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Boiler installation price calculator

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''Welcome to our boiler price calculator, this tool will help you get an idea of how much it will cost to install a combi or conventional boiler in your home. The boiler cost calculator will present you with a variety of different boiler types, with all the additional options needed to create a long lasting and energy efficient hot water and central heating system.

If you like the installation and boiler cost results, we'd be happy to pop round, survey your property and confirm a fixed price quotation. We provide Gas Safe registered plumbers in London who can carry out all types of boiler maintenance, repair and installation.

Please note that any price given on this page is for demonstrative purposes only and is designed to help give an idea of possible costs.

To use the calculator simply answer the questions below...

Scroll your mouse over the More information icon for further details & explanations

1. What type of boiler installation do you require?

Combination boiler system

More information heating and hot water directly from the boiler

Conventional boiler and cylinder system

More information heat the central heating system directly and produce hot water for your cylinder


2. What type of combination boiler would you like?

Mid range option (add £600)

More information Glow-worm Flexicom 24Kw combination boiler

Top range option (add £700)

More information Worcester-Bosch Greenstar Junior 24Kw combination boiler


3. Please select your install options from the list below

Low cost installation (add £850)

More information basic flush and install

Comprehensive installation (add £1200)

More information full powerflush and install


4. Which heating controls do you require?

None (add £0)

More information I can use the existing controls

Mid range option (add £135)

More information Siemens RDJ10-RF supplied and fitted

Top range option (add £195)

More information Honeywell CM927 supplied and fitted


5. Please choose any optional extras you would like?

Electrolytic Scale Reducer (add £89)

More information supplied and fitted (required with combi boilers)

Magnetic filtration unit (add £195)

More information supplied and fitted

Thermostatic radiator valves (add £45 each)

More information supplied and fitted, number required:

Radiators and towel rails (from £145)

More information supplied and fitted, prices vary

Gas safety certificate (add £29)

More information landlords requirement

Total cost (excluding VAT):

Prices do not include VAT which is to be charged at the standard rate.

Any price given on this page is for demonstrative purposes only. This tool, assumes straight forward circumstances without complications. Calculations are based on one day jobs, an unchanged flue terminal position and making use of existing gas pipework. All prices provided are subject to survey of your property.

For more information or to arrange a free consultation with one of our experienced engineers please either contact us on 0203 370 0066 or complete the form below and we will contact you shortly.

Boiler installation enquiry form

When are you looking to carry out the work?

  • ASAP
  • Within the next 4 weeks
  • Within the next few months
  • Not sure