Top 11 Window Companies in Toronto for 2025

With energy efficiency continuing to be a top priority in 2025, new windows remain among the top 10 most desired home upgrades for homeowners. Many are exploring the market to enhance their homes, boost property values, and align with the growing trend of going green—all while taking advantage of the significant government rebates and loans available for energy-efficient upgrades.

Toronto’s window replacement market is highly competitive, offering many options for homeowners to consider when planning their next window upgrade; hence, choosing the right window company can feel overwhelming, especially with so many providers promising superior products and services. 

That’s why it’s vital to compare key factors like company type, warranties, customer reviews, and ratings before signing a replacement contract.

Whether your goal is improved aesthetics, greater energy savings, or enhanced comfort, knowing what to look for will ensure you make an informed decision. 

Today, our experts analyse Toronto’s top 11 window replacement companies to help you better navigate the local market. Ready to find the perfect contractor to do the job? Keep reading!

Top 11 Window Companies in Toronto: Overall Comparison

The table below provides a breakdown of the top 11 window replacement companies in Toronto for 2025 based on the most critical aspects of the initial background check, such as warranty terms, ratings and reviews online, and the company type.

Please note that ratings and information are subject to change; it’s advisable to verify the latest details directly with the companies and do your own research (DYOR) before requesting services from any of the companies represented in the table.

Logo	Company	Warranty	HomeStars Rating	Google Rating
	Pella Windows & Doors of Toronto	Limited Lifetime Warranty	5.3/10 (but no longer active on HS)	4/5
	GTA Direct Windows & Doors	25 Years	9.8/10	5/5
	Toronto Doors and Windows Company	Limited Lifetime Warranty	N/A	4.9/5
	NorthShield Windows and Doors	Product – 25 years Installation – 15 years	9.7/10	4.9/5
	Eco Choice Windows & Doors	Limited Lifetime Warranty	9.5/10	4.7/5
	Euroline Windows	10 – 25 years warranty	N/A	4.5/5
	Delco Windows and Doors	Limited Lifetime Warranty	9.8/10	4.9/5
	Magic Window Innovations	40 Years Warranty	N/A	4.8/5
	Renewal by Andersen	Limited Warranty (20 years)	9.6/10	4.8/5
	Centennial Windows & Doors	Transferable Lifetime Warranty	9.2/10	4.1/5
	Clera Windows and Doors	Lifetime Warranty	9.7/10	4.2/5

Key Things to Consider When Choosing a Window Company

Selecting the right window replacement company ensures a successful and stress-free upgrade. With so many different things to consider before signing a contract, here are the key factors every homeowner should consider before making a decision:

1. Warranty

Look for a comprehensive warranty that covers both the product and installation. Many companies offer “lifetime” or transferable warranties, but the fine print matters. The best window warranty packages come with a 25-year warranty on both product and labour.

2. Customer Reviews

When doing the initial background check of the company, it is always a good idea to check the reviews and ratings online from different reputable services. 

For example, Google and HomeStars ratings best show customer satisfaction with the company’s products and services. Focus on recurring themes—both positive and negative—in reviews to assess consistency.

3. Energy Efficiency

Only deal with the companies offering windows with Energy Star certifications. Don’t hesitate to ask about energy ratings since any window with an overall ER (energy rating) less than 34 can’t be recognised as energy-efficient and won’t be eligible for government rebates, providing poor insulation. 

Overall, a triple-pane window is now standard for most reliable contractors, but clarifying all the energy specifications included in your quote and contract can never be emphasized enough.

4. Local Installation Experts

Choosing a local company familiar with Toronto’s building codes, rebate programs, and climate always leads to more satisfaction with the final result. Moreover, make sure to:

• Verify that the company employs trained and certified in-house installers. Poor installation can void warranties and lead to issues like leaks or drafts.
• Ask about the timeline and process—reputable companies provide clear project schedules.

5. Price Transparency

• Request a detailed quote with a clear breakdown of the products and services you are interested in.
• Avoid companies that provide vague estimates or high-pressure sales tactics.
• Compare the initial free consultation quote with the final contract; they should be the same.
• Check that the energy specifications of your windows are included in the contract/quote.

Top-11 Window Companies in Toronto: Homeowners Reviews 

We can’t stress enough how crucial it is to evaluate a company’s experience, past projects, and customer feedback before deciding if the contractor fits your project.

Homeowners reviews offer a valuable glimpse into the real-world performance of a company, providing insights into strengths and potential shortcomings. Thankfully, much of this information is readily available online, making it easier to assess whether a particular company aligns with your needs and expectations.

To simplify your research, we’ve compiled a breakdown of customer feedback for the top 11 window replacement companies in Toronto. This includes what homeowners liked and disliked based on their experiences. Remember that individual experiences may vary, so it’s always wise to consult multiple sources and reviews for a well-rounded perspective.

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