Draught-proofing for Portsmouth properties
We cover Portsmouth and the PO1 postcode district, including nearby Gosport, Fareham and Havant. It is about 16 miles south-east of Southampton.
Small measures like this are often among the cheapest per pound saved, and they suit Portsmouth homes of every age. We check ventilation as carefully as insulation in Portsmouth homes, because both matter for keeping a house dry.
On compliance, if cavity wall insulation follows in Portsmouth, 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 Portsmouth
- Door and window seals
- Skirting and floor gap sealing
- Letterbox and keyhole covers
- Loft hatch seals
Guide prices for Portsmouth
| 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.
How it works in Portsmouth:
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.