South London based · Patio & sliding glass doors · Same-day repairs
Sliding door stiff, jumping off its track, or not locking properly? The vast majority of sliding door problems are rollers, tracks, or lock mechanisms — not the glass or frame. We carry the most common replacement parts and fix on the same visit.
Common Faults
Most sliding door faults come down to rollers, tracks, or locking hardware — all of which we carry and replace on the same visit.
Worn or broken bottom rollers cause sliding doors to scrape, jump, or become difficult to slide. We replace rollers on uPVC, aluminium, and timber sliding doors.
Bent, damaged, or debris-clogged tracks repaired and cleaned. Sometimes a thorough clean and adjustment is all that's needed to restore smooth operation.
Multipoint locks and shoot bolts on patio doors repaired or replaced. Sliding door locks are a common security weak point — we upgrade to more secure alternatives.
Internal and external handles on sliding doors replaced. We carry a wide range of standard sliding door handle sets for same-day fitting.
Misted or damaged double-glazed sealed units in sliding doors assessed. We advise whether the unit can be replaced within the existing frame or whether frame replacement is needed.
Bottom brush seals and compression seals replaced on sliding doors to stop draughts and reduce heat loss. Common on older patio doors.
Why BLD
A stiff or derailed sliding door is frustrating and can be a security risk. Whether it is a patio door, internal slider, or heavy aluminium panel, BLD carry out same-day sliding door repairs across London — restoring smooth operation without the cost of full replacement.
Coverage
South London based — same-day sliding door repairs across London with no call-out fee.
FAQ
The most common causes are worn rollers, a dirty or damaged track, or a misaligned frame. We diagnose the issue on arrival and carry common replacement rollers to fix most doors in a single visit.
In most cases yes. Rollers can be accessed and replaced with the door panel in place, saving time and disruption.
Yes. We repair all sliding door types including aluminium and uPVC patio doors, timber sliders, and internal room dividers.
No — there is never a call-out fee. We confirm the price for the work before we start. You only pay for what we do.
Transparent Pricing
No call-out fee. We confirm a fixed price over the phone before we start. These are typical guides, not maximums.
| Service | From | Typical time |
|---|---|---|
| Roller replacement (per door) | Call for a quote | 60-90 mins |
| Track replacement / realignment | Call for a quote | 90-120 mins |
| Handle / lock replacement | Call for a quote | 30-45 mins |
| Sealed unit replacement | Call for a quote | survey required |
| Anti-lift bar fitting | Call for a quote | 30-45 mins |
Prices include parts & labour for the most common variants. Unusual locks (high-security commercial cylinders, custom multi-point gearboxes, large shopfront glass) may sit higher — we'll always confirm a fixed price after a quick phone description before we set off.
Repair not replace · Same-day available · No call-out fee · Fixed price