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Ely · Cambridgeshire

Floor joist repairs in Ely

If a plumber or electrician has recently had the boards up at your Ely home, the joists they worked around are worth a look. Deep notches and holes in the wrong place weaken joists quickly, and sistering them is usually a short, tidy job.

Guide price from£260per joist inc VAT

New timber joist bolted alongside a rotten joist under lifted floorboards
Postcodes
CB6
Population
about 21,000
Area
Cambridgeshire
Pricing region
East of England

What should you know about the ground under Ely?

Ely is in Cambridgeshire and takes in postcode districts CB6. About 21,000 people live there. Nearby, we also cover Newmarket (12 miles), March (13 miles) and St Ives (15 miles).

Cambridgeshire 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. Typical buildings in Cambridgeshire: Victorian terraces in Cambridge and Peterborough, fen-edge cottages, and extensive post-war and new-build estates.

What should you budget for floor joist repairs in Ely?

Guide prices below are for homes in Ely, on East of England rates and including VAT. A survey or good photos let us turn them into a fixed written price.

Guide prices inc VAT on East of England rates. Items marked est. are our estimates.
ItemGuide pricePer
Splicing or sistering a damaged joist£260 – £420per joist
Whole room of joists and boards£2,100 – £6,300per room
Sleeper wall rebuild and ventilationest.£420 – £1,600per room

Repair options we may recommend

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

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

What to expect when we carry out floor joist repairs

  1. 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.

  2. 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.

  3. 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

  • A musty smell, or fungal strands showing between the boards
  • 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 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

What is the price of floor joist repairs in Ely?

Guide prices for floor joist repairs in Ely 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.

Do you carry out floor joist repairs in Ely?

Yes. We take enquiries from across Ely, including CB6, and from nearby places such as Newmarket and March. Send photos for a free initial view and we will tell you what happens next.

Does the ground around Ely cause cracking?

Gault Clay underlies much of the Cambridge area and Oxford Clay the west of the county around Peterborough and Huntingdon, while the northern fens are peat and silt that can shrink as they dry. Both clay and peat ground can move with the seasons. 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.

Will my insurance pay for rotten floor joists?

Usually not, because rot, woodworm and gradual wear are standard exclusions. Damage from a sudden escape of water, or a floor that dropped through subsidence, may be treated differently. Check your policy, and tell your insurer before permanent repairs start if either applies.

More repairs we carry out in Ely

Floor joist repairs near Ely

Each joist, sleeper wall and air brick at your Ely property is itemised in the written quote, then fixed in price once the repair is specified.

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

CallGet a quote