Get Your Quote for Patio Door Installation
Fill the form below to inquire about Ontario Door & Window Pros's Patio Door Installation in Toronto.
Reach Ontario Door & Window Pros at (289) 273-3287 about Patio Door Installation in Toronto and get the threshold set level.
Fill the form below to inquire about Ontario Door & Window Pros's Patio Door Installation in Toronto.
We've seen every issue a patio door installation can run into. Here are the problems our clients call us about most often.
Drafts usually mean the weatherstripping has compressed unevenly or the frame has shifted out of square over time. Left alone, this drives up heating costs and leaves cold spots near the door every winter. We install a new frame with properly sealed weatherstripping matched to the door type and climate.
Fogging between panes means the seal on a double-pane or triple-pane unit has failed and the insulating gas has escaped. Once this happens, the glass unit cannot be repaired and needs replacement. We install new sealed glass units and confirm proper glazing before the job is complete.
A sticking or dragging slider is usually caused by worn rollers, a bent track, or a frame that has racked out of square. Continuing to force it can damage the track permanently. We assess the frame and hardware together and correct the root cause during installation, not just the symptom.
Leaks around a patio door frame almost always trace back to missing or improperly sequenced flashing during the original installation. Left untreated, this can rot the framing behind the wall long before it is visible from inside. We install flashing and trim in the correct order to keep water out for good.
Wood-framed doors that were never properly sealed or that sat through repeated water exposure eventually swell, warp, or rot at the base. This usually means the door no longer closes or seals properly. We replace the full frame and recommend a moisture-resistant material for the new installation.
Upgrading from a single door to a wider slider or multi-panel system requires cutting studs, reinforcing the header, and sometimes engineering a new lintel to support the wider span safely. Skipping proper reinforcement risks sagging over time. We handle the structural work and the finished installation as one coordinated project.
A door that won't latch securely is both an inconvenience and a security risk. This is usually caused by a shifted frame or worn hardware rather than a defect in the door itself. We diagnose the exact cause and correct the frame alignment or replace hardware as needed.
A rushed or inexperienced installer often leaves a frame slightly out of square, which shows up over time as sticking, drafts, or premature hardware wear. Correcting a bad install usually costs more than a proper one from the start. We assess what went wrong and reinstall the door correctly.
An aging or poorly sealed patio door is one of the most common hidden sources of heat loss in a home. Homeowners often trace unexplained increases in heating costs back to a door that looks fine but no longer seals well. We install energy-efficient glazing and proper weatherstripping to close that gap.
Our old sliding door let in cold air every winter no matter what we tried. Ontario Door & Window Pros replaced it with a vinyl slider and the difference was immediate. The install crew was tidy and finished in one day.
We wanted to go from a single door to a wider three-panel slider and I was worried about the structural work involved. The team explained exactly what needed to change with the header before starting and the finished result looks fantastic.
The installation itself was excellent and the new door operates smoothly. It did take about half a day longer than quoted because they found some rot in the old sill, but they explained it clearly and the price stayed fair.
We upgraded to a fiberglass French door and could not be happier. Ontario Door & Window Pros walked us through material options honestly instead of pushing the most expensive choice, and the finished install is flawless.
Our last patio door was installed by someone else and never sat quite right. This crew found the frame was slightly out of square, corrected it properly, and the door has worked perfectly since. Wish we had called them the first time.
I got quotes from three companies and this one was the clearest about what was included. The site visit before the quote made a real difference. Installation was quick and the team cleaned up completely before leaving.

Reach out by phone or fill out our quick online form. We'll talk through what you need and find a time that works for you.
A licensed technician visits your home, pinpoints the issue or reviews your options, and gives you a clear, upfront quote.
We complete the work efficiently and tidily, treating your home with respect and keeping you informed at every step.
We walk you through the finished work, answer any questions, and make sure everything is running exactly as it should.
Reach out to Ontario Door & Window Pros for door, window, and glass repair, replacement, or installation across Toronto.
Call, or send a message through the form below, either way, we'll get back to you quickly.
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