- Postcode district
- CR8
- Survey
- Priced from photos or a diagnostic visit
- Booking
- Most repairs are booked within a few weeks, parts permitting
- Guide price
- From £95 inc VAT
- Nearby
- Coulsdon, Croydon, Carshalton
- Building rules
- England
Common sliding door faults we fix in Purley
Before you replace a sliding door, it is worth knowing which faults can be put right:
Where an older sliding door in Purley has several faults at once, such as misted glass, worn rollers and a failing lock, compare the total repair cost with a replacement before deciding.
If a sliding door at your Purley home has started to drag, clean the bottom track thoroughly before booking anything, as grit alone can cause the problem.
- Repairing or refurbishing a damaged track removes the dips and burrs that make rollers jump, which stops a panel coming off its track.
- Adjusting a dropped or misaligned panel can cure draughts, rattles and a door that will not close fully against its seals.
- A new lock gearbox or cylinder restores secure locking when a handle turns but the bolts no longer engage, without replacing the whole door.
Sliding door repair prices in Purley
Use the table to budget for a repair in Purley. Prices include VAT, parts and fitting, and are confirmed before we attend.
| Repair | Guide price inc VAT |
|---|---|
| Lock or gearbox replacement | £165–£295 |
| Roller replacement (per sliding panel) | £185–£325 |
| Re-alignment, adjustment and service | £125–£195 |
| Track repair or refurbishment | £195–£395 |
How repairs work in Purley
Send photos or a short video of the fault and we tell you the likely repair and cost before anyone visits. We then book a repair visit in the CR8 district at a time that suits you; most repairs are completed in a single visit, unless parts need ordering or a new glass unit must be made.
Rules for sliding door repairs 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.
Repairs and upgrades to consider
- Misted unit replacement. A new sealed safety glass unit in place of one that has failed.
- Lock and gearbox replacement. A new mechanism when the handle turns but the door will not lock.
- Adjustment and service. Re-aligning panels, cleaning tracks and checking seals and drainage.
Questions about sliding door repairs in Purley
How quickly can you fix a sliding door in Purley?
We offer a repair date in the CR8 district once you approve the price. Common parts such as rollers and handles can often be fitted on the first visit; specialist parts may need ordering.
What photos should I send for a repair quote?
Send a photo of the whole door from inside, close-ups of the handle, the lock edge and the bottom track, and any label or marking on the frame or glass spacer. A short video of the door opening and closing is especially helpful. Tell us roughly how old the door is and what it is doing wrong.
Is it worth repairing an old sliding patio door?
Repairing an old sliding patio door is worth it if the frame and glass are sound and the parts are available, because a few new rollers or a lock can restore it for a fraction of the cost of replacement. If the frame is failing, the door is single glazed or parts are discontinued, replacement usually makes more sense.
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.

