Falcon WD provides measured window and door replacement for Thornhill homeowners. We supply made-to-order ENERGY STAR certified vinyl windows, custom steel and fiberglass entry systems, and sliding patio doors, then document the approved product, installation method, finishing and cleanup in a written project scope.
Request a FREE Thornhill in-home assessment and receive a written quotation built around the measured openings, selected products and included finishing.
The 2021 Census records 43,889 total private dwellings in the Thornhill federal electoral district. Thornhill spans parts of Vaughan and Markham, with established houses, townhomes and newer construction that bring different wall assemblies, opening sizes, exterior finishes and previous renovation conditions. Every recommendation begins with the measured home.
Homes near Yonge Street and Centre Street, Thornhill Woods, Beverley Glen, Royal Orchard, German Mills and Brownridge can differ in masonry returns, siding transitions, jamb depth, interior trim, exposure and access. Local context matters, but measurements and the homeowner’s priorities determine the specification.
A Thornhill window deserves a complete-opening assessment when operation becomes difficult, locks stop aligning, insulated glass fogs or recurring drafts appear around the frame. We review the sash, frame, sill, drainage path, perimeter insulation, interior casing and exterior connection before defining what the replacement must address.
Falcon WD replacement windows are ENERGY STAR certified. Available configurations can include double- or triple-pane insulated glass, Low-E coatings, argon gas, warm-edge spacers, screens, exterior colours and matching hardware. We compare the complete window—U-factor, Energy Rating, operating style, orientation and glass area—rather than promoting one glass package for every room.
Retrofit installation may retain a sound, dry and square existing frame. Full-frame replacement removes that frame when deterioration, dimensions, water-management details or finishing requirements call for access to the rough opening. We measure Thornhill openings at the jamb, sill, interior trim and exterior return before an order is approved.
For a front, side or backyard opening, Falcon WD can configure single or double steel and fiberglass entrances, sidelites, transoms, privacy or decorative glass, coordinated hardware and compatible multipoint locks. Sliding patio doors are specified separately for panel direction, screen travel, sill condition, glass package, rollers and locking hardware.
Thornhill properties fall within two municipalities. Markham’s building permit process lists same-size window and door replacement among work that does not require a permit, while Vaughan’s door and window opening guidance requires a permit for a new exterior opening or an increase to an existing opening’s width. Confirm the property municipality and exact scope before ordering.
PLANNING REPLACEMENT WINDOWS, A NEW ENTRY OR A PATIO DOOR FOR A THORNHILL HOME?
Book a Thornhill home review so the quotation identifies each measured unit, approved configuration, access condition and finishing item included in the project.
Window and door performance depends on both the product and the way it connects to the existing wall. Falcon WD brings measurements, product choices, access planning, insulation, sealing, finishing and operating checks together in one written Thornhill scope.
Falcon WD has worked with Ontario homeowners since 2010. Thornhill projects move through an opening review, written quotation, final measurement, order verification, installation, finishing and homeowner handover.
Falcon WD is BBB Accredited. Google, BBB and HomeStars provide independent places to review homeowner feedback instead of relying only on claims made on this website.
We explain U-factor, Energy Rating, glass packages, operating styles, screens, colours and hardware in practical terms. ENERGY STAR certification confirms tested product performance; household results also depend on the building and its operation.
Every quotation identifies the windows and doors being supplied and the installation tasks included. Removal, insulation, perimeter sealing, capping, trim, cleanup and disposal are recorded only where they form part of the agreed contract.
Thornhill includes established detached houses, townhomes and newer construction across both Vaughan and Markham, with brick, stone, stucco, siding and mixed exterior details. Colours, grille layouts, jamb depth, casing and exterior capping can be coordinated across the elevation while glass and operating style stay specific to each room.
Single-hung windows keep the upper sash fixed and move the lower sash vertically. Their non-projecting operation can be practical beside a walkway, deck or driveway where exterior swing clearance is limited.
With both upper and lower sashes operable, double-hung windows offer flexible ventilation. Compatible designs also support room-side access for cleaning without requiring the sash to swing beyond the wall.
Picture windows are fixed units designed for daylight, views and strong thermal performance. A large Thornhill opening can pair a picture centre with casement or awning units when controlled ventilation is also required.
Hinged along the top, an awning window opens outward at the bottom. This format can work in wider or elevated wall positions after exterior clearance, screen placement and reachable hardware are confirmed.
Casement windows open from a side hinge and pull tightly against compression seals when closed. Handing, crank access, insect screen position and clearance from paths, planting or roof edges are checked at measurement.
A fixed casement does not open, but its frame and glass proportions can align with adjacent operating casements. That makes it useful where consistent sightlines matter but ventilation is not needed.
A single slider combines one moving horizontal sash with one fixed sash. Because it stays within the plane of the wall, it can suit rooms facing a patio, side yard or another restricted exterior space.
Both sashes move in a double slider. Screen location, locking hardware and removable or tilt-in cleaning features vary by product line and are confirmed as part of the approved specification.
End-vent sliders place a fixed pane in the centre with an operating sash at each end. The format provides a broad view and ventilation from both sides without projecting beyond the exterior wall.
Bay and bow assemblies extend outside the wall and must be reviewed as a complete projection. Existing framing, support, roof or capping, seat board and interior finish are assessed before dimensions or configuration are changed.
A sliding patio door preserves swing space while connecting the room to a deck or yard. We verify the active-panel direction, screen movement, sill support, glass, rollers, handle and lock for the measured doorway.
Steel entrance systems can combine panel designs, privacy or decorative glass, sidelites, transoms, colours and multiple hardware choices. Slab, frame, sill, weather seals and lock preparation are ordered as one compatible system.
Fiberglass doors are available with smooth or wood-grain surfaces and multiple panel and glass layouts. The slab, frame, sidelites, transom, sill, finish and hardware are coordinated for the measured Thornhill entrance and surrounding exterior.
A high-performing product still depends on correct integration. Frame dimensions, glass, hardware, insulation, sealants, sill drainage and finishing must work together at the existing wall.
Control perimeter leakage: Precise sizing, appropriate insulation and continuous interior and exterior seals address air movement around the frame as well as through the product.
Match glazing to exposure: Pane count, Low-E coating, gas fill, spacer, orientation, shading and total glass area are considered together for the specific room.
Compare complete ratings: A lower U-factor and higher Energy Rating indicate stronger tested performance, but size and operating configuration remain part of the decision.
Choose usable operation: Sash size, handle reach, patio-door rollers, screens, weatherstripping and locks should fit the occupants and the way the room is arranged.
Specify compatible security: Window locks, entrance hardware and available multipoint systems are selected with the frame, panel and door preparation—not added as unrelated parts.
Finish the exterior connection: Sill support, sealants, flashing and capping are planned to shed water and leave a continuous, maintainable perimeter seal.
Coordinate the façade: Window colours, grille layouts, entry-door glass and hardware can create a consistent design across openings of different sizes.
Record inside clearances: Jamb depth, casing, handles, blinds and nearby furniture are checked so the finished unit can operate as intended.
Approve details before release: Dimensions, handing, opening direction, glazing, colour, screens, sill and hardware are verified before manufacturing.
A documented sequence links the first consultation to the final order. Projects involving specialty shapes, custom colours, multiple openings or possible structural changes receive additional review before production.
1
We examine operation, frame and glass condition, sill and perimeter details, adjacent masonry or siding, interior trim, installation access and the homeowner’s priorities.
2
After quotation approval, final sizes and every selection—style, glass, colour, screen, hardware, jamb and included finishing—are recorded for each ordered unit.
3
Dimensions, handing and specifications are checked before the order is released. Installation timing is arranged after product availability and site access are confirmed.
4
The crew performs the contracted removal, fitting, insulation, sealing and finishing. Windows, doors and locks are operated, the area is cleaned, and old units are removed when disposal is included.
READY TO REVIEW OPTIONS FOR YOUR THORNHILL HOME?
Request a Thornhill in-home measurement for replacement windows, a steel or fiberglass entry system, or a sliding patio door.
These answers cover common Thornhill planning questions. For a specific project, the signed quotation, approved specifications and applicable written warranty documents remain the controlling records.
Arrange an assessment when a sash binds, hardware no longer secures the unit, insulated glass fogs between panes, the frame is damaged, or drafts and moisture repeatedly appear around the perimeter. The full opening should be checked before choosing retrofit or full-frame replacement.
Options include casement, awning, fixed casement, picture, single- and double-hung, single and double slider, end-vent slider, bay and bow windows. Room use, ventilation, egress where applicable, available dimensions and exterior clearance determine which styles are practical.
Thornhill spans Vaughan and Markham. Markham lists same-size window and door replacement among projects that do not require a building permit; Vaughan requires a permit for a new exterior opening or when the width of an existing opening is increased. Confirm the property municipality and exact scope before ordering.
No. Double- and triple-pane packages can both be appropriate. Compare the complete ENERGY STAR certified unit using U-factor, Energy Rating, operating style, Low-E coating, gas fill, spacer, orientation, glass area and the project budget.
Yes. Falcon WD can supply custom steel or fiberglass entrance systems, sidelites, transoms and sliding patio doors. Panel layout, glass, colour, screen, sill, direction, handle and locking hardware are matched to each measured doorway.
The quotation should identify each selected unit and the contracted installation work. Removal, insulation, sealing, exterior capping, interior trim, cleanup and disposal are included only when written into the scope; structural work must also be stated separately.
Thornhill pricing depends on opening quantity and dimensions, operating style, glass package, colours, hardware, retrofit or full-frame installation, access and finishing. Falcon WD prepares the written price after reviewing the openings and requested scope.
Manufacturer coverage can extend up to 25 years depending on the selected product line, glass and components. Installation coverage follows the contracted work. The applicable written terms are reviewed before the order is finalized.
Trustindex verifies that the original source of the review is Google.
Read more
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!
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
Trustindex verifies that the original source of the review is Google.
Read more
These Falcon WD guides help Thornhill homeowners compare whole-window ratings, modern glazing choices and multipoint door hardware before approving replacement specifications.
Modern glass is no longer just a transparent barrier between you and the outdoors. In the 2026 high-performance market, a window replacement acts as a
Thermal efficiency in 2026 is no longer defined by how high you can crank the furnace. Instead, it is defined by how effectively your home
A home’s ability to retain heat in 2026 depends as much on mechanical compression as it does on the glass itself. While many property owners
400 Applewood Crescent #100 Concord, ON L4K 0C3
Email: info@falconwindows.ca
Toll Free: 1(833) 932-5266
Local: (647) 977-1010
© 2019 – 2026 www.falconwindows.ca – All Rights Reserved.
