Sliding Patio Door Repair in Toronto: Rollers, Tracks, Locks & Glass
A patio door that drags, jumps the track or won't lock almost never needs replacing, because the glass and frame outlast the moving parts by decades. We replace worn rollers, clean or cap damaged tracks, and adjust the panel so it slides, seals and locks again. We also replace broken glass in your existing frame.
Common Patio Door Problems We Fix
Hard to slide, grinding or jerking
The rollers are worn or seized, or the track is full of grit.
The door comes off the track
The rollers are damaged, the track lip is bent, or the panel is out of adjustment.
It won’t lock or latch
The panel has dropped and no longer meets the lock keeper.
Drafts and water at the bottom
The panel is sitting low and not compressing the weatherstripping.
Foggy glass
The sealed unit in the panel has failed. Foggy glass repair →
Cracked or broken glass
We make tempered patio door glass to size. Glass replacement →
A torn or broken screen door
We fit new mesh, rollers and frames. Screen repair →
Sliding Door Roller Replacement
Rollers are the small wheels under the door panel that carry its full weight. Once they flatten or seize, the door drags on the track and wears the track out too. We lift the panel out and replace the rollers with matching or compatible parts. Then we clean the track, or cap it if the running lip is damaged, re-hang the panel and adjust it so it closes and locks properly. Most roller repairs are finished in one visit.
Want to try a quick fix first? Read our guide: Patio Door Won't Slide →Damaged Track Repair
A dented or worn track will chew through new rollers. Where the track is still sound we clean it thoroughly. Where the running lip is damaged, we cap it with a new track cover so the rollers have a smooth surface again, without replacing the door or the sill.
Patio Door Glass Replacement
Building code requires tempered safety glass in patio doors. We measure the panel, have a new tempered sealed unit made (5-15 business days, depending on glass type and size), and install it in your existing panel. You can upgrade to Low-E or argon-filled glass at the same time. New sealed units carry a 3-year warranty against fogging, plus a 1-year workmanship warranty on installation.
Locks, Handles and Weatherstripping
Worn locks, loose handles and flattened weatherstripping let cold air in and make the door feel insecure. Often the lock itself is fine and only the panel needs adjusting. Where the hardware is worn, we replace it with compatible parts and renew the weatherstripping so the door closes tight again.
Repair or Replace Your Patio Door?
Repair it if the frame is straight and solid. Replace it if the frame is rotted, badly bent or beyond adjustment. A new patio door is a big project, and a repair usually costs a fraction of it. We'll tell you which one you actually need.
How It Works
Send a photo, or a short video of the door moving
It tells us most of what we need.
Get a written price
Quotes are free from photos, or book a $30 site visit, credited back if the work goes ahead.
We do the work
Roller, track and hardware repairs are usually done on the first visit. Glass is measured, made in 5-15 business days, and installed on a second visit.
You get the warranty on your invoice
1 year on parts and labour for hardware.
Patio Door Repair FAQs
Why is my sliding patio door so hard to open?
Can you replace the rollers on a sliding door?
Can you fix a damaged sliding door track?
Can you replace just the glass in a patio door?
My patio door won’t lock. Is the lock broken?
How much does patio door repair cost?
Get Your Patio Door Sliding Again
Send a photo for a free quote, or call for same-day service.
Quote by visit: $30 | Quote based on photo: Free
*The $30 visit fee is credited toward your final payment if you proceed with the work
Or email us: Service@Luminasky.com