- Postcode district
- LL55
- 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
- Llangefni, Bangor (Gwynedd), Beaumaris
- Building rules
- Wales
Why repair your sliding door in Caernarfon?
Before you replace a sliding door, it is worth knowing which faults can be put right:
Landlords with properties in Caernarfon can often keep a sound sliding door working with a roller and lock service rather than a full replacement.
When sending photos of a Caernarfon 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.
- Repairing or refurbishing a damaged track removes the dips and burrs that make rollers jump, which stops a panel coming off its track.
- A new lock gearbox or cylinder restores secure locking when a handle turns but the bolts no longer engage, without replacing the whole door.
- 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.
Sliding door repair prices in Caernarfon
Use the table to budget for a repair in Caernarfon. Prices include VAT, parts and fitting, and are confirmed before we attend.
| Repair | Guide price inc VAT |
|---|---|
| Handle replacement | £95–£165 |
| Track repair or refurbishment | £195–£395 |
| Lock or gearbox replacement | £165–£295 |
| Roller replacement (per sliding panel) | £185–£325 |
Booking a sliding door repair in Caernarfon
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 LL55 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 Wales
Repairs to rollers, tracks and locks do not need approval in Wales; a whole new door does, under the Building Regulations as applied in Wales.
What we can repair
- Track repair or refurbishment. Repairing damaged track sections, or fitting a new track cover where the system allows.
- Lock and gearbox replacement. A new mechanism when the handle turns but the door will not lock.
- Handle replacement. Replacing broken or loose handles, including key-lockable versions.
Questions about sliding door repairs in Caernarfon
How quickly can you fix a sliding door in Caernarfon?
We offer a repair date in the LL55 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.
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.
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.
Can a sliding door track be repaired?
A damaged sliding door track can often be repaired or refurbished, depending on the door and how badly the track is worn. On some systems a replacement track cover can be fitted over a worn track, and on others a damaged section can be repaired. If the track is part of a frame that is failing more widely, replacement may be the better option.

