Floor joist repairs in Neath

Postcodes: SA10, SA11
Population: about 46,000
Area: West Glamorgan
Pricing region: Wales

What should you know about the ground under Neath?

Neath, West Glamorgan: about 46,000 residents across postcode districts SA10, SA11. Nearby places we cover include Clydach (4 miles), Swansea (7 miles) and Maesteg (7 miles).

Clay soils are found in parts of West Glamorgan. Historic coal workings are recorded beneath parts of West Glamorgan, and a coal mining search is worth checking where movement is unexplained. Typical buildings in West Glamorgan: Hillside terraces, Victorian villas in Swansea and post-war estates.

What happens during floor joist repairs, step by step?

Lift boards and inspect
On site we lift a few boards where the floor is worst and check the joist ends, sleeper walls and void with a moisture meter. Outside, we look for high ground, blocked vents and leaks keeping the timber wet.
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.
Relay and ventilate
Boards are relaid or replaced, skirting refitted and air bricks cleared or added outside. We point out anything that would let damp back in, such as soil heaped against the wall, so the repair lasts.

What to look for before calling about floor joist repairs

Ceiling cracks below that follow the line of the joists
Floor bouncing, or ornaments rattling, when someone walks across
Floor dipping towards an outside wall or in the middle of the room

Floor joist repairs prices in Neath

The ranges below reflect typical Wales costs for floor joist repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.

Guide prices inc VAT on Wales rates. Items marked est. are our estimates.
Item	Guide price	Per
Splicing or sistering a damaged joist	£230 – £370	per joist
Whole room of joists and boards	£1,850 – £5,500	per room
Sleeper wall rebuild and ventilationest.	£370 – £1,400	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

Splicing ends and fitting hangers

Where only the end has rotted, it is cut back to sound timber and a new piece is fixed alongside, bearing on the wall or on a new joist hanger. Missing or under-nailed hangers elsewhere are replaced at the same time. The damp in the wall must be fixed too.

Best for: Rotten joist ends in damp solid walls

Rules for floor joist repairs in Wales

In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.

Questions about floor joist repairs in Neath

What is the price of floor joist repairs in Neath?

Guide prices for floor joist repairs in Neath start from about £230 per joist, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.

Do you carry out floor joist repairs in Neath?

Yes. We take enquiries from across Neath, including SA10, SA11, and from nearby places such as Clydach and Swansea. Send photos for a free initial view and we will tell you what happens next.

Does the ground around Neath cause cracking?

Swansea and Neath Port Talbot lie on the South Wales coalfield, with historic workings, tips and steep valley sides, and softer estuarine ground around the docks. Only an investigation can say why a particular building has moved.

Will my insurance pay for rotten floor joists?

Usually not, because rot, woodworm and gradual wear are standard exclusions. Damage from a sudden escape of water, or a floor that dropped through subsidence, may be treated differently. Check your policy, and tell your insurer before permanent repairs start if either applies.

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.

More repairs we carry out in Neath

Floor joist repairs near Neath

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