Holywood · County Down
Lintel replacement in Holywood
Lintels over existing windows and doors in Holywood homes are replaced one opening at a time, with the wall fully supported. Inside, rooms stay usable, with dust sheeting and making good included where you need it.
Guide price from£660per opening inc VAT

- Postcodes
- BT18
- Population
- about 13,000
- Area
- County Down
- Pricing region
- Northern Ireland
What is the ground like in County Down?
We cover Holywood and its postcode districts BT18, part of County Down, with a population of roughly 13,000. If you are just outside Holywood, we also cover Newtownards (6 miles), Bangor (6 miles) and Downpatrick (22 miles).
Most of County Down is on firmer ground than the clay belts of the south-east. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in County Down: Victorian seaside houses in Bangor and Holywood, brick terraces and post-war estates.
Symptoms that point to lintel replacement
- Soft, crumbly timber visible behind the brick face over a bay
- A diagonal crack climbing away from a window head
- Rust stains or flaking steel showing above the frame
Guide prices for lintel replacement in Holywood
For Holywood we use Northern Ireland rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £660 – £2,200 | per opening |
| Wide or bay openingest. | £1,750 – £3,950 | per opening |
| Making good inside and outest. | £130 – £530 | per opening |
Methods for lintel replacement
Replacement with a cavity tray
A damp-proof membrane is laid over the new lintel with stop ends and weep holes, so water running down the cavity is directed out rather than into the house. Many older lintels were installed without one, which is often why they failed.
Best for: Cavity walls with damp above windows
Propping and needling
Adjustable props carry the wall above while the old lintel comes out. For heavier walls, short steel needles are passed through holes cut above the opening and propped on both sides, taking the load off the lintel completely. The supports stay until the new work has set.
Best for: Openings with heavy walls, upper floors or bay windows above
From first photo to finished repair
Inspect the opening
We look at the crack pattern, the type of lintel and what sits above it. Pictures of both faces of the window, plus any visible lintel edge, help us judge it before visiting.
Remove and replace
Brickwork is carefully taken out above the lintel, the old lintel removed and the new one bedded level on full bearings. A cavity tray goes in where relevant, then the brickwork above is relaid.
Remove supports and make good
Once the mortar has gained strength, props and needles come out and their holes are made good. Pointing, reveals and plaster are finished, and the window is refitted or checked for smooth operation.
Rules for lintel replacement in Northern Ireland
In Northern Ireland, the Building Regulations (Northern Ireland) 2012 apply and the council’s building control service approves structural work such as underpinning; minor like-for-like repairs usually need no approval. The Party Wall Act does not apply in Northern Ireland, so work to shared walls depends on deeds and agreement with neighbours.
Frequently asked questions
How much should I budget for lintel replacement in Holywood?
Guide prices for lintel replacement in Holywood start from about £660 per opening, including VAT, on Northern Ireland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Holywood?
Yes, Holywood is covered, along with postcode districts BT18. We also cover nearby Newtownards and Bangor.
Why do houses in County Down crack?
County Down is mostly drumlin till over older rock and granite in the Mournes, with soft estuarine ground around Belfast Lough and Strangford. Only an investigation can say why a particular building has moved.
Is it safe to live in the house during lintel replacement?
Yes, in almost all cases. The wall is fully supported before anything is removed, and the work is confined to one opening at a time. The affected room is sheeted against dust and kept clear while props are in place.
What is a cavity tray and do I need one?
A cavity tray is a damp-proof membrane above a lintel that catches water running down inside a cavity wall and sends it out through weep holes. If your wall is cavity construction and the original lintel had no tray, fitting one with the new lintel is usually sensible.
Related work in Holywood
- Structural crack repairs
- Boundary and garden wall repairs
- Brick arch repairs
- Subsidence insurance claim repairs
- Resin injection ground stabilisation
Lintel replacement near Holywood
Send photos of the cracked or sagging opening at your Holywood home for a free initial assessment and an honest view on the lintel.