Marlow · Buckinghamshire
Lintel replacement in Marlow
Lintels over existing windows and doors in Marlow 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£840per opening inc VAT

- Postcodes
- SL7
- Population
- about 18,000
- Area
- Buckinghamshire
- Pricing region
- South East
What is the ground like in Buckinghamshire?
Marlow is in Buckinghamshire and takes in postcode districts SL7. About 18,000 people live there. Neighbouring towns we cover: Maidenhead (4 miles), High Wycombe (4 miles) and Slough (9 miles).
Much of Buckinghamshire sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Buckinghamshire: Market-town terraces, 1930s semis in the south, and large late-20th-century estates in Milton Keynes and Aylesbury.
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.
Symptoms that point to lintel replacement
- Soft, crumbly timber visible behind the brick face over a bay
- Brickwork above an opening visibly dipping in the middle
- Window or door frames that have started to bind or distort
Guide prices for lintel replacement in Marlow
Prices in Marlow are worked out on South East rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £840 – £2,800 | per opening |
| Wide or bay openingest. | £2,250 – £5,050 | per opening |
| Making good inside and outest. | £170 – £670 | 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
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 should I budget for lintel replacement in Marlow?
Guide prices for lintel replacement in Marlow start from about £840 per opening, including VAT, on South East 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 Marlow?
Yes. We take enquiries from across Marlow, including SL7, and from nearby places such as Maidenhead and High Wycombe. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Buckinghamshire crack?
The Chilterns are chalk with clay-with-flints on the tops, while the Vale of Aylesbury and Milton Keynes sit on Gault, Kimmeridge and Oxford Clays and glacial till. The vale clays are prone to seasonal shrinkage near trees. 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 Marlow
- Extension pulling away repairs
- Bowing wall repairs
- Concrete repairs
- Chimney stack repairs
- Resin injection ground stabilisation
Lintel replacement near Marlow
Have several failed lintels on one Marlow property? We will price each opening individually so you can plan the work in stages.