Lintel replacement in Horsham

Postcodes: RH12
Population: about 51,000
Area: West Sussex
Pricing region: South East

Is West Sussex prone to ground movement?

Horsham is in West Sussex and takes in postcode districts RH12. About 51,000 people live there. Nearby places we cover include Crawley (7 miles), Horley (11 miles) and Haywards Heath (11 miles).

West Sussex is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in West Sussex: Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.

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?

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.
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.

What to look for before calling about lintel replacement

Soft, crumbly timber visible behind the brick face over a bay
Brickwork above an opening visibly dipping in the middle
Rust stains or flaking steel showing above the frame

Lintel replacement prices in Horsham

The ranges below reflect typical South East costs for lintel replacement, including VAT. Scaffold, access and making good can push a job to the top of the range.

Guide prices inc VAT on South East rates. Items marked est. are our estimates.
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

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 Horsham

How much will lintel replacement cost in Horsham?

Guide prices for lintel replacement in Horsham 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 cover Horsham?

We do. Horsham and the surrounding area are covered, including nearby Crawley and Horley. A free initial assessment from your photos is the first step.

Is the ground in West Sussex prone to subsidence?

North West Sussex around Crawley and Horsham sits on Weald Clay, the South Downs are chalk, and the coastal plain has brickearth and gravels. The Weald Clay is prone to shrink-swell movement 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.

How do I know if a lintel has failed?

The most common sign is a diagonal or stepped crack running up from the top corner of a window or door. Others include a dip in the brickwork above, rust or rot visible at the lintel edge, and windows that start to stick. A crack alone can have other causes, so it is worth checking.

Other structural repairs in Horsham

Lintel replacement near Horsham

You will get a no-obligation written quote for each Horsham lintel, splitting out the lintel itself, the propping and the making good.