Floor joist repairs in Exeter

Postcodes: EX1, EX2, EX3, EX4
Population: about 130,000
Area: Devon
Pricing region: South West

Is Devon prone to ground movement?

With roughly 130,000 people, Exeter spans postcode districts EX1, EX2, EX3, EX4 in Devon. Nearby, we also cover Exmouth (9 miles), Tiverton (12 miles) and Newton Abbot (14 miles).

Clay shrinkage is less of a concern in Devon, so other causes such as drains, poor footings or older walls are checked first. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Housing stock in Devon: Cob and stone cottages, Victorian terraces in Exeter, Plymouth and Torbay, and post-war estates.

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.
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.

What to look for before calling about floor joist repairs

Floor dipping towards an outside wall or in the middle of the room
A musty smell, or fungal strands showing between the boards
Floor bouncing, or ornaments rattling, when someone walks across

Floor joist repairs prices in Exeter

These are guide prices for Exeter, using South West rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.

Guide prices inc VAT on South West rates. Items marked est. are our estimates.
Item	Guide price	Per
Splicing or sistering a damaged joist	£260 – £410	per joist
Whole room of joists and boards	£2,050 – £6,200	per room
Sleeper wall rebuild and ventilationest.	£410 – £1,550	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

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

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 Exeter

How much should I budget for floor joist repairs in Exeter?

Guide prices for floor joist repairs in Exeter start from about £260 per joist, including VAT, on South 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 Exeter?

Yes, Exeter is covered, along with postcode districts EX1, EX2, EX3, EX4. We also cover nearby Exmouth and Tiverton.

Why do houses in Devon crack?

Devon's ground is mostly older mudstones, sandstones and granite, so shrinkable-clay subsidence is less widespread than further east. Older solid-walled and cob buildings, steep sites and retaining walls are the more common structural concerns. Only an investigation can say why a particular building has moved.

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.

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.

Related work in Exeter

Floor joist repairs near Exeter

Get a free initial assessment of a sagging floor in Exeter from your photos or a call, before you commit to anything.