Newmarket Windows & Doors has served local homeowners for over 20 years. Our licensed crews handle installation, replacement, and repair for every room in the house, with a free upfront estimate and a workmanship guarantee on each job.



Whether you need one drafty window replaced or a full set of new doors installed, our team walks the property with you, prices the job honestly, and handles everything from removal to final cleanup without subcontractors.
Every installer on our team is licensed, insured, and trained specifically on window and door systems.
All workmanship is covered for as long as you own your home, with no fine print.
From the first measurement to the final seal, every choice we make is built around comfort, safety, and long-term value for your home.
Low-E glass and airtight seals cut drafts and heat loss, so your furnace and air conditioner work less all year.
Reinforced frames and multi-point locking hardware make forced entry significantly harder for intruders.
We use commercial-grade vinyl and hardware that resists warping, fading, and wear for decades, not seasons.
Properly sealed units stop cold spots and drafts, keeping every part of the house comfortable regardless of the season outside.
One licensed crew handles the measuring, the installation, and the follow-up, whether it's a single repair or a complete overhaul.
Windows
New-construction and retrofit windows fitted precisely for a tight, lasting seal.
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Windows
Swap drafty old units for ENERGY STAR-rated glass that cuts utility costs.
Repair
Cracked panes, failed seals, and stuck frames restored without a full replacement.
Doors
Front, side, and interior doors supplied and hung for smooth, secure operation.
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Doors
Sticking hinges, worn weatherstripping, and dated doors corrected or replaced.
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Sliding
Sliding and French patio systems installed to maximize light and easy access.
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From single-pane swaps to full-home upgrades, our certified installers measure, remove, and finish every opening themselves, backed by a lifetime workmanship warranty on the finished install.
Entry, patio, sliding, and commercial doors are supplied, installed, and repaired by the same crew from start to finish, with upfront pricing and no hidden add-ons once work begins.
Every job follows the same predictable process, so you always know what happens next and what it costs before any work begins.
Call, text, or send a message describing what needs fixing or replacing, and we'll set a visit around your schedule.
An installer, not a salesperson, measures every opening in person and emails a fixed price the same week.
Pick your styles, glass, colors, and hardware at your own pace, then lock in an install date.
Our crew arrives on schedule, protects your floors and furniture, and leaves the site cleaner than they found it.
Offices, storefronts, and multi-unit buildings throughout Newmarket rely on us for durable commercial doors, dependable hardware, and fast turnaround when a lock or closer fails.
Real reviews from homeowners across Newmarket and York Region who've had us install, replace, or repair their windows and doors.
"Our 1980s windows were down to single-pane glass. The new units cut the draft in our living room completely, and the crew never left a mess behind."
"Our sliding door had been stuck for months. Instead of pushing a full replacement, they diagnosed the track and fixed it in under an hour."
"Our sliding door had been stuck for months. Instead of pushing a full replacement, they diagnosed the track and fixed it in under an hour."
"Every window in our house got replaced over three days. The estimate matched the final bill exactly, which hasn't always been our experience with contractors."
"Our storefront door hardware failed on a Saturday morning. Someone was out within a few hours and had us locked up properly by afternoon."
"A cracked seal was fogging up two of our windows. They replaced just the glass instead of upselling new frames, which saved us real money."
Share a few details about the project, and we'll follow up within one business day.
Every estimate is free, every price is fixed before work starts, and every installer on our team is licensed and insured. Reach out today to get on the schedule.
647-670-1302These are the questions we hear most from homeowners before their first appointment, covering timelines, pricing, and coverage. If yours isn't listed, just ask when you call or text.
Have any question ?A two-person crew arrives at the scheduled time with your ordered materials already on the truck. We walk the property first to protect flooring and landscaping, then remove the old unit, prep the opening, and set the new window or door to spec. Most single openings are wrapped up in a few hours, and a full-home job is broken into stages so part of your house is never left exposed overnight. Before we leave, someone walks you through the finished work and answers any questions on the spot.
No. An installer visits your home, measures the openings involved, and puts together a written price based on exactly what your project needs, not a rough phone estimate. You'll see options for materials and glass along with the final number before deciding anything. There's no pressure to sign that day, and no charge whether you move forward with us or go a different direction. Most homeowners have a firm quote in hand within a couple of days of that first visit.
Yes, every installer we send out is licensed and carries their own insurance, and we don't hand jobs off to outside subcontractors. The person who measures your home is typically part of the same crew that comes back to install it, which keeps communication simple and accountability clear. If your condo board, insurer, or municipality needs documentation on file before work starts, we can provide it ahead of the appointment so there's no delay once the crew is scheduled to arrive.
Our home base is in Newmarket, and a large share of our work stays close by in towns like Aurora, Bradford, and East Gwillimbury. That said, distance alone rarely rules out a project. If you're further out, send us the details and we'll let you know honestly whether the scope and scheduling make sense, rather than quoting a job we can't properly support with follow-up service.
It depends on what's actually wrong. A failed seal, a cracked pane, or a sticky frame can often be corrected without touching the whole window, and that's usually the cheaper route if the frame itself is still sound. Rot, warping, or persistent drafts across multiple windows usually point to replacement being the smarter long-term choice. During your estimate, we'll look at the specific problem and tell you which option actually makes sense, rather than defaulting to whichever pays us more.