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Patio & Sliding Door Repair

A sliding patio door that drags, sticks, won't lock or lets in drafts usually needs a repair, not a new door. Window Whiz services patio door rollers, tracks, handles and locks, can fit a lock that works with a key, reseals drafty doors, and replaces foggy or broken patio door glass. When a door is beyond repair, we install new patio door systems.

What we fix

  • Doors that drag or are hard to slide
  • Worn or broken rollers
  • Damaged or dirty tracks
  • Handles and locks, including keyed locks
  • Drafts and worn weatherstripping
  • Foggy or broken patio door glass

Why sliding doors get hard to open

Most sliding doors ride on small rollers along a track. When the rollers wear out or the track is dirty or damaged, the door drags, jumps the track or takes two hands to move. New rollers and a cleaned or repaired track usually make it glide again.

Locks, handles and security

A patio door that won't latch is a security problem. We repair or replace handles and locks, and we can fit a lock that works with a key.

Foggy or broken patio door glass

Patio door panels are sealed units. If one fogs up or breaks, we replace the glass with a new tempered sealed unit and keep the door. Foggy window repair explains why sealed units fail.

When it's time for a new door

If the frame is damaged or the door is failing in several ways, a new system can be the better buy. We've installed a CLEARVIEW aluminum patio door system for an apartment in Guelph, and we'll tell you honestly whether repair or replacement makes more sense.

Not sure what you need? Send us a photo and we'll tell you.

How it works

  1. 1

    Send a photo

    Send photos of the door, the track and the handle, and tell us what it's doing.

  2. 2

    We diagnose

    We work out whether it needs rollers, track work, hardware, weatherstripping or glass, and quote the repair.

  3. 3

    We fix it

    Most patio door repairs can be booked within one to two weeks; new glass takes two to four weeks to be made.

Recent jobs

See all projects
CLEARVIEW Aluminum Patio Door System in Guelph, Ontario

CLEARVIEW Aluminum Patio Door System

Guelph

A CLEARVIEW aluminum patio door system we installed for an apartment in Guelph, ON.

What customers say

  • “Extremely professional, messaged him urgently to get my window and patio glasses repaired and he came out the next day! I was given an estimate that the windows would take 4 weeks & they came earlier! 5/5 recommended and great prices.”
    BrianneGoogle Review
  • “EXCELLENT SERVICE!!!! I recently moved and I was needing a service call with some issues with my back sliding door. From the first time I spoke with Brett I knew I was in good hands. Not only did he come out the same day, he was prepared, super friendly and efficient. You can tell he loves what he does and his work clearly shows for it. If I could give more stars I would.”
    Alana CLocal Guide • Google ReviewNov 6, 2024

Common questions

Why is my sliding door so hard to open?

Usually worn rollers or a dirty or damaged track. Replacing the rollers and cleaning or repairing the track fixes most doors.

Can you replace the glass in my patio door?

Yes. We replace foggy or broken patio door glass with a new tempered sealed unit and keep the existing door.

Can you add a key lock to my patio door?

Yes. We can fit a lock that works with a key.

Do I need a new patio door?

Not usually. Rollers, tracks, handles, locks, weatherstripping and glass can all be replaced separately. If the frame itself is damaged, we can install a new door system.

Send us a photo, get honest options

Tell us what's going on and upload a photo. We reply to routine requests within 24 hours.

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