- Postcode district
- LL40
- 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
- Machynlleth, Porthmadog, Bala
- Building rules
- Wales
Common sliding door faults we fix in Dolgellau
Here is what usually goes wrong with sliding doors, and what can be done about it:
Where an older sliding door in Dolgellau 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.
Before calling out anyone in Dolgellau 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.
- 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.
How much does a sliding door repair cost in Dolgellau?
These guide prices include VAT, parts and labour for the repair visit. Most faults can be priced from photos; if we need to see the door first, a diagnostic visit is £95.
| Repair | Guide price inc VAT |
|---|---|
| Handle replacement | £95–£165 |
| Misted sealed unit replacement (per pane) | £225–£495 |
| Roller replacement (per sliding panel) | £185–£325 |
| Track repair or refurbishment | £195–£395 |
From photos to fixed door in Dolgellau
Repairs in Dolgellau start with photos or, if needed, a diagnostic visit. Once you approve the price we book the repair: most repairs are booked within a few weeks, parts permitting, and specialist parts are ordered where needed.
Rules for sliding door repairs in Wales
Like-for-like repairs are not building work in Wales. Any replacement glass we fit in a door is safety glazing, and a full replacement door follows the Welsh Building Regulations.
Common repairs and upgrades
- Lock and gearbox replacement. A new mechanism when the handle turns but the door will not lock.
- Misted unit replacement. A new sealed safety glass unit in place of one that has failed.
- Adjustment and service. Re-aligning panels, cleaning tracks and checking seals and drainage.
Questions about sliding door repairs in Dolgellau
Do you repair sliding doors in Dolgellau?
Yes. We repair sliding doors in Dolgellau and across Gwynedd, including nearby Machynlleth. Send photos or a short video and we will tell you the likely fix and cost before booking a visit.
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.

