Monocouche render · England
Monocouche render in Somerset
Homes and buildings across Somerset — from Bath to Taunton — can get a free survey and written quote for monocouche render. For Somerset homeowners matching a new extension to an existing rendered house, we compare monocouche and silicone samples first.
- Free survey and fixed written price
- Guide price from £54 per m² + scaffold, inc VAT
- Planning and building control checked for England
Free survey in Somerset
Tell us the postcode and what you need.
What's included
- Beads and movement joints control cracking
- Through-coloured, with a scraped texture
- Not the finish used over insulation boards
- Good for new blockwork and extensions
- Lower cost per m² than thin-coat systems on suitable walls

Local considerations in Somerset
The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Somerset: 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.
Extensions and new blockwork in Somerset are where monocouche makes most sense.
- Nation
- England
- Region
- South West
- Towns covered
- Bath, Weston-super-Mare, Taunton, Yeovil, Bridgwater, Frome, Portishead, Burnham-on-Sea…
- Guide price
- From £54 per m² + scaffold · inc VAT
Permissions in England
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. Planning permission is usually needed in conservation areas, National Parks, National Landscapes, the Broads and World Heritage Sites (where cladding a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles isn't permitted development), for flats and maisonettes, for commercial buildings, under an Article 4 direction, or where the look changes noticeably. Listed buildings need listed building consent.
Renovating more than half of a wall's area — insulating it, or stripping and re-rendering it — or more than a quarter of the building's whole external envelope brings in the energy requirements of Part L, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's technically, functionally and economically feasible.
Where is monocouche used?
Monocouche is best on new or sound blockwork and brickwork with consistent suction — extensions, new builds and garden walls. It's applied thicker than thin-coat renders and scraped once firm to reveal the texture.
Monocouche render prices in Somerset
| 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%.
How it works
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.
Monocouche render in Somerset: questions
Does monocouche need painting?
No — it's through-coloured. Cleaning every few years keeps it looking fresh.
Is monocouche waterproof?
It's water-resistant and sheds rain, while still allowing some vapour through.
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 all of Somerset?
Yes. We survey and quote monocouche render across Somerset, including Bath, Weston-super-Mare, Taunton, Yeovil, Bridgwater.
Do I need planning permission in England?
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. We check your address before quoting.