What is Rare Plumbing Website?

A bespoke digital atelier providing precision engineering and climate control services for London's most discerning luxury estates.

How often should a boiler be serviced in London?

Manufacturers recommend an annual service by a Gas Safe registered engineer. This keeps your warranty valid, ensures safe operation and catches developing faults before they cause a breakdown — particularly important heading into winter.

What does a boiler service include?

Our full boiler service includes a visual inspection of the boiler and flue, cleaning of the burner and heat exchanger, checking gas pressure and combustion readings, testing all safety devices, inspecting the expansion vessel and all visible pipework connections, and issuing a written service record.

Will a boiler service keep my warranty valid?

Yes. Vaillant, Viessmann, Worcester Bosch and ATAG all require annual servicing as a condition of their manufacturer warranty. We issue a full service certificate and update the boiler's service record to maintain warranty compliance.

Why service in summer?

Summer is the ideal time. Engineers are more available, response times are faster and you avoid the autumn rush when everyone books at once. Servicing in summer means your boiler is fully prepared before the first cold spell.

Do you service all boiler brands?

Yes — our Gas Safe engineers service all major brands including Vaillant, Viessmann, ATAG, Worcester Bosch, Geminox, Keston, Ideal and more. We carry parts for the most common models on every van.

What if a fault is found during the service?

If we find a developing fault, we'll explain it clearly and provide an honest written quote for the repair before any work proceeds. There's no pressure — but acting early almost always costs less than emergency repair later.

Do you issue a Gas Safety Certificate?

A Gas Safety Certificate (CP12) is issued for rental properties as part of our landlord service package. For private homeowners, we issue a full service record and report. If you need a separate Gas Safety Inspection, we can arrange this at the same visit.

How long does a boiler service take?

A standard boiler service takes approximately 45–90 minutes depending on the model and access. We'll confirm the expected duration when booking.

020 7458 4949

17°C020 7458 4949 Book Now

RARE Plumbing London Gas Safe engineer carrying out an annual boiler service in a luxury London property

Summer Service Now Available

Boiler Servicing in
London

Gas Safe registered engineers. All major brands serviced. Service certificate issued. Prepare your heating system before winter arrives.

Book your summer service now

Earlier availability, faster response, and your boiler ready for winter before the autumn rush.

020 7458 4949 Book Online

Gas Safe Reg.

Certificate Issued

4.7★ Rated

13+ Years

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Gas Safe RegisteredAll major brands servicedService certificate issuedWarranty compliance maintainedMayfair · Belgravia · Hampstead · Marylebone

A boiler service in London takes 45–90 minutes and costs from £150 + VAT, carried out by a Gas Safe registered engineer who inspects the burner, heat exchanger, flue, safety devices and combustion readings. Annual servicing is required by all major manufacturers to keep your warranty valid and should be booked before winter when demand peaks.

Quick Facts

Suitable for: All boiler brands — Vaillant, Viessmann, ATAG, Worcester Bosch, Ideal, Keston, Geminox
Typical duration: 45–90 minutes depending on boiler model and access
Cost: From £150 + VAT (standard hourly rate)
Frequency: Annually — required by all manufacturers for warranty
Certificate: Written service record and combustion report issued
Best time to book: Summer — better availability and faster response

Why Now

Why service your boiler in summer?

Most homeowners wait until autumn — by which point engineers are fully booked and boiler faults cause real disruption. Summer is smarter.

Better availability

Summer is quieter. You get your preferred date and time, and a more thorough visit without the pressure of emergency queues.

Catch faults early

A summer service identifies worn parts before winter. Replacing a £40 expansion vessel in July costs far less than an emergency call-out in January.

Warranty compliance

Vaillant, Viessmann, Worcester Bosch and ATAG require annual servicing. A missed year can void your warranty — and most policies are date-sensitive.

Winter-ready boiler

Your boiler will enter winter fully serviced, tested and documented. No last-minute anxiety when temperatures drop.

What's Included

Our full boiler service

Every service is carried out by a Gas Safe registered engineer to manufacturer specification, with a written certificate issued at the end of the visit.

Visual inspection of boiler and flue
Clean burner and heat exchanger
Check gas pressure and combustion readings
Test all safety devices and controls
Inspect expansion vessel and pressure
Check all visible pipework and connections
Test condensate trap and drain
Record and verify all combustion data
Issue written service certificate

Landlord boiler service: We issue a Gas Safety Certificate (CP12) for rental properties. Book your landlord service and annual certificate in a single visit.

Brands we service

VaillantViessmannATAGWorcester BoschKestonGeminoxIdealBaxiHamworthy

Who books a summer service

Homeowners

Protecting their heating system and maintaining manufacturer warranty.

Landlords

Annual Gas Safety Certificate (CP12) required by law for rental properties.

Estate Managers

Scheduling annual servicing across multiple properties during the quieter summer months.

Property Managers

Coordinating compliance and service records for managed blocks and luxury flats.

Ready to book?

Summer slots filling fast. Gas Safe engineers — all prime London postcodes.

020 7458 4949 Book Online

Client Reviews

What London clients say

"Booked a summer service and the engineer was brilliant — thorough, tidy and explained everything clearly. Found a minor flue issue before it became a problem."

Edward H.

Marylebone

"We manage several properties and RARE handle all our annual boiler services. Reliable, professional and the paperwork is always correct for our compliance files."

Victoria P.

Belgravia

"Our Vaillant hadn't been serviced in two years. RARE came out in July, serviced it, found a worn part and fixed it on the same visit. Very impressed."

Jonathan M.

Hampstead

FAQ

Boiler Servicing Questions Answered

Common questions about annual boiler servicing in London.

Still have questions?

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