Solid wall insulation · Orkney, Shetland and the Western Isles
Solid wall insulation in Lerwick
Need solid wall insulation in Lerwick? Tell us about the property and we'll arrange a free survey and a written quote. For Lerwick homeowners weighing external against internal insulation, the survey sets out both with prices.
- Free survey in ZE1
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Lerwick
Postcode, service and a phone number is all we need.
What the job covers
- External insulation keeps room sizes and treats cold bridges well
- Breathable options for stone and lime-mortared walls
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
- Both can be done in stages, elevation by elevation or room by room

Homes and walls in Lerwick
We cover Lerwick and the wider Orkney, Shetland and the Western Isles; island and remote addresses are surveyed by arrangement. The Highlands and Islands have many exposed stone and harled homes, timber-framed houses and scattered rural properties.
Parts of Orkney, Shetland and the Western Isles fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
For solid-walled homes in Lerwick, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- ZE1
- County or area
- Orkney, Shetland and the Western Isles
- Nation
- Scotland
Approvals in Scotland
For Lerwick properties, flats and tenements need planning permission for external insulation, and a noticeable change of finish on a house often does too under Scottish rules.
Scotland's building standards cover changes to external wall construction; we check whether your job in Lerwick needs a warrant.
How can I tell if my walls are solid?
Measure the wall thickness at a window or door: about 225mm (9 inches) of brick usually means solid, while 260mm or more often means a cavity. On exposed brick, a pattern with bricks laid end-on (headers) every few courses points to solid construction. Stone walls are usually solid regardless of thickness. Age is a strong clue too — most homes built before the 1920s are solid-walled.
Solid wall insulation prices in Lerwick
| 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 Lerwick: 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.
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
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 Lerwick?
Yes — we survey and quote solid wall insulation in Lerwick (ZE1); island and remote addresses are surveyed by arrangement, with a fixed written price before any work starts.