Sliding door repairs across West Sussex
Here is what usually goes wrong with sliding doors, and what can be done about it:
Before calling out anyone in West Sussex for a door that will not lock, check whether the panel has dropped: if the hooks no longer meet the keeps, adjustment may be all it needs.
Is the patio door in your West Sussex house leaking at the bottom after heavy rain? Check the drainage slots in the outer frame are clear before assuming a seal has failed.
- Misted sealed units can usually be replaced individually with new safety glass units, restoring the view and the insulation of that panel.
- Repairing or refurbishing a damaged track removes the dips and burrs that make rollers jump, which stops a panel coming off its track.
- Where a repair is not worth doing, for example because parts are unavailable, we say so plainly rather than fitting parts that will not last.
Repair prices in West Sussex
Repair prices are the same across West Sussex. These guide prices include VAT, parts and the visit to carry out the repair. Most faults can be priced from photos; if we need to see the door first, a diagnostic visit costs £95 inc VAT, confirmed before we attend.
| Repair | Guide price inc VAT |
|---|---|
| Re-alignment, adjustment and service | £125–£195 |
| Misted sealed unit replacement (per pane) | £225–£495 |
| Roller replacement (per sliding panel) | £185–£325 |
| Lock or gearbox replacement | £165–£295 |
| Handle replacement | £95–£165 |
Towns we cover in West Sussex
We survey and fit sliding door repairs in 14 towns across West Sussex, including the BN11, BN17, BN18, BN43, GU28, GU29 postcode districts.
Approvals in England
Like-for-like repairs such as new rollers, locks, handles or adjustment are not building work under the Building Regulations in England. If the whole door is replaced, it becomes a controlled fitting and the replacement rules apply.
Questions about sliding door repairs in West Sussex
Do you repair sliding doors in West Sussex?
Yes. We repair sliding doors in West Sussex and across West Sussex, including Crawley. Send photos or a short video and we will tell you the likely fix and cost before booking a visit.
How can I stop my sliding door needing repairs?
Keeping the track clean is the most effective way to keep a sliding door running well, because grit wears rollers and damages the track surface. Vacuum the track regularly, wipe it with a damp cloth, keep drainage slots clear and avoid slamming panels into their stops. Our maintenance guide has a simple routine.
Can you replace misted glass in a sliding door?
Yes, a misted sealed unit in a sliding door can usually be replaced on its own without changing the frame. The new unit is made to the size of the old one in safety glass, as glass in doors must be, and fitted into the existing panel. It is worth checking whether the frame is still sound first.
Why won't my sliding door lock?
A sliding door that will not lock usually has a failed lock gearbox, a worn or broken keep, or a panel that has dropped so the hooks no longer line up with the frame. Forcing the handle can make it worse. Photos of the handle, the lock edge and the frame where the hooks engage usually show which part has failed.