Gerrards Cross · Buckinghamshire
Lintel replacement in Gerrards Cross
Bay windows on older houses around Gerrards Cross often hide a timber lintel behind the face brickwork. When that timber rots, the bay brickwork drops and cracks, and replacing it properly means supporting the wall above throughout the job.
Guide price from£840per opening inc VAT
- Postcodes
- SL9, UB9
- Population
- about 21,000
- Area
- Buckinghamshire
- Pricing region
- South East
Why does the ground in Buckinghamshire matter for lintel replacement?
With roughly 21,000 people, Gerrards Cross spans postcode districts SL9, UB9 in Buckinghamshire. If you are just outside Gerrards Cross, we also cover Rickmansworth (5 miles), Slough (6 miles) and Hillingdon (6 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. Across Buckinghamshire, most homes are 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
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 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
- Brickwork above an opening visibly dipping in the middle
- Rust stains or flaking steel showing above the frame
- A diagonal crack climbing away from a window head
Guide prices for lintel replacement in Gerrards Cross
These are guide prices for Gerrards Cross, using South East 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 | £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
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
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
What is the price of lintel replacement in Gerrards Cross?
Guide prices for lintel replacement in Gerrards Cross 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.
Do you carry out lintel replacement in Gerrards Cross?
Yes. We take enquiries from across Gerrards Cross, including SL9, UB9, and from nearby places such as Rickmansworth and Slough. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Gerrards Cross cause cracking?
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.
More repairs we carry out in Gerrards Cross
- Bowing wall repairs
- Brick arch repairs
- Concrete repairs
- Structural crack repairs
- Boundary and garden wall repairs
Lintel replacement near Gerrards Cross
You will get a no-obligation written quote for each Gerrards Cross lintel, splitting out the lintel itself, the propping and the making good.