Braintree · Essex
Floor joist repairs in Braintree
Whether it is one soft patch by the bathroom or a whole room dropping towards the wall, floor joist repairs in Braintree 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£260per joist inc VAT

- Postcodes
- CM7, CM77
- Population
- about 53,000
- Area
- Essex
- Pricing region
- East of England
How do local ground conditions affect floor joist repairs in Braintree?
We cover Braintree and its postcode districts CM7, CM77, part of Essex, with a population of roughly 53,000. Neighbouring towns we cover: Witham (7 miles), Chelmsford (10 miles) and Maldon (11 miles).
Essex is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Across Essex, most homes are Victorian terraces, 1930s semis and bungalows, and large post-war new-town estates in Basildon and Harlow.
What happens during floor joist repairs, step by step?
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.
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.
What to look for before calling about floor joist repairs
- Floor dipping towards an outside wall or in the middle of the room
- Ceiling cracks below that follow the line of the joists
- Floor bouncing, or ornaments rattling, when someone walks across
Floor joist repairs prices in Braintree
For Braintree we use East of England rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Splicing or sistering a damaged joist | £260 – £420 | per joist |
| Whole room of joists and boards | £2,100 – £6,300 | per room |
| Sleeper wall rebuild and ventilationest. | £420 – £1,600 | per room |
How we usually approach floor joist repairs
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
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
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.
Questions about floor joist repairs in Braintree
How much should I budget for floor joist repairs in Braintree?
Guide prices for floor joist repairs in Braintree start from about £260 per joist, including VAT, on East of England 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 Braintree?
We do. Braintree and the surrounding area are covered, including nearby Witham and Chelmsford. A free initial assessment from your photos is the first step.
Why do houses in Essex crack?
London Clay covers much of south and central Essex and boulder clay much of the north, making it one of the counties most affected by clay shrinkage in dry summers. Street and garden trees close to houses add to the risk. Only an investigation can say why a particular building has moved.
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.
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.
Related work in Braintree
- Underpinning
- Subsidence repairs
- Resin injection ground stabilisation
- Boundary and garden wall repairs
- Structural crack repairs
Floor joist repairs near Braintree
Send photos of the floor and the outside wall at your Braintree property for a free initial assessment and a no-obligation written quote.