- Postcode district
- GU34
- 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
- Bordon, Farnham, Basingstoke
- Building rules
- England
Why repair your sliding door in Alton?
Most sliding door problems come down to a handful of worn parts, and a repair is often far cheaper than a new door:
When sending photos of an Alton door for a repair quote, include any label on the frame edge or spacer bar, because it can help identify the system and its parts.
Where an older sliding door in Alton 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.
- Replacing worn rollers is often enough to bring back the light, smooth action of a sliding panel that has become heavy and noisy to open.
- Adjusting a dropped or misaligned panel can cure draughts, rattles and a door that will not close fully against its seals.
- 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.
Typical repair costs around Alton
Repair prices are the same across Hampshire. The table shows typical costs for common repairs, including VAT, parts and the visit to carry out the repair.
| Repair | Guide price inc VAT |
|---|---|
| Lock or gearbox replacement | £165–£295 |
| Roller replacement (per sliding panel) | £185–£325 |
| Misted sealed unit replacement (per pane) | £225–£495 |
| Re-alignment, adjustment and service | £125–£195 |
How repairs work in Alton
We repair sliding doors in Alton and nearby Bordon and Farnham. You approve the price first, then we book the visit; 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
Repairs are generally outside the Building Regulations in England. Any replacement glass we fit in a door is safety glazing, in line with Approved Document K, and if the door needs replacing rather than repairing, the controlled-fitting rules apply.
Repairs and upgrades to consider
- Roller replacement. New rollers for each sliding panel, restoring a smooth, quiet action.
- Adjustment and service. Re-aligning panels, cleaning tracks and checking seals and drainage.
- Handle replacement. Replacing broken or loose handles, including key-lockable versions.
Questions about sliding door repairs in Alton
Is there a call-out charge in Alton?
Many faults can be priced from photos or a short video, so a visit is not always needed. If we need to see the door first, a diagnostic visit costs £95 inc VAT, and we confirm it before we attend. Repair prices include the visit to carry out the repair.
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.
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.

