Blackburn · Lancashire
Lintel replacement in Blackburn
For a failed lintel in Blackburn, the new one needs the right length, the right bearing and, in cavity walls, a tray to carry water out. Those details are what make the repair last, and they are set out in our quote.
Guide price from£720per opening inc VAT

- Postcodes
- BB1, BB2
- Population
- about 150,000
- Area
- Lancashire
- Pricing region
- North West
What should you know about the ground under Blackburn?
Postcode districts BB1, BB2 cover Blackburn, a Lancashire town of about 150,000 people. Neighbouring towns we cover: Darwen (4 miles), Accrington (5 miles) and Chorley (9 miles).
Clay soils are found in parts of Lancashire. Parts of Lancashire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Across Lancashire, most homes are stone and brick mill terraces, seaside villas in Blackpool and Lytham, and inter-war and post-war semis.
Symptoms that point to lintel replacement
- Rust stains or flaking steel showing above the frame
- Soft, crumbly timber visible behind the brick face over a bay
- A diagonal crack climbing away from a window head
Guide prices for lintel replacement in Blackburn
These are guide prices for Blackburn, using North West rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £720 – £2,400 | per opening |
| Wide or bay openingest. | £1,900 – £4,300 | per opening |
| Making good inside and outest. | £145 – £575 | per opening |
Methods for lintel replacement
Inner and outer lintel replacement
Solid walls and some cavity walls carry separate lintels on the inside and outside faces. Where both have failed, each is replaced in turn, keeping the wall supported throughout. Internal plaster and reveals are then made good and redecorated where included.
Best for: Older solid walls with rotten timber across the inner face
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
From first photo to finished repair
Specify the replacement
We confirm the lintel type, length and bearing needed. For wide openings, bays or walls with unusual loads, an engineer may specify it, and where the repair needs an engineer’s design or sign-off we can arrange one.
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 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 England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Frequently asked questions
How much will lintel replacement cost in Blackburn?
Guide prices for lintel replacement in Blackburn start from about £720 per opening, including VAT, on North West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Blackburn?
We do. Blackburn and the surrounding area are covered, including nearby Darwen and Accrington. A free initial assessment from your photos is the first step.
Is the ground in Lancashire prone to subsidence?
Lancashire is mostly glacial till over sandstone and mudstone, with the Burnley and Accrington coalfield in the east and soft coastal and estuarine ground on the Fylde. Old mill and mine sites leave made ground in many towns. 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.
Other structural repairs in Blackburn
- Underpinning
- Boundary and garden wall repairs
- Mining subsidence repairs
- Subsidence insurance claim repairs
- Resin injection ground stabilisation
Lintel replacement near Blackburn
Have several failed lintels on one Blackburn property? We will price each opening individually so you can plan the work in stages.