Chester · Cheshire
Floor joist repairs in Chester
If your floor in Chester 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
- CH1
- Population
- about 91,000
- Area
- Cheshire
- Pricing region
- North West
Why does the ground in Cheshire matter for floor joist repairs?
Postcode districts CH1 cover Chester, a Cheshire town of about 91,000 people. If you are just outside Chester, we also cover Ellesmere Port (6 miles), Neston (9 miles) and Widnes (14 miles).
Parts of Cheshire have clay that can shrink near trees in dry spells. Historic brine and salt working has caused ground movement in parts of Cheshire in the past. Housing stock in Cheshire: Brick terraces in Crewe, Northwich and Warrington, Victorian villas in Chester, and inter-war and post-war semis.
Which repair method suits a home in Chester?
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
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
What happens when we carry out floor joist repairs in Chester?
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.
Signs you may need floor joist repairs
- Ceiling cracks below that follow the line of the joists
- A gap opening up between the skirting board and the floor
- A musty smell, or fungal strands showing between the boards
How much will floor joist repairs cost in Chester?
These are guide prices for Chester, using North West rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| 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.
Floor joist repairs in Chester: questions and answers
How much should I budget for floor joist repairs in Chester?
Guide prices for floor joist repairs in Chester 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 Chester?
Yes, Chester is covered, along with postcode districts CH1. We also cover nearby Ellesmere Port and Neston.
Why do houses in Cheshire crack?
Most of Cheshire is glacial till over Mercia Mudstone. Around Northwich and the Weaver valley, historic salt and brine extraction has caused subsidence in the past, and a separate brine subsidence compensation scheme exists for parts of the county. Only an investigation can say why a particular building has moved.
Can floor joists be repaired without taking up the whole floor?
Yes, in most cases only the boards over the affected joists need lifting, and three or four boards are often enough to sister a joist or splice a rotten end. Widespread rot is the exception, because the whole floor must come up to remove the decay.
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 Chester
- Extension pulling away repairs
- Retaining wall repairs
- Structural crack repairs
- Wall tie replacement
- Bay window subsidence repairs
Floor joist repairs near Chester
If a floor in Chester has dropped after plumbing or heating work, send photos of any lifted boards and notches, and we will price the strengthening.