New patio doors · Oshawa
Choosing and installing a new patio door
Replace a patio door when the door itself is finished, not because a roller gave out. When the frame, sill or panels are done, a new door fitted and sealed properly is the fix, and the details matter: style, glass, permit and, in a condo, approvals. We connect you with independent local pros who supply and install patio doors, and you compare their quotes.
- Replace only when the door is done
- The houses-only permit rule explained
- Rebate facts linked to the source
Repair or replace
Repair or replace: signs the door itself is done
Plenty of patio doors that feel finished only need rollers, a track or a lock. These are the signs that point past repair. For other door problems, start at the doors and screens overview.
Rot or cracks in the frame or sill
Soft bottom corners, a split sill or stains on the subfloor mean water is getting in.
Panels that won't sit square
A twisted frame keeps the door drafting and sticking whatever the adjustment.
Several failures at once
One fogged unit is a glass job. Fog, drafts and a tired frame together make it a door job.
You want a different door
A wider opening, a garden door instead of a slider, or better glass. A fair reason too.
Styles
Sliders, garden doors and multi-panel options
Around Durham, a patio door usually means a slider, and a garden door a hinged door, often beside a fixed glass panel.
Doors come in stock sizes or made to measure; older or altered openings often need the latter. The pro measures the rough opening, not the old door. Keeping the same opening keeps a house out of permit territory. Windows due too? See replacement windows.
Two-panel sliders
No swing room needed, which suits decks, balconies and tight dinettes. The rollers and track take the wear.
Hinged garden doors
Seals by pressing shut, like a front door, but needs clear floor space to swing.
Three- and four-panel doors
For wide openings: more glass, and more hardware to keep adjusted.
Glass and efficiency
Glass and efficiency: what the ENERGY STAR label tells you
The ENERGY STAR label on a door covers the whole unit, glass and frame. The current ENERGY STAR Canada specification sets one national threshold, with no regional zones.
Ontario's Home Renovation Savings Program has offered a rebate per rough opening on ENERGY STAR certified doors, generally with a home energy assessment. It covers complete doors, not new glass. Confirm current rules on the program site.
Ask what's in the glass
Ask whether it has a low-E coating, gas fill or triple pane, and whether the whole door is labelled.
Safety glass throughout
Sliding door glass must be tempered or laminated. The quote should say which.
The screen
A garden door has nowhere for a sliding screen; see screen doors for retractable options.
Permits
Same opening or bigger: permits in Oshawa
On a house in Oshawa, swapping a patio door for one of the same size and type doesn't need a building permit. A new door, or a replacement of a different size, does. That's the City's own permit checklist, and the exemption is written for houses only. On a condo, an apartment building or a building with a shop downstairs, check with the City before work starts.
Outside Oshawa, each town issues its own permits: Whitby, Clarington for Courtice and Bowmanville, Ajax and Pickering. Ask the pro, or check with your town. Zoning still applies where no permit is needed.
What affects the quote
What drives the price: size, panels, glass, frame, trim and removal
An eight-foot door isn't just a six-foot door with more glass. Quotes rest on:
- Size, and stock or made to measure
- Number of panels, and slider versus hinged garden door
- Glass: double or triple pane, coatings, blinds or grilles
- Frame material and colour, inside and out
- Removing the old door, and any subfloor or sill repair
- Trim, exterior capping and sealing
- A permit, if the opening changes size
Send the opening's width and height with a photo. The pro re-measures before ordering.
Condos and balconies
Condos and balconies: approvals before work starts
In a condo, the balcony door may not be yours alone to change. Start with your declaration and your property manager. Under Ontario's Condominium Act, an owner's alteration to the common elements has to be approved by the board before work begins, and is usually recorded in a section 98 agreement (a plain-language explainer).
Because the City's same-size exemption stops at houses, the building should also check with the City about a permit. If you rent, report a door that won't close or lock to your landlord or property manager in writing. The same approval questions apply to a condo townhouse's front door.
Questions
Patio door replacement questions
Explore your options
Related door pages
Local pros replace patio doors across Oshawa and Durham, including North Oshawa, Whitby, Courtice, Bowmanville and Ajax.
Measure the opening and send a photo
Width, height and one photo from inside are enough to start. We pass them to local pros who install patio doors, and we follow up so your quotes actually arrive.