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Best Window Replacement Companies in Ontario, CA

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  5. Ontario
Written By Max Peterson|Last Updated: April 18, 2024

You might be installing replacement windows to upgrade your home's exterior facade, boost your energy efficiency, or protect your home from harsh weather conditions. Local installers recognize that homeowners would rather not pay a fortune for window replacement in Ontario. They work with cost-efficient materials that don't compromise on durability.

Top Pick
4.7
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
4.4
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
4.3
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Ontario Window Installation Companies

We've compiled this list of contractors that specialize in window replacement in Ontario.

The This Old House Reviews Team evaluated dozens of window companies in and around Ontario. We looked at the following criteria to select the best window replacement companies:

  • Energy-efficiency guarantees
  • Customer reviews and recommendations
  • Product quality
  • Services and warranties
  • Professional experience and licensure
Window World of Los Angeles Logo

Window World of Los Angeles

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4.4/5
Based on 31 customer reviews.

Services Offered

Double-HungVinyl FramesGlass DoorsWindow Replacement/installationBay Windows

Highlights

  • Good customer service
  • Free assessment
  • Educational website
718 Arrow Grand Cir, Covina, CA 310-564-7299 windowworldla.com
CDA Windows and Doors Logo

CDA Windows and Doors

4.7/5
Based on 16 customer reviews.

Services Offered

Glass DoorsWindow Replacement/installationVinyl Frames

Highlights

  • Educational website
  • Free assessment
  • Timely service
10247 Bellegrave Ave Suite 102, Mira Loma, CA 951-530-8714 cdawindowsanddoors.com
United Builders Windows & Doors Logo

United Builders Windows & Doors

4.7/5
Based on 44 customer reviews.

Services Offered

Double-HungEnergy-Efficient OptionsGlass DoorsWindow Replacement/installationBay Windows

Highlights

  • Price transparency
  • Educational website
  • Free assessment
13238 White Fir Ct, Rancho Cucamonga, CA 909-969-8976 unitedbuilders.info
SoCal Window Pros Logo

SoCal Window Pros

4.7/5
Based on 46 customer reviews.

Services Offered

Window Replacement/installation

Highlights

  • Educational website
  • Good customer service
  • Free assessment
482 W Arrow Hwy Unit A, San Dimas, CA 909-394-7777 socalwindowpros.com
Hometime Windows & Doors Logo

Hometime Windows & Doors

4.6/5
Based on 120 customer reviews.

Services Offered

Energy-Efficient OptionsGlass DoorsWindow Replacement/installation

Highlights

  • Good customer service
  • Price transparency
  • Educational website
1081 W 9th St, Upland, CA 909-288-4604 hometimewindows.com
Design Windows and Doors Inc. Logo

Design Windows and Doors

4.5/5
Based on 178 customer reviews.

Services Offered

Glass DoorsFiberglass FramesDouble-HungVinyl FramesEnergy-Efficient OptionsWindow Replacement/installationBay WindowsWood Frames

Highlights

  • Timely service
  • Free assessment
  • Educational website
504 S Mountain Ave, Ontario, CA 909-365-2179 designwindowsinc.com
La Verne Glass &Screen Logo

La Verne Glass &Screen

4.5/5
Based on 33 customer reviews.

Services Offered

MirrorsWindow Replacement/installationCustom Window DesignsGlass ShowersCustom GlassGlass Doors

Highlights

  • Price transparency
  • Free assessment
  • Good customer service
1782 N White Ave, La Verne, CA 909-593-8317 laverneglassandscreen.net
Molding's Plus Inc Logo

Molding's Plus

4.4/5
Based on 125 customer reviews.

Services Offered

Glass DoorsWindow Replacement/installation

Highlights

  • Educational website
  • Free assessment
  • Good customer service
1856 S Grove Ave, Ontario, CA 909-947-3310 moldingsplus.com
The Glass Company Logo

The Glass Company

4.4/5
Based on 32 customer reviews.

Services Offered

Glass RepairGlass ShowersWindow Replacement/installation

Highlights

  • Free assessment
  • Good customer service
  • Price transparency
9630 7th St Unit 115, Rancho Cucamonga, CA 909-994-8744 theglasscompanyca.com

More Local Window Companies

J. R. Door & Window Inc

User Reviews: 4.3/5 

615 N Benson Ave Unit I
Upland, CA 91786

Madison Window Products

User Reviews: 4.3/5 

8720 S Hellman Ave
Rancho Cucamonga, CA 91730

Retro Windows and Patio Doors LLC

User Reviews: 4.7/5 

9590 Catawba Ave
Fontana, CA 92335

Andes windows & doors

User Reviews: 4.7/5 

1665 Third St C
Norco, CA 92860

Mancino Door & Window, Inc.

User Reviews: 4.6/5 

605 E Rte 66
Glendora, CA 91740

Glendora Glass & Mirror

User Reviews: 4.5/5 

712 E Rte 66
Glendora, CA 91740

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Ontario
Annual Energy Efficient Windows Savings:$540
Average Max Temp:77°F
Average Min Temp:57°F
Average Daily Sunlight:72%
Average Annual Snowfall:0"
Average Monthly Precipitation:0.59"

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Window Company in Ontario

With Ontario's sheer size, you're sure to find a reputable window replacement company that matches your values and preferences. As you gather estimates, keep the following factors in mind:

Window Cost by Type

When you're shopping for new windows, it's important to remember that there's more to cost than just purchase price. You want a high-quality and durable window. Although premium windows may be more expensive to buy, they often provide better long-term value due to their longer lifespan. The total cost of your window replacement will hinge on the specific styles, materials, and sizes you need. Transom windows are inexpensive with their simple size and straightforward form factor, while a custom-cut arch window in a master suite will cost more. If you're unsure, a window specialist can help you decide which options are most suitable for your home.

To help you form a rough estimate, this table shows the typical cost of the most common residential window types.

Window TypesAverage Cost
Arched$224-$1376
Awning$324-$903
Bay$747-$5545
Custom$332-$924
Casement$258-$1499
Double-hung$120-$780
Egress$221-$553
Glass Block$44-$561
Picture$194-$1437
Single-hung$87-$1478
Skylight$110-$1335
Sliding$254-$1293
Storm$52-$365
Transom$271-$566

Window Material Cost

You'll also need to select a window material. Homeowners often choose a material based on the local climate, aesthetic preferences and energy efficiency objectives. Aluminum windows are perfect for sleek, modern designs, but they cost more up-front. Wood windows cost less up-front, but you'll need to invest in regular maintenance to prevent the frame from wear and warping. Vinyl is readily available and tends to cost less, but don't underestimate its strong durability and low maintenance needs.

Window TypesAverage Cost
Aluminum$52-$1478
Composite$534-$1199
Fiberglass$87-$747
Vinyl$179-$1663
Wood$267-$1499

Other Window Replacement Costs

Ask each window installer you're evaluating about warranty fees, labor costs, and permit fees. This will help you get a better picture of the overall expenses involved in the project.

Experience and Training

The longer a window company has been operating, the better its workmanship will likely be. Talk with a company representative to learn more about its public and private credentials, guarantees, and experience. Company websites often keep photo galleries showcasing previous work technicians have done.

Licensing and Credentials

A California window installer must be licensed as a General Building Contractor, Glazing Contractor and Window Coverings Contractor if it handles jobs valued at over $500. Each certification has its own test and experience requirements. If a contractor is caught working without a license, they'll have to pay substantial fines.

Types of Windows Offered

There are a variety of replacement window types you can choose from, and it's essential to find a company that focuses on installing the ones you want. Check a company's website and reviews for any of these types:

Equally important to your desired windows' shape is their framing. Ask your window installer if it offers the frame material you want, such as composite, fiberglass, aluminum, vinyl, or wood.

Customer Feedback

Perhaps the best way to prescreen window companies for your job is to see what previous customers have said about them. Read customer reviews on sites such as Google, Trustpilot, and Yelp. You can also view customer reviews and company ratings on the Better Business Bureau (BBB) website. Referrals can also help you in your company search. Ask each company you're interested in for a list of references, and talk to family and friends about who they use for window installations.


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Frequently Asked Questions About Window Replacement in Ontario

What are the benefits of hiring a window installer?

By working with a professional, you don't need to worry about making measurement mistakes or not having the right tools. A window installation crew is well-equipped with the right supplies and skills to do the job safely and precisely. You can also get fast, informed answers to your questions and tailored help to maximize your new windows' potential.

Do I need a building permit to replace my home's windows?

Window replacement may involve securing permits, depending on your local building codes and regulations. Some municipalities mandate permits for window replacement projects when they involve structural changes or alterations to the window openings. We recommend you check with your local building department or consult a professional before undertaking any window replacement work.

Do window companies have guarantees or warranties for their work?

We strongly recommend choosing a window company that backs their work with a guarantee for your protection. These plans usually cover workmanship errors, manufacturer defects, and material flaws for a short time after installation. Verify the warranty terms with a window company before signing the contract.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Window Resources

National Windows Company Ranking Methodology

Sources

Energy Star