20 Best Window Companies in Clearlake, CA (2024 Reviews)

If you’re looking to get new windows, our list of the top window installation companies can help.

We analyzed all the top-rated window companies in Clearlake 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 June 24, 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.

A review of the best window replacement companies in Clearlake may not seem like the most captivating article on the EcoWatch site, but trust us, windows impact your life more than you might realize. Traditional, outdated windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that 25-30% of your home’s heat or cool air could be lost through your windows.

Installing energy-efficient windows on your house can help you save money each month on your power bills — and you can help the environment as well.

So if you’re building a new home, renovating or changing out old windows in Clearlake, you’ve found the best place to get started.

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Energy-Efficient Features

DaBella

★★★★★
4.0
  • Great warranty
  • Friendly sales representatives
  • Offers good financing options

Best Window Installation & Replacement Companies in Clearlake

The EcoWatch Reviews team evaluated dozens of installers that serve the Clearlake area to find the top window installation companies by our standards. The installers mentioned in this article scored the best in our review categories, such as energy-efficient offerings, local expertise, customer service, price, availability and more.

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 has windows expertise in Clearlake. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has over 27 years of experience in the industry, and it currently serves 200 locations nationwide. Its reputation is backed by a considerable amount of positive reviews on customer review websites.

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 make sure you mention that you’re interested in Energy Star windows when inquiring.

How much does Window World cost in Clearlake?

Although pricing information is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can inquire about a quote from the company.

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 has the best local installation in Clearlake. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has over 60 years of experience in the industry, and it currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Its reputation is backed by a considerable amount of positive reviews on customer review websites.

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 make sure you mention that you’re interested in Energy Star windows when inquiring.

How much does Milgard Windows & Doors cost in Clearlake?

Although pricing information is not readily available on Milgard’s website, it offers different kinds of windows at varying price points. For more accurate information on pricing, you can inquire about a quote from the company.

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 has the best availability in Clearlake. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has over 27 years of experience in the industry, and it currently serves nearly every state except Mississippi and West Virginia. Its reputation is backed by a considerable amount of positive reviews on customer 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 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 make sure you mention that you’re interested in Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Clearlake?

Although pricing information 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. For more accurate information on pricing, you can inquire about a quote from the company.

We aim to stay unbiased and transparent by mentioning pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.

More Window Companies in Clearlake

B & L Glass

Santa Rosa, CA
4.8
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Glass
  • Service icon Energy-Efficient Options
  • Service icon Glass Repair
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Skylights
  • Service icon Glass Doors
  • Service icon Mirrors

Website: https://blglass.com/
Address: 3175 Cleveland Ave, Santa Rosa, CA 95403
Phone: (707) 546-4143

Santa Rosa Window Tint

Santa Rosa, CA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.santarosawindowtint.com/
Address: 3721 Santa Rosa Ave b4, Santa Rosa, CA 95407
Phone: (707) 879-8468

Jack Smith Glass & Sash Inc.

Santa Rosa, CA
4.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Wood Frames
  • Service icon Window Repair
  • Service icon Glass Doors
  • Service icon Skylights

Website: http://www.jacksmithglass.com/
Address: 1050 N Dutton Ave, Santa Rosa, CA 95401
Phone: (707) 544-0640

Northwest Exteriors

Santa Rosa, CA
3.4
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: http://www.northwestexteriors.com/
Address: 3450 Airway Dr STE G, Santa Rosa, CA 95403
Phone: (707) 527-7770

GreenRun Construction - General Contractors

Santa Rosa, CA
3.4
★★★★★
  • 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 Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: http://www.greenrunusa.com/
Address: 2175 Bluebell Dr Suite E, Santa Rosa, CA 95403
Phone: (707) 812-7006

American Window Systems, Inc.

Napa, CA
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Skylights

Website: https://www.amwinsys.com/
Address: 1729 Action Ave suite b, Napa, CA 94559
Phone: (707) 244-7260

Round Tree Glass

Willits, CA
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Mirrors

Website: http://roundtreeglass.com/
Address: 24 Monroe St, Willits, CA 95490
Phone: (707) 459-6163

The Glass Guru

Yuba City, CA
4.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Window Repair
  • Service icon Fiberglass Frames
  • Service icon Storm/Impact Windows
  • Service icon Wood Frames
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Screen Repair
  • Service icon Glass Repair
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Metal Frames
  • Service icon Mirrors
  • Service icon Triple Pane Glass
  • Service icon Glass Doors
  • Service icon Tempered Glass
  • Service icon Glass Showers

Website: https://www.theglassguru.com/yuba-city-ca/
Address: 909 B, N George Washington Blvd, Yuba City, CA 95993
Phone: (530) 296-6323

Denton's Glass Co.

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

Services Offered

  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://dentonsglass.com/
Address: 957 W College Ave, Santa Rosa, CA 95401
Phone: (707) 708-0798

Buttacavoli Window & Door Inc

Marysville, CA
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.buttacavoliwindow.com/
Address: 11 E 10th St, Marysville, CA 95901
Phone: (530) 741-2619

Dee Jay's Sash & Glass, Inc.

Santa Rosa, CA
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Skylights
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Mirrors

Website: http://www.deejaysglass.com/
Address: 2985 Wiljan Ct, Santa Rosa, CA 95407
Phone: (707) 546-7344

Pella Windows & Doors of Northern California

Rohnert Park, CA
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Double-Hung

Website: http://www.pellanorcal.com/
Address: 5430 Commerce Blvd #1b, Rohnert Park, CA 94928
Phone: (707) 394-5886

Novato Glass Inc

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Mirrors
  • Service icon Custom Glass
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Skylights
  • Service icon Glass Showers

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

Miller Glass Inc

Orland, CA
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Mirrors
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Glass Repair

Website: https://millerglass.com/
Address: 116 Walker St, Orland, CA 95963
Phone: (530) 865-9839

Nor Cal Glass Products

Rohnert Park, CA
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Mirrors

Website: http://www.norcalglassproducts.com/
Address: 566 Martin Ave A, Rohnert Park, CA 94928
Phone: (707) 206-9660

Home Services at The Home Depot

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

Services Offered

  • Service icon Glass Doors
  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Screen Repair
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Vinyl Frames

Website: https://www.homedepot.com/l/Rohnert-Pk/CA/Rohnert-Park/94928/641/services
Address: 4825 Redwood Dr, Rohnert Park, CA 94928
Phone: (707) 296-1203

The Window Design Studio

Petaluma, 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 Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options

Website: https://thewindowdesignstudio.com/
Address: 280 Monte Vista Ln, Petaluma, CA 94952
Phone: (415) 877-5492

Simonton Windows & Doors - Cornerstone Building Brands

Vacaville, CA
3.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://www.simonton.com/
Address: 2019 E Monte Vista Ave, Vacaville, CA 95688
Phone: (800) 746-6686

Hawkins Exteriors Window Replacement Yuba City - Patio & French Door Installation

Yuba City, CA
3.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://hawkinsexteriors.com/
Address: 1257 Hassett Ave, Yuba City, CA 95991
Phone: (530) 671-5044

Vallejo Glass Inc.

Vallejo, CA
3.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Metal Frames
  • Service icon Custom Glass
  • Service icon Mirrors
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Glass Repair

Website: https://vallejoglass.com/
Address: 205 Couch St, Vallejo, CA 94590
Phone: (707) 644-4447
Clearlake Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Clearlake, 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 Clearlake Saves You Money

Energy-efficient windows can benefit you in several ways. Here are a few reasons you may want to take the plunge and make the switch:

  • Reduce your carbon footprint: By using less energy once upgrading to energy-efficient windows, you’ll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, particularly if your home is on the older side.
  • Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of household energy use. Upgrading to energy-efficient windows can help decrease that amount, which helps you save more on your bills.

Estimated Cost of Window Replacement in Clearlake

Each window installer offers varying services and has varying prices based on a few factors.

How Much Do New Windows Cost?

Generally, homeowners in Clearlake can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost at about $600. This is because of the fact that the cost of window installations depend on a variety of factors specific to your home, including the size, material and number of windows you need to replace, as well as where your property is located.

Keep in mind that energy-efficient windows may come at a higher price tag, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you replace single-pane windows and between $27 and $197 per year when installing double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.

The cost of your window installation will also vary depending on the kind of window material you choose for the frames. Wood windows are usually the most expensive, although it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.

Full-frame installations are usually recommended when you want a new style or your window has significant rot. With this service, your professionals will replace the total window, including the frame, trim and sill. Pocket installations (or retrofits) entail replacing a window within the existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.

If you’re hiring a reputable window installation company, your company can recommend the best type for your project. In Clearlake, the decision will mostly be based on how much damage there is currently and how old your existing frames are.

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Energy-Efficient Features

DaBella

★★★★★
4.0
  • Great warranty
  • Friendly sales representatives
  • Offers good financing options

How We Choose the Best Window Installers in Clearlake

In our search to find the most reliable, eco-friendly window installers in Clearlake, EcoWatch chose the above companies as the top window installation companies in the city. We’ve assessed the best window replacement companies in Clearlake primarily based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.

Work Quality

We’re certain that you’re looking for professionals who do a great job installing windows. We’ve vetted each company included on this list to make sure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If most customers don’t have good things to say about their service from a certain window installation company, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to most services, cheap window installation companies may not provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed, windows are a sizable investment, so you’ll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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

Clearlake, CA Window Replacement FAQs

How much should a window install cost?

The national average cost to replace a single window is about $600 but can range from $200 to $1,200, based on a few different factors. The price is generally influenced by the type and material of the window, the size of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

What kind of window is the most energy-efficient?

Generally, double-pane windows are more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.

What do window installation companies do?

Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some companies install products manufactured by other companies, whereas others install their own windows. The installer will also clean up after the installation.

When is the best time of year to replace windows?

Replacement windows can be installed during any season, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into your house, so the temperature outside isn’t necessarily a big factor. Most importantly, the weather should be dry.

How often should you replace your windows?

Windows usually have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it’s a good time to have them looked at by an expert to see if they need any repairs or replacements.