20 Best Window Companies in Spanish Lake, MO (2023 Reviews)

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

We analyzed all the top-rated window companies in Spanish Lake 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 September 15, 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.

The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in Spanish Lake. According to the Department of Energy, heat gained or lost through outdated, drafty windows could make up 25-30% of household energy climate control use.

Installing new, efficient windows on your property can help you save money each month on your energy bills — and you can help the environment as well.

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

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 Spanish Lake

The EcoWatch team evaluated dozens of installers in Spanish Lake to find the best window replacement companies for our readers. The companies we've reviewed in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window replacement sector. Its reputation is backed by all the positive reviews on customer review websites.

Window World may be the company for you if you want one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World 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 offerings 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 Spanish Lake?

Prices are not available on Window World’s website since the cost of window replacement 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. The best way to know for sure is to get a free 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement sector. Its reputation is backed by all the positive reviews on customer review websites.

Andersen may be the company for you if you want one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen 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 offerings 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 Spanish Lake?

Prices are not available on Andersen’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, 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 know for sure is to get a free 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 provides the best warranty in Spanish Lake. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the industry, and it currently provides services to 27 states nationwide. Its reputation is backed by hundreds of positive reviews from customers online.

Universal may be the company for you if you want one that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Spanish Lake?

Universal doesn’t have any prices displayed 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. If you’d like more accurate information, you can receive a quote on the company’s website.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has around 16 years of experience in the window replacement sector. Its reputation is backed by all the positive reviews on customer review websites.

Window Nation may be the company for you if you want one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation. Not all of Window Nation’s offerings are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.

How much does Window Nation cost in Spanish Lake?

Prices are not available on Window Nation’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to know for sure is to get a free quote from the company.

We aim to remain unbiased and transparent by describing pros and cons for each provider. Additionally, any partnerships do not influence our reviews.

More Window Companies in Spanish Lake

Renewal by Andersen

Maryland Heights, MO
4.4
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/733-st-louis-mo/about-us
Address: 2446 Schuetz Rd, Maryland Heights, MO 63043
Phone: (314) 983-9977

Window World of St. Louis

Earth City, MO
4.3
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Commercial Windows

Website: https://www.windowworldstlouis.com/
Address: 3600 Rider Trail S, Earth City, MO 63045
Phone: (314) 993-1800

Champion Replacement Windows of St. Louis

Fenton, MO
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass

Website: https://www.championwindow.com/St-Louis/
Address: 29 Cassens Ct, Fenton, MO 63026
Phone: (636) 764-0470

Window Nation

Overland, MO
4.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Stained Glass
  • Service icon Custom Window Designs

Website: https://www.windownation.com/stlouis-showroom/
Address: 1913 Belt Way Dr, Overland, MO 63114
Phone: (314) 279-8249

Granite City Glass

Granite City, IL
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

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

Website: http://www.granitecityglass.com/
Address: 1837 Madison Ave, Granite City, IL 62040
Phone: (618) 877-5400

Fischer Lumber Co.

East Alton, IL
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Aluminum Window Frames
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations

Website: http://www.fischerlumber.com/
Address: 210 N Shamrock St, East Alton, IL 62024
Phone: (618) 259-7434

Penny Window

St. Louis, MO
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Window Repair
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://pennywindowstl.com/
Address: 9910 Halls Ferry Road, St. Louis, MO 63136
Phone: (314) 867-4355

Morse Home Improvement

Alton, IL
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://mhi1962.com/
Address: 2320 Morning Star Dr, Alton, IL 62002
Phone: (618) 465-0505

Just windows and Doors

Florissant, MO
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: http://justwindowsanddoors.org/
Address: 4128 Seven Hills Dr, Florissant, MO 63033
Phone: (314) 458-0605

Home Services at The Home Depot

St. Louis, MO
3.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.homedepot.com/l/Ferguson/MO/Saint-Louis/63136/3013/services
Address: 10930 New Halls Ferry Road, St. Louis, MO 63136
Phone: (314) 279-3874

Banner Construction

St. Louis, MO
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

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

Website: https://bannerconstruction.com/
Address: 1177 N Price Rd, St. Louis, MO 63132
Phone: (314) 207-2656

XL Building Products

St. Louis, MO
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: http://www.xlbpco.com/
Address: 10707 Midwest Industrial Blvd, St. Louis, MO 63132
Phone: (314) 429-2919

Missouri Glass Company

St. Louis, MO
4.1
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Commercial Windows
  • Service icon Tempered Glass
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: http://www.missouriglass.com/
Address: 1717 Ohio Ave, St. Louis, MO 63104
Phone: (314) 664-5100

Hyperion Glass Company

St. Louis, MO
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: http://hyperionglassco.com/
Address: 2357 Grissom Dr, St. Louis, MO 63146
Phone: (314) 920-9417

STL Windows and Doors

St. Louis, MO
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment

Services Offered

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

Website: https://stl-windows-and-doors-st-louis.business.site/
Address: 12150 Lackland Rd, St. Louis, MO 63146
Phone: (314) 277-5952

Cardinal Contractors

St. Louis, MO
4.2
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.cardinalcontractors.com/
Address: 453 N Lindbergh Blvd, St. Louis, MO 63141
Phone: (314) 266-4633

Sears Window Replacement

Bridgeton, MO
3.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.searshomeservices.com/locations/hi/window-replacement/mo/bridgeton
Address: 12930 Hollenberg Dr, Bridgeton, MO 63044
Phone: (314) 325-8649

Integrity Restoration - Home Remodeling

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

Services Offered

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

Website: https://integrityrestorationstl.com/
Address: 2522 Salem Rd, Brentwood, MO 63144
Phone: (314) 640-1848

LEI Home Enhancements

St. Louis, MO
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://leihomeenhancements.com/stlouis/
Address: 111 W Port Plaza Dr 6th floor, St. Louis, MO 63146
Phone: (314) 334-1597

Siding Express

St Charles, MO
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

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

Website: https://www.sidingexpress.com/
Address: 123 N Main St #200, St Charles, MO 63301
Phone: (636) 757-3925
Spanish Lake Window Cost Calculator

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

By upgrading to energy-efficient windows, you and your family can enjoy several benefits, such as:

  • Save money on energy bills: Since energy-efficient windows reduce the amount of energy used to heat or cool your home, they can help you save about $376 annually on your energy bills in Spanish Lake.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • More efficient energy use in your home: Because the winters can get very cold in Spanish Lake, homeowners often rely on their heater during that time. Energy-efficient windows decrease the amount of heat that is lost through your windows, which makes it easier to keep your home warm.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Spanish Lake

Windows come in various styles, shapes and purposes, so costs and services will vary considerably based on your project. Below, we go over the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Although the average to replace one window is around $600, it can range from $200 to $1,200. This is due to the fact that the cost of window installations are based on several factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.

It's also worth keeping in mind that energy-efficient windows will usually cost more upfront, but Energy Star predicts that switching out the windows on your Spanish Lake home translates to an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per 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.

Costs will also vary depending on the material of your frame. Aluminum frames have the lowest price. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

The first step of a window replacement is to figure out whether you want a full-frame or pocket installation.

A full-frame installation is a replacement of the full window. This service involves removing the old window, the windowsill, and the exterior and interior trim. It can also involve additional materials, including insulation and drip edges, which raise the overall cost of the project. It's also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations are simpler and won't cost as much because they entail simply replacing the window within its existing frame. But if the frame has any damage, you should opt for a full-frame installation instead.

Your window installer should be able to help you decide which type of installation you should get.

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 Spanish Lake

In our search to make your home improvements easier and more eco-friendly in Spanish Lake, EcoWatch examined dozens of companies before landing on these. We've evaluated the top window installers in Spanish Lake mostly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for Spanish Lake, we only included companies that cover the city. There are other reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Spanish Lake.

Work Quality

When it comes to new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the type of window you choose. 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 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 parts, quality of installation, cost, warranty, professionalism and more.

Cost

Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

As discussed previously, windows are a significant investment, so you'll want to make sure that investment is well protected. Window installation companies that have 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 good track record in the industry. Window installers that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Spanish Lake, MO Window Replacement FAQs

How much does window installation cost?

The national average cost to install a single window is around $600 but can range from $200 to $1,200, depending on several factors. The price is usually influenced by the type and material of the window, the location of your property and the size of the window. Also, bear 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 most energy-efficient?

A window's energy efficiency is affected by a variety of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.

Do I really have to use a window installation company?

You should use a window installation professional whenever you need to upgrade your windows. Installing windows is a complex process that can be difficult to do on your own, so it's best left to the professionals.

Should I replace my windows all at once?

If you want to get more efficient windows and save money on energy costs, replacing all your windows at once is the only way to gain that benefit. On the other hand, if you have only a few windows that are broken or leaky, you can replace just those.

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