Heating & Boilers · Greater London

Cost of Full Central Heating Installation in London (2026)

If you're looking at full central heating installation in London right now, you should be seeing quotes in the £4,725 to £10,800 range per system. That's based on current Greater London contractor rates and the wider UK market. Anything well outside those numbers is worth questioning before you sign.

Typical cost in London +35%
Low £4,725
Typical £7,763
High £10,800
Typical price per system Last updated 22 April 2026
  • Gas Safe Registered engineers only
  • OFTEC For oil-fired appliances
  • MCS Heat-pump certification
  • HETAS Solid fuel & biomass

About full central heating installation in London

London is a major city of around 8,982,000 in Greater London. The housing is mostly The EC area is dominated by converted warehouses, Georgian townhouses and new-build City fringe apartments. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like EC, WC, E tend to be quicker jobs with standardised fittings. Local trade prices sit on the expensive side for UK trade work. That's mostly wage levels plus the cost of running a van and a yard in and around Greater London.

London's the deepest trade market in the country, and also the priciest. ULEZ, congestion charge, parking permits, higher van insurance — it all feeds into the day rate. Most decent firms charge a callout and central boroughs run a clear premium over zones 4 and 5. Book two to three weeks ahead if you can.

Heating is a regulated trade. Gas Safe for anything gas, OFTEC for oil, HETAS for wood burners and stoves, MCS for heat pumps. The bulk of the price is the engineer's time, roughly £300 to £500 a day in 2025, plus the appliance. A summer quote on the same job is usually 10 to 15 percent less than a winter emergency one, so don't leave an ageing boiler until October.

Full Central Heating Installation cost breakdown in London

Basic £4,725 – £6,480

2-bed flat, combi boiler, 5 radiators

Standard £6,480 – £8,775

3-bed house, combi boiler, 8–10 radiators

Complex £8,775 – £13,500

4–5 bed house, system boiler with cylinder, 12+ radiators

What affects the price of full central heating installation in London?

  • Number of radiators (bedrooms + reception rooms)
  • Property size and pipework runs
  • Boiler choice and flue routing
  • Hot water cylinder vs combi setup
  • Floor finish disruption (lifting boards vs surface-mounted)

London vs the UK average

London sits in the heating & boilers market at a cost multiplier of 1.35× the UK national average. That puts London full central heating installation prices at £4,725–£10,800 versus the UK average of £3,500–£8,000 per system.

London vs UK national average — per system London £4,725 £10,800 UK average £3,500 £8,000
Typical price range, per system

Full Central Heating Installation cost calculator — London

Estimated cost in London
£6,805 – £9,215
per system

Estimate based on live 2025 UK trade pricing. Always get 3 written quotes before committing.

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What's typically included in a full central heating installation quote

  • Supply and fit of boiler, radiators, pipework and controls
  • Gas Safe and Building Regulations certification
  • System inhibitor and pressure test
  • Commissioning and handover

Frequently asked questions

How much does full central heating installation cost in London?

Budget £4,725 to £10,800 per system for full central heating installation in London. Prices here are around 35% more expensive than the UK average. What moves a quote inside that range is mostly heating contractor day rates in Greater London and the specific material list for your job.

How long does full central heating installation take in London?

A straightforward full central heating installation job in London runs to 3–7 days. You can lose days to things outside the contractor's control — parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.

What's included in the price of full central heating installation in London?

A proper full central heating installation quote in London should cover: Supply and fit of boiler, radiators, pipework and controls; Gas Safe and Building Regulations certification; System inhibitor and pressure test; Commissioning and handover. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.

Is full central heating installation cheaper in London than the UK average?

Full Central Heating Installation in London runs around 35% more expensive than the UK average. The UK-wide benchmark for this job is £3,500 to £8,000 per system; London quotes tend to land between £4,725 and £10,800. Handy to know what the average actually looks like before you price round.

Do I need planning permission for full central heating installation in London?

Most full central heating installation jobs don't need planning permission, but Building Regulations and any manufacturer or trade-body sign-off still apply. If the property sits in a conservation area or is listed, ring Greater London Council before you book anything in. It's a free call and saves a world of grief later.