27 Best Window Replacement Companies in Angwin, CA (Mar 2023)
Window Companies Near Me
Thinking of improving your home's energy efficiency? The top window replacement companies can help.
We analyzed all the top window installers in Angwin 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 March 14, 2023
Why you can trust EcoWatch
Whether you're doing renovations or have old windows, windows play a vital role in conserving your home's energy. During the hot summer months, the last thing you want is your cool air to leak out of your outdated, drafty windows.
Replacement windows improve your home's insulation, not only making you and your family more comfortable during the summer and winter, but also saving you some money and helping the environment.
Efficient windows are particularly important in Angwin, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $518 each year.
Best Affordability
Window World
- Lifetime warranty
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Window Replacement Companies in Angwin
The EcoWatch Reviews team evaluated dozens of installers in Angwin to find the best window installation companies for our readers. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

Window World
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Lifetime warranty
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Low prices relative to competitors
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Large serice area
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Quality of service will depend on your area
Window World offers windows expertise in Angwin. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the industry, and it currently provides services to 200 locations nationwide.
It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Angwin?Prices are not available on Window World's website, as the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate information.

Renewal by Andersen
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Award-winning company
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Great industry reputation
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Member of US Green Building Council
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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 been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. The company has plenty of glowing reviews from customers on online review websites.
It has established itself as a company 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 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 be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Angwin?Although pricing is not available on Andersen's website, 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 request a free quote from the company.

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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Limited additional services
Milgard Windows & Doors offers the best local installation in Angwin. This company has been operating since 1962 and currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Many positive reviews from customers online back the provider's reputation.
It 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 WindowsThere are a wide range of window types available from Milgard Windows & Doors, some of which are Energy Star products. The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised.
How much does Milgard Windows & Doors cost in Angwin?Milgard does not outline prices on its website, but it offers different kinds of windows at varying price points. If you'd like more accurate pricing information, you can ask for a quote on the company's website.

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 is 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 industry for about 20 years. Its reputation is backed by a considerable amount of positive reviews from customers online.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the company for you.
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 Angwin?Universal doesn't have any cost information listed on its 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. You can request a free quote on its website for more information about the cost.
We've recommended installers with shining reputations, but keep in mind some national companies have independently owned locations in Angwin, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company reviewed.
More Window Replacement Companies in Angwin
The Glass Guru
Fairfield, CA-
No-fee Quotes
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Consistent Workmanship
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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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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
Window Replacement Vallejo
Vallejo, CA-
Dependable Service
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No-fee Quotes
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Educational Website
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Good Customer Service
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-
Helps Educate Customers
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Excellent Customer Service
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Reliable Appointment Windows
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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
Northwest Exteriors
Santa Rosa, CA-
No-Hassle Pricing
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Helps Educate Customers
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Free Quotes
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Reliable Service
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-
Dependable Service
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Free Quotes
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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 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-
Consistent Workmanship
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Timely Service
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No-fee Quotes
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No-Hassle Pricing
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
California Glass of Vallejo, Inc.
Vallejo, CA-
Dependable Service
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No-Hassle Pricing
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Award-Winning
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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 Windows
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Full-Service Installations
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Business Windows
Vallejo Glass Inc.
Vallejo, CA-
No-fee Quotes
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Helps Educate Customers
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Excellent 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-
Reliable Service
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Good Customer Service
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Helps Educate Customers
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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Commercial Windows
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Sliding Glass
Novato Glass Inc
Novato, CA-
No-Hassle Pricing
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Free Quotes
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Helps Educate Customers
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Excellent 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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Commercial Windows
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Sliding Glass
ClimatePro
Rohnert Park, CA-
Free Quotes
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Excellent Customer Service
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Educational Website
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Timely Service
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
The Window Cleaning Specialists, LLC
Santa Rosa, CA-
Educational Website
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Price Transparency
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Reliable Service
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Jack Smith Glass & Sash Inc.
Santa Rosa, CA-
Educational Website
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Free Quotes
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Reliable Service
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Sliding Glass
All Window & Door
Petaluma, CA-
Educational Website
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Free Quotes
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Good Customer Service
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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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Aluminum Window Frames
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Business Windows
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Sliding Glass
Roofing | Windows | Landscaping | Concrete Grinding | Eagle Construction
Vallejo, CA-
Excellent Customer Service
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No-Hassle Pricing
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Dependable Service
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Educational Website
Services Offered
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Custom Windows
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Energy-Efficient Options
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Sliding Glass
Tom's Glass Co.
Vacaville, CA-
Educational Website
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No-fee Quotes
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Consistent Workmanship
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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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Double-Hung
Home Services at The Home Depot
Vacaville, CA-
Helps Educate Customers
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Price Transparency
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Dependable Service
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Excellent Customer Service
Services Offered
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Custom Windows
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Fast Delivery
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Glass Showers
See Through Glass and Door
Petaluma, CA-
Free Quotes
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Helps Educate Customers
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Heavy Glass
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Custom Window Designs
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Commercial Windows
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Sliding Glass
Glass Shop of the North Bay
Petaluma, CA-
Good Customer Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Doors
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Full-Service Installations
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Custom Windows
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Tempered Glass
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Residential Windows
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Commercial Windows
B & D Windows & Sash Co
Clearlake Oaks, CA-
Reliable Appointment Windows
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Price Transparency
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Free Quotes
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Helps Educate Customers
Services Offered
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Custom Window Designs
American Window Systems, Inc.
Napa, CA-
Price Transparency
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Educational Website
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Aluminum Window Frames
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Commercial Windows
Santa Rosa Windows & Glass
Santa Rosa, CA-
Good Customer Service
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Helps Educate Customers
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Custom Windows
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Glass Showers
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Energy-Efficient Options
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Sliding Glass
Decor Shower Door & Glass Co
Napa, CA-
Excellent Customer Service
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Price Transparency
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Educational Website
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Free Quotes
Services Offered
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Custom Windows
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Sliding Glass
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Commercial Windows
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Double-Hung
Denton's Glass Co.
Santa Rosa, CA-
Price Transparency
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No-fee Quotes
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Good Customer Service
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Sliding Glass
Golden West Glass Company, Inc
Sonoma, CA-
Educational Website
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No-Hassle Pricing
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Good Customer Service
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Free Quotes
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
B & L Glass
Santa Rosa, CA-
Helps Educate Customers
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Good Customer Service
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No-Hassle Pricing
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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Full-Service Installations
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Commercial Windows
Dee Jay's Sash & Glass, Inc.
Santa Rosa, CA-
Good Customer Service
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No-Hassle Pricing
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Free Quotes
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
How Installing Energy-Efficient Windows in Angwin Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here are more ways switching out your windows could benefit you:
- Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Upgrading your windows can make your home more comfortable and also help raise the value of your property if you decide to sell.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 117 pounds.
- Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of household energy use. Switching to energy-efficient models can help lower how much you have to pay, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Angwin
Windows come in varying shapes and sizes, so costs and services will vary considerably. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
On average, homeowners in Angwin can expect that most window installations will range from $250 to $1,200, with the most common installations sitting at around $600. But costs will vary significantly based on the current condition of your home, the number of windows you need, the quality of your products and your location. Many window companies also offer replacement door installations and other add-ons like baths, shutters, coating and more. These extra services will increase overall project costs.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 a year when replacing single-pane windows and between $27 and $197 a year when replacing double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
We recommend getting free quotes from several window installation companies to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
The first question to ask yourself when planning a window installation is: Do you need a full-frame installation or a pocket installation?
Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are typically done when you want a different style for your windows or when it has a great amount of damage. Full-frame installations require more time and labor and will increase overall costs. A pocket installation entails replacing a window within the old frame. This means instead of taking out the whole unit and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company can advise you on the best type for your project. In Angwin, the decision will mostly be based on how much damage there is currently and how old your existing frames are.
Best Affordability
Window World
- Lifetime warranty
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
How We Choose the Best Window Installers in Angwin
EcoWatch reviews are different from other reviews, as we evaluate these companies through a sustainability lens. We've decided to review the best window installation companies in Angwin mostly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Angwin, we only included companies that serve the city. There are certainly other reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Angwin.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company included in our guide to make sure its contractors are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don't have good feedback about their experience with a certain 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 awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for quite some time. 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.
Angwin, CA Window Replacement FAQs
How much does a window install cost?
The national average cost to install one window is about $600 but can range from $200 to $1,200, depending on several factors. The price is typically influenced by the size of the window, the type and material of the window and the location of your property. 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 kind of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.
Can I replace my own windows?
Even though you can install your own windows, doing so is time-consuming and requires a lot of handiness. Using a window installation company can help ensure that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.
How long does window installation generally take?
Each window takes around 30 minutes to install based on the type of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to make sure 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 most important is that the weather should be dry.