Lintel replacement in Sevenoaks

Postcodes: TN13
Population: about 30,000
Area: Kent
Pricing region: South East

What should you know about the ground under Sevenoaks?

Sevenoaks (TN13) has around 30,000 residents and sits in Kent. Neighbouring towns we cover: Tonbridge (6 miles), Swanley (9 miles) and Bromley (10 miles).

Much of Kent sits on clay that shrinks in dry summers and swells in wet winters. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Across Kent, most homes are Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.

Is it time for lintel replacement? Common signs

Damp patches on the inside wall just above a window
A diagonal crack climbing away from a window head
Window or door frames that have started to bind or distort

What should you budget for lintel replacement in Sevenoaks?

These are guide prices for Sevenoaks, using South East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.

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

Repair options we may recommend

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

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

What to expect when we carry out lintel replacement

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.

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.

Your lintel replacement questions

How much should I budget for lintel replacement in Sevenoaks?

Guide prices for lintel replacement in Sevenoaks 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 Sevenoaks?

We do. Sevenoaks and the surrounding area are covered, including nearby Tonbridge and Swanley. A free initial assessment from your photos is the first step.

Why do houses in Kent crack?

North Kent sits on London Clay, central Kent on Gault and Weald Clays and the Downs on chalk, so shrinkable clay is widespread. East Kent around Deal and Dover had a small deep coalfield, worked until the late 1980s. Only an investigation can say why a particular building has moved.

What does needling a wall mean?

Needling means passing short steel members through holes cut in the wall just above the opening and supporting them on props on both sides. The needles take the weight of the wall above, so the old lintel can be removed safely without any brickwork dropping.

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.

Related work in Sevenoaks

Lintel replacement near Sevenoaks

For a Sevenoaks lintel, the price is fixed in writing once the repair is specified, with building control included where the work needs it.