Pontypridd · Mid Glamorgan
Floor joist repairs in Pontypridd
If your floor in Pontypridd dips by a wall or bounces in the middle of the room, the joists are worth checking. Send photos of the floor, the outside wall at ground level and any air bricks, and we will tell you what the pattern suggests.
Guide price from£230per joist inc VAT
- Postcodes
- CF37
- Population
- about 31,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
Is Mid Glamorgan prone to ground movement?
We cover Pontypridd and its postcode districts CF37, part of Mid Glamorgan, with a population of roughly 31,000. Neighbouring towns we cover: Nelson (4 miles), Llantrisant (4 miles) and Tonypandy (5 miles).
Parts of Mid Glamorgan have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Mid Glamorgan: long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
How much will floor joist repairs cost in Pontypridd?
Guide prices below are for homes in Pontypridd, on Wales rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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 |
Which repair method suits a home in Pontypridd?
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
Sistering a joist
A new length of treated timber, the same depth as the original, is bolted or screwed alongside the damaged joist so the two share the load. It is the quickest fix for a notched, cracked or sagging joist that is otherwise sound, usually after lifting a few boards.
Best for: Cut, cracked or sagging joists with sound ends
What happens when we carry out floor joist repairs in Pontypridd?
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.
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.
Signs you may need floor joist repairs
- Ceiling cracks below that follow the line of the joists
- A musty smell, or fungal strands showing between the boards
- Floor dipping towards an outside wall or in the middle of the room
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.
Floor joist repairs in Pontypridd: questions and answers
How much should I budget for floor joist repairs in Pontypridd?
Guide prices for floor joist repairs in Pontypridd 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.
Can you survey a property in Pontypridd?
Yes, Pontypridd is covered, along with postcode districts CF37. We also cover nearby Nelson and Llantrisant.
Why do houses in Mid Glamorgan crack?
Mid Glamorgan lies on the South Wales coalfield, with dense historic workings, spoil tips and steep valley sides. Landslip, retaining walls and mining legacy are all live issues in the valleys. 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.
Related work in Pontypridd
- Retaining wall repairs
- Subsidence insurance claim repairs
- Bowing wall repairs
- Extension pulling away repairs
- Subsidence repairs
Floor joist repairs near Pontypridd
For a guide price on floor joist repairs in Pontypridd, use the quote tool or send photos of the dip, any soft boards and the air bricks.