25 Best Window Replacement Companies in Lakeport, CA (2023 Reviews)
Window Companies Near Me

Are you thinking of replacing your windows? Our list of the best window installation companies can help you narrow down which one to pick.

We analyzed all the top window installers in Lakeport and selected the top 25 based on:

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

By EcoWatch Local Advisors

Updated May 04, 2023

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.

Whether you're doing home renovations or have windows that need repairs, windows play a crucial role in conserving energy in your home. The Department of Energy estimates that heat or cool air lost through traditional or outdated windows could make up around 30% of residential energy climate use. In Lakeport, where the electricity bills are an average of $35 per month, that's almost $$126 per year wasted.

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

As windows are so important for your home, picking the right company for you is a big decision to make. That's why the EcoWatch team has put together this list of the top window replacement companies, so you can more easily make an informed decision.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Limited additional services

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Window Replacement Companies in Lakeport

The EcoWatch Reviews team assessed dozens of installers in Lakeport to find the best window installation companies for our readers. The providers we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

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 Limited additional services

Milgard Windows & Doors has the best local installation in Lakeport. Milgard has over 60 years of experience in the industry, and it currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. The provider has hundreds of glowing reviews from customers online.

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 Windows

Milgard Windows & Doors carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Lakeport?

Milgard doesn't have any cost information listed on its website, but it offers different kinds of windows at varying price points. Receiving a free quote on its website is the best way to get more accurate information.

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 Member of US Green Building Council
  • Pros icon Award-winning company
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in Lakeport. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for about 27 years.

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

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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 Lakeport?

Andersen doesn't have any cost information displayed 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 inquire about a free quote on its website for more information about pricing.

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

Window World

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

Window World offers windows expertise in Lakeport. It's 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 become one of the most reputable companies in the business. The provider has hundreds of glowing reviews from customers online.

It 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

Window World's commitment to sustainability shows 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 Lakeport?

Prices aren't available on Window World's website, but 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 pricing information.

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 offers the best warranty in Lakeport. This window installation company has been in business since 2002 and currently services 27 states nationwide. Many positive reviews from customers online back the company's reputation.

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

Universal Windows Direct offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 Lakeport?

Although pricing information is not readily available on Universal's website, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Requesting a free quote on its website is the best way to know for sure.

We aim to be unbiased and transparent by mentioning pros and cons for every company. Additionally, any partnerships do not affect our reviews.

More Window Replacement Companies in Lakeport

Save Energy Windows and Doors

Petaluma, CA
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.saveenergyco.com/
Address: 315 Petaluma Blvd S, Petaluma, CA 94952
Phone: (415) 492-1814

The Glass Man

863 Gravenstein Hwy N, CA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://glassmansoco.com/
Address: Behind the convenience store, 863 Gravenstein Hwy N, Sebastopol, CA 95472
Phone: (707) 292-9001

B & L Glass

Santa Rosa, CA
3.9
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

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

Round Tree Glass

Willits, CA
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

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

Moore Home Services

Santa Rosa, CA
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: https://www.moorehomeservices.com/
Address: 3321 Industrial Dr, Santa Rosa, CA 95403
Phone: (707) 244-1119

American Window Systems, Inc.

Napa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: https://www.amwinsys.com/
Address: 1729 Action Ave suite b, Napa, CA 94559
Phone: (707) 258-0880

Home Services at The Home Depot

Ukiah, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.homedepot.com/l/Ukiah/CA/Ukiah/95482/8408/services
Address: 350 N Orchard Ave, Ukiah, CA 95482
Phone: (707) 296-1396

Santa Rosa Windows & Glass

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery

Website: http://www.santarosaglassreplacement.com/
Address: 1042 Hopper Ave #3E, Santa Rosa, CA 95403
Phone: (707) 282-5700

Northbay Auto Wraps

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: http://northbayautowraps.com/
Address: 3715 Santa Rosa Ave STE A9, Santa Rosa, CA 95407
Phone: (707) 559-8255

All Screens

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: http://allscreensllc.com/
Address: 1955 Hoen Ave, Santa Rosa, CA 95405
Phone: (707) 525-1474

ClimatePro

Cotati, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: https://www.climatepro.com/
Address: 374 Blodgett St #1, Cotati, CA 94931
Phone: (707) 755-7337

Northwest Exteriors

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

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

Blyss Construction Santa Rosa

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://blyssconstruction.com/
Address: 703 2nd St, Santa Rosa, CA 95404
Phone: (707) 755-7695

Home Services at The Home Depot

Rohnert Park, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Commercial Windows

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

Home Services at The Home Depot

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Santa-Rosa/CA/Santa-Rosa/95403/1379/services
Address: 100 Bicentennial Way, Santa Rosa, CA 95403
Phone: (707) 296-1261

Home Services at The Home Depot

Windsor, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Commercial Windows

Website: https://www.homedepot.com/l/Windsor-CA/CA/Windsor/95492/6667/services
Address: 6280 Hembree Ln, Windsor, CA 95492
Phone: (707) 296-1388

GreenRun Construction - General Contractors

Santa Rosa, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

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

Glass Shop of the North Bay

Petaluma, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Commercial Windows

Website: http://glassshop.me/
Address: 1329 Scott St # G, Petaluma, CA 94954
Phone: (707) 762-1900

Santa Rosa Window Tint

3200 Dutton Ave, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: http://www.santarosawindowtint.com/
Address: Suite #421, 3200 Dutton Ave, Santa Rosa, CA 95407
Phone: (707) 878-5704

Jack Smith Glass & Sash Inc.

Santa Rosa, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

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

World Of Carpet One Floor & Home

Santa Rosa, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Fast Delivery

Website: http://www.worldofcarpetsantarosa.com/
Address: 3023 Santa Rosa Ave, Santa Rosa, CA 95407
Phone: (707) 703-4549

A Shade Darker Window Tinting

Santa Rosa, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Award-Winning
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs

Website: https://ashadedarker.com/
Address: 3093 Wiljan Ct Suite A, Santa Rosa, CA 95407
Phone: (707) 546-2827

All Window & Door

Petaluma, CA
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: http://www.allw-d.com/
Address: 432 Garfield Dr, Petaluma, CA 94954
Phone: (415) 948-4522

Denton's Glass Co.

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

Services Offered

  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

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

Dee Jay's Sash & Glass, Inc.

Santa Rosa, CA
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.deejaysglass.com/
Address: 2985 Wiljan Ct, Santa Rosa, CA 95407
Phone: (707) 595-7836

How Installing Energy-Efficient Windows in Lakeport Saves You Money

By upgrading to energy-efficient windows, you and your family can take advantage of several benefits, including:

  • Save money on energy bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll use less energy to heat or cool your home.
  • Decrease your carbon footprint: In Lakeport, you can reduce your indirect greenhouse gas emissions by about 117 pounds per year when you switch to energy-efficient windows.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if you have an older home.

Estimated Cost of Window Replacement in Lakeport

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

How Much Do New Windows Cost?

Generally, Lakeport homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at about $600. But costs vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door replacements, which will add extra costs to your project.

It's also worth keeping in mind that energy-efficient windows will cost more initially, but Energy Star predicts that upgrading the windows on your Lakeport home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.

We advise requesting free quotes from several window installers to find the right windows and the company that works best for you.

What Services do Window Installers Offer?

In general, there are two kinds of window replacement services you can get: full-frame and pocket installations.

Full-frame installations require replacing the full window — the sill, frame, trim and all. These are typically done when you want a new style for your windows or when it has significant damage. Full-frame installations require more time and labor and will increase overall costs. A pocket installation means replacing a window without taking out the entire frame, which is generally cheaper than a full-frame installation.

If you're not sure which type of window installation service you need, your installer should be able to help you out. Generally, the decision is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Limited additional services

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Low prices relative to competitors
  • Quality of service will depend on your area

How We Choose the Best Window Installers in Lakeport

EcoWatch reviews differ from other reviews, as we examine these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings using the following methodology:

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 the best window installation company near you.

Work Quality

We're certain that you're looking for a company to do a great job installing windows. We've vetted each company in our guide to make sure its technicians are well-qualified and that the company has gotten lots 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 things to say about their service from 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 highest quality service. On the other hand, we want to ensure we're highlighting companies that provide a wide range 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 that provide 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 a proven track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Lakeport, CA Window Replacement FAQs

How much does window installation cost?

The national average cost to replace a single window is around $600 but can range from $200 to $1,200, based on several factors. The price is often dependent on the location of your property, the type and material of the window and the size of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

What type of window is the best for energy efficiency?

Generally, double-pane windows are more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. To be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — this means they're certified energy-efficient by the U.S. Department of Energy.

When should I use a window installation company?

Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring the pros. The window installation process is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to save some money by doing it yourself, hiring a professional is a faster, more efficient and much safer alternative.

How long does window installation typically take?

Each window takes about 30 minutes to install depending on the type of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.

What time of year is a good time to replace my 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 ensure that too much hot or cold air doesn't get into your house, so the temperature outside doesn't necessarily matter that much. What's more important than the temperature is that the weather should be dry.

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