External rendering is applying a protective, weather-resistant coating to the outside walls of a house, using sand and cement, monocouche or thin-coat silicone render, to give a smooth or textured finish that protects the masonry and improves appearance.
Homes across County Down vary a great deal, so we price external rendering only after seeing the property. Our coverage takes in Bangor, County Down, Castlereagh, Newtownards and Newry and the surrounding districts. As a guide, expect £6,000–£14,000 including VAT in Northern Ireland; the final figure depends on size, materials and access. Any permissions are checked against the rules for Northern Ireland before we quote.
- Guide price
- £6,000–£14,000 inc VAT
- Time on site
- 1–3 weeks on site, depending on weather
- Planning rules
- Northern Ireland
- Price level
- About 14% below the national guide
- Towns listed
- 5
- Survey
- Free, with a written quote
External rendering prices in County Down
Use the table to gauge the cost of external rendering in County Down before we visit. Figures include VAT and are scaled for Northern Ireland, coming out about 14% below the national guide, which gives £6,000–£14,000 overall. After a free survey, you receive a fixed written price.
| Type of job | What it usually involves | Guide in County Down |
|---|---|---|
| Front elevation or small terrace | One elevation or a small terraced house, including scaffolding and preparation. | £2,600–£6,000 |
| Typical semi-detached | All rendered walls of a 3-bed semi in monocouche or silicone, with scaffolding. | £6,000–£14,000 |
| Detached or full strip and re-render | Larger houses, or homes needing old render removed and walls repaired first. | £13,000–£26,000 |
What moves the price up or down:
- Wall area to be rendered and the height of the house
- Render system: sand and cement, monocouche or silicone
- Removing old render or pebbledash and repairing the walls
- Scaffolding, access and protection of neighbouring property
What’s included?
- Survey of walls, existing render, cracks and damp-proof course
- Removal of loose or failed render and pebbledash where needed
- Windows, doors and surfaces masked and protected
- Beads at corners, edges and above the damp-proof course
- Mesh reinforcement and base coats to suit the chosen system
- Making good around pipes, vents and fixings, and a site clean-up
Housing across County Down
County Down takes in suburbs of Belfast, Bangor and Holywood with Victorian and Edwardian villas, and Newry, Downpatrick and Banbridge with older town centres and newer estates. Mourne granite appears in buildings around the mountains, and detached rural homes and bungalows are common across the county, often rendered or pebbledashed.
Villas and semis suit kitchen extensions, loft conversions and garden landscaping. Rural detached homes commonly take extensions and driveways, and rendered houses often need re-rendering, roofline renewal and window replacement.
Coastal areas such as the Ards Peninsula face salt and wind, and the Mournes bring heavier rain and colder conditions.
Planning and building rules in County Down
Planning law differs across the UK. For a home in County Down, it is the Northern Ireland rules below that count, and we check them with the council ahead of any quote.
In Northern Ireland, re-rendering is usually treated as repair, but conservation areas and listed buildings are controlled.
Significant re-cladding or external insulation should be checked with building control under the Building Regulations (Northern Ireland).
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
The four stages
Survey and measure
Book a visit and we'll come to you. The survey covers measurements, the state of what's there now and any obvious constraints, so the price that follows is based on your actual home, not an average.
Quote in writing
The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.
Booking the work
With the quote agreed, we book the work in and handle preparation: permissions where needed, building control notifications, material orders and access arrangements for your County Down property.
The work itself
On site, the agreed plan is followed and any change is put in writing first. At completion we do a final clean, go through the snagging list with you and leave you with the relevant documents.
How we work
Questions about external rendering in County Down
How much does it cost to render a house?
Rendering a typical 3-bed semi costs £6,000–£14,000, including scaffolding and preparation. As a guide, allow around £60–£120 per square metre of wall plus fixed costs for scaffolding and set-up. Sand and cement is the lowest-cost system, while silicone thin-coat costs more but needs no painting. Removing old render or pebbledash first adds noticeably to the price. We confirm a fixed figure after the survey.
How do I look after silicone or monocouche render?
Through-coloured render needs little upkeep. Check it once a year for cracks or damage, especially around windows and pipes, and keep gutters clear so water does not run down the walls. If green algae appears on shaded walls, a specialist render cleaner applied with a soft brush or low-pressure wash removes it. Avoid high-pressure jet washing, which can damage the surface.
Is the price fixed?
Yes, for the specification we agree. Your written quote sets out exactly what is included at a fixed price. It only changes if you ask for something different, or if a problem the survey could not reasonably reveal later needs extra work. In either case we explain the change and confirm it in writing before going ahead.
What time of year should rendering be done?
Render needs mild, dry conditions to cure properly, so spring to early autumn is ideal. Most render systems should not be applied when frost is likely, in heavy rain or in strong direct sun, which can dry it too quickly and cause cracking. We plan the programme around the forecast and may pause work if the weather turns, which protects the finish.
What happens at the survey?
We visit your home at a time that suits you, look at the area involved, take measurements and check access, condition and any services that might be affected. We talk through what you want from external rendering, explain the options and answer questions. There is no charge and no obligation; afterwards we send a written quote.
Towns in County Down
These are the towns in County Down where you can book a free survey for external rendering. Each has its own page with guide prices and coverage details.