20 Best Window Companies in Mill Valley, CA (2024 Reviews)

When you need to upgrade your windows, our list of the best window installation companies can help you find the right provider for you.

We analyzed all the top-rated window companies in Mill Valley and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated February 01, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s energy efficiency can also have a big impact on home energy conservation. During the summer months, the last thing you want is your cool air to leak out of your outdated windows.

That’s bad news for your bank account and the environment, but one of the top window installation companies can help you with that.

We’ve put together this list of the top installation companies to help you in your search, so you can not only take advantage of brand-new windows, but also save money on your electricity bills.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in Mill Valley

The EcoWatch Reviews team assessed dozens of window providers across Mill Valley to narrow our list down to the top ones. The providers we’ve included in this article scored best in our categories, including energy-efficient offerings, price, availability, customer service and more.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has proved to be one of the best companies in Mill Valley.

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 Windows

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. Not all of Andersen’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Mill Valley?

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. You can ask for a free quote on its website for more information about the cost.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation industry, and it has proved to be one of the best companies in Mill Valley.

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 Windows

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Window World cost in Mill Valley?

Window World doesn’t have any prices available on its website, but 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 logo
FAST QUOTE
as little as 30 seconds
Excellent Reputation

Milgard Windows & Doors

★★★★★
BBB Rating: A
Locations: West Coast
Founded: 1962
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Wide network of installers
  • Pros icon Lifetime warranty available
Cons:
  • Pros icon Entails hiring third-party contractors
  • Pros icon Limited additional services

Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has 60 years of experience in the window installation industry, and it has proved to be one of the best companies in Mill Valley.

It has established itself as 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 Windows

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. Not all of Milgard’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Milgard Windows & Doors cost in Mill Valley?

Milgard doesn’t have any prices available on its website, but it offers different kinds of windows at varying price points. You can ask for a free quote on its website for more information about the cost.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon 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. This company has 20 years of experience in the window installation industry, and it has proved to be one of the best companies in Mill Valley.

It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

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. Not all of Universal’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Universal Windows Direct cost in Mill Valley?

Universal doesn’t have any prices available 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 ask for a free quote on its website for more information about the cost.

We try to stay unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Companies in Mill Valley

Renewal by Andersen of San Francisco

Hayward, CA
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Skylights
  • Service icon Window Install & Replacement
  • Service icon Commercial Windows
  • Service icon Andersen
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Storm Doors

Website: https://www.renewalbyandersen.com/window-company/890-san-francisco-ca/retailer
Address: 30806 Santana St, Hayward, CA 94544
Phone: (510) 803-3110

Window Factory

Greenbrae, CA
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Vinyl Frames
  • Service icon Aluminum Frames
  • Service icon Bay Windows
  • Service icon Fiberglass Frames
  • Service icon Wood Frames

Website: http://www.bayareawindowfactory.com/
Address: 2100 Redwood Hwy, Greenbrae, CA 94904
Phone: (415) 924-3300

Ace Glass Company

San Francisco, CA
4.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Repair
  • Service icon Storm Windows
  • Service icon Window Repair
  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Tempered Glass
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors
  • Service icon Mirrors
  • Service icon Glass Showers

Website: http://sfaceglass.com/
Address: 381 11th St, San Francisco, CA 94103
Phone: (415) 395-0806

The Sliding Door Company

San Francisco, CA
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Custom Glass
  • Service icon Glass Doors
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement

Website: https://www.slidingdoorco.com/san-francisco/
Address: 680 8th St #163, San Francisco, CA 94103
Phone: (415) 626-2622

Sunset Glass Inc

San Francisco, CA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Marvin
  • Service icon Window Install & Replacement
  • Service icon Mirrors
  • Service icon Aluminum Frames
  • Service icon Commercial Windows
  • Service icon Vinyl Frames
  • Service icon Milgard
  • Service icon Fiberglass Frames
  • Service icon Ply Gem
  • Service icon Wood Frames

Website: http://www.sunsetglassinc.com/
Address: 4301 Irving St, San Francisco, CA 94122
Phone: (415) 664-1626

Novato Glass Inc

Novato, CA
4.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Skylights
  • Service icon Bay Windows
  • Service icon Mirrors
  • Service icon Sliding Glass Doors
  • Service icon Custom Glass
  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement

Website: http://novatoglassinc.com/
Address: 1020 Reichert Ave, Novato, CA 94945
Phone: (415) 897-5117

Charles Window & Door Company

San Rafael, CA
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Bay Windows
  • Service icon Milgard
  • Service icon Aluminum Frames
  • Service icon Window Install & Replacement
  • Service icon Simonton
  • Service icon Fiberglass Frames
  • Service icon Glass Doors
  • Service icon Marvin
  • Service icon Window Repair

Website: https://www.charleswindows.com/
Address: 1505 Francisco Blvd E, San Rafael, CA 94901
Phone: (415) 233-6932

Glass & Sash Inc.

San Rafael, CA
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Skylights
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Mirrors

Website: http://www.glassandsash.com/
Address: 425 Irwin St, San Rafael, CA 94901
Phone: (415) 456-2240

Sky's Windows Screens & Mirrors

Richmond, CA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Mirrors
  • Service icon Window Install & Replacement
  • Service icon Window Repair
  • Service icon Bay Windows

Website: https://skyswindows23.wixsite.com/skyswondowsscreensmi
Address: 5th St, Richmond, CA 94804
Phone: (510) 689-6025

Acacia Glass Co

San Francisco, CA
2.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Custom Glass

Website: http://www.acaciaglassco.com/
Address: 3452 Geary Blvd, San Francisco, CA 94118
Phone: (415) 661-4591

Home Services at The Home Depot

San Rafael, CA
2.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Impact Windows
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Window Install & Replacement
  • Service icon Storm Doors

Website: https://www.homedepot.com/l/San-Rafael/CA/San-Rafael/94901/657/services
Address: 111 Shoreline Pkwy, San Rafael, CA 94901
Phone: (415) 323-5640

Pella Windows & Doors of Northern California

San Francisco, CA
3.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Glass Doors
  • Service icon Pella
  • Service icon Bay Windows
  • Service icon Double-Hung

Website: https://www.pellabranch.com/northern-california/showrooms/san-francisco/
Address: 850 S Van Ness Ave Suite 13, San Francisco, CA 94110
Phone: (628) 400-5980

Wood Windows and Doors Corporation

San Pablo, CA
2.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Wood Frames

Website: https://www.woodwindowsndoors.com/
Address: 210 Center Ct, San Pablo, CA 94806
Phone: (510) 363-3242

A-Taylor Made Window

Richmond, CA
3.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Marvin
  • Service icon Andersen
  • Service icon Pella
  • Service icon Window Install & Replacement
  • Service icon Milgard
  • Service icon Bay Windows
  • Service icon Mirrors
  • Service icon Simonton

Website: https://www.ataylormadewindow.com/
Address: 5327 Jacuzzi St #5E, Richmond, CA 94804
Phone: (510) 559-5530

Alan Siding & Windows

San Francisco, CA
2.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Wood Frames
  • Service icon Window Repair
  • Service icon Bay Windows
  • Service icon Window Install & Replacement

Website: http://alansiding.com/
Address: 1456 Market St, San Francisco, CA 94103
Phone: (415) 831-6447

Window Replacement Center

San Francisco, CA
2.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Custom Glass
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Vinyl Frames

Website: https://www.windowreplacementcontractor.com/
Address: 2500 38th Ave, San Francisco, CA 94116
Phone: (415) 926-2427

OCEAN SASH AND DOOR INC.

San Francisco, CA
3.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Aluminum Frames
  • Service icon Window Install & Replacement
  • Service icon Double-Hung

Website: http://www.oceansashanddoor.com/
Address: 2730 Oakdale Ave, San Francisco, CA 94124
Phone: (415) 863-1256

The Window and Door Shop, Inc.

San Francisco, CA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Skylights
  • Service icon Milgard
  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Marvin
  • Service icon Sliding Glass Doors

Website: https://www.wdssf.com/
Address: 185 Industrial St, San Francisco, CA 94124
Phone: (415) 282-6192

Rhino Siding & Window Replacement

San Francisco, CA
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Bay Windows
  • Service icon Sliding Glass Doors
  • Service icon Double-Hung
  • Service icon Window Install & Replacement
  • Service icon Vinyl Frames

Website: http://www.rhinosidingwindows.com/
Address: 100 Girard St, San Francisco, CA 94134
Phone: (415) 985-1961

Old Town Glass

Novato, CA
2.9
★★★★★

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Marvin

Website: http://www.otglass.com/
Address: 700 Grant Ave, Novato, CA 94945
Phone: (415) 897-0088
Mill Valley Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Mill Valley, CA using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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 Mill Valley Saves You Money

By switching to energy-efficient windows, you and your family can take advantage of several benefits, such as:

  • Decrease your carbon footprint: By using less energy after upgrading 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: The low-emissivity coatings on some energy-efficient windows filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
  • Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of household energy use. Replacing your windows with energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Mill Valley

Windows come in varying shapes, styles and purposes, so costs and services will vary greatly depending on your project. Below, we detail the average cost and services that you can get from window installers.

How Much Do New Windows Cost?

The typical cost to install one window is about $600 but can range anywhere from $200 to $1,200. But costs will differ considerably depending on the current condition of your home, the number of windows you need, your location and the quality of your products. Many window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. These extra services will increase 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 Mill Valley homeowners $451+ a year when replacing single-pane windows.

Requesting free quotes from multiple installers is the best way to find out which one will work best for your budget.

What Services do Window Installers Offer?

The first question to ask yourself when considering a window replacement is: Should you get a full-frame installation or a pocket installation?

A full-frame installation is a replacement of the full window. It involves taking out the old window, the windowsill, and the exterior and interior trim. It also involves extra materials, like insulation and drip edges, which raise the overall cost of the project. It’s also worth noting that it’s not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and won’t cost as much, but you can’t do this kind of installment if you have any pre-existing rot or water damage.

Your window installation company should be able to help you understand what’s best for your needs. In Mill Valley, the decision will mostly be based on how old your windows are and if there’s any damage. Wood can decay if it’s not maintained properly over the years, so it’s good to have a professional evaluate your frames and window sills.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Mill Valley

EcoWatch reviews differ from other reviews because we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in Mill Valley and ranked them based on the following methodology:

Service Area

Because this is a guide for Mill Valley, we only included companies that provide services to the city. There are certainly other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Mill Valley.

Work Quality

When selecting new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the type of window you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent customer feedback to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including quality of installation, professionalism, quality of parts, cost, warranty and more.

Cost

This one is a give-and-take: as with most services, cheap window installation companies won’t always provide the highest quality service. Still, we want to make sure we’re highlighting companies that offer a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of Mill Valley’s climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of Mill Valley window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Mill Valley, CA Window Replacement FAQs

What is the average cost to install windows in a home?

The national average cost of replacing a single window is about $600 but can range between $200 and $1,200, depending on a variety of factors. The price is usually dependent on the location of your property, the type and material of the window and the size of the window. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

What are the most common kinds of replacement windows?

The most common types of windows for homes include: slider windows, picture windows, double-hung and single-hung windows, transom windows, awning windows, casement windows and bay windows.

Can I replace my own windows?

Although it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help guarantee that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.

Should I replace my windows all at the same time?

If you’re upgrading your windows to save on your energy bills, replacing all of the windows at once is the only way to see a noticeable difference. On the other hand, if you have only one or two windows that are damaged or leaky, you can replace just those.

How long does window installation usually take?

Since the average installation time of a window is 30 minutes, around 16 windows can be installed during an 8-hour work day.

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