Door diagnosis

We check the full opening, not just one part

For homes, condos and residential properties that need better security, smoother operation, stronger sealing and cleaner curb appeal.

FrameSlabCloserHinges / pivotsLock sideThreshold
Quick answer

Is this the right door service?

Here is what customers usually need to know before calling or sending photos.

Use this service when

  • Sliding patio doors with worn rollers, dirty tracks or dragging panels that no longer move smoothly.
  • Drafts, water entry or loose handles and locks affecting comfort and security at backyard openings.
  • Misaligned sashes or failed seals that make the patio door harder to close, latch or insulate properly.

What DoorWin checks or does

  • Patio-door diagnostics for rollers, tracks, handles, locks and panel alignment where dragging or poor closure is the main complaint.
  • Clear repair guidance on whether the issue is track contamination, worn rollers, seal failure or broader panel/frame wear.
  • Post-service testing focused on smoother glide, cleaner locking and better everyday use at the backyard or deck opening.

Which service path fits?

Process

What happens during the visit

01

Review photos and service details.

02

Confirm the right scope and service timing.

03

Complete the repair, replacement or make-safe work.

04

Test the opening and share next-step recommendations.

Quote prep

Photos that help us quote the door correctly

Send photos and a short note. DoorWin will review the issue and recommend the next step.

✓Full door and frame photo
✓Closer, hinge/pivot, lock side and threshold close-ups
✓What the door does: drags, slams, sticks or misses latch
✓City, property type and urgency
Completed work

Completed projects

See related completed projects selected for this service.

FAQ

Questions about Patio Doors

Why is my sliding patio door so hard to open?

Worn rollers and a dirty or damaged track are the most common causes. The panel starts dragging instead of gliding. Replacing the rollers and servicing the track usually restores smooth one-hand operation without replacing the door.

Can you replace patio door rollers without replacing the whole door?

Yes. We remove the sliding panel, fit new heavy-duty tandem rollers matched to the panel weight, clean and true the track, and rehang the door - typically in a single visit.

How much does sliding patio door repair cost in Toronto?

Roller and track repairs cost a fraction of a new patio door. The price depends on the roller type, panel size and track condition. Send photos of the door and track and we will give you a free upfront quote.

Do you replace foggy glass in sliding patio doors?

Yes. If the sealed unit has failed and the glass is foggy, we replace just the insulated glass unit (IGU) inside the existing panel, keeping your frame and hardware.

Next step

Get the door diagnosed before it becomes an emergency

Send photos and a short note. DoorWin will review the issue and recommend the next step.

DoorWin Google Reviews

Ike Kvapil 6 reviews • 4 photos
★★★★★

Max at DoorWin completed a professionally executed job on our front door while being a pleasure to deal with...would recommend him for any services their company provides.

J1330i 2 reviews
★★★★★

Guys, thank you again for the excellent services!! Extremely fast and professional at a fair price...thanks again!!!

Nicole Seahra Local Guide • 62 reviews • 19 photos
★★★★★

Doorwin Services alongside Alex were amazing. Came in same day. Went above and beyond. Thanks so much!

Anastasiia Dashkevych 7 reviews
★★★★★

Great experience with the window replacement. The team was professional, efficient, and the quality of work exceeded expectations. Everything was completed on time and looks amazing. Highly recommend!!!!!wont be disappointed:)

Amir Malek 5 reviews
★★★★★

Had an amazing experience with Doorwin Services for my metal door installation. The quality of work, attention to detail, and professionalism were top notch from start to finish. Big thanks to Maksim for all his hard work and help throughout the process — everything was installed perfectly and the final result looks great. Highly recommend Doorwin Services if you want quality work done right.

yarin danan 9 reviews • 4 photos
★★★★★

Excellent service. I needed help with a broken window. They did everything quickly and efficiently. I recommend them

Oleksandr Branytskyi 4 reviews • 2 photos
★★★★★

Excellent service from start to finish. The work was completed professionally, quickly, and with great attention to detail. The technician gave us several options on how to strengthen and improve the glass unit, and we chose the best solution. Everything looks great now. Highly recommend!

Trevor Hickey 3 reviews
★★★★★

Excellent service and Excellent quality!!!

Tamara Sokolovska 7 reviews • 3 photos
★★★★★

I’m very satisfied with my experience with this company! True professionals work here — everything was done quickly, efficiently, and with great attention to detail. The staff are very polite, kind, and pleasant to deal with. The prices are more than reasonable, especially considering the high level of service — everything is top-notch. I had a broken window, and they handled the job perfectly. What impressed me even more is that they came at night when other companies refused to help. Highly recommend!