Silicone render · Northern Ireland
Silicone render in County Down
Quotes for silicone render in County Down set out the system, detailing, access and VAT position in writing. Silicone suits most rendering jobs in County Down, either on its own or over insulation.
- Free survey and fixed written price
- Guide price from £66 per m² + scaffold, inc VAT
- Planning and building control checked for Northern Ireland
Free survey in County Down
Tell us the postcode and what you need.
Included as standard
- Fine, even grain from about 1–2mm
- Vapour-open, so walls can still breathe
- Used as the finish on most EWI systems
- Water-repellent surface that dries quickly after rain
- Can also go straight onto prepared masonry

County Down: walls, weather and approvals
Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Exposure to wind-driven rain varies across County Down: 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.
If you're re-rendering in County Down, we'll show you what adding insulation under the silicone would cost at the same time.
- Nation
- Northern Ireland
- Region
- Northern Ireland
- Towns covered
- Bangor (County Down), Castlereagh, Newtownards, Newry, Banbridge, Holywood, Downpatrick
- Guide price
- From £66 per m² + scaffold · inc VAT
Permissions in Northern Ireland
In Northern Ireland, permitted development is set by the Planning (General Permitted Development) Order (NI) 2015. Changing the external appearance of a house may need permission, and conservation areas, flats, commercial buildings and listed buildings need planning permission or listed building consent. Check with your council's planning office.
Insulating external walls is building work under the Building Regulations (Northern Ireland) 2012, handled by council building control, with Technical Booklet F1 covering conservation of fuel and power in dwellings.
Is silicone render maintenance-free?
Not quite. It stays cleaner than most renders because water runs off and dries quickly, but north-facing or tree-shaded walls can still gather algae. A gentle biocide wash every few years keeps it looking new. Pressure washing is avoided because it can damage the surface.
Silicone render prices in County Down
| 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%.
How it works
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 County Down: questions
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.
Can I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
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.
Do you cover all of County Down?
Yes. We survey and quote silicone render across County Down, including Bangor (County Down), Castlereagh, Newtownards, Newry, Banbridge.
Do I need planning permission in Northern Ireland?
In Northern Ireland, permitted development is set by the Planning (General Permitted Development) Order (NI) 2015. We check your address before quoting.