Floor joist repairs in Corby

Postcodes: NN17, NN18
Population: about 68,000
Area: Northamptonshire
Pricing region: East Midlands

What is the ground like in Northamptonshire?

With roughly 68,000 people, Corby spans postcode districts NN17, NN18 in Northamptonshire. Neighbouring towns we cover: Uppingham (6 miles), Kettering (7 miles) and Market Harborough (10 miles).

Much of Northamptonshire sits on clay that shrinks in dry summers and swells in wet winters. Historic ironstone working has left disturbed ground in places. What you mostly find across Northamptonshire: ironstone and limestone cottages, Victorian terraces in Northampton and Kettering, and new-town estates in Corby.

What to look for before calling about floor joist repairs

Floor dipping towards an outside wall or in the middle of the room
Ceiling cracks below that follow the line of the joists
A gap opening up between the skirting board and the floor

Floor joist repairs prices in Corby

Prices in Corby are worked out on East Midlands rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.

Guide prices inc VAT on East Midlands rates. Items marked est. are our estimates.
Item	Guide price	Per
Splicing or sistering a damaged joist	£245 – £390	per joist
Whole room of joists and boards	£1,950 – £5,900	per room
Sleeper wall rebuild and ventilationest.	£390 – £1,450	per room

How we usually approach floor joist repairs

Replacing joists and boards

When rot or woodworm runs through most of a floor, it is usually cheaper to replace the joists, strutting and boards together. Where joists run parallel to an outside wall, restraint straps tie the new floor back to it so the wall keeps its lateral support.

Best for: Widespread rot, or a whole floor that has dropped

Sleeper walls and ventilation

Settled or damp sleeper walls are rebuilt on a sound base with a damp-proof course under new timber plates. Blocked air bricks are cleared, extra ones added where the void has dead spots, and soil or paving heaped against the outside wall is lowered.

Best for: Damp ground floor voids or joists on poor supports

What happens during floor joist repairs, step by step?

Photos and a call
Send photos of the dip or soft area, the outside wall at ground level and any air bricks. A short call about when it started, and any recent plumbing or heating work, tells us whether the problem is local or widespread.
Written quote
You get a no-obligation written quote listing which joists are sistered, spliced or replaced and any sleeper wall or ventilation work. It becomes a fixed price in writing once the repair is specified.
Repair the structure
Boards are lifted and numbered if they are going back, and rotten timber is cut out. New treated timber is fixed and checked with a level before strutting, hangers and any restraint straps go in.

Rules for floor joist repairs in England

Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.

Questions about floor joist repairs in Corby

How much should I budget for floor joist repairs in Corby?

Guide prices for floor joist repairs in Corby start from about £245 per joist, including VAT, on East Midlands 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 Corby?

Yes. We take enquiries from across Corby, including NN17, NN18, and from nearby places such as Uppingham and Kettering. Send photos for a free initial view and we will tell you what happens next.

Why do houses in Northamptonshire crack?

Northamptonshire sits largely on Lias clay and Jurassic ironstones and limestones, with historic ironstone quarrying around Corby and Kettering. The clay vales are prone to shrinkage near trees. Only an investigation can say why a particular building has moved.

What causes rot in floor joists?

Damp causes almost all joist rot. Joist ends in damp walls, voids with blocked air bricks, leaking pipes and high outside ground levels keep timber wet enough for fungi to grow. Replacing timber without fixing the damp usually means the rot returns.

Do I need building control for floor joist repairs?

Usually not for like-for-like repairs to a few joists, but replacing a whole floor structure can be building work. In Scotland that generally needs a building warrant, and in Northern Ireland council building control applies. We deal with building control where the work needs it.

Related work in Corby

Floor joist repairs near Corby

Got a bouncy or sinking floor in Corby? Send a short video of someone walking across it, and we will tell you what it is likely to need.