Draught-proofing across West Sussex
We cover 9 towns in West Sussex, including Crawley, Worthing, Bognor Regis, Littlehampton, Horsham and more.
We check ventilation as carefully as insulation in West Sussex homes, because both matter for keeping a house dry. In West Sussex homes this is often done on the same visit as a cavity fill, which saves a second trip.
Building Regulations in England
Filling an existing cavity wall is notifiable building work in England. Either a building notice goes to building control before the work, or the installer self-certifies it through a government-approved competent person scheme such as CIGA's CWISC scheme. The insulation used must also be suitable for the wall it goes into, which is why the survey checks construction, condition and exposure first.
Funding in England
- ECO4, the energy-supplier scheme, has been extended to 31 December 2026 and government has said there will be no successor supplier obligation.
- The Great British Insulation Scheme closed as planned on 31 March 2026.
- Warm Homes: Local Grant supports low-income households in England through councils, and the January 2026 Warm Homes Plan sets out fully funded upgrades for low-income homes, with more detail still being published.
Sources: Planning Portal: cavity wall insulation and building regulations; CIGA: CWISC competent person scheme; 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
- Door and window seals
- Letterbox and keyhole covers
- Loft hatch seals
- Skirting and floor gap sealing
Draught-proofing prices in West Sussex
| Draught-proofing guide prices | Guide 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.
What happens next for a West Sussex property:
Get in touch
Online, by phone or WhatsApp.
Survey visit
We check the space, what is there now and how it is ventilated.
Your quote in writing
A fixed price, with any extras listed separately.
Booked work
Carried out by the installer named on your quote.