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Boiler Installation — Hillingdon

Boiler Installation in Hillingdon

Gas Safe registered engineers installing new boilers across HillingdonUxbridge, Hayes, Ruislip, Northolt. From £1,500 installed. Vaillant, Worcester Bosch, Baxi, Ideal and Viessmann. Free assessment included.

Covering all of HillingdonFrom £1,500 installedGas Safe registered60 Checkatrade reviews120 MyBuilder reviews

Choosing the right boiler in Hillingdon

Choosing the Right Boiler for Your Property

Combi boiler

The most popular choice for London flats and smaller terraces. Heats water on demand — no cylinder or loft tank needed. Ideal for 1-3 bedroom properties. Loses efficiency with very high simultaneous hot water demand (e.g. two showers running).

System boiler + cylinder

Best for larger London homes with 2+ bathrooms. Stores hot water in a cylinder for simultaneous demand. Requires a cylinder cupboard. Works well with solar thermal top-up and heat pumps.

Boiler efficiency

All new boilers installed since 2005 must be A-rated (90%+ efficient). Replacing a G-rated boiler from the 1980s or 1990s with a modern A-rated unit typically reduces gas consumption by 30-40% — paying back the installation cost over 5-8 years.

Warranty: Worcester Bosch offers up to 12 years warranty; Vaillant up to 10 years; Baxi up to 10 years — all require annual servicing by a Gas Safe registered engineer to remain valid. We register your warranty on the day of installation.

Areas in Hillingdon we cover

UxbridgeHayesRuislipNortholt

What we do in Hillingdon

Boiler installation checklist

Free boiler assessment — sizing your new boiler for property and hot water demand
Boiler brand recommendations — Vaillant, Worcester Bosch, Baxi, Ideal, Viessmann
Old boiler removal and responsible disposal
New boiler installation — combi, system or heat-only configurations
Flue installation — concentric flue, extended flues, roof terminal if needed
Gas pipework modifications — upgrading or rerouting supply pipework
System flush before installation — clearing old sludge protects new boiler
Magnetic filter fitting — protecting new boiler from sludge and magnetite
Smart thermostat installation — Boiler Plus compliant, Nest/Hive/tado options
Commissioning and gas pressure testing — Gas Safe notification included
Manufacturer warranty registration — up to 12 years with annual service
Handover and controls demonstration — you know exactly how to operate it

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Common questions

Boiler Installation Hillingdon: frequently asked

How much does boiler installation cost in Hillingdon?

Boiler installation in Hillingdon starts from £1,500 for a standard combi-for-combi swap in the same location. A new combi with a new flue position costs £2,000-£3,500. A system boiler with cylinder starts from £2,500. The full price is confirmed after a free assessment — we cover Uxbridge, Hayes, Ruislip, Northolt.

How long does boiler installation take in Hillingdon?

A standard combi-for-combi swap in Hillingdon takes one day. Installations requiring a new flue position or a system boiler with cylinder typically take 1-2 days. A full heating system installation (boiler, radiators, pipework) takes 2-4 days.

Which boiler brand should I choose for my Hillingdon property?

Vaillant and Worcester Bosch are the most reliable long-term choices for Hillingdon properties and offer the longest warranties. Baxi and Ideal offer better value for budget-conscious projects. We recommend based on your property size, water pressure and budget — and only fit brands we trust to service long-term.

Do I need a new boiler or can mine be repaired in Hillingdon?

We give honest advice at every call-out in Hillingdon. Boilers under 10 years old are usually worth repairing. Boilers over 15 years old, or those with multiple recurring faults, are typically more cost-effective to replace — the energy savings from a modern A-rated unit often cover the installation cost within 5-8 years.