Derry · County Londonderry
Lintel replacement in Derry
Lintels over existing windows and doors in Derry 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
- BT48
- Population
- about 84,000
- Area
- County Londonderry
- Pricing region
- Northern Ireland
Is County Londonderry prone to ground movement?
With roughly 84,000 people, Derry spans postcode districts BT48 in County Londonderry. Nearby, we also cover Strabane (14 miles) and Limavady (15 miles).
Most of County Londonderry 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. Housing stock in County Londonderry: Georgian and Victorian houses in Derry, brick terraces and post-war estates.
Lintel replacement prices in Derry
Guide prices below are for homes in Derry, on Northern Ireland rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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
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
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
What happens during lintel replacement, step by step?
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.
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.
What to look for before calling about lintel replacement
- Soft, crumbly timber visible behind the brick face over a bay
- Damp patches on the inside wall just above a window
- Rust stains or flaking steel showing above the frame
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 Derry
How much should I budget for lintel replacement in Derry?
Guide prices for lintel replacement in Derry 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 Derry?
We do. Derry and the surrounding area are covered, including nearby Strabane and Limavady. A free initial assessment from your photos is the first step.
Why do houses in County Londonderry crack?
County Londonderry has basalt, older hard rock and glacial deposits, with soft river ground along the Foyle and Bann. Only an investigation can say why a particular building has moved.
How long does it take to replace a lintel?
Most single lintels are replaced in one to two days. The props stay in until the mortar has gained enough strength, and wide bays or openings with both inner and outer lintels can take longer. The window can usually be used again once the supports come out.
Can a lintel be replaced without removing the window?
Often yes. With the wall propped or needled, the old lintel can usually be cut out above the frame. If the frame has been carrying load or the lintel sits tight on it, the window may need removing and refitting, which we include in the quote.
Related work in Derry
- Bay window subsidence repairs
- Concrete repairs
- Resin injection ground stabilisation
- Extension pulling away repairs
- Wall tie replacement
Lintel replacement near Derry
Have several failed lintels on one Derry property? We will price each opening individually so you can plan the work in stages.