Patio Door Repair in Bristol
Sliding patio door stiff, jammed, dropped, off its track, or won't lock? We repair sliding patio doors across Bristol, including rollers, handles, locks, alignment and glass. We can also assess track problems and advise on the best repair route. Most faults are a repair, not a replacement.
Family-run Bristol business · 20 years trade experience · Send a few photos and we'll tell you the likely repair route before booking
Most patio door faults are repairable
A sliding patio door that drags, sticks, or won't lock is rarely a reason to buy a new door. The most common faults — worn rollers, a damaged track, a tired lock mechanism, or a door that's dropped out of alignment — are usually repairable while the frame and glass stay in place. We diagnose the fault, give you a clear price, and fix it.
What's wrong with your patio door?
Hard to slide, drags along the track, or won't move smoothly. Usually worn rollers or a damaged track.
Won't lock or handle faultyHook lock not engaging, key won't turn, or the handle is loose or broken. A parts repair, not a new door.
Misted or broken glassCloudy sealed unit or smashed glass. The toughened glass unit is replaced; the frame stays.
Common patio door problems and what they mean
Not sure which fault you've got? Here are the sliding patio door problems we see most, what they usually point to, and the best next step. These are general guides — send us a few photos and we'll confirm the likely repair before booking.
| Problem you notice | What it usually means | What to do next |
|---|---|---|
| Stiff, heavy, or drags when sliding | Worn rollers or a dirty, damaged bottom track stopping the door running freely. | Roller adjustment or replacement, plus cleaning and checking the track — see rollers, track checks & alignment. Some systems use specific rollers we confirm first. |
| Door has dropped or catches on the frame | The door has come out of alignment, or the rollers have worn down on one side. | We reset and realign the door so it runs and meets the lock — see alignment. |
| Won't lock, or the handle is loose or faulty | A hook-lock mechanism, keep, or handle fault — a security priority, not a new door. | We prioritise doors that won't secure — see door lock repair. |
| Glass misted or cloudy between the panes | The sealed unit's seal has failed — it won't clear, and the proper fix is usually replacing the sealed glass unit, not resealing it. | A made-to-measure toughened unit; the frame stays — see door glass replacement. |
| Cracked or smashed glass | Impact damage — a security and weather risk on a large pane. | Priority replacement in toughened safety glass; temporary boarding if the door's exposed. |
Still not sure? Send us a few photos and we'll tell you the likely repair route and price before booking.
Patio door rollers, tracks and alignment
Sliding patio doors run on rollers along a bottom track. Over years of use the rollers wear down and the door starts to drag, scrape, or feel heavy. We can adjust or replace the rollers, clean and assess the track, and reset the door so it runs smoothly again. Some sliding systems use manufacturer-specific running gear — where that's the case we confirm the correct part before ordering anything.
If your door has dropped and now catches on the frame or won't meet the lock keep, that's an alignment issue we can correct.
Locks, handles and security
A patio door that won't lock is a security priority. The fault is usually the multi-point hook-lock mechanism, the keep on the frame, or the handle — all repairable. We carry common parts, and doors that won't secure are prioritised where possible. See our door lock repair page for more detail.
Glass replacement
Misted, cracked, or smashed patio door glass can be replaced without changing the door. Patio door glass normally needs to be toughened safety glass, and we quote it that way — we measure, order the made-to-measure sealed unit, and fit it. See door glass replacement and glass replacement.
What does it cost?
Patio door repairs usually start from £135 + VAT, depending on the fault and the parts required. Send us a few photos and we'll let you know the likely repair route before booking — no pressure, no surprise bills, and we agree the price before any work starts.
We only suggest a new patio door when the frame itself has failed and repair no longer makes sense. If a repair is the right answer — and it usually is — that's what we'll do.
Frequently asked questions
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Usually, yes. Stiff or heavy sliding is most often worn rollers or a dirty, damaged track — both usually repairable without replacing the door. We adjust or replace the rollers, clean and check the track, and reset the door so it glides again.
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Yes, where the fault is the rollers or running gear. Some sliding patio doors use system-specific rollers, so we confirm the part before ordering. If the track itself is badly worn we'll advise on the best fix before any work is agreed.
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Usually yes. A patio door that won't lock is normally a hook-lock mechanism, keep, or handle fault rather than a reason to replace the door. We treat locking and security faults as a priority.
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Yes. The sealed glass unit can be replaced while the frame stays in place. Patio door glass is toughened safety glass and we fit it as standard.
Got a patio door problem?
Send us a photo of the door and the fault — see our quick guide on what photos to send. We'll tell you the likely repair and price. Part of our full door repair service in Bristol.
Get a Free Quote
Describe the problem and add photos if you have them. We'll usually reply during working hours with advice and a price where possible.
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Broken glass or can't lock your door? Call 07400 466844