Boiler Repair Lewisham
Over 20+ years experience covering the Lewisham area
Insurance approved
90% repaired on the same day
0203 695 3137
Boiler Repair Lewisham, 24 hours a day!
Boiler Repair Lewisham, 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 Lewisham 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 Lewisham 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: if a safe repair is viable, we focus on restoring heating and hot water quickly.
Boiler repairs in Lewisham homes and flats
Lewisham has a wide mix of Victorian and Edwardian houses, conversions, and modern flats across areas like Deptford, New Cross, Brockley, Forest Hill and Catford. We regularly attend properties where boiler installations are in cupboards, loft spaces, or older kitchen units, and where heating controls have been changed over the years. In flats and conversions, intermittent hot water issues and pressure faults are common. In larger homes, circulation problems and radiator performance can suffer if system water quality has not been maintained. Our focus is always to diagnose properly, repair safely, and leave you with a stable heating and hot water setup.
What we commonly see in Lewisham
- Low pressure and repeat topping up from small leaks, PRV discharge, or expansion vessel faults.
- No heating but hot water linked to valves, circulation issues, or controls faults on system setups.
- Hot water going warm then cold on combi boilers due to sensors, diverter valves, or scaled plate exchangers.
- Radiators cold at the bottom where sludge restricts flow and a power flush may be recommended.
Boiler and heating services in Lewisham
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 Lewisham
We cover Lewisham and nearby areas including Lewisham, Deptford, New Cross, Brockley, Catford, Forest Hill, Sydenham, Blackheath and Lee. Common postcodes we attend in this borough include SE4, SE6, SE8, SE12, SE13, SE14, SE23 and SE26.
Boiler repair Lewisham FAQs
How quickly can you attend in Lewisham?
We prioritise no heating and no hot water calls. Availability depends on engineer schedules and traffic, but we aim for fast attendance and give a realistic ETA when you book.
My radiators are cold at the bottom. What does that mean?
Cold spots can indicate sludge in the system 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 across Lewisham.
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 Lewisham? 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 Lewisham
- 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 Lewisham area. Our local Lewisham 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!