Boiler Installation in Lewisham
Fixed price combi boiler installation for Lewisham's Victorian terraces, New Cross and Deptford flats, and homes toward the Blackheath border — fitted by Gas Safe registered engineers who cover this well-connected South East London borough every week.
How much does boiler installation cost in Lewisham?
Combi boiler installation in Lewisham starts from £1,399, fully supplied and fitted, with your thermostat, chemical inhibitor, scale reducer, copper pipework and Gas Safe certificate all included. There are no call-out charges and nothing added once the engineer is on site.
Boiler Installers Who Know Lewisham Properties
Lewisham mixes Victorian terraces around New Cross and Deptford, a busy town centre with good Overground and DLR links, and larger period houses toward the Blackheath border. We work across SE4, SE6, SE8 and SE13 every week.
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Victorian terrace pipework
Many terraces around New Cross and Deptford still run older pipework, which we assess and upgrade as part of one fixed-price job.
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Rental flats & student housing
Lewisham has a strong rental market near the universities. We issue landlord Gas Safety Certificates the same day.
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Larger houses near Blackheath
Homes toward the Blackheath border often have two or more bathrooms, changing the boiler size we recommend.
What We Offer in Lewisham
A full range of Gas Safe registered heating services, not just installation — everything covered by one fixed-price provider.
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Combi Boiler Installation
Fixed price from £1,399, same day available.
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System Boiler Conversion
From £3,500, for homes needing stronger simultaneous hot water.
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Like-for-Like Replacement
From £1,050, the fastest and cheapest swap option.
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Boiler Repair & Servicing
Fault diagnosis and annual servicing to keep warranties valid.
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Landlord Gas Safety Certificates
Same-day CP12 certification for rental properties.
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Central Heating Installation
Full boiler, radiator and pipework installs from £4,000.
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Smart Thermostat Installation
Free when bundled with a boiler, or £150 standalone.
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Emergency Boiler Repair
24/7 availability for total breakdowns.
Which Boiler Is Best for Your Lewisham Home or Flat?
Property type and bathroom count, not bedroom count, drive this decision. Here's the honest breakdown for Lewisham's housing mix.
| Property | Best Fit | Why |
|---|---|---|
| Flat, 1 bathroom (New Cross/Deptford) | 24kW–27kW Combi | Compact, fits kitchen cupboards, handles single-bathroom demand well |
| 2-3 bed terrace, 1 bathroom | 27kW–30kW Combi | Slightly higher output for family kitchen + bathroom use |
| Larger house near Blackheath, 2+ bathrooms | System Boiler + Cylinder | Delivers strong pressure to multiple bathrooms simultaneously |
| Shared house / HMO | 30kW+ Combi or System | Sized for real, heavy simultaneous tenant demand |
24kW–27kW Combi Boiler
Compact units suited to flats near New Cross and Deptford.
See 24-27kW packages →27kW–30kW Combi Boiler
Right for typical Lewisham family terraces.
See 27-30kW packages →System Boiler + Cylinder
Homes with multiple bathrooms near Blackheath border. Call for a free assessment.
Ask an engineer →Why Lewisham Homeowners & Landlords Choose Us
Price published before you call
What you see on our packages page is what you pay — no vague "call for quote" estimates.
Gas Safe, NAPIT & City & Guilds
Every engineer carries a valid Gas Safe ID card you can check on arrival.
500+ installs across London
We've handled the terrace pipework and rental compliance needs Lewisham brings.
Same day & next day available
Call in the morning for a same-day slot.
Scale reducer fitted as standard
South East London's hard water is a leading cause of boiler breakdown — protected as standard, not an add-on.
Certificate issued same day
Your Gas Safe certificate and warranty registration are completed before the engineer leaves.
Lewisham Boiler Installation — Common Questions
What services do you offer in Lewisham?
We offer fixed-price combi boiler installation, system boiler conversion, like-for-like boiler replacement, boiler repair and servicing, landlord Gas Safety Certificates, central heating installation, and smart thermostat fitting across Lewisham.
Which boiler is best for a Lewisham flat versus a house?
Flats near New Cross and Deptford with one bathroom are usually best served by a 24kW to 27kW combi boiler. Larger Victorian houses near Blackheath border with two or more bathrooms typically need 30kW or above, or a system boiler with a cylinder.
Do you install boilers in Victorian terraces around New Cross and Deptford?
Yes. Many terraces in this part of Lewisham still run older pipework, which we assess and upgrade as part of one fixed-price job.
Do you offer same day boiler installation in Lewisham?
Yes, subject to engineer availability. Call in the morning and we'll confirm same day or next day availability for your SE4, SE6, SE8 or SE13 postcode.
Our Boiler Services
Everything we do in Lewisham, in one place.
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Get a Fixed Price for Your Lewisham Boiler Today
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Gas Safe Registered · +44 7912 100949 · Available 24/7 for emergencies