Lancing · West Sussex
Floor joist repairs in Lancing
If a plumber or electrician has recently had the boards up at your Lancing 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£280per joist inc VAT
- Postcodes
- BN15
- Population
- about 19,000
- Area
- West Sussex
- Pricing region
- South East
How do local ground conditions affect floor joist repairs in Lancing?
We cover Lancing and its postcode districts BN15, part of West Sussex, with a population of roughly 19,000. If you are just outside Lancing, we also cover Shoreham-by-Sea (2 miles), Worthing (2 miles) and Brighton (8 miles).
Much of West Sussex sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Across West Sussex, most homes are Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.
What happens when we carry out floor joist repairs in Lancing?
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.
Signs you may need floor joist repairs
- Floor dipping towards an outside wall or in the middle of the room
- A gap opening up between the skirting board and the floor
- Floor bouncing, or ornaments rattling, when someone walks across
How much will floor joist repairs cost in Lancing?
Prices in Lancing are worked out on South East rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Splicing or sistering a damaged joist | £280 – £450 | per joist |
| Whole room of joists and boards | £2,250 – £6,700 | per room |
| Sleeper wall rebuild and ventilationest. | £450 – £1,700 | per room |
Which repair method suits a home in Lancing?
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
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 Lancing: questions and answers
What is the price of floor joist repairs in Lancing?
Guide prices for floor joist repairs in Lancing 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.
Do you carry out floor joist repairs in Lancing?
Yes. We take enquiries from across Lancing, including BN15, and from nearby places such as Shoreham-by-Sea and Worthing. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Lancing cause cracking?
North West Sussex around Crawley and Horsham sits on Weald Clay, the South Downs are chalk, and the coastal plain has brickearth and gravels. The Weald Clay is prone to shrink-swell movement near trees. 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.
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.
More repairs we carry out in Lancing
- Boundary and garden wall repairs
- Gable end wall repairs
- Extension pulling away repairs
- Structural surveys and crack monitoring
- Resin injection ground stabilisation
Floor joist repairs near Lancing
Get a free initial assessment of a sagging floor in Lancing from your photos or a call, before you commit to anything.