Range from the cheapest new boiler installation £800 (Osman Plumbing & Heating Services Ltd based in TW3) to the dearest boiler installation £1,800 (ThePlumbers.org based in TW7).

New combi boilers cost from around £650 to £2,500 depending on the manufacturer and kW output.

Comparing TW3 heating engineers estimates for combi or system boiler upgrade gives you a good idea of prices but the best way to compare costs is to get quotes.

What to do -  Get boiler installation quotes by posting your job on HaMuch and we will send it to your local heating engineers in TW3.

^*Prices are estimates based on the hourly or day rate of heating engineers in TW3, UK boiler offers and materials.