16 Best Window Companies in Flagstaff, AZ (2023 Reviews)
Thinking of improving your property's insulation? The top window replacement companies can help.
We analyzed all the top-rated window companies in Flagstaff and selected the best 16 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Flagstaff may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might think. When it's the middle of summer, your old and drafty windows could be making your home harder to cool and costing you more in power bills.
Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you some money and helping the environment.
Unlike other sites, EcoWatch ranks window installation companies on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Flagstaff
The EcoWatch Reviews team evaluated dozens of window installation companies across Flagstaff to narrow our list down to the best ones. The installers in this article scored best in our review categories, such as energy-efficient offerings, local expertise, availability, customer service, price and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Flagstaff. Window World has about 27 years of experience in the window replacement sector.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the provider for you.
Energy Efficiency of Window World WindowsWindow World caters to eco-conscious consumers by providing energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Flagstaff?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can ask for a quote on the company’s website.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has become one of the most reputable companies in the business. Hundreds of positive reviews on customer review websites back the provider's reputation.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsA handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019. Not all of Andersen’s windows are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Flagstaff?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to ask for a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Flagstaff. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been operating since 2002 and currently provides services to 27 states nationwide. The company has a lot of glowing reviews from customers online.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products. Not all of Universal’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Flagstaff?Pricing details are not available on Universal’s website because the cost of window replacement depends on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. If you’d like to know for sure, you can inquire about a quote on the company’s website.
We strive to be unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not affect our reviews.
More Window Companies in Flagstaff
Renewal by Andersen Window Replacement
Prescott, AZ-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Sliding Glass
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Energy-Efficient Options
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Fast Delivery
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Bay Windows
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Double-Hung
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
Window World of Northern Arizona
Cottonwood, AZ-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Bay Windows
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Residential Windows
DaBella
Flagstaff, AZ-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Double-Hung
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
THE ROCK Glass & Mirror Company
Flagstaff, AZ-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Aluminum Window Frames
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Window Repair
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Double-Hung
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Glass Showers
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Commercial Windows
Barden Home Builders
Flagstaff, AZ-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
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Double-Hung
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Fast Delivery
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Glass Showers
Demers Glass, LLC.
Flagstaff, AZ-
Educational Website
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Sliding Glass
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Commercial Windows
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Window Replacement
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Glass Showers
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Residential Windows
Home Services at The Home Depot
Flagstaff, AZ-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Stained Glass
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Window Replacement
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Fast Delivery
B3 Construction
Flagstaff, AZ-
Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Residential Windows
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Window Replacement
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Commercial Windows
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Custom Window Designs
Windows N More
Prescott Valley, AZ-
Price Transparency
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Good Customer Service
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Free assessment
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Timely Service
Services Offered
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Glass Showers
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Residential Windows
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Window Replacement
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Window Repair
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Double-Hung
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Energy-Efficient Options
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Custom Window Designs
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Sliding Glass
Dreamstyle Remodeling
Prescott Valley, AZ-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Glass Showers
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Window Replacement
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Custom Window Designs
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Double-Hung
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Bay Windows
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Residential Windows
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Full-Service Installations
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Fast Delivery
Prescott Window and Door
Prescott, AZ-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Sliding Glass
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Residential Windows
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Window Replacement
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Custom Window Designs
Triple E Construction, Inc
Prescott, AZ-
Free assessment
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Window Replacement
Milgard Windows & Doors
Prescott Valley, AZ-
Free assessment
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Timely Service
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Residential Windows
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Bay Windows
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Window Replacement
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Sliding Glass
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Double-Hung
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Aluminum Window Frames
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Custom Window Designs
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Energy-Efficient Options
Central Arizona Remodeling
Prescott Valley, AZ-
Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Double-Hung
Home Services at The Home Depot
1030 S, AZ-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Stained Glass
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Commercial Windows
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Residential Windows
Home Services at The Home Depot
Prescott Valley, AZ-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Stained Glass
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Commercial Windows
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Glass Showers
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Residential Windows
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Bay Windows
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Fast Delivery
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Window Replacement
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Custom Window Designs
Calculate how much you can expect to pay for window installation and replacement in Flagstaff, AZ using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Flagstaff Saves You Money
By upgrading to energy-efficient windows, you and your family can benefit in several ways, including:
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- More efficient energy use in your home: Because the summers can get quite hot in Flagstaff, homeowners usually rely on their air conditioner during that time. Energy-efficient windows decrease how much cool air is lost through your windows, which makes it easier to keep your house cool.
- Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
- Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Replacing your windows with energy-efficient models can help lower that number, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Flagstaff
Let's go over the cost of window replacement and the types of services offered by installers.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. These numbers vary depending on the specifics of your installation, such as the location of your home, size, type, number of windows, material and more.
It's important to bear in mind that windows with higher efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Flagstaff homeowners $412+ a year when replacing single-pane windows.
Getting free quotes from several installers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has significant deterioration. Full-frame installations involve more time and labor and will increase overall costs. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations more simple and affordable. However, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.
Your window replacement company should be able to help you choose what's best for your needs. In Flagstaff, the decision will mostly be based on how old your windows are and if there's any damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional assess your frames and window sills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Flagstaff
In our hunt to find the most reliable, eco-friendly window installers in Flagstaff, the EcoWatch team chose the above companies as the top window installation companies in the city. Along with energy efficiency, we analyzed several window installers in Flagstaff and ranked them based on the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve Flagstaff so you can find the best window installation company near you.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company in our guide to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have positive things to say about their service from a certain window installation company, you won't see it featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a hefty investment, so you'll want to be certain that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a proven track record in the industry. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Flagstaff, AZ Window Replacement FAQs
How much does a window install cost?
The national average cost to install a single window is around $600 but can range between $200 and $1,200, based on a few different factors. The price is usually influenced by the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What are the most common kinds of replacement windows?
The most common kinds of windows for homes include: double-hung and single-hung windows, bay windows, transom windows, casement windows, awning windows, slider windows and picture windows.
Can I install my own windows?
While you can install your own windows, doing so requires a lot of time and handiness. Using a window installation company can help guarantee that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
Should I replace all my windows at once?
If your windows are greater than 20 years old, you most likely need to replace all of them. By that point, they are typically less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.