Solid wall insulation · Perth and Kinross
Solid wall insulation in Perth
Looking for solid wall insulation in Perth? We survey homes across Perth and the PH1 area, then give you a fixed written price before any work starts. For Perth homeowners weighing external against internal insulation, the survey sets out both with prices.
- Free survey in PH1 and nearby
- Guide price from £75 per m² + scaffold, 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
- Breathable options for stone and lime-mortared walls
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
- Internal insulation suits single rooms or where the outside can't change
- Both can be done in stages, elevation by elevation or room by room

Homes and walls in Perth
As well as Perth itself, we quote in 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.
For solid-walled homes in Perth, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- PH1
- County or area
- Perth and Kinross
- Nation
- Scotland
- Nearby
- Blairgowrie, Crieff, Glenrothes, Dundee
Approvals in Scotland
Scottish householder rules mean many Perth jobs that change the outside of a house need a planning application; we confirm the position before quoting.
Scotland's building standards cover changes to external wall construction; we check whether your job in Perth needs a warrant.
External or internal — which is better?
External insulation keeps the wall warm, reduces cold bridging at floors and party walls, renews the outside, and doesn't shrink rooms — but it changes the look and needs scaffolding. Internal insulation keeps the façade unchanged and can be done room by room, but loses 50–100mm of floor space per wall and needs careful detailing to avoid condensation at joists and corners.
Solid wall insulation prices in Perth
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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.
What happens next
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.
Solid wall insulation in Perth: questions
Can I get a grant for solid wall insulation?
Some schemes cover it for eligible households — for example ECO4 until 31 December 2026, Home Energy Scotland's grant and loan, Wales' Warm Homes Nest and NI's Affordable Warmth Scheme. Each has its own eligibility and installer rules; see our grants guide.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Perth?
Yes — we survey and quote solid wall insulation in Perth (PH1) and nearby Blairgowrie, Crieff and Glenrothes, with a fixed written price before any work starts.