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London · Greater London

Draught-proofing in London

Looking for draught-proofing in London? We survey first, name the installer, their scheme registrations and the guarantee on the quote, and only then book the work. Draught-proofing seals the gaps that let warm air out and cold air in, around doors, windows, letterboxes, loft hatches and skirting boards, while leaving planned ventilation alone.

Free survey in London

Covering London and the EC1A district. Tell us about the property and we will arrange a free survey and a fixed price.

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We use your details only to answer this enquiry and arrange your visit, sharing them only with the registered installer we appoint for your job and the providers named in our privacy notice. No marketing lists, no cold calls.

Draught-proofing for London properties

If your property is in London or the EC1A district or nearby Pimlico, Islington and Camden Town, it is within our Greater London coverage. London is one of the main towns we cover in Greater London.

In London homes this is often done on the same visit as a cavity fill, which saves a second trip. We check ventilation as carefully as insulation in London homes, because both matter for keeping a house dry.

In terms of approvals, if cavity wall insulation follows in London, filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Funding in England

In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils.

Sources: GOV.UK: extending the ECO4 end date, government response; GOV.UK: Warm Homes Plan.

Ventilation still matters

Trickle vents, air bricks and extractor fans are there for a reason. We seal accidental gaps, not the ventilation your home needs to keep condensation down.

What is included in London

  • Loft hatch seals
  • Door and window seals
  • Letterbox and keyhole covers
  • Skirting and floor gap sealing

Guide prices for London

Draught-proofing guide prices
Draught-proofing guide pricesGuide price
Whole-house draught-proofing£195–£495
Doors and loft hatch only£145–£295

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

How it works in London:

  1. Get in touch

    Online, by phone or WhatsApp.

  2. Survey visit

    We check the space, what is there now and how it is ventilated.

  3. Your quote in writing

    A fixed price, with any extras listed separately.

  4. Booked work

    Carried out by the installer named on your quote.

Last reviewed 19 October 2026.

Draught-proofing in London: questions

Can you do this on the same visit as cavity wall insulation in London?

Often, yes. If your London home also has unfilled cavity walls, both can be surveyed together and priced separately on one quote.

How much does draught-proofing cost in London?

Our guide ranges for draught-proofing are shown on this page. The fixed price for your London property is confirmed in writing after the survey, before any work starts.

Is there VAT on draught-proofing in London?

Installing insulation in a home is currently zero-rated for VAT until 31 March 2027, then 5%. Commercial buildings are standard-rated.

Are there grants for insulation in London?

In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils. We cannot promise funding, but we will point you to the right official route.

Nearby towns

Book a free survey in London

Free survey with an install quote. Written result. Fixed price before any work.