Dundee · Angus and Dundee
Floor joist repairs in Dundee
Houses in Dundee and across Angus and Dundee with suspended timber ground floors rely on dry walls and a ventilated void to stay sound. When either fails, rot usually starts at the edges of the room long before anything shows in the middle.
Guide price from£240per joist inc VAT
- Postcodes
- DD1, DD2, DD3, DD4, DD5
- Population
- about 150,000
- Area
- Angus and Dundee
- Pricing region
- Scotland
How do local ground conditions affect floor joist repairs in Dundee?
Dundee is in Angus and Dundee and takes in postcode districts DD1, DD2, DD3, DD4, DD5. About 150,000 people live there. We also take enquiries from nearby Carnoustie (11 miles), Forfar (12 miles) and Arbroath (16 miles).
Shrinkable clay is less common in Angus and Dundee than in south-east England. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Angus and Dundee: Sandstone tenements in Dundee, fishing-town houses and post-war estates.
Guide prices for floor joist repairs in Dundee
The ranges below reflect typical Scotland costs for floor joist repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Splicing or sistering a damaged joist | £240 – £380 | per joist |
| Whole room of joists and boards | £1,900 – £5,700 | per room |
| Sleeper wall rebuild and ventilationest. | £380 – £1,400 | per room |
Methods for 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
From first photo to finished repair
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.
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.
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.
Symptoms that point to floor joist repairs
- Floor bouncing, or ornaments rattling, when someone walks across
- Soft or spongy boards near outside walls, hearths or the bathroom
- Ceiling cracks below that follow the line of the joists
Rules for floor joist repairs in Scotland
In Scotland, small repairs often do not need a building warrant, but structural alterations and strengthening generally do. Check with the council’s building standards service if unsure; there is no Party Wall Act in Scotland.
Frequently asked questions
How much will floor joist repairs cost in Dundee?
Guide prices for floor joist repairs in Dundee start from about £240 per joist, including VAT, on Scotland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Dundee?
Yes. We take enquiries from across Dundee, including DD1, DD2, DD3, DD4, and from nearby places such as Carnoustie and Forfar. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Angus and Dundee prone to subsidence?
Angus and Dundee sit on Old Red Sandstone and igneous rock with glacial and raised-beach deposits. Hillside sites in Dundee mean retaining walls are common. Only an investigation can say why a particular building has moved.
Why is my floor bouncy?
A bouncy floor usually means the joists are deflecting too much, often because they span too far, have lost their strutting or have been weakened by notches. It rarely means imminent failure, but it is worth checking, especially if the bounce appeared after work in the room.
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.
Other structural repairs in Dundee
- Chimney stack repairs
- Structural crack repairs
- Extension pulling away repairs
- Gable end wall repairs
- Structural surveys and crack monitoring
Floor joist repairs near Dundee
Got a bouncy or sinking floor in Dundee? Send a short video of someone walking across it, and we will tell you what it is likely to need.