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Caterham · Surrey

Floor joist repairs in Caterham

If your floor in Caterham 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£280per joist inc VAT

New timber joist bolted alongside a rotten joist under lifted floorboards
Postcodes
CR3, CR6
Population
about 21,000
Area
Surrey
Pricing region
South East

What is the ground like in Surrey?

Caterham, Surrey: about 21,000 residents across postcode districts CR3, CR6. We also take enquiries from nearby Redhill (5 miles), Croydon (5 miles) and Banstead (6 miles).

Surrey 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 Surrey: Victorian and Edwardian villas, 1930s semis and detached houses in the commuter towns, and post-war estates.

Is it time for floor joist repairs? Common signs

  • Floor dipping towards an outside wall or in the middle of the room
  • Floor bouncing, or ornaments rattling, when someone walks across
  • Ceiling cracks below that follow the line of the joists

What should you budget for floor joist repairs in Caterham?

The ranges below reflect typical South East costs for floor joist repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.

Guide prices inc VAT on South East rates. Items marked est. are our estimates.
ItemGuide pricePer
Splicing or sistering a damaged joist£280 – £450per joist
Whole room of joists and boards£2,250 – £6,700per room
Sleeper wall rebuild and ventilationest.£450 – £1,700per room

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

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. 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.

  2. 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.

  3. 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.

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 Caterham?

Guide prices for floor joist repairs in Caterham start from about £280 per joist, including VAT, on South East 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 Caterham?

Yes, Caterham is covered, along with postcode districts CR3, CR6. We also cover nearby Redhill and Croydon.

Why do houses in Surrey crack?

North Surrey sits on London Clay, the south on Weald Clay, with chalk along the North Downs and sands in the west. Large gardens with mature trees on clay make seasonal subsidence a familiar problem. 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.

Why is my floor bouncy?

A bouncy floor usually means the joists are deflecting too much, often because they span too far, have lost their strutting or have been weakened by notches. It rarely means imminent failure, but it is worth checking, especially if the bounce appeared after work in the room.

Related work in Caterham

Floor joist repairs near Caterham

For a guide price on floor joist repairs in Caterham, use the quote tool or send photos of the dip, any soft boards and the air bricks.

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.

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