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Central Heating Installation Cost London: What to Budget

1 January 2025·6 min read

Central Heating Installation Costs in London

Installing central heating from scratch in a London property is a significant investment — but for landlords particularly, the return in rental value and compliance with decent homes standards makes it worthwhile.

Typical Full Central Heating Installation Costs in London

  • 1-bedroom flat (6 radiators): £4,000–£6,500
  • 2-bedroom house (8 radiators): £5,500–£8,500
  • 3-bedroom house (10 radiators): £7,000–£11,000
  • 4-bedroom house (12–14 radiators): £9,000–£14,000+

These prices include boiler supply and installation, all radiators, pipework, controls (thermostat and TRVs), and commissioning. Prices are indicative — a property survey is required for an accurate quote.

What Affects Central Heating Cost in London

  • Property type — terraced houses with accessible floor void are cheaper than solid floor properties requiring surface-mounted pipes
  • Pipework routing — properties requiring pipework under solid concrete floors cost significantly more
  • Boiler specification — combi or system boiler affects whether a cylinder is needed
  • Number of bathrooms — system boilers with cylinder are needed for properties with multiple bathrooms requiring simultaneous hot water
  • Finish required — making good after pipework installation (plastering, flooring reinstatement) adds cost

Frequently asked questions

Can I get a grant for central heating installation in London?

Several schemes exist for eligible London households. The Great British Insulation Scheme and ECO4 may cover central heating installation for low-income households or properties with low energy ratings. Some London boroughs have additional fuel poverty programmes. Landlords of private rented properties with energy rating E or below may qualify for funding under ECO4 — check eligibility with an energy assessor.

How long does a central heating installation take in London?

A full central heating installation in a 3-bedroom London house typically takes 3–5 days depending on access and pipework complexity. A flat with good access may be completed in 2–3 days. Solid-floor properties requiring surface-mounted or new-channel pipework take longer. The property may not be habitable during installation.

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

No — central heating installation does not require planning permission in London. Building regulations do apply: the boiler installation must be notified to building control (usually done by the Gas Safe engineer through the Competent Person Scheme), and the system must meet current efficiency requirements under Part L of the Building Regulations.