- Postcode district
- WD7
- 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
- St Albans, Edgware, Barnet
- Building rules
- England
Sliding door repairs in Radlett: what to know
Before you replace a sliding door, it is worth knowing which faults can be put right:
Landlords with properties in Radlett can often keep a sound sliding door working with a roller and lock service rather than a full replacement.
If a sliding door at your Radlett home has started to drag, clean the bottom track thoroughly before booking anything, as grit alone can cause the problem.
- 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.
- Misted sealed units can usually be replaced individually with new safety glass units, restoring the view and the insulation of that panel.
- A well-maintained, repaired door can give years more service, making a repair a sensible first step when the frame and glass are otherwise sound.
Typical repair costs around Radlett
Repair prices are the same across Hertfordshire. The table shows typical costs for common repairs, including VAT, parts and the visit to carry out the repair.
| Repair | Guide price inc VAT |
|---|---|
| Handle replacement | £95–£165 |
| Roller replacement (per sliding panel) | £185–£325 |
| Track repair or refurbishment | £195–£395 |
| Re-alignment, adjustment and service | £125–£195 |
How repairs work in Radlett
Repairs in Radlett 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.
Do you need approval in Radlett?
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.
What we can repair
- Lock and gearbox replacement. A new mechanism when the handle turns but the door will not lock.
- Roller replacement. New rollers for each sliding panel, restoring a smooth, quiet action.
- Misted unit replacement. A new sealed safety glass unit in place of one that has failed.
Questions about sliding door repairs in Radlett
How quickly can you fix a sliding door in Radlett?
We offer a repair date in the WD7 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.
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.
Is there a free survey for sliding door repairs?
No, our free survey applies to new doors and replacements only. Repairs are quoted from photos and a short video you send us, or after a diagnostic visit where photos are not enough. If a visit is needed, the diagnostic visit costs £95 inc VAT and is confirmed before we attend, so you know where you stand.

