Internal wall insulation · Perth and Kinross
Internal wall insulation in Perth
Internal wall insulation in Perth: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For terraced homes in Perth with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in PH1 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Perth
Postcode, service and a phone number is all we need.
What's included
- Sockets, radiators, skirting and coving are moved and refitted
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Can be done one room at a time during a renovation
Perth: walls, weather and approvals
We cover Perth and nearby Blairgowrie, Crieff and Glenrothes. Tayside has stone tenements and terraces in the towns, harled cottages and post-war estates.
Exposure to wind-driven rain varies across Perth and Kinross: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
Where a property in Perth is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- PH1
- County or area
- Perth and Kinross
- Nation
- Scotland
- Nearby
- Blairgowrie, Crieff, Glenrothes, Dundee
Scotland: planning and regulations
Internal insulation rarely needs planning permission; listed buildings need consent for internal changes.
Over-cladding work in Scotland often needs a building warrant from the council's building standards service, with Section 6 of the Technical Handbooks setting insulation benchmarks.
What are the risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Perth
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
From enquiry to finished wall
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Internal wall insulation in Perth: questions
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
Do you cover Perth?
Yes — we survey and quote internal wall insulation in Perth (PH1) and nearby Blairgowrie, Crieff and Glenrothes, with a fixed written price before any work starts.