Boiler Repair Harrow
Over 20+ years experience covering the Harrow area
Insurance approved
90% repaired on the same day
0203 695 3137
Boiler Repair Harrow, 24 hours a day!
Boiler Repair Harrow, 24 hours a day. If your heating has stopped, your hot water has gone, or your boiler has locked out, our Gas Safe registered engineers cover Harrow with fast attendance and clear, practical advice.
Quick nav:
Need help now?
- Call: 0203 695 3137
- Book online: Request a call back
- Landlord: Gas Safety Certificate
If you have no heating or no hot water, tell us when you book and we will prioritise your appointment.
Why Harrow customers choose Boiler Repairs R Us
- Gas Safe registered engineers: safe, compliant work with a clean handover.
- Diagnosis first: we find the real cause of the fault, not guesswork fixes.
- Clear pricing: you get the options and costs explained before work starts.
- Repair first approach: where a safe repair is viable, we focus on restoring heating quickly.
Boiler repairs in Harrow homes and flats
Harrow includes a wide mix of family houses and flats across areas like Harrow-on-the-Hill, Kenton, Wealdstone, Pinner and Stanmore. We regularly attend homes with modern combi boilers as well as older system boilers with hot water cylinders. Typical issues include pressure dropping, intermittent lockouts, and radiators not heating evenly, especially where systems have not been serviced or cleaned for a long time. Our engineers diagnose properly, explain the options clearly, and complete safe repairs that keep your heating reliable.
What we commonly see in Harrow
- Pressure dropping due to leaks, PRV discharge, or expansion vessel faults.
- Radiators cold in some rooms from balancing issues, circulation faults, or sludge.
- No hot water on combi boilers linked to sensors, diverter valves, or flow restrictions.
- Boiler cutting out due to ignition problems, overheating, or safety lockouts.
Boiler and heating services in Harrow
We support homeowners, landlords and local businesses with repairs, maintenance and upgrades. If you are not sure what you need, book a visit and we will diagnose the issue and talk you through the best fix.
Emergency boiler repairs
Fast diagnosis and repair for breakdowns, lockouts, leaks and safety shut downs.
Boiler servicing
Improve reliability and efficiency, reduce breakdown risk, and keep systems safe.
New boiler installation
Replacement options where repair is not cost effective or the boiler is beyond its best.
Power flushing
Improve circulation and radiator performance where you have cold spots or noisy pipework.
Landlord gas safety certificates
Inspections and certification for rented properties, with clear pass or fail outcomes.
Pricing and what to expect
We keep pricing clear. Once we have assessed the fault, we explain what has failed, what is required to fix it, and the expected cost before work starts. Where parts are needed, we confirm availability and timescales first so you stay in control.
Common boiler faults we fix
- No hot water: diverter valve faults, sensors, flow issues, or plate heat exchanger restrictions.
- No heating: controls issues, circulation faults, valves, low pressure, or air in the system.
- Boiler not igniting: ignition components, gas supply issues, or safety lockouts.
- Pressure drops: leaks, expansion vessel issues, or radiator valve problems.
- Noisy boiler or kettling: restricted flow, scaling, or heat exchanger problems.
Boiler brands we repair
We work on most major boiler brands including Worcester Bosch, Vaillant, Ideal, Baxi, Potterton, Glow-worm, Viessmann and Alpha. For brand specific guidance, see our boiler manufacturer help hubs.
Areas we cover in Harrow
We cover Harrow including Harrow, Harrow-on-the-Hill, Kenton, Wealdstone, Pinner, Stanmore and South Harrow. Common postcodes we attend in this borough include HA1, HA2, HA3, HA5, HA7 and HA8.
Boiler repair Harrow FAQs
Do you cover Pinner and Stanmore?
Yes. We cover Harrow borough including Pinner and Stanmore.
My radiators have cold spots. Do I need a power flush?
Not always, but it can be a sign of sludge restricting flow. We diagnose the cause and advise whether flushing, balancing, or component repairs are needed.
Do you work with landlords and tenants?
Yes. We carry out repairs, servicing and landlord gas safety certificates for rented properties.
Can you repair my boiler, or will it need replacing?
We diagnose first. If a safe, cost effective repair is available, we will explain it clearly. If replacement is smarter, we will quote options and talk you through them.
What should I do if I smell gas?
Turn off the gas at the meter if safe, open windows, do not use switches or naked flames, leave the property and call the Gas Emergency Service on 0800 111 999. Then contact us once safe to do so.
Need a boiler engineer in Harrow? Call 0203 695 3137 or request a call back and we will get you booked in.
Written and reviewed by Gas Safe registered engineers. Last updated: December 2025.
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Get pricing and book repairHow we can assist with your Boiler in Harrow
- Emergency Boiler Repairs
- Boiler Service
- Landlord Safety Certificates
- New Boilers Installations
- Leaking Boilers
- Noisy Boilers
Boiler Repairs R Us have a skilled team of engineers with a long history of fixing boilers in and around the Harrow area. Our local Harrow team can assist with all gas, condensing, combi boiler installations and upgrades. All our plumbers are Gas Safe Registered so you can be assured all our work is carried out within the required regulations. So for complete customer satisfaction call us on 0203 695 3137!