uPVC repairs

Patio & bi-fold door repairs

Sliding doors that drag, jump the track or won’t lock, and bi-folds that catch. Rollers, tracks, locks and adjustment.

Book a repair

Typical visit

Usually one visit. If your rollers are an uncommon type, we identify them first and fit them when they arrive.

AWhat you notice

  • The door is heavy, grinds or rumbles when you slide it
  • It jumps off the track or drags along the bottom
  • The lock hook misses the keep, so the door won’t lock
  • Bi-fold panels catch, won’t fold back flat, or drop at the end
  • A draught or daylight down the side where the panels meet

BLikely causes

  • The rollers (the wheels under the sliding panel) have worn flat or seized
  • Grit, dirt or damage on the track
  • The panels have dropped out of adjustment, so the lock no longer lines up
  • Worn runners, top guides or hinges on bi-fold doors

CHow we fix it

  • We replace worn rollers and set the running height so the door slides with light pressure
  • We clean the track and repair or replace damaged sections
  • We realign the panels and adjust the keeps so the lock engages properly
  • Bi-fold runners, hinges, guides and locks adjusted or replaced
  • Brush and interlock seals replaced where draughts get in
Before we visit

Worth knowing

Vacuum the track regularly. Grit is the main cause of roller wear.

Don’t use oil on the track, because it holds dirt. A dry PTFE spray works better.

Send photos of the door edge, the track and any maker’s name on the frame. They help us identify the rollers and lock before we visit.

Questions

Common questions

Can you repair old aluminium patio doors?

We specialise in uPVC, but we can often repair rollers and locks on aluminium sliders too. Send photos on WhatsApp and we’ll tell you whether it’s worth repairing.

Does the sliding panel have to come out?

To change the rollers, yes. The panel lifts out of the frame. It’s heavy glass, so please don’t try to lift it out yourself.

Other repairs

We also fix

See all repairs
Misted double glazingFog or droplets trapped between the panes mean the seal has failed. We replace the glass unit and keep your frame. Door locks & mechanismsHandle won’t lift, key won’t turn or the door won’t lock. We repair gearboxes, multipoint locks and cylinders. Handles & hingesWindows that drop, slam or won’t stay open, and handles that are loose or snapped. Hinges and handles replaced. Dropped & misaligned doorsA door that scrapes, catches or needs a shove to lock has usually dropped. We lift it, re-pack it and adjust it.

Free survey · written quote · no obligation

Send a photo, get a price.

A photo of the problem and your postcode on WhatsApp is the quickest way to get a repair booked.

Build your quote Or call07411 496356