Markham's mix of established neighbourhoods and newer subdivisions concentrates demand for energy-efficiency upgrades and rebate guidance across York Region.
4.9 / 5
150+ Google reviews
Energy Star Zone C
Certified for Climate Zone 6
In-House Crews
No subcontractors, WSIB insured
10-Year Labour Warranty
Plus manufacturer warranties
Four things bring GTA homeowners to us. Here's what's actually going on behind each of them.
Cold air rolls along the floor and the furnace runs longer every winter.
Worn weatherstripping and racked sashes stop compressing. A properly sealed Energy Star Zone C unit closes the pathway completely, which is the change most homeowners notice first.
Haze and mineral staining you cannot wipe off, trapped between the panes.
The perimeter seal on the insulated glass unit has failed and the argon has escaped. If the frame is sound we swap only the glass unit, which costs a fraction of full replacement.
U-factor, Zone C, Greener Homes, HER+, and no clear answer on real installed cost.
We state the U-factor per opening in writing, price each window individually, and explain the rebate assessment sequence before you commit rather than after.
You meet a salesperson, then a crew you have never spoken to arrives.
Every installation is carried out by our own in-house crews. The company that measured the job is the company that installs it and warranties it for 10 years.
We diagnose first and quote second, including telling you when a repair beats a replacement.
Book a free assessmentMarkham's mix of established neighbourhoods and newer subdivisions concentrates demand for energy-efficiency upgrades and rebate guidance across York Region.
Every service below is the same specification we install everywhere else in the GTA. If you're comparing options first, our overview of Energy Star Zone C window and door replacement across the Greater Toronto Area covers the ratings, warranty and pricing approach that apply to Markham projects.
Supply and in-house installation of vinyl, casement and triple-pane windows certified to Energy Star Zone C.
Authorized European tilt-and-turn window systems from Schuco, Reynaers and Cortizo with best-in-class thermal and security performance.
Repair of foggy, drafty and failing windows, including insulated glass unit (IGU) replacement, before you commit to full replacement.
Steel and fiberglass entry doors with multi-point security, decorative glass options and thermal-break sills, installed by in-house crews.
Sliding, garden and premium European bifold / lift-and-slide patio door systems built for GTA winters.
Five stages from first phone call to warranty registration. No surprises in the middle.
About 45 minutes. We measure every opening at your Markham home, check frame and sill condition, and confirm whether retrofit or full-frame is right for each one.
Itemised pricing per opening with the glazing package, U-factor and installation method stated. You can compare it line by line against any other quote.
Units are built to your measurements. We confirm the delivery date before booking the crew, so your home is never opened up waiting on product.
Our own crews remove, flash, insulate, seal and trim each opening. Most homes in the area are complete in one to three days with the site cleaned each evening.
We check operation and locking on every unit with you, hand over care instructions, and register your 10-year labour warranty.
Tell us what's happening at the window and we'll give you the honest answer, in writing, before you spend anything. No pressure, no obligation.
Markham jobs route off Highway 407, the 404 and Highway 7. Newer Cornell and Berczy Village streets have narrower frontages and rear laneways, so we confirm access and staging at measurement rather than on install day.
Established Unionville and Markham Village properties usually have more room to work. Most whole-home projects finish in one to two days, with larger homes running to three.
1990s–2000s subdivision homes in Milliken Mills and Berczy Village mostly need glass-unit replacement or retrofit inserts, since original frames are typically still square.
Cornell's newer laneway-access homes have tall, narrow openings and tight staging. Installs are quick but require planned access.
Unionville and Markham Village heritage-adjacent properties are more varied. Wood-framed openings here often justify full-frame brick-to-brick work to correct decades of sill deterioration.
Rated 4.9 out of 5 across 150+ reviews.
"They quoted three options instead of pushing the most expensive one. We went with retrofit units and the house is much warmer."
"New patio door and four windows at the back. Clean install, sealed properly, and finished in a day."
Unionville, Thornhill, Milliken Mills, Cornell, Markham Village, Berczy Village and the surrounding York Region areas.
We explain eligibility and the required pre- and post-retrofit energy assessments, and we make sure the products we quote are Energy Star Zone C certified so they qualify.
$600–$1,200 per vinyl window installed, with triple-pane upgrades adding roughly $900–$1,800 per opening. Whole-home projects generally run $8,000–$18,000.
Yes. Cornell-style laneway homes need access confirmed in advance, which we do at the measurement visit so install day runs without surprises.
One to two days for most Markham homes. Larger properties with more openings run to three.
Ask us during your free in-home measurement, or get in touch and we'll answer it straight.
Free in-home quote across Markham. Itemised pricing per opening and a 10-year labour warranty on every installation.
