The 7 Best Window Companies in Ontario in 2024

The 7 Best Window Companies in Ontario in 2024
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1 week ago
Reviewed by Bryan Baeumler

Replacing your home's windows can dramatically affect energy efficiency, noise reduction, and aesthetics. With so many window manufacturers to choose from, it can be overwhelming to select the right company for your window replacement project.

Top Window Companies in Ontario

Company Best For Features Price Range Rating
1. Canadian Choice Windows & Doors Overall Customizable, energy-efficient vinyl windows, 30+ years experience $$ 4.8/5
2. Window World Vinyl Windows Largest window company in Canada, affordable, lifetime warranty $ 4.5/5
3. Milgard Windows & Doors Quality High-end vinyl & fiberglass, premium hardware $$$ 4.7/5
4. Renewal by Andersen Fibreglass Windows Composite Fibrex material, high energy efficiency $$$ 4.6/5
5. Universal Windows Direct Budget Industry-leading lifetime warranty $$ 4.2/5
6. EcoTech Windows & Doors Energy Efficient Leading energy-efficient windows & doors $$ 4.5/5
7. JELD-WEN Windows & Doors Variety Huge selection of window & door styles $$ 4.3/5

How We Evaluated

We looked at the following criteria when reviewing window companies in Ontario:

  • Product Quality: Material used, design, energy efficiency ratings
  • Warranties: Length and coverage of product warranties
  • Customer Service: Reviews and reputation for service and support
  • Pricing/Value: Price ranges and value compared to quality
  • Selection: Range of window styles and customization options

1. Canadian Choice Windows & Doors

Canadian Choice Windows & Doors

Best For: Overall window replacements

Page: Windows Replacement in Ontario

Family-owned for over 30 years, Canadian Choice provides customized, energy-efficient casement, awning, bay, double-hung, and slider vinyl window replacements in Southern Ontario. Their Energy Star-certified windows come in various styles and colors to suit homeowner needs.

Windows: Double hung, casement, awning, bay and bow, sliding, garden, picture


  • Custom-made to fit each opening
  • Energy efficient, ENERGY STAR-certified
  • Lifetime warranty on vinyl products
  • Wide selection of styles and colors
  • Excellent reputation for quality and service


  • Premium prices
  • Mostly serves Southern Ontario

Price Range: $$

2. Window World

Window World

Best For: Affordable vinyl replacement windows


Window World is Canada's top manufacturer of affordable vinyl replacement windows including double-hung, sliding, and picture windows. Their Energy Star-certified products are custom-built to suit each home. Window World offers cooling and heating bill savings with energy-efficient windows provided and installed by their qualified team.

Windows: Double hung, sliders, picture, two bay windows and bow


  • Affordably priced
  • Industry-leading lifetime warranty
  • Quick, professional installation
  • Wide selection of vinyl windows


  • Mixed reviews on customer service
  • Mostly basic window styles

Price Range: $

3. Milgard Windows & Doors

Milgard Windows & Doors

Best For: High-end vinyl and fiberglass windows


Milgard is a top-rated window brand serving Northern and Southern Ontario for over 50 years. Their three-pane window options provide excellent UV ray protection and energy efficiency. Milgard offers customized vinyl and fiberglass windows and patio doors tailored to each home with quality service, including their own certified installers.

Windows: Double hung windows, sliders, casements, awnings, picture


  • Custom fiberglass & vinyl windows
  • UltraTM energy-efficient glass packages
  • Quiet operation, great for noise reduction
  • Full lifetime warranty
  • Excellent durability and quality


  • Premium prices
  • Mostly serves Southern Ontario

Price Range: $$$

4. Renewal by Andersen

Renewal by Andersen

Best For: Fibrex composite windows


Renewal by Andersen is one of the few window companies to manufacture innovative Fibrex composite window frames, which offer energy savings. Their double-hung, and awning windows, and casement windows are highly rated by customers for performance and aesthetics.

Windows: Double hung, casement, awning house windows, picture, bay, bow


  • Composite Fibrex windows for superior performance
  • Industry-leading energy efficiency
  • Transferable limited warranty
  • Helpful website with design tools


  • Very expensive
  • Mixed reviews on the sales process

Price Range: $$$

5. Universal Windows Direct

Universal Windows Direct

Best For: Budget-friendly vinyl windows


Universal Windows Direct provides homeowners quality yet budget-friendly windows, including single-hung, double-hung, sliding, and casement styles. For over 20 years, they've offered quick installation and served Ontario with excellence. Many options are Energy Star certified.

Windows: Single & double hung, sliders, casements


  • Affordable vinyl windows
  • Industry-leading lifetime warranty
  • Quick replacements, new construction


  • Limited styles and options
  • Not all are energy-efficient

Price Range: $$

6. EcoTech Windows & Doors

EcoTech Windows & Doors

Best For: Energy-efficient vinyl windows


EcoTech uses top-tier vinyl to construct Energy Star-certified custom windows in many styles. Homeowners can expect heating and cooling bill savings from EcoTech's energy-efficient double hung, sliding, casement, and picture window products. Installation is also available.

Windows: Double hung, casements, sliders, picture, bays


  • Custom-made high-efficiency vinyl
  • Third-party tested for quality
  • ENERGY STAR Most Efficient
  • Great expertise in energy efficiency


  • Smaller company, limited areas
  • Mixed reviews on sales process

Price Range: $$

7. JELD-WEN Windows & Doors

JELD-WEN Windows & Doors

Best For: Huge selection of windows & doors


With a vast selection of window and door styles and options to suit any home, JELD-WEN is a top-rated brand serving Ontario for decades. Their energy-efficient offerings include double-hung, sliding, bay, specialty, and custom windows and patio doors to meet each customer's needs.

Windows: Double hung, sliders, casements, awnings, bays, specialty windows


  • Massive selection of styles
  • Energy-efficient options
  • Industry-leading warranties
  • Reliable brand with 60+ years of experience


  • Installation and service can vary
  • Not as customization options

Price Range: $$

Why Quality Windows and Doors Matter

Investing in high quality windows, and doors for your home is well worth the investment, for several important reasons:

  • Energy Efficiency - High-performance windows and doors reduce air leaks and improve insulation, lowering energy costs.
  • Noise Reduction - Modern window materials and construction blocks outside noise far better than old single-pane windows.
  • Improved Comfort - New windows keep your home warmer in winter and cooler in summer.
  • Added Security - New door and window locks and sealing prevent intruders from entering your home.
  • Curb Appeal - Replacing old windows and doors instantly improves the aesthetics of your home, adding value.

Choosing the right window and door company ensures professional installation and the best materials for your home. The window installations and company you choose can make all the difference in getting results that enhance your home for years to come.

What to Look for in a Window Company

When evaluating window and door companies, here are the key factors to consider:

  • Years of Experience - Look for established companies with 10+ years of experience.
  • Materials Used - Compare materials like vinyl, wood, and aluminum.
  • Range of Styles - Look for brands that offer a wide range of windows and customization options.
  • ENERGY STAR Certification - Choosing ENERGY STAR-certified products ensures energy efficiency.
  • Warranties - Compare warranties on products, parts, and installation. Lifetime warranties are ideal.
  • Customer Service - Read reviews and testimonials to evaluate customer service.
  • Company Reputation - Choose companies with an A+ BBB rating and solid reputation.
  • Full-Service Company - Select a company that handles the full replacement process from start to finish.

Avoid These Window & Door Company Red Flags

When selecting a window manufacturer or door provider, be on the lookout for these red flags:

  • High-pressure sales tactics or pushy reps
  • Vague estimates and unclear pricing
  • Limited or sketchy warranty details
  • No physical location you can visit
  • Low ratings and reviews online
  • No ENERGY STAR-certified options
  • Old technology and materials like aluminum frames
  • Claims that seem too good to be true

Doing your research helps avoid choosing the wrong company and ensures you get the best quality windows or doors for your budget.


Changing your home's windows and doors is one of the smartest investments you can make. The right windows make your home more beautiful, comfortable, and energy-efficient while saving on utility bills. When selecting the perfect window company for your replacement project, choose an established, reputable company that offers quality installs, excellent warranties, and proven results.

We recommend getting free quotes from the best window companies, listed here to start your search. They are among the top window and door providers known for their products, services, and transformation of homes in Ontario and across Canada. With new high-performance windows or doors, you'll enjoy your home more while increasing its resale value.

Window glass price list

Frequently Asked Questions

How much do replacement windows cost in Ontario?

The average cost to replace windows in Ontario ranges from $650 - $1,500 per window installed. Cost depends on the type of window, brand, materials, and labor. Most companies provide free estimates.

How do I choose the best windows for my home in Ontario?

Look for ENERGY STAR-certified windows customized for your climate. Compare materials like vinyl, wood, and aluminum. Choose durable, insulated windows offering noise reduction, minimal upkeep, and a warranty.

Should I choose a local or national window company in Ontario?

Local companies understand regional needs, codes, and climate and offer greater accountability. But reputable national brands also have advantages like huge buying power and multi-location teams. Review companies on a case-by-case basis.

How long will it take to install replacement windows in Ontario?

The installation process typically takes 1-2 days depending on the number of windows. Installers can usually replace 2-3 windows per day. Proper installation is crucial for performance and longevity.

What are the top window brands in Canada?

Some of the best window brands in Canada include Canadian Choice, Pella, Milgard, JELD-WEN, Andersen Windows, Thermo Tech, Window World, and Polar Windows. Look for brands with excellent reputations, warranties, and advanced window technology.

What are the most popular window styles in Ontario?

The double hung, casement, slider, awning, and picture window styles are the most prevalent in Ontario homes due to their functionality, aesthetics, and ventilation abilities.

What are the benefits of energy-efficient windows?

Energy-efficient windows lower utility bills, keep homes more comfortable year-round, reduce outside noise, are eco-friendly, and add value and durability as long-lasting investments.

Simon Pozneris, President of Brand & Marketing
Simon Pozneris, President of Brand & Marketing

As founder and President at Canadian Choice Windows and Doors, I've turned my passion for home improvement into a national brand. From our humble beginnings as a single store, we've expanded to six locations across Canada, specializing in windows, doors, and energy-efficient home solutions.

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Reviewed by Bryan Baeumler

1000’s of Colours & Textured Finishes

Transform your home from ordinary to extraordinary with our new coloured and non-glare textured finishes. Available in a wide array of colours as well as custom matched colours for your very own personalized design.

Our Most Popular Replacement Window Colours:

Rainware White Color Swatch
Sandalwood Color Swatch
Brownstone Color Swatch
Commercial Brown Color Swatch
Wedgewood Blue Color Swatch
Pebble Color Swatch
Venetian Red Color Swatch
Iron Ore Color Swatch

Take advantage of Canada’s Greener Homes Grant today!

Save thousands off your new window and door installation. Find out if you qualify!

Southern Ontario: