Redruth, Cornwall
External Wall Insulation in Redruth
EWI systems that insulate solid walls externally and finish them in a warranted render topcoat.
If you are weighing up external wall insulation in Redruth, the starting point is what your walls are actually built from.
Most of what we see around Redruth reflects the wider Cornwall pattern — granite and cob cottages, slate-hung walls and exposed coastal housing, and driving-rain penetration and salt damage on exposed elevations.
Redruth sits in a part of the UK that gets severe driving rain and salt-laden coastal exposure — worth factoring into any render decision. Exposure here is category-defining — dashed and roughcast finishes genuinely outperform smooth render on west-facing coastal walls.
When external wall insulation is the right call. Choose EWI on solid-wall, no-fines or non-traditional construction where you want a genuine thermal upgrade rather than just a new finish.
Guide price in Redruth
| Guide price | £135–£210 per m² |
|---|---|
| Applied thickness | 50-150mm insulation plus render system |
| Guarantee | 25 years |
Indicative only. The guide-price tool gives a range for your property; the survey gives the fixed price.
What the job includes
- 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
We will survey the property, tell you what the walls actually need, and put it in writing with a fixed price.
Also covering near Redruth
External Wall Insulation in Redruth
Tell us about the property and we will call you back to arrange a survey.
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 Redruth
What areas do you cover?
We work UK-wide, with teams across England, Scotland, Wales and Northern Ireland. If we are not the right firm for your location we will tell you rather than waste your time.
How much does external wall insulation save?
On a typical uninsulated solid-wall semi it commonly cuts wall heat loss substantially and makes the biggest single difference to comfort. Actual savings depend on the existing construction, heating system and how you use the house.
Do I need planning permission for EWI?
Often not on a standard house, but you will if it is listed, in a conservation area, or if it alters the appearance significantly. We advise before starting.
How much does rendering cost?
It is priced by the square metre and depends on the system, the condition of the walls and access. Our guide-price tool gives an indicative range in about a minute, and the survey turns that into a fixed written quote.
Do you offer a guarantee?
Yes. Every job carries our workmanship guarantee, and where a full manufacturer-specified system is installed you also get the system warranty on top.
Free survey in Redruth
We will confirm whether external wall insulation suits your walls before quoting a price.