Solid wall insulation · Derbyshire
Solid wall insulation in Derby
We quote solid wall insulation for homes in Derby (DE1) and nearby Belper and Ilkeston, with guide prices online and a free survey to fix the price. On solid-walled houses in Derby, the gable or the most weather-exposed wall is often the place to start.
- Free survey in DE1 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Derby
Postcode, service and a phone number is all we need.
What the job covers
- Internal insulation suits single rooms or where the outside can't change
- Breathable options for stone and lime-mortared walls
- Both can be done in stages, elevation by elevation or room by room
- In England and Wales, Building Regulations apply when more than half of a wall is treated
Homes and walls in Derby
Surveys in Derby also cover the surrounding DE1 district and towns such as Belper and Ilkeston. Housing in the East Midlands includes Victorian terraces in the towns and cities, plenty of inter-war semis and post-war council estates, some of them system-built.
Exposure to wind-driven rain varies across Derbyshire: 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 Derby, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- DE1
- County or area
- Derbyshire
- Nation
- England
- Nearby
- Belper, Ilkeston, Heanor, Ripley
Permissions in England
Before quoting in Derby, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 Derby
| 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.
From enquiry to finished wall
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Solid wall insulation in Derby: questions
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
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.
Do you cover Derby?
Yes — we survey and quote solid wall insulation in Derby (DE1) and nearby Belper, Ilkeston and Heanor, with a fixed written price before any work starts.