Sheffield · South Yorkshire
Floor joist repairs in Sheffield
If your floor in Sheffield 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£240per joist inc VAT
- Postcodes
- S1, S2, S3
- Population
- about 560,000
- Area
- South Yorkshire
- Pricing region
- Yorkshire and the Humber
What should you know about the ground under Sheffield?
Sheffield, South Yorkshire: about 560,000 residents across postcode districts S1, S2, S3. If you are just outside Sheffield, we also cover Rotherham (6 miles), Dronfield (6 miles) and Chapeltown (6 miles).
Parts of South Yorkshire have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of South Yorkshire, and a coal mining search is worth checking where movement is unexplained. What you mostly find across South Yorkshire: brick and stone terraces, colliery housing, inter-war council estates and post-war semis.
Repair options we may recommend
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 to expect when we carry out floor joist repairs
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.
Is it time for floor joist repairs? Common signs
- Soft or spongy boards near outside walls, hearths or the bathroom
- A gap opening up between the skirting board and the floor
- Ceiling cracks below that follow the line of the joists
What should you budget for floor joist repairs in Sheffield?
Guide prices below are for homes in Sheffield, on Yorkshire and the Humber 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 | £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 |
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.
Your floor joist repairs questions
How much should I budget for floor joist repairs in Sheffield?
Guide prices for floor joist repairs in Sheffield start from about £240 per joist, including VAT, on Yorkshire and the Humber 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 Sheffield?
We do. Sheffield and the surrounding area are covered, including nearby Rotherham and Dronfield. A free initial assessment from your photos is the first step.
Why do houses in South Yorkshire crack?
South Yorkshire lies largely on the Coal Measures, with a long history of shallow and deep mining around Barnsley, Rotherham and Doncaster. Sheffield's hillside sites add retaining walls and steep ground to the mix. Only an investigation can say why a particular building has moved.
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.
What is sistering a floor joist?
Sistering is fixing a new length of timber alongside an existing joist so the two share the load. It strengthens a notched, cracked or sagging joist without removing it, so it is quicker and less disruptive than replacement.
Related work in Sheffield
- Subsidence repairs
- Subsidence insurance claim repairs
- Extension pulling away repairs
- Structural surveys and crack monitoring
- Mining subsidence repairs
Floor joist repairs near Sheffield
For a guide price on floor joist repairs in Sheffield, use the quote tool or send photos of the dip, any soft boards and the air bricks.