North West
External Wall Insulation in Cumbria
EWI systems that insulate solid walls externally and finish them in a warranted render topcoat.
If you are weighing up external wall insulation in Cumbria, the starting point is what your walls are actually built from.
The prevailing picture in Cumbria is traditional slate and stone construction, lakeland cottages and exposed rural properties. That means driving rain, saturation and moss growth on north-facing walls comes up more here than almost anywhere else. With the highest rainfall in England, specification matters more in this part of the country than a national price list suggests.
Local factor. With the wettest conditions in england, breathability is not optional — sealing a cumbrian stone wall in cement causes damage within a few winters.
Is external wall insulation right for a Cumbria property?
Choose EWI on solid-wall, no-fines or non-traditional construction where you want a genuine thermal upgrade rather than just a new finish.
That decision gets made at the survey, not on the phone. We will tell you plainly if a different system would serve the building better — including when a cheaper one would.
Guide price and specification
| Guide price | £135–£210 per m² |
|---|---|
| Applied thickness | 50-150mm insulation plus render system |
| Curing / drying | Staged, 7-10 days total |
| Guarantee | 25 years |
| Coverage | All of Cumbria — 10 towns and cities |
Indicative only, excluding scaffold, stripping and repairs. Try the guide-price tool for a range based on your property.
What is included
- EPS, mineral wool and phenolic boards
- 50mm to 150mm thicknesses
- Mechanical and adhesive fixing
- Reinforced basecoat with mesh
- Silicone or acrylic topcoat
- Window and door reveal detailing
- Eaves and verge extensions
- Fire-rated mineral wool options
External Wall Insulation across Cumbria
External Wall Insulation in Cumbria
Tell us about the property and we will call you back to arrange a survey.
Other services in Cumbria
What happens next
Four steps from enquiry to finished wall
Free survey
We visit, test the substrate, measure up and identify what caused any existing failure.
Written quote
An itemised fixed price with the system named, materials specified and scaffold included.
Booked in
An agreed start date, scaffold arranged, and a clear run of days set aside for your job.
Finished and guaranteed
Site cleared, scaffold struck, guarantee documents and system warranty issued.
FAQs
External Wall Insulation in Cumbria — questions
Do I need planning permission to render my house?
Usually not on a standard house, but you will if the property is listed, in a conservation area, or if rendering would significantly change its appearance. We flag it at survey.
Will you need scaffolding?
For anything above single storey, yes — it is safer and produces a better finish than working off ladders or towers. Scaffold is included and itemised in the quote.
How long before I can paint new render?
Through-coloured systems need no painting at all. Sand and cement should cure for around 28 days before masonry paint goes anywhere near it.
Do you take a deposit?
For most domestic jobs we take a deposit to cover materials and scaffold, with the balance on completion. Terms are set out clearly in the written quote.
Can you match my existing render?
Usually, yes. We colour and texture match as closely as we can, though weathered render never matches a fresh batch exactly — we will be honest about how visible a patch will be.
Will EWI make my house look different?
The walls become 70-200mm thicker, so reveals get deeper and the eaves usually need extending. Done properly it looks intentional; done cheaply it looks like a box.
External Wall Insulation quotes across Cumbria
Free survey, honest advice on whether this is the right system, and a fixed written price.