritise you and work fast to restore comfort and safety.

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Central Heating Installation in Mayfair

Upgrade your home comfort with a professionally installed central heating system in Mayfair. Great Gas designs and fits complete systems — boilers, radiators, controls and smart thermostats — balanced for even, efficient warmth in every room.

Fixed-price quotes, tidy installation and full commissioning across Mayfair.

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Central Heating Repairs in Mayfair

No warmth where you need it? We'll restore reliable, even heat across your Mayfair home and explain exactly what we did.

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Central Heating Service in Mayfair

A well-maintained heating system runs cheaper and lasts longer. Our Mayfair service keeps radiators, pumps and controls in top condition.

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Why Mayfair homeowners choose Great Gas Limited

Gas-Safe registered, fully insured heating engineers delivering fixed-price installations, servicing and repairs across Mayfair and Marylebone, Belgravia and Soho.

Gas Safe registeredReg. 12570456

Fixed-price, no surprisesYour quote is the price you pay

Up to 12-yr warrantyManufacturer-backed cover

Fast installationOften within 48 hours

Serving Mayfair — click to load map

★★★★★

Google reviews

Based on 44 reviews

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Good to know

Frequently asked questions

How much does a new boiler installation cost in Mayfair?

Fixed-price new boiler installations start from £1,499 including supply and fitting. Your exact price is confirmed in under 60 seconds with our online quote — no obligation.

How quickly can you install a boiler in Mayfair?

For most homes in Mayfair we can complete the installation within 48 hours of your quote, subject to a quick survey.

Are your engineers Gas-Safe registered?

Yes. Every Great Gas Limited engineer is Gas-Safe registered and fully insured, so your installation, service or repair in Mayfair is safe and compliant.

Do you offer boiler servicing and repairs in Mayfair too?

Absolutely. As well as new boiler installations, we provide annual boiler servicing, repairs, emergency call-outs, gas safety certificates and full central-heating services across Mayfair.

Local coverage

Boiler installation across Mayfair & London

Great Gas Limited supplies, fits and services boilers throughout Mayfair and the surrounding W1 postcodes, across the wider London area. We regularly install boilers in neighbouring Marylebone, Belgravia and Soho as well — always at a fixed price agreed up front, fitted by Gas Safe registered engineers, with 0% APR finance options and manufacturer warranties of up to 12 years.

Ready for a new boiler in Mayfair?

Get your fixed-price, no-obligation quote online in under 60 seconds.

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