What's different about London
London installs sit at the top of the range: labour, parking and access cost more, outdoor unit siting is tighter, and many homes are flats, terraces or in conservation areas where permission and pipework add time.
Installers quoting in London usually cover Croydon, Bromley, Ealing, Enfield, Barnet and Kingston. If an installer doesn't routinely work in your postcode, travel and return-visit costs tend to be built into the price — which is exactly why we match on postcode first.
What moves your quote up or down
- Heat loss calculation — A room-by-room heat loss survey sets the unit size. An oversized unit costs more to buy and more to run.
- Radiators and pipework — Heat pumps run at lower flow temperatures, so some radiators may need to be larger.
- Hot water cylinder — Most homes need a new cylinder, plus somewhere to put it.
- Insulation — Loft and cavity work is often recommended first, and changes both the unit size and running cost.
How to compare quotes in London
Get at least three quotes from installers covering your postcode and compare them line-by-line rather than on the headline price. Our Heat pump costs UK guide explains what each line on a quote actually means.