Windows in Mississauga’s two heritage districts: what the plans actually say

Is your home in a district? Old Port Credit Village and Meadowvale Village boundaries

Mississauga has two heritage conservation districts under Part V of the Ontario Heritage Act. Each has its own plan, and each plan has a section on windows and doors.

• Old Port Credit Village runs from the Lakeshore Road West right-of-way south to the lake, between the Credit River and Mississauga Road. The revised plan took effect on January 29, 2020. Much of Port Credit, including everything north of Lakeshore Road, is outside the district; the Port Credit area page covers the rest.
• Meadowvale Village is the small historic village in the Credit River floodplain. Its plan was revised in 2014. It is not the same as Meadowvale, the larger 1970s neighbourhood built around the lakes.

If you are not sure whether your address is inside a boundary, ask heritage planning staff through the City’s heritage properties page. Age alone doesn’t put a house in a district, and being outside one doesn’t rule out a designation of its own.

Meadowvale Village: retain wood windows, colourless glass, wood storms

The Meadowvale Village plan is specific. Its window guideline begins: “Original wood windows should be retained and conserved, wherever feasible.”

Where a window can’t be saved, the replacement should:

• keep the existing opening
• use colourless glass
• use wood-faced muntins, the bars that divide the glass into panes

New storm windows should be wood, with colourless glass, at the same scale and design as the originals.

The plan makes one practical allowance: windows that can’t be seen from the public realm may be made of materials other than wood. That can matter at the back of a house.

Doors follow the same idea. Original doors should be kept, and French patio doors are permitted where they can’t be seen from the public realm.

Clearance to Alter vs Heritage Property Permit in Meadowvale Village

The Meadowvale Village plan sorts window and door work into two approval paths, depending on the job.

A new or larger opening also needs a City building permit (City permit page). The order that saves trouble: heritage approval first, then the building permit if one applies, then the order for the window. A custom wood window ordered before approval may not match what staff approve.

Old Port Credit Village: protect sash and glazing; storms done right

The Old Port Credit Village plan asks owners to “protect and maintain original window openings as well as distinguishing features such as hardware, materials, surrounds, frame, shutters, sash, and glazing.” It discourages changing the size or type of an opening, and removing muntins.

On storm windows it is precise. “Exterior wood storm windows or contemporary interior magnetic storm glazing” are acceptable, and “exterior-applied aluminum storm windows are discouraged.”

• A wood storm goes on the outside, as the originals did, and can be made to fit each opening.
• An interior magnetic storm is a clear panel held to the inside of the window frame by a magnetic strip. It leaves the outside of the house unchanged.

For doors, the plan asks owners to conserve “doors, glazing, lighting, steps and door surrounds” on the principal elevations, the sides of the house that face the street. If the glass in a door insert or sidelight has fogged, it can often be replaced while the door stays; see door glass replacement. A new storm door changes how the entry looks, so ask staff before you choose one.

Repairs that need no approval: worn hardware and maintenance

The Old Port Credit Village plan exempts regular maintenance and repairs on houses, and the replacement of worn hardware. For an old wood window, that usually takes in:

• a sash lock, lift, pulley or hinge that has worn out
• fresh putty where the old glazing has cracked or fallen out
• paint, and weatherstripping around the sash

If you are unsure whether a job counts, a short email to heritage planning staff settles it before anyone starts.

In Meadowvale Village, the plan’s quick path is the Clearance to Alter described above; ask staff how they treat routine repairs. Window repair covers the hardware and sash work a pro can do.

The Designated Heritage Property Grant (check 2026 status)

The City runs a Designated Heritage Property Grant that pays a share of eligible costs for conservation work on designated properties, where the project follows best practice for protecting a heritage property. Its page describes intake in batches between February and September.

Two cautions before you count on it:

• The page was last updated in early 2025, so confirm that the grant is running this year.
• Detailed eligibility sits in separate guidelines. Ask whether window repair and wood storm windows qualify, and whether your district property is eligible.

Heritage planning staff can answer both.

Outside the districts: Streetsville, Part IV designations and 2027 listing changes

The two plans apply only inside their boundaries. Other older houses can still have heritage status.

• Designated on its own (Part IV). A single property can be designated under Part IV of the Ontario Heritage Act. If yours is, ask staff before changing original windows or doors.
• Listed but not designated. Municipalities have until January 1, 2027 to designate long-listed properties or take them off the register (summary of the provincial change). A listed older house could be designated before then.
• Streetsville. The old village core along Queen Street is not one of the City’s two heritage conservation districts. Individual houses there may still be listed or designated. The Streetsville area page has more.

The City’s heritage properties page is the place to check a specific address.

Finding a pro who repairs wood sash and builds wood storms

The plans favour work that not every window company takes on: repairing wood sash, reglazing with putty, and building wood storms to fit. We connect you with an independent local professional who does that kind of work, where one covers your address. The pro quotes and does the job.

When you send a request, say which district the house is in, and ask for repair and replacement to be quoted separately so you and heritage staff can compare. Useful photos: the front windows from the street, a close-up of one sash corner, and any storm windows already on the house. For the wider trade-off, the repair-or-replace guide goes through it step by step.

In a heritage district? Send photos of the front windows and a pro familiar with wood sash will follow up.