5 Best Vinyl Window Replacement Companies in Toronto

This list is based on publicly available ratings, warranty terms, and our team’s install experience.

Last updated: Aug 18, 2025.

Choosing the right window company is hard. You want a fair price, strong warranties, and clean installation. 

This guide lists the best vinyl window replacement companies in Toronto for 2025. We compared warranty terms, customer reviews, installation quality, energy performance, and price transparency. The focus is vinyl. Composite alternatives are clearly labeled.

Top Companies for Vinyl Windows Replacement

Ratings captured on Aug 18, 2025; subject to change; sources linked in table.

How We Evaluated the Companies

We scored each company on a 100-point scale using the factors below. Scores reflect the Greater Toronto Area market only.

Weights

• Warranty (25%) – Length and clarity of frame, hardware, and sealed-unit coverage. Transferability and exclusions considered.

• Customer ratings (25%) – Average rating, review volume, and recency across major platforms. Outliers and obvious spam discounted.

• Install quality (20%) – Our QC checklists, callback rate, and service tickets per 100 installs. Includes post-install support.

• Energy performance (15%) – Published U-factor/SHGC, ENERGY STAR® certification, and availability of Low-E and gas fills.

• Price transparency (15%) – Presence of published ranges, clear quotes with line items, and no surprise fees.

Data sources

• Brand/manufacturer sites: warranty terms, product specs, certifications.

• Review platforms: Google and HomeStars primarily; BBB and Facebook when relevant.

• Delco install records: QA audits, timelines, and service tickets (GTA jobs).

Update cadence

• Reviewed quarterly and refreshed ad-hoc if brands change warranties, specs, or pricing policies.

• Ratings are snapshots and may change; we include the capture date in the comparison table.

• No sponsorships or paid placement influenced the order.

Delco Windows and Doors

Delco Windows and Doors has earned its reputation as a trusted leader in the vinyl window replacement industry in Toronto. With over 30 years of experience, the company is known for its commitment to delivering high-quality products, exceptional customer service, and energy-efficient solutions tailored to the needs of local homeowners.

Key Features and Benefits

Extensive Product Range: Delco offers a wide selection of vinyl windows, including casement, slider, bay, and bow styles. All the windows are customizable to fit your home’s design.
Energy Efficiency: Their windows feature advanced technologies like Low-E glass, double/triple glazing, and insulated frames. These help homeowners save on energy bills.
Lifetime Warranty: Delco provides a comprehensive lifetime warranty covering both products and installation.
Professional Installation: Their team of skilled technicians ensures a seamless and timely installation process.
Competitive Pricing: Despite their premium offerings, Delco maintains competitive pricing. Delco makes high-quality vinyl windows accessible to a wide range of homeowners In Toronto.

Customer Satisfaction

Delco consistently receives glowing reviews from customers on platforms like Homestars (9.8/10) and Google (4.9/5). Homeowners praise the company for its professionalism, attention to detail, and excellent after-sales support. Many customers highlight how Delco’s windows have significantly improved their home’s comfort and energy efficiency.

Commitment to Sustainability

Delco prioritizes environmentally friendly practices by manufacturing energy-efficient windows that reduce carbon footprints. Their focus on sustainability aligns with the growing demand for eco-conscious home improvements.

Delco Windows and Doors continues to set the standard for vinyl window replacement in Toronto.

Ecoline Windows

Ecoline Windows is a trusted provider of energy-efficient vinyl windows in Toronto. They are well-known for balancing affordability with quality. Their ENERGY STAR® certified windows feature advanced technologies like Low-E glass and argon gas fills.

Pros

• Affordable pricing without sacrificing quality.
• ENERGY STAR® certified for excellent energy efficiency.
• Customizable styles to suit various home designs.
• Efficient and timely installation process.

Cons

• Warranty coverage is not as comprehensive as some competitors.
• Limited focus on premium or high-end designs.

With a Homestars rating of 9.5/10 and Google reviews averaging 4.7/5, Ecoline is a go-to option for budget-conscious homeowners who value energy efficiency and reliability.

Canadian Choice Windows & Doors

Canadian Choice Windows & Doors is a long-standing leader in the vinyl window industry. They offer a wide range of innovative and durable products. Their windows combine modern designs with energy-saving features such as foam-filled frames and triple glazing.

Pros

• Wide selection of styles and modern designs.
• Strong focus on energy efficiency with advanced features.
• Transferable lifetime warranty for added peace of mind.
• Reliable and experienced installation teams.

Cons

• Pricing can be higher compared to budget-focused competitors.
• Some customers report delays during busy seasons.

With strong ratings on Homestars (9.4/10) and Google (4.6/5), Canadian Choice remains a top choice for homeowners seeking reliable, high-quality window replacements.

Renewal by Andersen

Renewal by Andersen is a premium vinyl window replacement company known for its focus on craftsmanship, energy efficiency, and customer satisfaction. They specialize in custom-made windows designed to enhance both the aesthetics and performance of your home.

Pros

• High-quality materials, including Fibrex® composite for durability and energy efficiency.
• Custom designs tailored to each home’s unique needs.
• Excellent customer service and professional installation.
• Strong warranty coverage for long-term peace of mind.

Cons

• Premium pricing may not suit budget-conscious homeowners.
• Limited to their exclusive product line, reducing variety.

With a Homestars rating of 9.2/10 and Google reviews averaging 4.5/5, Renewal by Andersen is ideal for homeowners seeking premium, long-lasting window solutions.

Clera Windows + Doors

Clera Windows + Doors is a family-owned company with over 40 years of experience in manufacturing and installing high-quality vinyl windows. Known for their affordability and locally-made products, Clera is a top choice for homeowners looking for reliable and cost-effective solutions.

Pros

• Locally manufactured products ensure high quality and quick availability.
• Affordable pricing with a variety of styles and customization options.
• Lifetime transferable warranty on both products and installation.
• Strong reputation for excellent customer service.

Cons

• Limited focus on ultra-modern or high-end designs.
• Installation quality may vary depending on the team assigned.

With a Homestars rating of 9.4/10 and Google reviews averaging 4.6/5, Clera Windows + Doors is a dependable option for homeowners seeking affordable, Canadian-made vinyl windows.

Case studies from Delco

Case Study 1- Etobicoke Family: Deadline-Driven Full Replacement

Client: Charles S.

Location: Etobicoke, ON

Scope: Added an exterior door → replaced French doors with a modern 3-panel sliding door → full window replacement (final phase)

Project at a glance

• Installations: Front door, 3-panel sliding door, 8 windows

• Window types: Casement, picture, fixed

• Door type: Storm door (front)

• Materials: Windows -  100% virgin uPVC vinyl; Doors - fiberglass with polyurethane foam core, aluminum frame, glass panels

• Features: Windows - multi-point lock, Weber Grain tech; Doors - fiberglass mesh screen in aluminum frame

• Colours: Interior Black, Exterior White

• Timeline: Tight deadline; completed on time and within budget

Challenge

The family was temporarily living elsewhere during renovations and set a strict deadline for completing all window and door replacements.

Solution

• Sequenced installs to minimise site downtime and coordinate with other trades.

• Used triple-pane units for the final window phase to maximise insulation and comfort.

• Added small design refinements (trim and alignment touches) to elevate the finished look.

Results

• Energy & comfort: Triple-pane windows noticeably improved insulation and indoor comfort.

• Curb appeal: A cohesive black/white palette and the 3-panel slider modernised the façade.

• Delivery: Finished on schedule and within the agreed budget.

“Delco’s service, product quality, and follow-up have been nothing short of world-class… Their work has completely transformed and modernized our house.”
— Charles S.

Case Study 2: Toronto Victorian Home: Heritage-Preserving Retrofit

Client: Jacopo S.

Location: Toronto, ON (Victorian-style home)

Scope: Replace all windows and the front storm door with heritage-sensitive upgrades

Project at a glance

• Installations: Full window package + front storm door

• Method: Retrofit to preserve original interior woodwork

• Specialty work: Replace rotted bay window framing; cap new framework with matching aluminum for protection and low maintenance

• Glazing: Triple-pane windows for insulation and performance

• Crew: Lead installers Nikola and Creighton

Challenge

Maintain the home’s Victorian character, especially the original interior trim, while addressing a deteriorated bay window and upgrading thermal performance.

Solution

• Choose a retrofit approach to keep historic interior woodwork intact.

• Rebuilt compromised bay-window substrate, then aluminum-capped the new framework to prevent future rot.

• Installed triple-pane units for maximum thermal efficiency without altering sightlines.

Results

• Preservation: Original interior detailing retained; exterior refreshed with period-appropriate proportions.

• Durability: Aluminum capping shields new framework and reduces upkeep.

• Comfort & performance: Noticeably better insulation from triple-pane glazing.

“Professionalism, meticulous care, and exceptional customer service… fair and transparent pricing, and outstanding craftsmanship.”
— Jacopo S.

Conclusion

Choosing the right company for vinyl window replacement is a crucial decision that can significantly impact your home’s energy efficiency, comfort, and overall value. With so many options available, it’s essential to select a provider that offers high-quality products, reliable service, and long-term warranties.

Among the options, Delco Windows and Doors stands out as the top choice in Toronto. Their exceptional combination of product quality, energy-efficient features, competitive pricing, and a comprehensive lifetime warranty makes them a trusted leader in the industry. Delco’s commitment to customer satisfaction and professional installation ensures a seamless experience for homeowners.

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About the Author

Edan Sher is Vice President at Delco Windows & Doors, a Canadian-owned manufacturer, supplier, and installer serving Toronto and the GTA since 1989. He oversees product and installation quality, customer experience, and training for Delco’s certified crews