Monocouche render · South Glamorgan
Monocouche render in Barry
Need monocouche render in Barry? Tell us about the property and we'll arrange a free survey and a written quote. Extensions and new blockwork in Barry are where monocouche makes most sense.
- Free survey in CF63 and nearby
- Guide price from £54 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in Barry
Postcode, service and a phone number is all we need.
What's included
- Through-coloured, with a scraped texture
- Beads and movement joints control cracking
- Applied in one or two passes, often by spray machine
- Good for new blockwork and extensions

What we look for in Barry
We cover Barry and nearby Penarth, Cardiff and Caerphilly. It's roughly 7 miles from Barry to Cardiff, the largest town in South Glamorgan. 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.
For Barry homeowners matching a new extension to an existing rendered house, we compare monocouche and silicone samples first.
- Postcode district
- CF63
- County or area
- South Glamorgan
- Nation
- Wales
- Nearby
- Penarth, Cardiff, Caerphilly, Pontypridd
Planning and building control in Wales
Householder rules in Wales are similar to England's: in Barry, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
Building control in Wales applies to most insulation and re-rendering jobs of this size; the quote states who submits the notice.
Can monocouche go over insulation?
No — insulation systems use a mesh-reinforced base coat and a thin-coat finish instead. If you want insulation as well as a new finish, see insulated render.
Monocouche render prices in Barry
| Item | Guide price | Notes |
|---|---|---|
| Monocouche on blockwork | £54–£84 per m²inc VAT | Excluding scaffold |
| Single-storey extension | £2,395–£4,195inc VAT | Typical |
| Beads and movement joints | Included |
Confirmed by a fixed written quote after survey. Prices include VAT at 20%.
From enquiry to finished wall
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Monocouche render in Barry: questions
Is monocouche waterproof?
It's water-resistant and sheds rain, while still allowing some vapour through.
How long does monocouche last?
Typically 20 years or more on a suitable wall, depending on exposure and detailing.
Monocouche or silicone for an extension?
Both work on new blockwork. Silicone over a base coat costs a little more but tends to stay cleaner.
Do you cover Barry?
Yes — we survey and quote monocouche render in Barry (CF63) and nearby Penarth, Cardiff and Caerphilly, with a fixed written price before any work starts.