20 Best Window Companies in San Lorenzo, CA (2023 Reviews)
Thinking about replacing your home's windows? We've got you covered in this list of the top window installation companies.
We analyzed all the top-rated window companies in San Lorenzo and selected the best 20 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 San Lorenzo may not seem like the most compelling article on EcoWatch, but trust us, windows impact your life more than you might think. When it's the middle of summer, your outdated and leaky windows could be making your home harder to cool and costing you more in power bills.
Installing new, efficient windows on your home can help you save money each month on your electric bills — and you can help the environment as well.
Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also balancing 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 San Lorenzo
The EcoWatch Reviews team researched dozens of installers in San Lorenzo to find the best window installation companies for our readers. The companies reviewed in this article scored best in our categories: energy-efficient offerings, price, customer service, availability 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 offers windows expertise in San Lorenzo. Window World has about 27 years of experience in the window installation sector. Its reputation is backed by all the positive reviews on customer review websites.
Window World may be the company for you if you're looking for one 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’s commitment to sustainability can be seen in its 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 San Lorenzo?Although pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to get 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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Entails hiring third-party contractors
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Limited additional services
Milgard Windows & Doors offers the best local installation in San Lorenzo. Milgard has about 60 years of experience in the window installation sector. Its reputation is backed by all the positive reviews on customer review websites.
Milgard may be the company for you if you're looking for one 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’s commitment to sustainability can be seen in its energy-efficient window offerings. 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 San Lorenzo?Although pricing is not readily available on Milgard’s website, it offers different kinds of windows at varying price points. The best way to get more accurate information is to get a free quote from the company.

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 offers the best availability in San Lorenzo. Andersen has about 27 years of experience in the window installation sector. Its reputation is backed by all the positive reviews on customer review websites.
Andersen may be the company for you if you're looking for 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’s commitment to sustainability can be seen in its 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 San Lorenzo?Although pricing is not readily 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 get more accurate information is to get 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 has the best warranty in San Lorenzo. This provider has 20 years of experience in the window installation industry, and it has proved to be one of the most respected companies in the business.
Universal may be the company for you if you're interested in one that 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 offerings are Energy Star certified, so be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Universal Windows Direct cost in San Lorenzo?Prices aren’t displayed 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 get more accurate information.
Please note that the following companies are national, which means the quality of customer service may depend on your local team. We have tried to stay unbiased and transparent by including both pros and cons for each provider.
More Window Companies in San Lorenzo
Renewal by Andersen of San Francisco
Hayward, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Window Replacement
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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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Custom Window Designs
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Residential Windows
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Sliding Glass
Pella Windows & Doors of Northern California
Hayward, CA-
Educational Website
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Free assessment
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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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Sliding Glass
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Window Replacement
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Residential Windows
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Custom Window Designs
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Bay Windows
Glass Doctor of The Bay Area
Hayward, CA-
Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Commercial Windows
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Window Replacement
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Window Repair
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Glass Showers
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Full-Service Installations
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Double-Hung
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Custom Window Designs
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Bay Windows
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Residential Windows
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Energy-Efficient Options
Sunlight Window and Door Systems, Inc.
Oakland, CA-
Timely Service
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Aluminum Window Frames
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Fast Delivery
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Window Replacement
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Residential Windows
Home Services at The Home Depot
Union City, CA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Stained Glass
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Window Replacement
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Fast Delivery
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Double-Hung
Dragon Glass and Doors
Hayward, CA-
Free assessment
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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Commercial Windows
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Stained Glass
CR Windows Inc
Hayward, 邮政编码:-
Free assessment
Services Offered
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Custom Window Designs
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Window Replacement
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Residential Windows
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Bay Windows
East Bay Glass
Oakland, CA-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Double-Hung
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Stained Glass
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Commercial Windows
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Custom Window Designs
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Bay Windows
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Window Replacement
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Energy-Efficient Options
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Residential Windows
Custom Exchange Windows
Pleasanton, CA-
Timely Service
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Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Window Replacement
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Energy-Efficient Options
Vinyl Casement Windows
Oakland, CA-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Window Replacement
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Double-Hung
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Residential Windows
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Sliding Glass
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Bay Windows
Best Exteriors
Oakland, CA-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Stained Glass
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Sliding Glass
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Bay Windows
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Double-Hung
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Window Replacement
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Glass Showers
Cal Coast Window & Door
Pleasanton, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Full-Service Installations
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Window Replacement
Roxy Glass
7401 Morton Ave # A, CA-
Good Customer Service
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Price Transparency
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Educational Website
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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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Double-Hung
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Bay Windows
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Fast Delivery
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Tempered Glass
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Commercial Windows
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Aluminum Window Frames
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Energy-Efficient Options
Custom Exteriors, Inc
Pleasanton, CA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Full-Service Installations
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Fast Delivery
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Bay Windows
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Sliding Glass
Alexander Company
Burlingame, CA-
Price Transparency
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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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Bay Windows
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Custom Window Designs
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Window Replacement
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Aluminum Window Frames
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Fast Delivery
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Window Repair
Quality Windows & Doors
Pleasanton, CA-
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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Full-Service Installations
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Bay Windows
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Custom Window Designs
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Glass Showers
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Window Replacement
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Double-Hung
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Residential Windows
Deluxe Windows , Inc
Burlingame, CA-
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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Fast Delivery
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Commercial Windows
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Energy-Efficient Options
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Bay Windows
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Residential Windows
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Custom Window Designs
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Window Replacement
APW Window Replacement
Pleasanton, CA-
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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Window Replacement
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Bay Windows
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Residential Windows
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Double-Hung
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Custom Window Designs
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Window Repair
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Commercial Windows
Bay Area Window Pros
Burlingame, CA-
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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Bay Windows
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Commercial 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
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Aluminum Window Frames
The Window Specialists, Inc.
Oakland, CA-
Educational Website
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Good Customer Service
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Timely Service
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Free assessment
Services Offered
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Residential Windows
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Bay Windows
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Fast Delivery
Calculate how much you can expect to pay for window installation and replacement in San Lorenzo, CA 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 San Lorenzo Saves You Money
Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to make the switch:
- Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out damaging UV rays.
- Save money on power bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you'll require less energy to heat or cool your home.
- More efficient energy usage in your household: In San Lorenzo where the winters can be very chilly, energy-efficient windows decrease the amount of heat that is lost through your windows, making it easier to keep your house warm.
- 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 San Lorenzo
Each window replacement company offers various services and has different prices based on a few factors.
How Much Do New Windows Cost?
Even though the typical to install one window is about $600, it can range anywhere from $200 to $1,200. But costs will vary significantly based on your location, the quality of your products, the number of windows you need and the current condition of your home. A lot of window companies also offer door installations and other add-ons like shutters, baths, coating and more. These extra services will increase your overall project costs.
It's important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save San Lorenzo homeowners $531+ 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 generally the most expensive, although 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?
There are generally two types of window installation services: full-frame and pocket installations.
Full-frame installations involve replacing the whole 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 a great amount of damage. Full-frame installations require more time and labor and will increase overall costs. Pocket installations are on the simpler end and won't cost as much, as they entail simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.
Your window installation company can advise you on the best type for your project. In San Lorenzo, the choice will mostly be based on the efficiency of your home and the condition of your existing frames.
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 San Lorenzo
In our search to make your home improvements easier and more eco-friendly in San Lorenzo, the EcoWatch Reviews team chose the above companies as the best window installation companies in the city. We've assessed the top window installation companies in San Lorenzo mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for San Lorenzo, we gave more points to companies that cover the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in San Lorenzo.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company featured in our guide to make sure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don't have good feedback about their experience with a certain window installation company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window companies may not provide the most quality service. On the other hand, we want to ensure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a hefty investment, so you'll want to make sure that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to San Lorenzo's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of San Lorenzo window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
San Lorenzo, CA Window Replacement FAQs
How much should window installation cost?
The average cost of installing one window ranges between $450 and $650. There are several factors that influence the cost, including styles and sizes of windows, the materials used in designing the windows, the number of windows, how energy-efficient the windows are, local labor costs and your property's location.
What kind of window is the most energy-efficient?
A window's energy efficiency is influenced 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 typically the most energy-efficient and are certified by the U.S. Department of Energy.
What services do window installation companies provide?
Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some companies install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
When is it time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may need to be replaced.