

Homeowners want a door that shuts quietly and a window that holds the heat. Business owners want an entrance that survives a thousand openings a week. Windows & Doors St. Catharines delivers both across St. Catharines, from residential window installation to commercial door repair and access control systems.
Different buildings, different demands, same standard of workmanship and the same clear pricing.
From a bedroom window to a high-traffic storefront, we scale the specification to the use.
Commercial work can run outside trading hours so your doors are not out of service at the wrong time.
Fixed quotes with itemised costs, suitable for approval or expense claims without follow-up questions.
Commercial-grade hardware where it earns its cost, and sensible choices where it does not.
Beyond the obvious improvement in appearance, four practical returns make the investment stack up.
Better glazing and better seals mean less heat lost in winter and less gained in summer, both of which cost money.
A property with recently replaced openings competes better and negotiates from a stronger position.
Weak frames and worn locks are the easiest way into most buildings. New units close that route.
A continuous perimeter seal stops the draught and cuts the noise, which is what actually makes a room comfortable.
Most door faults are alignment rather than damage, and replacing the door fixes nothing if the frame moved. Property owners in St. Catharines use Windows & Doors St. Catharines for door repair, covering diagnosis, hinges, latches, frames, and weather seals.
Swapping a door without addressing the threshold and seals just moves the draught somewhere else. Property owners in St. Catharines use Windows & Doors St. Catharines for door replacement, covering measurement, removal, fitting, thresholds, and weather seals.
Putting a door where none existed means framing, headers, and finishes, not just the door itself. Property owners in St. Catharines use Windows & Doors St. Catharines for new door installation, covering framing, headers, fitting, trim, and making good.
Most windows written off as needing replacement need hardware and seals instead. Homeowners in St. Catharines use Windows & Doors St. Catharines for window repair, covering hinges, handles, gaskets, glazing units, and honest replacement advice.
Replacement is worth it when the frame has gone; before that it is usually money spent early. Homeowners in St. Catharines use Windows & Doors St. Catharines for window replacement, covering survey, removal, fitting, insulation, sealing, and finishing.
Cutting a new opening is structural work before it is glazing work, and the lintel comes first. Property owners in St. Catharines use Windows & Doors St. Catharines for new window installation, covering lintels, opening formation, fitting, and making good.

It is why the sash closes with a solid, definite feel instead of the flex you get from an unreinforced frame carrying a heavy unit.
From new windows to entry doors, browse recent installations completed by our team.




Quality products, dependable service, and results that last — here is what sets our team apart.
Our double doors near Lakeport had drifted out of alignment and would not meet. Windows & Doors St. Catharines reset both leaves and replaced the centre seal.
The bathroom window at our place around Secord Woods had a rotten frame. Replaced entirely and finished so neatly you cannot tell where the old one ended.
A car reversed into the shopfront over by Downtown St. Catharines. They secured it within the hour and had the glass replaced within three days.
Our patio door just off Vansickle would not lock at all. The keeper had shifted with the frame. Corrected in under an hour.
I lost the only key to the house out toward Port Dalhousie. New cylinder fitted, three keys cut, and old locks retired the same visit.
We had the front windows replaced at our home near Merritton. The road noise reduction was the part I did not expect and appreciate most.
Our small unit around Grantham needed a keypad on the back entrance. Fitted cleanly and set up in about two hours.
The storm door over by Facer Street had been rattling all winter. New sweep, adjusted hinges, and it sits tight against the frame now.
The glazing in our front door just off Western Hill had gone cloudy. New sealed unit fitted and the hallway is noticeably brighter.
Our back door lock out toward Glenridge kept sticking in the frost. Serviced and adjusted, and it has been fine ever since.
Don't see your area listed? We likely still serve you — just ask.
Most standard vinyl windows in St. Catharines land between $650 and $1,400 installed, and the three things that move the number are the size of the opening, whether it is a slider or a casement, and the glass package you choose. A bay or bow window is its own quote and usually runs $2,200 to $4,500. We measure every opening and price it as its own line, so you can see exactly what adding or dropping one does to the total.
A typical eight to ten window home is one to two days on site, and a single entry door is a half day. We take out, fit and seal one opening at a time rather than stripping the whole house at once, so your home is never standing open and you can carry on around us. Custom sizes and special-order glass add 3 to 6 weeks before the install day, and you get that date when you order rather than when you chase us for it.
No. Windows & Doors St. Catharines measures and quotes at no cost and with nothing attached to it. A full house takes about 45 minutes: we check every opening, look at the frames and sills for rot or water damage, and tell you what genuinely needs replacing against what has years left in it. The written quote reaches you the same week, itemised opening by opening rather than as a single number.
Every window we fit meets or beats the ENERGY STAR requirement for this climate zone, with low-E coated, argon-filled sealed units as the standard rather than an upgrade you pay extra for. On a St. Catharines home replacing single pane or failed double glazing, most people notice the difference first in the draughts and the cold spots near the glass rather than on the bill. If your existing windows are still sound we will say so.
Our installation workmanship carries a 10 year warranty and Windows & Doors St. Catharines honours it regardless of which of our crews did the original fitting. The windows themselves keep their manufacturer warranty, which on the sealed units and vinyl frames runs 20 years to lifetime depending on the line you pick. If a seal fails inside that period we handle the claim with the manufacturer ourselves instead of handing you a phone number.
Yes, and we do it right through the St. Catharines winter. Each opening is out, in and sealed inside about an hour, so the house never drops more than a degree or two, and we work one room at a time with the rest of the home closed off. The foams and sealants we use are rated for cold weather installation. If the temperature or the wind makes it genuinely unsafe we move your date rather than push through it.
We remove and dispose of every old window and door, vacuum the work area and haul the debris away the same day — that is included, not a line added at the end. A straight replacement in an existing opening needs no permit in most St. Catharines municipalities. If the project changes the size of an opening or cuts a new one then a permit is required, and we prepare the drawings and file the application for you.
Windows & Doors St. Catharines carries full liability insurance and WSIB coverage, and we will send the certificates before any work starts if you would like them on file. Our own installers do the work — booked jobs are never passed to a subcontracted crew you have never met — and the person who quoted your job is there on the day. They walk every opening with you before packing up and show you how each new unit operates and locks.

We are here to help. Reach out and our team will get you a clear answer.
Contact UsRepairs, installations, and emergency work from Windows & Doors St. Catharines throughout St. Catharines, booked around your schedule rather than ours.
Give us a rough window that works and we will confirm a slot within it, usually the same day you ask.
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