Insulated render · South Glamorgan
Insulated render systems in Penarth
From Penarth to Cardiff, we price insulated render after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Two-tone schemes, such as a darker plinth or entrance surround, are an option on houses in Penarth.
- Free survey in CF64 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Penarth
Postcode, service and a phone number is all we need.
Included as standard
- Through-coloured finishes in hundreds of shades
- Combines a new look with lower heat loss
- Contrasting colours for bands, plinths and features
- One system: board, adhesive, fixings, mesh, primer and render
What we look for in Penarth
Surveys in Penarth also cover the surrounding CF64 district and towns such as Cardiff and Barry. Penarth sits around 3 miles from Cardiff. South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across South Glamorgan: 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.
We bring finish samples to Penarth surveys so colours can be judged in daylight against your roof and windows.
- Postcode district
- CF64
- County or area
- South Glamorgan
- Nation
- Wales
- Nearby
- Cardiff, Barry, Caerphilly, Risca
Wales: planning and regulations
Householder rules in Wales are similar to England's: in Penarth, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so building control is involved before work starts.
Is insulated render the same as EWI?
Yes — insulated render is the everyday name for a rendered EWI system. Some people also use it for thin thermal renders containing aerogel or cork, which are applied 20–40mm thick on heritage walls. They insulate far less than board systems, so we treat them as a specialist option.
Insulated render systems prices in Penarth
| Item | Guide price | Notes |
|---|---|---|
| Insulated render (EPS + silicone) | £105–£145 per m²0% VAT | Excluding scaffold |
| Mineral wool insulated render | £125–£170 per m²0% VAT | |
| Contrasting colour features | +£8–£20 per m²0% VAT | Where used |
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.
What happens next
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Insulated render in Penarth: questions
How long does insulated render last?
Typically 25–30 years or more with maintenance; the manufacturer's documentation sets the service life for the specific system.
Will my house look different?
Yes, if it was brick or pebble dash. If you want to keep a brick look, a brick-slip finish over the insulation is an option.
Can insulated render be applied in winter?
Only in suitable weather — typically above 5°C and rising, with no frost or rain during curing. Winter programmes allow for lost days.
Do you cover Penarth?
Yes — we survey and quote insulated render in Penarth (CF64) and nearby Cardiff, Barry and Caerphilly, with a fixed written price before any work starts.