MOST REQUESTED
Boiler Repairs & Breakdowns
Fault finding for no heating, no hot water, pressure problems, leaks, lockouts, controls and boiler error codes.
Call for a repairBoiler breakdown? No heating or hot water?
Boiler Repairs Across W, SW & NW London
Experienced fault diagnosis and boiler repairs with over 20 years in the trade. No call-out fee — you pay for the engineer's time. Same-day appointments available when possible.
✓ 20+ years' experience✓ No call-out fee✓ 1-month labour guarantee
REAL CHECKMATE GAS WORKBoiler repairs & diagnostics
Boiler Repairs
Boiler Installation
Boiler Servicing
Landlord Gas Safety
Priority service: boiler repairs
Get your heating and hot water working again
From an error code to a complete boiler breakdown, Checkmate Gas diagnoses heating faults across West, South West and North West London.
No heating
No hot water
Boiler losing pressure
Boiler leaking
Fault code showing
Ignition problems
Unusual boiler noises
Boiler keeps switching off
Fastest way to explain the problem: WhatsApp your postcode, boiler make/model, fault code and a photo. We can then arrange the earliest suitable appointment.
VaillantWorcester BoschIdealBaxiKestonOther makes welcome
Heating services
Repair first. Replace when it makes sense.
Boiler Installation
Replacement and new boiler installations with straightforward advice on the right solution for your property and heating needs.
Boiler installation details
Boiler Servicing
Annual boiler servicing to check safe operation, condition and performance, with any concerns explained clearly.
Book a serviceBoiler specialist knowledge
Help for the boilers London homes actually use
Rather than a generic plumbing site, Checkmate Gas is building dedicated repair information around the boiler brands and breakdown problems we work with. Send the make, model, fault code and a photo for a faster first conversation.
Straightforward pricing
Clear prices. No separate call-out charge.
Know the basic cost before you book. Repair parts are additional where required, and boiler installations are quoted after the job has been assessed.
Boiler Repairs
£145
per hour
No call-out charge. Parts additional where required.
Boiler Service
£145
Standard boiler service.
Gas Safety Certificate
£90
Landlord gas safety certificate / CP12.
Service + CP12
£145
Boiler service and gas safety certificate together.
SAVE £35Boiler Installation
From £1,750
Final price depends on boiler manufacturer, specification and work required. Site assessment required for an official quote.
Genuine work
Real boilers. Real fault finding. Real installations.
A selection of Checkmate Gas work. Customer details are not displayed.
Landlords & estate agents
One experienced contact for heating and gas work
Boiler breakdowns, annual servicing, landlord gas safety certificates, tenant appointments and boiler replacements for rental properties across the service area.
Areas covered
Local boiler engineer across W, SW & NW London
Checkmate Gas serves homeowners, landlords and property professionals throughout West, South West and North West London. The postcodes below are our first priority SEO areas — they are not the limit of our coverage.
West London
Including Shepherd's Bush, Hammersmith, Chiswick, Acton, Notting Hill and surrounding W postcodes.
South West London
Including Fulham, Chelsea and surrounding SW postcode areas.
North West London
Including Kilburn, Hampstead and surrounding NW postcode areas.
Not listed below? We cover W, SW and NW London more broadly. Call or WhatsApp your postcode and we will confirm availability.
Direct engineer • No call centre
Speak directly with an experienced heating engineer
From the first WhatsApp message through to diagnosis or installation, the aim is simple: clear communication, straightforward pricing and practical advice from the person doing the work.
Verified customer feedback
What Checkmate Gas customers say
Checkmate Gas currently has 85 reviews on Checkatrade. Here are short excerpts from verified reviewers for work that matches the services we specialise in.
10/10 • Central Heating
“Always reliable, friendly and hard-working.”Verified reviewer • W12 • January 2026
10/10 • Emergency Heating Repair
“Fast and reliable and has sorted out all the issues at home.”Verified reviewer • NW10 • May 2025
10/10 • Boiler Installation
“All arranged and installed within 24 hours.”Verified reviewer • W4 • May 2025
Need help with your boiler?
Tell us what's gone wrong
For a breakdown, send your postcode, boiler make/model, fault code and a photo by WhatsApp — or call Checkmate Gas directly.