Structural repairs and underpinning in Brighton

Cracked walls, failing lintels and subsidence put right by a family-run Brighton builder, working to your structural engineer’s design.

Getting the structure right first

County Structures carries out structural repairs in Brighton and Hove, such as underpinning, crack stitching, wall tie replacement and new lintels. We’re a small family-run firm, and we’ve been in the building trade for more than 35 years.

Grant leads each job himself, so the person who looks at your cracks is the person running the repair. We work with the same structural engineers again and again, and we build to their design.

Signs your house may need structural work

Some cracking is normal. Houses move a little with the seasons, and fine cracks in plaster are rarely a worry. Get a proper look if you notice any of these:

  • Stepped or diagonal cracks in brickwork, especially if they’re getting wider
  • Cracks above windows and doors, often a sign of a failing lintel
  • Horizontal cracks in the mortar every few courses on a cavity wall
  • A wall that bows or bulges outwards
  • Gaps opening up where walls meet floors, ceilings or the roof

A crack wider than about 5mm, or one that keeps growing, needs checking soon. Grant will tell you honestly if yours needs a visit.

Our structural repair services

Steel Beams & RSJs

Knocking two rooms into one, or opening up the back of the house? We fit steel beams to an engineer’s calculations, prop everything safely and plaster and make good afterwards.

Crack Stitching

Helibar crack stitching ties cracked brickwork back together with stainless steel bars hidden in the mortar joints. It usually costs far less than taking the wall down and rebuilding it.

Wall Tie Replacement

Rusting wall ties can crack and bulge the outer skin of a cavity wall. We check the old ties, fit new stainless steel ones and repair the damage they’ve caused.

Subsidence and underpinning

Subsidence happens when the ground under a foundation shrinks, washes away or gives way. Common causes are leaking drains, nearby trees and shallow Victorian footings. The cause has to be fixed first, or the new work won’t last.

Underpinning then takes the foundation down to firmer ground. We dig and pour it one bay at a time, so the wall is never left without support. The engineer sets the depth, the order of the bays and the concrete mix.

Underpinning needs building regulations approval. If you dig within 3 metres of a neighbour’s building and deeper than its foundations, the Party Wall Act applies too, and your neighbour must get at least one month’s notice.

Lintels, bowing walls and chimney breasts

Lintels. Plenty of Victorian and Edwardian houses still have timber lintels hidden behind the brickwork, and these rot. Early steel ones rust and split the bricks around them. We prop the opening, take the old lintel out and fit a new steel or concrete one.
Bowing walls. A bowing wall has usually lost its grip on the floors or roof. We fit lateral restraint straps or ties to pull it back into the structure. If it has moved too far, that section is taken down and rebuilt.
Chimney breast removal. The chimney left above must be supported, usually on a steel beam, and building control must approve it. In a terrace the breast normally sits on the party wall, so your neighbour needs notice under the Party Wall Act.

Cloakroom basin against an exposed brick wall

Worried about a crack?
Send Grant a photo on 07885 325954 or call the office on 01273 950800.

How a structural repair works with us

1. Call or send photos

Ring Grant on 07885 325954 or the office on 01273 950800. Photos of the cracks help us judge how soon we should come out.

2. Free site visit

We look at the problem, check what the walls are built from and tell you straight if you need a structural engineer.

3. Design and written quote

Once the cause is clear and any design is done, you get a written price. We’ll tell you if party wall notices are needed.

4. Repair and sign-off

We prop, repair and make good. Building control inspect the work and issue a completion certificate, which you’ll want when you sell.

Pair of new white rendered houses

Why Brighton houses crack

Much of it comes down to how the houses were built. Many older Brighton homes have bungaroosh walls, a local mix of flint, broken brick and lime. It stands up well behind sound render. Leave it soaking for years, though, and the lime washes out and the wall can crumble.

Flint and bungaroosh often need a different repair from plain brick, so we find out what a wall is made of before we cut into it. Hard cement patches can trap damp in old lime walls and make things worse.

Near the seafront, salt air and wind-driven rain wear walls and wall ties faster. We choose repair materials with that in mind.

What structural repairs cost

Every job is different, so we can’t give a real price without seeing it. As a rough guide, published figures for the South East put crack stitching at about £60 to £120 per bar, or from around £800 for a typical crack. Wall tie replacement on a typical house is often quoted at roughly £1,200 to £2,600, and a new lintel from around £600 per opening.

Underpinning and steel beams depend too much on the engineer’s design and access for a sensible guide. Engineer’s fees and building control charges are extra. After a free site visit we give you a written quote.

Structural repair questions

For a single lintel or a small crack, often not. For subsidence, bowing walls, underpinning or removing a load-bearing wall, yes, because building control will want calculations. We’re builders, and we build to the engineer’s design. If you don’t have one, we can put you in touch with engineers we’ve used for years.

Properly designed, signed-off repairs usually help a sale. Buyers’ surveyors and lenders want to see the engineer’s report and the building control completion certificate, so keep both with your house papers.

Yes. We’ve converted an 1850s listed building in Brighton into four apartments, so we’re used to treating old fabric with care. Structural work to a listed building usually needs listed building consent from Brighton & Hove City Council first.

Structural repairs across Brighton and Hove

We carry out structural repairs all over the city, including Kemptown, Hanover, Preston Park, Seven Dials, Fiveways, Patcham, Withdean, Rottingdean, Saltdean and Portslade, as well as Shoreham and Lewes. Our office is at Stanford Gate, South Road, Brighton BN1 6SB. Call Grant on 07885 325954 or the office on 01273 950800.

Other services from County Structures

Steel Beams & RSJs · Crack Stitching · Wall Tie Replacement · Brickwork · Repointing · Design and Build

Talk to Brighton builders with 35+ years in the trade

Call Grant on 07885 325954 or the office on 01273 950800. We will come out, look at the job and give you a free, no-obligation quote.

What our customers say

Get a free quote

Tell us a little about your project and we will call you back. If you have drawings or photos, mention it and we can arrange a site visit.

County Structures Ltd
Stanford Gate
2nd Floor, South Road
Brighton
BN1 6SB

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