External Wall Insulation (EWI) is two jobs in one — a thick insulation layer fixed to your outside walls, finished with a through-coloured render. For solid-wall properties in Ilkley, it's the single biggest upgrade you can make.
Why EWI in Ilkley?
No loss of internal floor space, unlike internal wall insulation.
Local context: Ilkley, West Yorkshire
Premium Victorian stone villas and mature detached homes — finish quality and colour-matching matter as much as performance. Moor-edge exposure with cold, wet winters — flexible silicone is the modern default. We cover the full West Yorkshire area from LS29 outwards, including Ben Rhydding, Burley-in-Wharfedale, Addingham, Menston, Riddlesden and the wider postcodes (LS29). Most Ilkley jobs are surveyed within 48 hours — we know the streets, parking constraints around landmarks like Ilkley Moor, and the typical substrates we'll find on the wall.
Benefits
- Refurbishes tired solid-wall properties to modern standards.
- Long-life system when detailed properly.
- Major reduction in heating bills.
- Eliminates cold bridging and most internal condensation.
- Brand-new render façade included.
- Significant EPC uplift.
Local considerations
- Reveals, sills and drip beads are where EWI fails. We detail these properly; many cheap installers don't.
- Plan for moved rainwater goods, soil stacks and meter boxes — the project is more than just 'boards and render'.
- EWI on a damp wall just traps the damp. Cure the damp problem first.
- EWI changes the external footprint of the building by 100–200mm — windows, sills, rainwater goods and roof overhang all need designing in.
- Get the breathability right — for older solid-wall properties in Ilkley, mineral wool with a silicone topcoat is usually safer than EPS.
Our process in Ilkley
- Survey, design, and itemised quote.
- Scaffold + project plan.
- Strip rainwater goods; prep substrate.
- Fix boards (typically 90–150mm depending on target U-value).
- Detail all reveals, drip beads, expansion joints.
- Base coat + mesh.
- Through-coloured topcoat + handover.
Areas we cover from Ilkley
We work across Ilkley (LS29) and the surrounding areas:
Frequently asked questions
Will EWI affect my windows?
Window reveals will need re-detailing. We design new reveal beads and trims into the quote — it's not a hidden extra.
Are there grants available?
Grant schemes change. Ask on enquiry — if there's an active scheme that fits your Ilkley property, we'll point you to it.
How much can EWI save on bills in Ilkley?
Typically 25–35% off heating demand for solid-wall properties. The exact figure depends on current insulation, heating system, and how the house is used.
What thickness of insulation do you use?
Most Ilkley projects sit between 90mm and 150mm, depending on the U-value target and existing detailing. We size it on survey.
Does EWI need planning permission in Ilkley?
Usually no for like-for-like exteriors on standard housing, but conservation areas and listed properties need checking. We'll advise on survey.
Can EWI fix damp?
EWI eliminates cold-bridging condensation — the most common cause of 'damp' patches on solid walls. It doesn't fix rising or penetrating damp, which need addressing separately.
Request a written, itemised quote. No pressure, no upsell — just clear pricing and clear scope.
Considering EWI in Ilkley? Talk to installers who actually understand the detail work. Free survey on request.