29 Best Window Replacement Companies in St Helena, CA (Jan 2023)
Window Companies Near Me

Thinking about replacing your windows? We've got all the information you need in this guide to the top window installation companies.

We analyzed all the top window installers in St Helena and selected the top 29 based on:

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

By EcoWatch Local Advisors

Updated January 12, 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.

A review of the top window installation companies in St Helena may not seem like the most compelling article on the EcoWatch site, but trust us, windows impact your life more than you might realize. According to the Department of Energy, heat gained or lost through traditional, outdated windows could account for 25-30% of heating and cooling use.

That's not great for your wallet or the environment, but one of the top window installation companies can help you with that.

Unlike other sites, EcoWatch ranks window companies on energy efficiency while also balancing cost, customer satisfaction and service area.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Member of US Green Building Council
  • Manufactures products in-house
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

Best Window Replacement Companies in St Helena

The EcoWatch team evaluated many window installation companies in St Helena to find the top ones for our readers. The providers we've reviewed in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price and more.

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

Milgard Windows & Doors offers the best local installation in St Helena. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has been in the window installation business for about 60 years. Its reputation is backed by hundreds of positive reviews on customer review websites.

Milgard may be the company for you if you want 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 Windows

Milgard Windows & Doors carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 St Helena?

Pricing information is not available on Milgard's website, as the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. If you'd like more accurate information, you can inquire about a quote on the company's website.

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

Renewal by Andersen offers the best availability in St Helena. Andersen has around 27 years of experience in the industry, and it currently serves nearly every state except Mississippi and West Virginia. The provider has many positive reviews from customers online.

You may want to consider going with Andersen if you're interested in a installer 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'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 St Helena?

Though pricing is not available on Andersen's website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate information is to request a free quote from the company.

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 Great industry reputation
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 become one of the best companies in St Helena. The provider has plenty of positive reviews from customers on online 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

Window World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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 St Helena?

Prices are not available on Window World's website since the cost of window installment differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can get a quote from the company.

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 has the best warranty in St Helena. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been operating since 2002 and currently services 27 states nationwide.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

There are a wide variety of window types available from Universal Windows Direct, some of which are Energy Star products. 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 St Helena?

Although pricing information is not 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. You can ask for a free quote on its website for more information about pricing.

We have tried to stay unbiased and transparent by mentioning pros and cons for each installer. Additionally, any partnerships do not affect our rankings.

More Window Replacement Companies in St Helena

The Glass Guru

Fairfield, CA
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Dependable Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.theglassguru.com/fairfield-vacaville-ca/
Address: 1601 Enterprise Dr Unit 14, Fairfield, CA 94533
Phone: (707) 348-9539

Window Replacement Vallejo

Vallejo, CA
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 116 Springstowne Center, Vallejo, CA 94591
Phone: (707) 515-0257

Window Replacement Vacaville

Vacaville, CA
4.0
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Educational Website
  • Pros icon Reliable Appointment Windows
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://bestexteriors.com/
Address: 2061 Peabody Rd, Vacaville, CA 95687
Phone: (707) 317-1074

Northwest Exteriors

Santa Rosa, CA
3.8
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • 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

Save Energy Company

Petaluma, CA
3.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Arrives on Time
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

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

Affordable Windows Vacaville

Vacaville, CA
3.8
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Reliable Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://affordablehousewindowsnearme.com/
Address: 2061 Peabody Rd, Vacaville, CA 95687
Phone: (916) 382-0551

California Glass of Vallejo, Inc.

Vallejo, CA
3.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Locally Recognized for Quality

Services Offered

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

Website: http://www.calglassofvallejo.com/
Address: 1014 Broadway, Vallejo, CA 94590
Phone: (707) 643-5609

Vallejo Glass Inc.

Vallejo, CA
3.4
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Aluminum Window Frames
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options

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

R & S Glazing Specialties

American Canyon, CA
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.rsglazing.com/
Address: 5353 Napa Vallejo Hwy, American Canyon, CA 94503
Phone: (707) 257-7111

Novato Glass Inc

Novato, CA
3.3
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

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

ClimatePro

Rohnert Park, CA
3.3
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows

Website: https://www.climatepro.com/
Address: 6145 State Farm Dr, Rohnert Park, CA 94928
Phone: (707) 755-7337

The Window Cleaning Specialists, LLC

Santa Rosa, CA
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://www.windowcleaningspec.com/
Address: 3558 Round Barn Blvd ste 200, Santa Rosa, CA 95403
Phone: (707) 690-0298

Dotto Glass Inc

San Rafael, CA
3.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://dottoglass.com/
Address: 74 Mitchell Blvd, San Rafael, CA 94903
Phone: (415) 479-1274

Jack Smith Glass & Sash Inc.

Santa Rosa, CA
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

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

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

All Window & Door

Petaluma, CA
3.1
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

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

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

Roofing | Windows | Landscaping | Concrete Grinding | Eagle Construction

Vallejo, CA
3.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

Website: https://eagleconstructionroofing.com/
Address: 623 Tuolumne St, Vallejo, CA 94590
Phone: (707) 558-8246

Tom's Glass Co.

Vacaville, CA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: https://tomsglasscompany.com/
Address: 713 Merchant St Ste E, Vacaville, CA 95688
Phone: (707) 448-7151

Home Services at The Home Depot

Vacaville, CA
3.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Windows
  • Service icon Fast Delivery
  • Service icon Glass Showers

Website: https://www.homedepot.com/l/Vacaville/CA/Vacaville/95687/1043/services
Address: 510 Orange Dr, Vacaville, CA 95687
Phone: (707) 296-1250

See Through Glass and Door

Petaluma, CA
3.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.seethroughgd.com/
Address: 4216 Petaluma Blvd N, Petaluma, CA 94952
Phone: (707) 775-8626

Glass Shop of the North Bay

Petaluma, CA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Doors
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Tempered Glass
  • Service icon Residential Windows
  • Service icon Business Windows

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

American Window Systems, Inc.

Napa, CA
2.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon Free Quotes

Services Offered

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

Santa Rosa Windows & Glass

Santa Rosa, CA
2.9
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

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

Decor Shower Door & Glass Co

Napa, CA
2.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://www.decornapa.com/
Address: 1819 Tanen St # A, Napa, CA 94559
Phone: (707) 253-0622

Denton's Glass Co.

Santa Rosa, CA
2.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

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

Golden West Glass Company, Inc

Sonoma, CA
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://www.goldenwestglass.com/
Address: 18153 Sonoma Hwy, Sonoma, CA 95476
Phone: (707) 939-9604

Capitol Glass Company Inc

Benicia, CA
2.8
★★★★★
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.capitolglassbenicia.com/
Address: 5000 E 2nd St ste h, Benicia, CA 94510
Phone: (707) 745-4570

B & L Glass

Santa Rosa, CA
2.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows

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

Dee Jay's Sash & Glass, Inc.

Santa Rosa, CA
2.8
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing

Services Offered

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

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

LC Window Treatments

CA 95476, CA
2.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.lcwindowtreatments.com/
Address: Sonoma, CA 95476
Phone: (628) 400-1665

How Installing Energy-Efficient Windows in St Helena Saves You Money

When you upgrade to energy-efficient windows, you may see several perks, such as:

  • Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Save money on energy bills: Because energy-efficient windows reduce the amount of energy needed to heat or cool your home, they can help you save around $655 annually on your energy bills in St Helena.

Estimated Cost of Window Replacement in St Helena

Windows come in varying styles, purposes and shapes, so costs and services will vary tremendously depending on several factors. Below, we go over the average cost and services that you'll find from window replacement companies.

How Much Do New Windows Cost?

Even though the typical of replacing one window is about $600, it can range from $200 to $1,200. But costs vary considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door replacements, which will make your project cost more.

It's important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save St Helena homeowners $655+ a year when replacing single-pane windows.

The cost of your window installation will also vary based on the type of window material you choose for the frames. Wood windows are generally the most expensive, though it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

In regard to window installations, in general there are two kinds that your installer will have: 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 a new style for your windows or when it has significant deterioration. Full-frame installations involve more time and labor and will increase overall costs. A pocket installation entails replacing a window without replacing the frame. This means instead of tearing out the whole unit and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

If you're still trying to decide which kind of installation you should get, you can talk to your provider and get their advice. The decision mostly depends on how old the frames are and if there's any damage present.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Member of US Green Building Council
  • Manufactures products in-house
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

How We Choose the Best Window Installers in St Helena

In our hunt to find the most reliable, eco-friendly window installers in St Helena, the EcoWatch team chose the above companies as the best window installation companies in the city. We've decided to assess the best window installers in St Helena mostly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

Because this is a guide for St Helena, we gave more points to companies that serve the city. There are certainly reputable providers that didn't make the list because they wouldn't be able to serve homeowners in St Helena.

Work Quality

When installing new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the brand you opt for. 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 patterns in recent customer feedback to find the companies with the highest rates of customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, quality of installation, quality of parts, warranty, cost and more.

Cost

This one is a give-and-take: similar to other services, cheap window companies are not going to provide the most quality service. On the other hand, we want to ensure we're highlighting companies that provide a range of price and financing options so they're accessible to most homeowners.

Warranty

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

Years of Experience

Due to St Helena's climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of St Helena window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

St Helena, CA Window Replacement FAQs

How much does a window install cost?

The typical cost to install a window ranges between $450 and $650. There are a variety of factors that affect the cost, such as the number of windows, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are, your property's location and local labor costs.

What are the kinds of windows?

There are various kinds of windows you can get for your house, such as bay windows, transom windows, double-hung and single-hung windows, picture windows, awning windows, slider windows and casement windows.

Can I install my own windows?

While it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you can avoid spending the time and effort of doing it yourself.

When is the best time of year to replace windows?

Though you can install windows any time of year, warmer weather is generally better for installing replacement windows. Additionally, the weather should be dry, since rain can make the installation more difficult.

Should I replace all my windows at once?

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

Follow us