Lisburn · County Antrim
Lintel replacement in Lisburn
Lintels over existing windows and doors in Lisburn 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
- BT17, BT27, BT28
- Population
- about 78,000
- Area
- County Antrim
- Pricing region
- Northern Ireland
Why does the ground in County Antrim matter for lintel replacement?
Postcode districts BT17, BT27, BT28 cover Lisburn, a County Antrim town of about 78,000 people. We also take enquiries from nearby Belfast (7 miles), Newtownabbey (11 miles) and Craigavon (15 miles).
Shrinkable clay is less common in County Antrim than in south-east England. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. What you mostly find across County Antrim: red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
What to look for before calling about lintel replacement
- Window or door frames that have started to bind or distort
- Damp patches on the inside wall just above a window
- Rust stains or flaking steel showing above the frame
Lintel replacement prices in Lisburn
The ranges below reflect typical Northern Ireland costs for lintel replacement, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
How we usually approach 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
Like-for-like replacement
The failed lintel comes out and one of suitable type and size is bedded on mortar with adequate bearing at each end. Bricks above are relaid to match the original bond and the joints are pointed to blend with the surrounding wall.
Best for: Standard windows and doors with a single failed lintel
What happens during lintel replacement, step by step?
Support the wall
Props or needles are set so the brickwork above carries no load on the old lintel. Windows are protected or temporarily removed where the work demands it, and the room inside is sheeted against dust.
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.
Questions about lintel replacement in Lisburn
How much should I budget for lintel replacement in Lisburn?
Guide prices for lintel replacement in Lisburn 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 Lisburn?
Yes. We take enquiries from across Lisburn, including BT17, BT27, BT28, and from nearby places such as Belfast and Newtownabbey. Send photos for a free initial view and we will tell you what happens next.
Why do houses in County Antrim crack?
County Antrim is largely basalt over chalk, with soft estuarine 'sleech' along Belfast Lough that is notorious for settlement. Historic salt mining is recorded near Carrickfergus. Only an investigation can say why a particular building has moved.
Do I need building regulations approval to replace a lintel?
In England and Wales, replacing a lintel is structural work and building control will usually need to approve it. Rules differ in Scotland and Northern Ireland. We deal with building control where the work needs it, and include the cost in the quote.
How do I know if a lintel has failed?
The most common sign is a diagonal or stepped crack running up from the top corner of a window or door. Others include a dip in the brickwork above, rust or rot visible at the lintel edge, and windows that start to stick. A crack alone can have other causes, so it is worth checking.
Related work in Lisburn
- Bowing wall repairs
- Roof structure repairs
- Structural crack repairs
- Floor joist repairs
- Brick arch repairs
Lintel replacement near Lisburn
Our quote tool shows guide prices for a Lisburn lintel replacement; add photos and we can confirm the likely opening size and type.