Kingston upon Thames · Greater London
Lintel replacement in Kingston upon Thames
Bay windows on older houses around Kingston upon Thames 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£940per opening inc VAT

- Postcodes
- KT1, KT2, KT3, KT4, KT5
- Population
- about 170,000
- Area
- Greater London
- Pricing region
- London
What is the ground like in Greater London?
We cover the whole of Kingston upon Thames, including postcode districts KT1, KT2, KT3, KT4, KT5; about 170,000 people live in the borough. Nearby places we cover include East Molesey (3 miles), Ewell (3 miles) and Esher (4 miles).
Shrinkable clay is widespread in Greater London. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
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
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
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.
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.
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
- 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
Lintel replacement prices in Kingston upon Thames
For Kingston upon Thames we use London rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £940 – £3,100 | per opening |
| Wide or bay openingest. | £2,500 – £5,600 | per opening |
| Making good inside and outest. | £190 – £750 | per opening |
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.
Questions about lintel replacement in Kingston upon Thames
What is the price of lintel replacement in Kingston upon Thames?
Guide prices for lintel replacement in Kingston upon Thames start from about £940 per opening, including VAT, on London 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 Kingston upon Thames?
We do. Kingston upon Thames and the surrounding area are covered, including nearby East Molesey and Ewell. A free initial assessment from your photos is the first step.
Does the ground around Kingston upon Thames cause cracking?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden 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.
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.
More repairs we carry out in Kingston upon Thames
Lintel replacement near Kingston upon Thames
If rust is showing above the windows of your Kingston upon Thames home, photograph it close up and we will tell you whether replacement is due.