Best Window Companies in London, Canada in 2024

Best Window Companies in London, Canada in 2024
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3 months ago
Reviewed by Bryan Baeumler

Choosing new windows and doors for your home is an important decision that can impact energy efficiency, security, noise reduction and curb appeal. With many window and door companies to choose from in London, Ontario, how do you decide which one is the best?

We’ve evaluated London's top window and door companies to help you make the right choice for your home.

Top Window and Door Companies in London

Company Best For Features Price Range Rating
1. Canadian Choice Windows & Doors Overall Customizable, energy-efficient vinyl windows and doors, 30+ years experience $$$ 4.8/5
2. Loewen Windows Luxury/High-End Premium windows and doors, enduring designs $$$$ 4.7/5
3. Golden Windows Reliability Range of windows and doors for homeowners and builders $$ 4.5/5
4. Renewal by Andersen Replacement Windows Specializes in window replacements, smooth installation $$$ 4.4/5
5. JELD-WEN Windows & Doors Energy Efficiency Reliable, energy-efficient windows and doors $$ 4.3/5
6. EuroLine Windows Custom Windows Innovative custom windows and doors $$$ 4.2/5

How We Evaluate the Best Companies

When reviewing window and door companies, we consider several important factors:

  • Product Quality: Do they manufacture durable, long-lasting products from quality materials? Do they offer advanced glass options and hardware for performance?
  • Energy Efficiency: Do their windows meet ENERGY STAR® requirements? Do they use advanced insulating glass and materials?
  • Warranty: How long and comprehensive is their product warranty? Do they stand behind their products after installation?
  • Customer Service: Are they responsive to customer needs before, during and after installation? Do they have a reputation for great service?
  • Company Reputation & Reviews: What do other customers have to say about their experience? Do they have consistently positive reviews?
  • Range of Products: Do they offer a wide range of window and door types and options to meet various needs?
  • Pricing/Value: How do their prices and quality compare to competitors? Do they offer good value?

Using these criteria, let’s take a closer look at each of our top recommended companies:

1. Canadian Choice Windows & Doors

Canadian Choice Windows & Doors

Page: Windows Replacement in London

Canadian Choice is our top pick for the best overall window manufacturer in London, Ontario. Here's an overview:


  • Wide selection of window styles and finishes
  • Personalized experience from consultation to installation
  • Help to secure permits and schedule install
  • Remove and dispose of old windows & doors
  • Lifetime warranty on vinyl products


  • Don't manufacture wood windows
  • Limited selection of entry doors

As the top-rated window and door company in the London area, Canadian Choice is a great option if you want customized vinyl windows and doors and excellent customer service.

2. Loewen Windows

Loewen Windows


Loewen specializes in premium wood windows and doors for luxury residential and commercial projects.

  • Windows: Custom wood windows. Wide range of shapes, styles and finishes.
  • Doors: Luxury wood entry doors. Custom designs available.
  • Competitive Advantage: The industry leader in wood window craftsmanship and performance.
  • Average Rating: 4.7/5 across 350+ reviews
  • Price Range: $$$$. Upper-end pricing due to premium materials and craftsmanship.


  • Beautiful, all-wood construction
  • Handcrafted for unparalleled quality
  • Unlimited custom shapes and sizes
  • Exceptional insulation and durability
  • Transferable limited lifetime warranty


  • Very expensive
  • Limited dealer network across Canada

For the ultimate in wood window and door aesthetics and performance, Loewen is a top choice despite the premium pricing.

3. Golden Windows

Golden Windows


Golden Windows has been supplying windows and doors in Ontario for over 20 years.

  • Windows: Vinyl and aluminum windows in standard sizes. Energy-efficient models.
  • Doors: Steel and fiberglass entry doors. Vinyl patio doors.
  • Competitive Advantage: Reliable products at reasonable prices for homeowners and builders.
  • Average Rating: 4.5/5 across 200+ reviews
  • Price Range: $$ Reasonably priced.


  • Well-priced products
  • Good selection of reliable, mid-grade windows and doors
  • 25-year warranty on windows
  • Local company for easy servicing


  • Fewer customization options than other brands
  • Limited high-end product range

Golden Windows is a great option for homeowners looking for straightforward vinyl or aluminum windows and doors at reasonable prices backed by good warranties.

4. Renewal by Andersen

Renewal by Andersen


Renewal by Andersen is the window and door division of Andersen, the largest window and door manufacturer in North America.

  • Windows: Vinyl-clad wood and fiberglass composite windows. Replacement and new construction.
  • Doors: Fiberglass entry doors. Storm doors and patio doors available.
  • Competitive Advantage: The Andersen brand reputation. Specializing in window replacements.
  • Average Rating: 4.4/5 across 2,000+ reviews
  • Price Range: $$$. Mid to upper range.


  • Outstanding quality and durability
  • Custom-sized windows without installation issues
  • Great at window replacements, moldings, trims
  • Industry-leading 20-year warranty


  • Very expensive
  • Mixed reviews of sales practices

For a premium window and door replacement experience from an established brand, Renewal by Andersen is a strong contender despite the very high prices.

5. JELD-WEN Windows & Doors

JELD-WEN Windows & Doors


JELD-WEN is one of the largest manufacturers of windows and doors worldwide.

  • Windows: Vinyl, wood, aluminum and wood-clad windows. ENERGY STAR® rated.
  • Doors: Fiberglass, steel and wood exterior doors. Interior doors also available.
  • Competitive Advantage: Reliable, energy-efficient products at mid-level pricing.
  • Average Rating: 4.3/5 across 1,000+ reviews
  • Price Range: $$ Reasonable pricing for the quality.


  • Broad selection of proven window and door products
  • Very good energy efficiency and durability
  • Industry-leading warranties
  • Large dealer network provides support


  • Not as much customization as smaller brands
  • Can be issues with getting customer support

For homeowners looking for good quality and energy efficiency at fair prices, JELD-WEN is an excellent choice.

6. EuroLine Windows

EuroLine Windows


EuroLine is an innovative manufacturer of vinyl and fiberglass windows and doors in Eastern Canada.

  • Windows: Custom-made tilt & turn, casement and fixed vinyl windows.
  • Doors: Steel and fiberglass designer entry doors. Vinyl patio doors.
  • Competitive Advantage: Unique tilt & turn window style and custom capabilities.
  • Average Rating: 4.2/5 across 300+ reviews
  • Price Range: $$$ Mid to upper range.


  • Specialize in innovative tilt-and-turn windows
  • Custom-built windows and doors
  • High energy efficiency and durability
  • Good warranties on products


  • Smaller distribution than larger brands
  • Limited wood window and door options

For unique tilt-and-turn windows or fully custom options, EuroLine Windows is an excellent choice.

Why Quality Windows and Doors Matter

Investing in quality windows and doors has many important benefits for your home:

Energy Efficiency

  • High-performance windows have advanced insulating glass to reduce heat loss in winter and heat gain in summer. This can cut energy costs by up to 30%.
  • Efficient windows and doors improve your home's Energy Rating. This makes your home more comfortable and can increase resale value.

Noise Reduction

  • Today's windows use improved glazing and sealing technology to block outside noise. This can make a huge difference in homes near busy roads.


  • Modern window and door locks and reinforced materials help keep your home secure against intruders. They are an important part of an overall home security plan.


  • Quality windows and doors are built to last decades, not years. Their durability keeps out the elements year after year.


  • New windows and doors can transform the look of your home, both inside and out. The visual appeal they provide adds real value.

The Right Company Makes a Difference

Choosing the right window and door company ensures you get the full benefits new products provide:

  • Consultation - They listen to your needs and recommend the best options.
  • Quality Installation - Windows and doors must be properly installed to function as intended. Good companies take care to install them correctly.
  • Warranties - A company that stands behind its products will be there if any issues come up down the road.
  • Customer Service - From the purchase decision through installation and beyond, the right company will provide exceptional service.

Factors to Consider When Choosing a Window & Door Company

Here are the most important factors to keep in mind:

  • Types of Windows & Doors: Look for a company that offers a wide range of window and door types and styles to get the right products for your home.
  • Energy Efficiency: Choose windows and doors that meet or exceed ENERGY STAR® requirements. Look for quality insulating glass and weatherstripping.
  • Materials & Durability: Look for durable, high-quality materials like vinyl, wood, aluminum and fiberglass. Avoid cheap vinyl windows that lose performance quickly.
  • Warranties: Product warranties should provide extensive coverage for at least 10-20 years. Lifetime warranties on vinyl windows are ideal.
  • Company Reputation: Read reviews and ask for local referrals. Good companies should have overwhelmingly positive feedback.
  • Experience & Certified Installers: Look for an established local company with certified installation professionals. Long-term experience is key.
  • Price/Value: Compare product lines and prices. Quality windows don’t have to be extremely expensive. Focus on value over the lowest cost.
  • Customer Service: Look for exceptional customer service throughout the process. Beware companies with many complaints.

What to Avoid When Choosing a Window & Door Company

There are a few red flags to watch out for:

  • High-Pressure Sales Tactics - Never feel forced into buying. Watch for unrealistic pricing only with "limited-time deals".
  • Overpromising Features - Some window sellers tout extreme features their products can't actually deliver. Stick with proven brands.
  • Lack of Local Physical Address - Ensure the company has a local physical office, not just a call center.
  • Unsatisfactory Reviews - With so many great window companies available, don't settle for one with many unhappy customers.
  • Low Warranties - Anything less than 10 years is too low for window or door warranties. Make sure coverage is extensive.
  • Non-Certified Installers - Ask about installer qualifications. Poor installation can ruin good windows.


Replacing the windows and doors in your London home is a big investment that can pay off for years through greater comfort, energy savings, aesthetics and improved home performance. Taking the time to carefully evaluate and choose the right company ensures your satisfaction.

The window and door companies profiled here are among the top options in London, Ontario based on product quality, energy efficiency, warranties, stellar customer service and value. Reaching out for quotes from one or more of them is a great way to get your window and door replacement job or installation project started on the right foot.

With the right windows and doors professionally installed, you’ll be able to enjoy your home’s perfect views for decades to come.

Window cost calculator

Frequently Asked Questions

Q: What are the best types of windows for energy efficiency in Canada?

A: The most energy-efficient windows for Canadian weather are triple-glazed vinyl or fiberglass windows with thermally optimized frames and LowE-coated glass. Look for ENERGY STAR-rated models.

Q: How much do replacement windows in London, Ontario cost?

A: The average cost to replace windows in London is $650 - $850 per window installed. Vinyl windows tend to be the most cost-effective, while wood and fiberglass are premium options.

Q: What’s the best way to get quotes for new windows?

A: Contact 3-4 top local window companies to come assess your home and provide detailed quotes for recommended window solutions. Be wary of online instant quote tools.

Q: How long does it take to install replacement windows?

A: The installation time varies based on the number of windows, but expect 1-2 days for most standard window replacements. Larger projects with more installations or custom windows may take 3-5 days.

Q: What are the best double-glazed windows for energy efficiency in the London area?

A: Double-glazed vinyl windows with LowE coated glass and argon gas fill are excellent for energy efficiency. Look for brands like Centennial Windows that offer double-glazed options.

Q: How much do bay window replacements usually cost in London, Ontario?

A: Expect to pay $1,500 - $2,500 for a typical vinyl bay window installed. More complex, bay windows and designs with curved glass or wood can cost $3,000 to $5,000.

Q: What questions should I ask window companies to understand their end-to-end solution?

A: Ask about their process from measurement and ordering to customization options, delivery, installation, cleanup, warranties and aftercare services. A good end-to-end process is important.

Q: How can I ensure I’m completely satisfied with new windows and sliding doors?

A: Work with a professional, trusted local company known for quality products and exceptional customer service. Have them explain options and inspect the work thoroughly. Don't settle for less.

Q: How much can new energy-efficient windows reduce energy consumption?

A: Properly installed ENERGY STAR® windows can reduce heating and cooling costs by 12-30%. High-efficiency triple-pane windows deliver the most energy savings.

Q: What home improvement rebates are available for window replacements in London, Ontario?

A: Check the Enbridge and Union Gas rebate programs. ENERGY STAR window rebates provide up to $500 per opening to help offset costs.

Julia Gurevich
Julia Gurevich

Julia Gurevich is a versatile content writer with a passion for delivering captivating narratives through a diverse and attentive approach. Her eye for detail helps her craft content that resonates with audiences across varied home improvement industries, capturing the perfect balance between information and entertainment. As a content coordinator, Julia takes pride in delivering content that leaves a lasting impact through her ability to navigate seamless content strategies and collaborative projects between teams. In her free time, she enjoys exploring Toronto’s cultural landscape, visiting local parks, and getting to know members of the community through events and activities.

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Reviewed by Bryan Baeumler

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Pebble Color Swatch
Venetian Red Color Swatch
Iron Ore Color Swatch

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