Llansamlet, West Glamorgan
External Wall Insulation in Llansamlet
EWI systems that insulate solid walls externally and finish them in a warranted render topcoat.
If you are weighing up external wall insulation in Llansamlet, the starting point is what your walls are actually built from.
West Glamorgan is characterised by Victorian terraces, industrial housing and exposed coastal properties, with driving rain on Gower and Swansea Bay elevations the recurring theme on the properties we survey.
With very high rainfall with strong coastal exposure, specification matters more in this part of the country than a national price list suggests. Swansea is among the wettest cities in the uk, and render specifications that hold up in the midlands are routinely under-specified here.
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 Llansamlet
| 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
If a cheaper specification would do the job, we will say so. If it would not, we will tell you why.
Also covering near Llansamlet
External Wall Insulation in Llansamlet
Tell us about the property and we will call you back to arrange a survey.
Other services in Llansamlet
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 Llansamlet
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.
What time of year is best for rendering?
Spring through autumn is ideal. Render should not be applied in frost or in very hot direct sun, so winter work needs protection and settled conditions.
Can you render over existing render?
Sometimes, if the existing coat is completely sound and well-bonded. We hammer-test it first. Anything hollow has to come off, because covering failure just hides it.
Free survey in Llansamlet
We will confirm whether external wall insulation suits your walls before quoting a price.