Boiler Installation in Islington
Fixed price combi boiler installation for Islington's Georgian squares, terraced conversions and garden flats — fitted by Gas Safe registered engineers who know the borough's period property pipework.
How much does boiler installation cost in Islington?
Combi boiler installation in Islington starts from £1,399, fully supplied and fitted, with your thermostat, chemical inhibitor, scale reducer, copper pipework and Gas Safe certificate all included. Larger boilers for Barnsbury and Canonbury townhouses go up to £2,699, depending on boiler size and brand rather than your exact street.
Boiler Installers Who Know Islington Properties
Islington is defined by Georgian squares, narrow terraced houses split into flats, and a growing number of garden and basement conversions. Each brings its own flue routing and access considerations. We work across N1 every week.
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Garden & basement flat conversions
Common across Barnsbury and Canonbury. We route the flue externally and handle notification to the freeholder or other flat owners where required.
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Georgian square townhouses
Islington has some of London's best-preserved Georgian squares. We route flues discreetly to protect the frontage.
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Narrow terraced staircases
Removing an old cylinder from a narrow Victorian staircase needs care. Our engineers plan the route before starting work.
Best Boiler for Islington Homes & Flats
24kW Combi Boiler
Compact units suited to Upper Street and Highbury Corner flats.
See 24kW packages →28kW–30kW Combi Boiler
Right for Barnsbury and Canonbury family homes.
See 28-30kW packages →Custom Sizing Assessment
Basement and garden flat conversions need a proper flue check. Call for a free assessment.
Ask an engineer →Why Islington Homeowners Choose Us
Price published before you call
What you see on our packages page is what you pay.
Gas Safe, NAPIT & City & Guilds
Every engineer carries a valid Gas Safe ID card.
500+ installs across London
We've handled the conversion flat and terrace issues Islington brings.
Same day & next day available
Call in the morning for a same-day N1 slot.
Islington Boiler Installation — Common Questions
Can you install a boiler in a garden flat conversion?
Yes. Garden and basement flat conversions are common across Barnsbury and Canonbury. We route the flue externally and handle notification to the freeholder or other flat owners where the building is shared.
Do you install boilers in Georgian square townhouses?
Yes. Islington has some of London's best-preserved Georgian squares. We route flues discreetly to protect the frontage and work with conservation area requirements where they apply.
What size boiler do I need for an Islington flat or house?
One and two bedroom conversion flats near Upper Street are usually well served by a 24kW to 28kW combi. Larger Barnsbury and Canonbury townhouses typically need 30kW or above.
Do you offer same day boiler installation in Islington?
Yes, subject to engineer availability. Call in the morning and we'll confirm same day or next day availability for your N1 postcode.
Our Boiler Services
Everything we do in Islington, in one place.
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