Window Replacement in Port Perry, ON
Oshawa Prestige Windows & Doors handles window replacement in Port Perry, ON, from one rattling bedroom window to every opening in the house (an opening is just the hole in the wall the window sits in). We put in vinyl windows, wood-clad units for older homes, and new front and patio doors. Our own crew measures, pulls the old units, installs and cleans up. Nobody else touches your house.
The drive up Simcoe Street from Oshawa takes about half an hour, and it's one we make most weeks. We cover the whole township: Scugog Island, Greenbank, Blackstock, Caesarea and the farms between them. Searching window replacement Port Perry tends to turn up big-city chains. We're the crew that actually drives up. If you're weighing vinyl against wood-clad, we'll bring samples of both to your kitchen table. Down south we cover the rest of Durham Region too, out to Courtice.
$5M liability and WSIB
Insured crews on every job
Port Perry's Heritage District and Your Windows
Downtown Port Perry is a Heritage Conservation District, set up under Township of Scugog By-law 91-10. Inside it, any change to the outside of a building needs a Heritage Permit first. Windows count. The township asks you to book a pre-consultation with the Building Department, then apply online through Cloudpermit. In plain terms, budget a few extra weeks before the order goes in.
Do I need a heritage permit to replace windows in Port Perry?
Yes, if the house is inside the downtown Heritage Conservation District. Scugog requires a Heritage Permit before any exterior change there, windows included. Outside the district, a same-size replacement in a house normally needs no permit at all. Enlarging an opening, such as for a basement bedroom, needs a building permit anywhere in the township.
There's money to help, too. Owners in the district can apply for the township's Heritage Conservation District Grant: a 50/50 match, up to $10,000 per property, on approved work of $500 or more. In our experience the reviewers want the street to look the same afterwards. Same opening sizes, similar grille patterns, painted or wood-look frames. Wood-clad windows usually tick those boxes.
Lake Scugog Wind, Ice and Cottage Windows
Lake Scugog isn't a natural lake. A dam at Lindsay flooded the valley in 1834 and made Scugog Island in the process. Come January the lake turns into a sheet of ice dotted with fishing huts, and nothing slows the wind on its way across. It hits the west and north walls of lakefront homes first. Cold glass tells you.
For lake-facing walls we usually suggest triple pane glass. Add a Low-E coating and argon gas, and the inside pane stays warmer in a cold snap. A warmer pane means less frost and less condensation. On the sheltered side, double pane with good Low-E is fine and costs less. We'd rather tell you that than sell you triple pane where it won't pay.
Cottages Turned Into Year-Round Homes
Lots of places on Scugog Island and along the shore started life as summer cottages. Plenty still have thin aluminum sliders or single-pane glass that was never meant for February. Turn a cottage into a year-round home and the windows are the first thing that feels wrong. Most of the replacement windows Port Perry cottage owners order from us are insulated vinyl units sized to the existing openings. And before we quote, the estimator checks every sill for soft wood.
Century Homes Near Queen Street
Walk the streets off Queen Street and you'll see brick and frame houses from the late 1800s, some older. Their openings are tall, narrow and rarely square, so nothing off a store shelf fits. Every unit gets made to measure. When the old frame is soft, we go with full-frame replacement: frame and all comes out, back to the bare opening. The sill decides.
One more thing on old houses. Trim painted before 1960 often has lead paint, according to Health Canada, so our crew puts down drop sheets and plastic, keeps the dust down while the old frames come out, and bags the debris before it leaves the room. Reuben Crandell's 1821 house still stands on King Street. This town has had a long time to stack up paint layers.
Window Replacement Scugog: Island, Greenbank and Blackstock
Outside town it's acreages, farms and long driveways. We group rural visits, so a quote on Scugog Island and another in Greenbank can land on the same afternoon. Every opening gets measured twice: once for the quote, then a check measure before anything is ordered. Why bother? Because the second visit catches what a tape misses, like a farmhouse frame that has settled out of square. Our crews do about 1,100 openings a year across Durham Region, and that habit saves more of them than anything else we do.
Rural homes also tend to have finished basements with small windows. If a basement room is a bedroom, the Ontario Building Code asks for an egress window with at least 0.35 square metres of open area and no side under 380 mm. That often means a bigger opening, which needs a building permit. Tell us early if that's on your list.
Window and Door Services We Offer in Port Perry
Six jobs we quote again and again between the lake and Highway 7A.
Wood-Clad Windows
Wood on the inside, a weatherproof aluminum or vinyl skin on the outside. It's the closest match to the original look of a Victorian home near Queen Street, and the skin means no scraping or painting outside. Wood-clad costs more than vinyl, so we often use it on the street side and vinyl at the back.
Casement Windows
A casement window is hinged on the side and cranks open like a door. When it closes, the sash presses into the seal on all four sides, so it closes tighter than any slider. That matters on a windy lakefront wall. Casements also catch a breeze off Lake Scugog better than a window that slides.
Picture and Bay Windows for Lake Views
A picture window doesn't open, which lets it be big and airtight. For a lake view, we often pair one with two opening casements on the sides. A bay window pushes the whole thing out past the wall and makes a small seating nook. Our bay and bow windows page has the options.
Double Hung Windows
A double hung window has two halves that slide up and down, and both tilt in so you can wash the outside glass from the room. They suit the tall, narrow openings of older Port Perry homes and keep the classic look from the street. We set them with low-expansion foam, which seals the gap without bowing the frame.
Entry Door Replacement
A new entry door with a multipoint lock locks at the top, middle and bottom with one turn of the handle. Fibreglass doors can be stained to look like oak, which suits a heritage street. Add sidelites to bring light into a dark front hall.
Sliding Patio Doors
Old patio doors leak cold air at the bottom track and get hard to slide. A new sliding patio door rolls on fresh rollers and closes tight against the frame. It's a one-day job for most homes, inside trim included.



Port Perry Window Replacement FAQ
Can I get a grant for windows in downtown Port Perry?
Yes, if your property is in the downtown Heritage Conservation District. Scugog's Heritage Conservation District Grant pays up to 50% of approved work, to a maximum of $10,000 per property, for projects of at least $500. The work has to be approved before it starts, and the grant is paid once it's finished.
How far is Port Perry from your crews?
About 30 minutes north of Oshawa, straight up Simcoe Street. We're in Port Perry most weeks, so coming up here is routine, not a special trip. The whole township is covered: Scugog Island, Greenbank, Blackstock, Caesarea and the farms in between. Rural quotes get booked in groups to keep the schedule tight.
What glass is best for a lakefront home on Lake Scugog?
Triple pane. For the walls that face the lake, triple pane glass with a Low-E coating does the most good, because it keeps the inside pane warmer when the wind comes across the ice and that means less frost and less fogging at the edges. Sheltered walls? Good double pane glass is usually enough, and it costs less.
Can you replace windows at a cottage in winter?
Yes. We install all year, one opening at a time. Each hole in the wall is open for a few minutes, then the new unit goes in. Floors get covered and the room gets closed off, so the rest of the cottage stays warm. Honestly, winter is often easier to book than spring.
How long does a heritage window order take in Port Perry?
Plan for the permit and the factory. Heritage review in the district adds time before anything is ordered. After that, most custom vinyl takes our suppliers 6 to 10 weeks from order to install, and wood-clad and special shapes run longer. We give you a realistic date once the permit is in hand.
Do basement windows need a permit in Scugog?
A same-size replacement usually doesn't. If you're enlarging a basement window so a bedroom meets the egress rule, that's a change to the opening, and it needs a building permit. The Ontario Building Code asks for 0.35 square metres of open area with no side under 380 mm.

Book a Free Measure for Your Windows and Doors
Tell us how many openings and roughly how old the house is. We book a free in-home measure and give you a written quote.
Or call (289) 274-1333
