The window and door crew Ajax homeowners keep calling back.
Ajax Windows & Doors puts one crew on your project from the first measurement through the final seal, and that crew is on our payroll, not a subcontractor’s. We’ve replaced more than 8,500 windows and doors for families across Ajax, Ontario, backed by a lifetime workmanship warranty and Energy Star certified products.
- No-cost in-homeestimate
- 20+ yearsinstalling in YorkRegion
- Certified Energy Starpartner
- Backedby a lifetimewarranty
Request your in-home estimate
No pressure, no obligation, just an honest look at your project. We cover Ajax and all of York Region, and we reply within one business day.
Two decades of window and door work, right here in Ajax.
Ajax Windows & Doors is a family-run operation that has served this community since 2003. Every project, whether it’s a single patio door or a full-home window replacement, is handled start to finish by our own certified installers. We don’t hand your job off to a subcontractor.
We keep the process simple: an honest in-home measurement, a fixed price with no surprise add-ons, and workmanship we’re willing to guarantee for as long as you own your home. That approach is how we’ve earned the trust of thousands of homeowners across York Region, one referral at a time.
Why Ajax homeowners keep choosing our crew.
Every homeowner gets the same crew from quote to clean-up, not a rotating cast of subcontractors.
Local roots, not a call center
Our installers live in this community and answer the phone themselves. You're never routed to a national dispatch line.
Decades of hands-on experience
We've worked on homes across Ajax, Pickering, and Richmond Hill long enough to know exactly how local frames, brick, and weather behave.
You won't need to call anyone else
If a seal fails or a frame settles five years from now, we're the ones who show up to fix it at no charge, not a manufacturer's call center.
Every product meets Energy Star standards
We only install glass and hardware that meets the highest efficiency tier, which means fewer drafts, less condensation, and a quieter home year-round.
Protected paperwork, not just promises
Every installer carries WSIB coverage and we hold $5 million in liability insurance, so a work-related accident on your property is never something you have to cover.
No revolving door of subcontractors
Ask for the installer who quoted your job, and you'll get the same person on-site during the install and back afterward if anything needs attention.
Every job we take on, from a single pane to a full house.
Every job we take on, from a single pane to a full house.
Window Installation
Custom-fit windows built to your exact opening and installed with care.
Window Repair
Stuck sashes, broken seals, or drafty frames fixed without a full replacement.
Window Glass Replacement
Cracked or fogged glass swapped out fast, keeping your existing frame intact.
Door Installation
Front, back, and interior doors set square, sealed, and ready for years of use.
Door Replacement
Old, warped, or drafty doors swapped for a properly fitted new unit.
Door Repair
Sticking latches, sagging hinges, and worn weather stripping repaired on the spot.
Patio Door Repair
Tracks, rollers, and seals restored so your slider glides and locks like new.
Sliding Door Installation
Wide-glass patio doors installed level, sealed, and built for daily use.
Quality materials, matched by careful installation.
We source Energy Star certified windows and doors from established North American manufacturers, and every unit is custom-built to your exact opening. Whether you’re after vinyl, wood-clad, fiberglass, or steel, you get a product matched to your home and your budget, not whatever happens to be sitting in a warehouse.
That product is backed by our lifetime workmanship warranty, covering fit, finish, seals, and anything related to how it was installed for as long as you own the home. Add in the manufacturer’s own product warranty, and you’re covered from both directions.
Here's what happens after you call.
No sales scripts, no change orders you didn't approve, just steady progress toward a finished install.
Better windows and doors pay you back over time.
Swapping out old, drafty units for Energy Star certified windows and doors can lower your heating and cooling costs by up to 25%, and several rebate programs exist specifically to help cover the upfront cost.
- Canada Greener Homes: homeowners who qualify walk away with up to $5,000 toward the cost of the project.
- Enbridge Home Efficiency Rebate: layer it on top of Greener Homes and the total rebate climbs even higher.
- Energy Star Most Efficient: this is the highest rating the program offers, and it’s what we install by default, not an upsell.
- Year-round comfort: this is the highest rating the program offers, and it’s what we install by default, not an upsell.
380-plus reviews later, we're still sitting at 4.9 stars.
These are unedited reviews from actual customers.
Serving Ajax and the communities around it.
We’re based in Ajax and travel throughout York Region and the surrounding GTA for every estimate and every install. Most requests get booked within 48 hours, and we bring the whole process to your door.
- Ajax
- Unionville
- Thornhill
- RichmondHill
- Stouffville
- Aurora
- Newmarket
- Vaughan
- Pickering
- Scarborough
- North York
What Ajax homeowners ask us most.
Still have a question? Call 905-556-1324 and we'll give you a straight answer.
Your free estimate is one call away.
No pressure, no scripted sales pitch. One of our Ajax-based installers comes to your home, takes real measurements, and walks you through your options, usually within 48 hours of your first call.
Get in touch
- Phone
905-556-1324 - Showroom
Harwood Ave S #55, Ajax ON L1S 2J1 - Hours
Mon–Fri 8am–7pm · Sat 9am–5pm