Liverpool · Merseyside
Floor joist repairs in Liverpool
Whether it is one soft patch by the bathroom or a whole room dropping towards the wall, floor joist repairs in Liverpool are priced only after the timber has been seen. Rot, notches and failed supports each need a different fix, and the quote says which.
Guide price from£240per joist inc VAT
- Postcodes
- L3, L69, L70
- Population
- about 500,000
- Area
- Merseyside
- Pricing region
- North West
Why does the ground in Merseyside matter for floor joist repairs?
Postcode districts L3, L69, L70 cover Liverpool, a Merseyside town of about 500,000 people. If you are just outside Liverpool, we also cover Birkenhead (2 miles), Wallasey (4 miles) and Fazakerley (4 miles).
Merseyside has a mix of ground, with clay in some places and firmer rock in others. Parts of Merseyside lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Merseyside: Victorian terraces and villas, inter-war council estates and post-war semis.
Methods for floor joist repairs
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
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
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.
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.
Symptoms that point to floor joist repairs
- Ceiling cracks below that follow the line of the joists
- A gap opening up between the skirting board and the floor
- Soft or spongy boards near outside walls, hearths or the bathroom
Guide prices for floor joist repairs in Liverpool
The ranges below reflect typical North West 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 – £385 | per joist |
| Whole room of joists and boards | £1,900 – £5,750 | per room |
| Sleeper wall rebuild and ventilationest. | £385 – £1,450 | 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.
Frequently asked questions
How much should I budget for floor joist repairs in Liverpool?
Guide prices for floor joist repairs in Liverpool start from about £240 per joist, including VAT, on North West 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 Liverpool?
Yes, Liverpool is covered, along with postcode districts L3, L69, L70. We also cover nearby Birkenhead and Wallasey.
Why do houses in Merseyside crack?
Merseyside is mostly sandstone with glacial till on top, with soft coastal deposits in Sefton and the Lancashire coalfield extending under St Helens and parts of Knowsley. Old docks and industry left made ground in places. Only an investigation can say why a particular building has moved.
Is a sagging floor dangerous?
A gentle, long-standing sag is usually not dangerous, and many older floors have moved slightly over a century. A sag that is getting worse, soft boards or a floor dropping near a wall needs checking soon, because rotten joist ends can lose their bearing.
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 Liverpool
- Retaining wall repairs
- Brick arch repairs
- Gable end wall repairs
- Underpinning
- Extension pulling away repairs
Floor joist repairs near Liverpool
If a floor in Liverpool has dropped after plumbing or heating work, send photos of any lifted boards and notches, and we will price the strengthening.