Window Panes: Single, Double and Triple-Pane Glass
Updated October 12, 2026
Compare single, double and triple-pane glass, Super Spacer and whole-window ratings before choosing your windows.
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Make your Unionville home look and feel better with made-to-order windows and exterior doors. Falcon WD measures each opening and provides a clear written estimate before installation.
Schedule your FREE, no-obligation in-home estimate today.
Unionville homes are not one template. A front-facing window, a kitchen casement and a patio opening can need different sightlines, ventilation and finish. We review the frame, sill, trim and exterior connection before presenting options that belong on your home, not just on a product sheet.
If a property is protected, exterior window or door replacement may need a separate Markham heritage permit. Original features may be better repaired or replaced to an approved design. Product selection follows the requirements for the specific address.
Fogged glass, difficult sashes and drafts call for a look at the whole opening. Choose from operable and fixed styles, then compare sightlines, ventilation, colour and complete-product performance for each room.
Select ENERGY STAR certified models when they fit the specification. Double- and triple-pane glazing, Low-E coatings and hardware vary by product. We compare the complete window’s U-factor and Energy Rating rather than promise a fixed household saving.
The estimate explains whether a sound existing frame can remain or whether deeper frame and sill work belongs in the scope. The final choice follows measurement and, where applicable, property-specific approvals.
Choose a steel or fiberglass entry system around the measured opening, with panel, glass, sidelites, finish and hardware shown together. For a sliding patio door, check panel direction, screen travel, threshold and its connection to the floor or deck.
The written scope should describe removal, sill inspection, sealing and finishing. Markham lists same-size rough-opening replacement among work that does not normally need a building permit; changed openings and protected properties need separate checks before ordering.
See the products on real Ontario homes, then choose what fits your Unionville property.
KNOW WHAT YOU WANT TO CHANGE? LET’S MAKE IT SPECIFIC.
Show us the windows or doors you want assessed. We’ll measure the openings, discuss options and provide a written scope for your home.
See the products, installation work and finishing details before you commit. The written estimate should show how each selected window or door will fit its opening.
Discuss your home’s openings with a team focused on residential windows and exterior doors, from the first measurements through the selected installation scope.
Read the homeowner feedback shown below and check the published third-party profiles while you decide whom to invite into your home.
Compare qualifying models by complete-product ratings, operating style, glass package, colour and hardware. Certification applies to the selected model.
Look for removal, insulation, perimeter sealing, capping, trim, cleanup and disposal in the quotation wherever those tasks are included.
Compare how each style opens, where it fits and how it looks beside neighbouring units. Final dimensions, glazing, hardware and finish are selected for the actual opening.
Fixed glass brings daylight and a clear view; pair it with an operating unit when you also want ventilation.
A projecting feature needs a full review of support, capping and interior finish.
Choose a smooth or wood-look finish with glass and hardware suited to the entrance.
Good product choices work best when sizing, operation, sealing and finish are planned together at the existing wall.
Compare whole-window ratings, not only glass specifications, to find a suitable model for the room.
Plan insulation and continuous perimeter sealing as part of the installation scope.
Review exposure and shading with the selected glass package; no single choice fits every orientation.
Check handle reach, sash movement and screen access for the people who use each room.
Choose compatible locks and hardware as part of the specified window or door system.
Review the sill and exterior connection so water is directed away from the opening.
Coordinate frame colours, grille pattern, door glass and hardware across visible openings.
Check interior trim, blind clearance and furniture before finalizing the unit.
Approve dimensions, handing, glazing and finish before the products are ordered.
Know what happens between the first home visit and the finished installation.
1
Discuss your priorities and inspect the openings, sill, trim and access.
2
Confirm styles, glass, colour, hardware and final dimensions for each selected opening.
3
Review the written scope and any required property approvals before products are ordered.
4
Complete the contracted fitting and finishing, check operation and review the result.
READY TO SEE WHAT FITS YOUR HOME?
Tell us which Unionville openings you want to change. We’ll help you compare products and prepare a written in-home estimate.
Answers for planning a measured replacement. Your approved quotation and written product documents govern the final project.
No. A Unionville address alone does not establish heritage status. Check the specific property against Markham’s district map and heritage register before selecting exterior products.
Approval depends on the property’s status and proposed design. Markham’s district plan favours conserving original windows and, when replacement is appropriate, respecting their material, style and proportions. Check with Heritage staff before ordering.
Markham lists replacement without a change to the rough-opening size among work that does not need a building permit. Altered openings or uncertain structural work need a City check. A heritage permit is a separate question.
Not always. Compare complete-product ratings, operating style, orientation and budget for the actual room. The selected model, not its pane count alone, determines certified performance.
Yes. Each measured doorway can have its own product specification and installation line item in one written project scope.
Look for each selected product and the included removal, insulation, sealing, trim, cleanup and disposal. Ask how concealed damage or a scope change would be documented.
Opening size and count, style, glass, colour, hardware, access and installation method all affect the price. A measured written quote shows what is included for your home.
Coverage depends on the selected product and contracted installation work. Review the applicable written manufacturer and installation terms before ordering.
Trustindex verifies that the original source of the review is Google.
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Trustindex verifies that the original source of the review is Google.
I wanted to highly recommend the services of Falcon Windows and Doors. They installed my new windows last week, and I couldn’t be happier with the results. The windows are beautiful, high-quality, and have made our home noticeably warmer and quieter — we now hear much less noise from the street.
From start to finish, Andriy’s service was impeccable. I sent an email early on a Saturday morning, and he reached out the same day to schedule a visit and provide a quote. We placed the order, and within just five weeks, the windows were ready for installation.
On installation day, three very polite and professional gentlemen arrived early. They carefully covered all the floors to prevent any damage and worked efficiently and nonstop until everything was completed. They also cleaned up thoroughly afterward.
Andriy personally came on the day of installation to ensure everything was in perfect order.
I truly recommend Falcon Windows and Doors for your next project — you’ll be as impressed as I am!
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Trustindex verifies that the original source of the review is Google.
Read more
Trustindex verifies that the original source of the review is Google.
Read more
Trustindex verifies that the original source of the review is Google.
Read more
Trustindex verifies that the original source of the review is Google.
Read more
Trustindex verifies that the original source of the review is Google.
Read more
Trustindex verifies that the original source of the review is Google.
Read more
These Falcon WD guides help Unionville homeowners compare whole-window ratings, glazing choices and multipoint door hardware before approving replacement specifications.
Compare single, double and triple-pane glass, Super Spacer and whole-window ratings before choosing your windows.
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