Gas Safe registered · Fixed price

Keep your boiler safe, efficient and warranty-valid.

An annual Gas Safe boiler service keeps your boiler running safely, protects your warranty and helps prevent winter breakdowns. Fixed price, same-week appointments.

A thorough service from a Gas Safe engineer. Fixed price, no upsell.
17+ years Fixed price, no call-out fee Same-week appointments Checkatrade 9.09/10
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Book your annual service

Tell us a few details and we'll call you back to arrange a convenient time. No obligation, no call-out fee.

FREE callback & fixed-price quote, no call-out fee, ever.
Google reviewsRated excellent on Trustpilot & Google by 1,000+ customers

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We'll call you back to arrange a convenient time. To book over the phone now, call 020 3633 1526.

Gas Safe Registered ★ 9.09/10Checkatrade689 reviews ★ 4.9TrustATrader95 reviews Trustpilot 4.6336 reviews 📅 Same-week servicefixed price, no call-out fee

A thorough service from a Gas Safe engineer. No upsell.

An annual service is about keeping your boiler safe, efficient and reliable, not about selling you a new one. We check it properly, tell you honestly how it's running, and give you a fixed price upfront. No pressure, no scare tactics, no surprise bills.

Worth doing every year

Why service your boiler

A yearly service is one of the simplest ways to avoid a cold, expensive winter.

Keep your warranty valid

Most manufacturers require an annual service to keep the warranty valid. We service all major makes and complete your record.

Lower running costs

A clean, well-tuned boiler burns less gas and runs more efficiently, so you waste less money heating your home.

Prevent breakdowns

We catch small faults before they become a winter breakdown, when call-outs are slowest and most stressful.

Stay safe (CO check)

We check for carbon monoxide and unsafe combustion, so you and your family stay safe through the heating season.

No corners cut

What's included in a service

A proper Gas Safe service, not a quick visual glance. Here's what your engineer does.

1

Inspect & visual checks

We check the boiler, controls, flue and pipework for wear, corrosion, leaks and correct installation.

2

Test combustion & flue

We run a flue-gas analysis to confirm the boiler is burning cleanly and check for carbon monoxide.

3

Clean & check key parts

We clean components as needed, check pressure, seals and safety devices, and make sure it's running right.

4

Report & advise

We tell you honestly how your boiler is running, flag anything to watch, and complete your service record.

Found a problem? If we spot something during the service, we'll explain it clearly and quote a fixed price before any extra work. You decide what happens next, no pressure.
Covered in every service

What we check

The key parts a Gas Safe engineer inspects to keep your boiler safe and efficient.

Combustion & gas pressure

We test the burner and gas pressure with a flue-gas analyser to confirm clean, efficient combustion.

Flue & CO safety

We check the flue and ventilation for safe operation and test for carbon monoxide leaks.

Controls & pressure

We check the system pressure, controls and thermostat are working correctly and set right.

Seals, valves & parts

We inspect seals, valves and key internal parts for wear, leaks and corrosion before they fail.

We service all major makes, including Worcester Bosch, Vaillant, Baxi, Ideal and Bosch. Your service record is completed so your warranty stays valid.

Rated by London homeowners

Real reviews from local jobs

Checkatrade 9.09/10 · TrustATrader 4.9 · Gas Safe registered

Trustpilot 4.6based on 336 reviews

"Tony was polite, knowledgeable and professional, completed my new radiator install quickly, efficiently and tidy up after. Would use again."

Patrick WatsonTrustpilot

"June was very professional and polite at all times, and turned up on time when expected. Area left clean and all working. Will definitely use again."

David DavisonTrustpilot

"Clear about their terms and prices from the outset… the engineer arrived when he said he would and carried out the work quickly and without leaving a mess."

Christian SheldonTrustpilot

"Lovely person called to book the appointment, Ricky the engineer was here in under 3 hours. Respectful, clean and explained the process as he went along. Fixed the fault quickly and efficiently."

Annette-Marie SmithTrustpilot
Why Mayfair Plumbers

The safe choice for your boiler service

What matters for a boiler serviceMayfair PlumbersMany others
Gas Safe registered engineersNot always
Fixed price agreed before bookingQuoted after
No call-out fee£70–£150
Same-week appointmentsWeeks of wait
Thorough service, no upsellPushy add-ons
Service record to keep your warranty validVaries
Simple and quick

Booked and serviced in 4 steps

1

Book or request a callback

Tell us about your boiler and where you are. We'll arrange a convenient time, often the same week.

2

A Gas Safe engineer attends

One of our engineers comes to you across North & Inner London, at a time that suits you.

3

Full service carried out

We inspect, test combustion, clean key parts and complete all the safety checks properly.

4

Report & record

We tell you how your boiler is running, complete your service record, and tidy up before we leave.

Real engineers, real jobs

Genuine local work, not stock photos

We service all major makes: Worcester Bosch, Vaillant, Baxi, Ideal, Bosch and more.

Worcester Bosch Vaillant Baxi Ideal Bosch
Your questions

Boiler service FAQs

How often should I service my boiler?
Once a year is the standard recommendation, and most manufacturers require an annual service to keep the warranty valid. A yearly service also keeps your boiler running efficiently and helps catch small faults before they cause a breakdown.
What's included in a boiler service?
Your Gas Safe engineer inspects the boiler, controls, flue and pipework, runs a flue-gas analysis to check combustion and carbon monoxide, checks pressure, seals and safety devices, cleans key parts as needed, and completes your service record. We then tell you honestly how your boiler is running.
How long does a boiler service take?
A standard service usually takes around 30 to 60 minutes, depending on the boiler and how accessible it is. If we find anything that needs attention, we'll explain it and quote a fixed price before doing any extra work.
How much does a boiler service cost?
You get a fixed price upfront before we book you in, with no call-out fee and no surprises. If you have multiple properties, ask about our landlord and multi-property rates.
Does a service keep my warranty valid?
Yes. Most boiler warranties require an annual service by a Gas Safe registered engineer. We service all major makes and complete your service record, so your warranty stays valid.
Do you offer service plans or landlord rates?
Yes. We can set up annual service arrangements and offer rates for landlords and property managers with multiple properties. Just let us know on the form or over the phone and we'll talk you through the options.
Where we work

Covering North & Inner London

Gas Safe engineers across the boroughs, with same-week appointments. Not sure if we cover you? Just call.

CamdenIslingtonHackneyHampstead Kensington & ChelseaBarnetHornseyDalston PaddingtonCanary WharfArchwayCricklewood StratfordTottenhamWalthamstowWood Green

Ready to book your annual service?

Keep your boiler safe, efficient and warranty-valid. Fixed price, same-week appointments.

Call 020 3633 1526 Book your service
020 3633 1526On call 24/7 across London
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