Solid wall insulation · West Sussex
Solid wall insulation in East Grinstead
We quote solid wall insulation for homes in East Grinstead (RH19) and nearby Horley and Crawley, with guide prices online and a free survey to fix the price. For solid-walled homes in East Grinstead, we check wall thickness and age first to confirm there's no cavity to fill.
- Free survey in RH19 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in East Grinstead
Postcode, service and a phone number is all we need.
Part of every quote
- External insulation keeps room sizes and treats cold bridges well
- Both can be done in stages, elevation by elevation or room by room
- Breathable options for stone and lime-mortared walls
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
Homes and walls in East Grinstead
As well as East Grinstead itself, we quote in Horley, Crawley and Crowborough. East Grinstead is about 8 miles from Crawley. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Exposure to wind-driven rain varies across West Sussex: 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.
On solid-walled houses in East Grinstead, the gable or the most weather-exposed wall is often the place to start.
- Postcode district
- RH19
- County or area
- West Sussex
- Nation
- England
- Nearby
- Horley, Crawley, Crowborough, Haywards Heath
Approvals in England
Planning in East Grinstead follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
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 East Grinstead
| 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 East Grinstead: questions
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.
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.
Do you cover East Grinstead?
Yes — we survey and quote solid wall insulation in East Grinstead (RH19) and nearby Horley, Crawley and Crowborough, with a fixed written price before any work starts.