Silicone render · Gwynedd
Silicone render in Caernarfon
Need silicone render in Caernarfon? Tell us about the property and we'll arrange a free survey and a written quote. On tree-shaded or north-facing walls in Caernarfon, silicone's water repellence helps it stay cleaner for longer.
- Free survey in LL55 and nearby
- Guide price from £66 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in Caernarfon
Postcode, service and a phone number is all we need.
Included as standard
- Water-repellent surface that dries quickly after rain
- Vapour-open, so walls can still breathe
- Through-coloured — no painting needed
- Used as the finish on most EWI systems
What we look for in Caernarfon
As well as Caernarfon itself, we quote in Llangefni, Bangor (Gwynedd) and Holyhead. It's roughly 8 miles from Caernarfon to Bangor (Gwynedd), the largest town in Gwynedd. North Wales has many solid stone and slate-built homes, Victorian seaside terraces and post-war council estates.
Parts of Gwynedd fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
If you're re-rendering in Caernarfon, we'll show you what adding insulation under the silicone would cost at the same time.
- Postcode district
- LL55
- County or area
- Gwynedd
- Nation
- Wales
- Nearby
- Llangefni, Bangor (Gwynedd), Holyhead, Llandudno
Permissions in Wales
We check Caernarfon addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
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.
How is silicone render applied?
On masonry, the wall is prepared and any loose material removed. A base coat with glass-fibre mesh is applied over the whole wall to resist cracking, followed by a primer and the silicone finish, trowelled to its grain size. On EWI, the same base coat, primer and finish go over the insulation boards.
Silicone render prices in Caernarfon
| Item | Guide price | Notes |
|---|---|---|
| Silicone render on masonry (with base coat + mesh) | £66–£102 per m²inc VAT | Excluding scaffold |
| Front and side of a semi (≈60 m²) | £3,960–£6,120inc VAT | Plus scaffold |
| As the finish on EWI | Included in EWI rates |
Confirmed by a fixed written quote after survey. Prices include VAT at 20%.
What happens next
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.
Silicone render in Caernarfon: questions
Does silicone render crack?
The mesh-reinforced base coat and the render's flexibility make cracking much less likely than with sand and cement, but structural movement in the wall can still show through.
Can I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
How long does silicone render take to dry?
It's touch-dry within hours but needs dry weather above about 5°C for the first day or two to cure properly.
Do you cover Caernarfon?
Yes — we survey and quote silicone render in Caernarfon (LL55) and nearby Llangefni, Bangor (Gwynedd) and Holyhead, with a fixed written price before any work starts.