Vinyl Windows Manufacturer & Supplier in London, ON

London experiences a four-season climate typical of southwestern Ontario: winters that bring meaningful cold and occasional ice storms, combined with warm and humid summers. The city’s position in the snow belt south of Lake Huron means it receives more snow and more moderate winters than eastern Ontario but colder conditions than the Lake Erie corridor. Our uPVC multi-chamber profiles handle this full seasonal range without dimensional instability. Fusion-welded corners provide superior air-sealing performance over mechanically joined alternatives, and our dual-seal warm-edge spacers maintain thermal integrity through southwestern Ontario winters.

Yes. Window Force manufactures both. For most London residential applications, high-performance double-pane windows with Low-E coatings and argon fill deliver strong energy efficiency. Triple-pane units are worth considering for north-facing elevations, homes in more exposed locations, or homeowners seeking maximum thermal comfort and condensation reduction through the winter. Our team can work through the right option for your project.

Over 15 configurations: Low-E coatings calibrated for Ontario’s climate, argon gas fill, tempered safety glass, laminated glass for security and sound reduction, and decorative privacy glass. Laminated glass is worth considering for properties near busier London roads and transit corridors where noise is a quality-of-life consideration alongside thermal performance.

Yes. Every window is custom-manufactured at our Ontario facility to your exact opening dimensions. London’s housing stock covers the full range: Victorian and Edwardian homes in Old South and Wortley Village with irregular opening sizes; post-war bungalows throughout Hamilton Road and Huron Heights; and contemporary new construction in Lambeth and Talbot Village. Each unit is built to specification.

The Ultraslim Series features a 4-9/16″ frame depth with a narrow 2-7/8″ visible profile and hidden gasket, a contemporary design suited to new construction and renovation projects where a modern aesthetic is the intent. The Classic Series offers a 3-1/4″ frame depth and conventional profile, the preferred option for replacement installations in London’s many established and heritage neighbourhoods where existing trim details need to be preserved.

Yes. While Window Force primarily serves builders, dealers, and contractors as a B2B manufacturer, we welcome direct orders from homeowners in London. Contact our team for a consultation and we’ll guide you through product selection, provide a detailed quote, and arrange professional installation if needed.

Yes. Contact our sales team to discuss available programs, payment terms, and eligibility requirements for your project.

Our windows use a metal-free, dual-seal warm-edge spacer system designed to minimize heat transfer at the glass perimeter and reduce condensation along the inner sightline. This technology contributes to thermal comfort during southwestern Ontario winters and to long-term seal integrity over the full seasonal cycling that London’s climate delivers.

Yes. The warranty is fully transferable to new homeowners at point of sale. Coverage: full 100% for the first 25 years, 80% manufacturer / 20% customer from years 25 to 30, and 25% manufacturer / 75% customer after 30 years.

Yes. Our installation services operate year-round, including through southwestern Ontario winters. Our experienced installation teams are equipped to work in all weather conditions while ensuring proper sealing and product performance.

Condensation forms when warm, humid indoor air contacts a cooler glass surface and releases moisture. London homes, particularly older properties with higher air infiltration, can experience condensation during cold winter periods. Premium vinyl windows with warm-edge spacer technology and Low-E glazing keep the interior glass surface warmer, reducing condensation occurrence. Maintaining indoor humidity between 30 and 50 percent is recommended.

London window installations must comply with the Ontario Building Code (2024 OBC). The OBC sets minimum energy performance requirements for windows in Ontario’s climate zones, along with egress requirements for bedroom windows, structural load resistance, and installation standards. Our products meet OBC requirements, and our installation teams are familiar with the City of London’s permit and compliance process.

CSA certified and ENERGY STAR rated for all Ontario climate zones. As an ENERGY STAR Partner, we produce windows meeting benchmarks calibrated for Ontario’s residential climate requirements.

Yes. South-facing windows benefit from Low-E coatings optimized for winter solar heat gain. North-facing windows should prioritize maximum insulation performance. Our team can recommend glazing by orientation for your specific home.

Several weeks depending on order complexity and current production schedules. Since every window is custom-manufactured at our Ontario facility, we confirm a specific timeline at order placement and keep you updated through production and installation scheduling.

Contact us through our website or call 905.761.2030. Our team will guide you through product selection, confirm measurements, and walk you through customization options. Once your order is placed, we manufacture your windows at our Ontario facility and coordinate delivery and installation.

The complete Window Force product lineup: casement windows for excellent ventilation and airtight sealing, awning windows, single and double hung for the traditional profiles common throughout London’s heritage neighbourhoods, sliders, fixed and picture windows, bay and bow configurations, and custom architectural shapes.

London’s mix of heritage residential stock, established mid-century communities, and growing new construction calls for a window manufacturer with both engineering quality and product range. Window Force delivers CSA-certified, ENERGY STAR-rated windows manufactured in Ontario, backed by a comprehensive transferable warranty and year-round installation support across the London area.

New construction windows include a nailing fin that attaches to exposed wall studs before exterior cladding is applied. Replacement windows are precision-manufactured to fit existing openings without disturbing interior or exterior trim, the right approach for upgrading windows in London’s established residential neighbourhoods. Window Force manufactures both, and our team can advise which approach is right for your specific project.