27 Best Window Replacement Companies in Napa, CA (Jan 2023)
Window Companies Near Me
Looking to improve your property's energy efficiency? The best window replacement companies can help.
We analyzed all the top window installers in Napa and selected the top 27 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated January 12, 2023
Why you can trust EcoWatch
A guide on the best window replacement companies in Napa may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might realize. According to the Department of Energy, heat or cool air lost through old or damaged windows could represent 25-30% of household energy climate control costs.
That's bad news for your wallet and the environment, but one of the best window installation companies can help with that.
So if you're constructing a new home, renovating or replacing your windows in Napa, you've found the best place to get started.
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Great industry reputation
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
Best Window Replacement Companies in Napa
The EcoWatch team researched dozens of window providers across Napa to narrow our list down to the top ones. The providers in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
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EnergyStar Partner
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Low prices relative to competitors
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Great industry reputation
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Quality of service will depend on your area
Window World offers windows expertise in Napa. Window World has around 27 years of industry experience, and it currently provides services to 200 locations nationwide. Its reputation is backed by many positive reviews on customer review websites.
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, this may be the perfect provider for you.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. 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 Napa?While prices are not available on Window World's website, it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Entails hiring third-party contractors
Milgard Windows & Doors provides the best local installation in Napa. Milgard has about 60 years of experience in the window installation industry.
You may want to consider opting for Milgard if you're looking for a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Milgard representative when inquiring about services.
How much does Milgard Windows & Doors cost in Napa?Prices aren't available on Milgard's website, but it offers different kinds of windows at varying price points. If you'd like more accurate information, you can inquire about 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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More expensive than competition
Renewal by Andersen offers the best availability in Napa. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement industry. Hundreds of positive reviews on customer review websites back the company's reputation.
Andersen may be the company for you if you want one that 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 WindowsRenewal by Andersen appeals to eco-conscious consumers by providing energy-efficient window offerings. A 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.
How much does Renewal by Andersen cost in Napa?Andersen doesn't have any prices available 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. Getting a free quote on its website is the best way to know for sure.

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 provides the best warranty in Napa. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window installation business for about 20 years. The company has plenty of glowing reviews from customers online.
You may want to consider choosing Universal if you're looking for a installer that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct's commitment to sustainability can be seen in its energy-efficient window offerings. The 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.
How much does Universal Windows Direct cost in Napa?Prices aren't available on Universal's website, but 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. Requesting a free quote on its website is the best way to know for sure.
We've recommended installers with shining reputations, but keep in mind some national companies have independently owned locations in Napa, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company we reviewed.
More Window Replacement Companies in Napa
The Glass Guru
Antioch, CA-
Free Quotes
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Award-Winning
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Excellent Customer Service
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Reliable Service
Services Offered
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Glass Showers
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
The Glass Guru
Fairfield, CA-
Helps Educate Customers
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Price Transparency
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Good Customer Service
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Free Quotes
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
Window Replacement Berkeley
Berkeley, CA-
Good Customer Service
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Dependable Service
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Arrives on Time
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Educational Website
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Best Exteriors
Oakland, CA-
No-fee Quotes
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Helps Educate Customers
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Consistent Workmanship
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Vallejo
Vallejo, CA-
Price Transparency
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Free Quotes
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Helps Educate Customers
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Dependable Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Oakland
Oakland, CA-
Helps Educate Customers
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Reliable Service
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Walnut Creek
Walnut Creek, CA-
Free Quotes
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Helps Educate Customers
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Timely Service
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Concord
Concord, CA-
Consistent Workmanship
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Free Quotes
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Excellent Customer Service
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Arrives on Time
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Best Exteriors
Oakland, CA-
Good Customer Service
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Dependable Service
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Free Quotes
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Vacaville
Vacaville, CA-
Educational Website
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Timely Service
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Dependable Service
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No-fee Quotes
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Richmond
Richmond, CA-
No-Hassle Pricing
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Educational Website
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Free Quotes
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Reliable Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Bestoff Windows & Construction
Concord, CA-
Timely Service
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No-fee Quotes
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Dependable Service
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Price Transparency
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Contra Costa Plate & Mirror Co
Pacheco, CA-
Dependable Service
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No-fee Quotes
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Tempered Glass
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Custom Windows
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Business Windows
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Double-Hung
The Window Specialists, Inc.
Oakland, CA-
Reliable Service
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No-Hassle Pricing
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Reliable Appointment Windows
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Energy-Efficient Options
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Commercial Windows
Lafayette Glass Company
Lafayette, CA-
No-fee Quotes
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Educational Website
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Dependable Service
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Arrives on Time
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Sliding Glass
Northwest Exteriors
Santa Rosa, CA-
Reliable Service
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No-fee Quotes
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Price Transparency
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Helps Educate Customers
Services Offered
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
Save Energy Company
Petaluma, CA-
No-Hassle Pricing
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Arrives on Time
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Helps Educate Customers
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Reliable Service
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Affordable Windows Vacaville
Vacaville, CA-
Helps Educate Customers
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No-Hassle Pricing
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Arrives on Time
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Good Customer Service
Services Offered
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Aames Windows & Doors Inc
Alamo, CA-
No-fee Quotes
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Consistent Workmanship
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Build Glass Company - Residential & Commercial Glass Repair Services
Richmond, CA-
Price Transparency
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Consistent Workmanship
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Good Customer Service
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Free Quotes
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
California Glass of Vallejo, Inc.
Vallejo, CA-
Excellent Customer Service
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Price Transparency
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Dependable Service
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Reliable Appointment Windows
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Window Designs
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Full-Service Installations
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Commercial Windows
Dan's Glass Inc
Concord, CA-
Helps Educate Customers
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No-Hassle Pricing
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Arrives on Time
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Good Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Dan's Glass Inc
10+ years in business · Benicia, CA-
Price Transparency
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Reliable Appointment Windows
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Educational Website
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Reliable Service
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Vallejo Glass Inc.
Vallejo, CA-
Educational Website
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Free Quotes
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Good Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Business Windows
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Aluminum Window Frames
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Glass Showers
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Energy-Efficient Options
R & S Glazing Specialties
American Canyon, CA-
Educational Website
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Reliable Service
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Heavy Glass
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
CWD Remodels & Windows
Concord, CA-
No-fee Quotes
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Educational Website
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Excellent Customer Service
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Reliable Service
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
Windows & Beyond
Concord, CA-
Consistent Workmanship
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No-Hassle Pricing
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Excellent Customer Service
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Timely Service
Services Offered
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Custom Windows
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Residential Windows
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Energy-Efficient Options
How Installing Energy-Efficient Windows in Napa Saves You Money
By upgrading to energy-efficient windows, you and your family can enjoy several benefits, including:
- Decrease your carbon footprint: By using less energy once you upgrade to Energy Star certified windows, you'll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out harmful UV rays.
- Save on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of household energy use. Upgrading to energy-efficient models can help lower that amount, therefore saving you about 12% more on your bills.
- Protect your investment: When your home is on the older side, your windows could also be outdated or damaged. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
Estimated Cost of Window Replacement in Napa
Let's take a look at the cost of updating your windows and the types of services offered by installers.
How Much Do New Windows Cost?
Generally, homeowners in Napa can anticipate that most replacement window installations will cost between $250 and $1,200, with the average cost sitting at around $600. This is because of the fact that window installations are based on a variety of factors specific to your home, like the size, material and number of windows you need to install, as well as where your property is located.
It's important to keep in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in Energy Star certified windows can save Napa homeowners $655+ a year when replacing single-pane windows.
The cost of your window installation will also vary depending on the type of material you choose for the frames. Wood windows are usually the most expensive, but it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
When considering window installations, there are generally two kinds that your installer will have: full-frame and pocket installations.
Full-frame installations are necessary when you want a new style or your window has a lot of deterioration. With this service, your professionals will replace the full window, including the frame, sill and trim. A pocket installation involves replacing a window within the existing frame. This means instead of removing the whole window and rebuilding it, the installer will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're unsure which window installation service you need, your installer can assist you. In general, the decision is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Great industry reputation
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
How We Choose the Best Window Installers in Napa
In our hunt to make your home improvements easier and more eco-friendly in Napa, the EcoWatch team chose the above companies as the top window installation companies in the city. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings based on the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve Napa so you can find a quality window installation company near you.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer included on this list to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including quality of parts, cost, warranty, professionalism, quality of installation and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want 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, windows are a hefty investment, so you'll want to be certain that investment is protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Napa, CA Window Replacement FAQs
How much should window installation cost?
The average cost of installing a single window can range from $450 to $650. There are many factors that influence the cost, including local labor costs, how energy-efficient the windows are, the materials used in designing the windows, your property's location, styles and sizes of windows and the number of windows.
Which type of window should I get?
A window's energy efficiency is affected by a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
What do window installation companies do?
Window installation professionals visit your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation.
What time of year is the best time to replace my windows?
Replacement windows can be installed at any time, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the house, so the temperature outside doesn't necessarily matter that much. What's more important than the temperature is that the weather should be dry.
How often should you replace your windows?
Windows usually have a lifespan of 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them checked by an expert to see if they are in need of a repair or replacement.