30 Best Window Replacement Companies in Castle Rock, CO (Feb 2023)
Window Companies Near Me

Looking to improve your property's energy efficiency? The best window replacement companies can help.

We analyzed all the top window installers in Castle Rock and selected the top 30 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.

The EcoWatch team is all about helping Castle Rock homeowners make their homes more eco-friendly. Traditional or damaged windows could lead to having higher electricity bills during the winter or summer months.

Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.

So if you're building a new home, renovating or updating your windows in Castle Rock, this guide is the best place to get started.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Manufactures products in-house
  • Great industry reputation
  • Award-winning company
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Lifetime warranty
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Wide variety of products and services
  • Lifetime warranty
  • Makes charitable contributions
  • Limited service area

Best Window Replacement Companies in Castle Rock

The EcoWatch team examined dozens of providers that serve the Castle Rock area to find the best window installation companies by our standards. The providers we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

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 Manufactures products in-house
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
Cons:
  • 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 over 27 years of experience in the industry, and it currently provides services to nearly every state except Mississippi and West Virginia.

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 want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Castle Rock?

Prices are not available on Andersen's website since the cost of window replacement depends 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 get more accurate pricing information is to ask for 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 Lifetime warranty
  • Pros icon EnergyStar Partner
  • Pros icon Great industry reputation
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in Castle Rock. Window World has been in the window installation industry for about 27 years. The company has hundreds of positive reviews from customers online.

You may want to consider going with Window World if you're interested in a installer 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 make sure you mention that you're interested in Energy Star windows when inquiring.

How much does Window World cost in Castle Rock?

While prices are 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 the cost, you can ask for 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 Wide variety of products and services
  • Pros icon Lifetime warranty
  • Pros icon Makes charitable contributions
Cons:
  • Pros icon Limited service area

Universal Windows Direct has the best warranty in Castle Rock. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the windows business, and it has established itself as one of the most reputable companies in the business. Its reputation is backed by hundreds of positive reviews on customer review websites.

If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the perfect company for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct's commitment to sustainability can be seen in its 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 Castle Rock?

Universal doesn't have any cost information 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. For more detailed information on pricing, you can get a quote from the company.

We've recommended providers with good reputations, but note that some national companies have independently owned locations in Castle Rock, so the quality of service may differ depending on your local crew. We have tried to be unbiased and transparent by describing pros and cons for every company we reviewed.

More Window Replacement Companies in Castle Rock

Storm Guard of South Metro Denver

Parker, CO
5
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Reliable Appointment Windows
  • Pros icon Free Quotes
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.stormguardrc.com/co/denver-south-metro/
Address: 10964 S Pikes Peak Dr, Parker, CO 80138
Phone: (720) 789-7608

The Glass Guru

Arvada, CO
5
★★★★★
  • Pros icon Award-Winning
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time
  • Pros icon Price Transparency

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 Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.theglassguru.com/denver-west-co/
Address: 6618 Wadsworth Blvd, Arvada, CO 80003
Phone: (720) 782-5934

Window World of Denver

Denver, CO
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.windowworldcolorado.com/
Address: 480 E 76th Ave Bldg 5E, Denver, CO 80229
Phone: (303) 574-9594

Commercial Storefront Glass Denver

1555 Larimer St, CO
4.3
★★★★★
  • Pros icon Reliable Service
  • Pros icon Reliable Appointment Windows
  • Pros icon Free Quotes
  • Pros icon Educational Website

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://commercialstorefrontglassdenver.com/
Address: space CR711, 1555 Larimer St, Denver, CO 80202
Phone: (720) 543-7870

True View Windows & Glass

Westminster, CO
4.2
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Dependable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.trueviewglass.com/
Address: 3200 W 71st Ave Ste 20, Westminster, CO 80030
Phone: (720) 431-8783

CMC Proudly Offering Marvin Windows and Doors

Centennial, CO
4.1
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • 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 Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options

Website: https://www.cmcwindows.com/locations/centennial/
Address: 6950 S Tucson Way Ste O, Centennial, CO 80112
Phone: (720) 573-2230

Binswanger Glass

Castle Rock, CO
4.1
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Timely Service
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.binswangerglass.com/branch/castle-rock-co-1133-caprice-dr/
Address: 1133 Caprice Dr, Castle Rock, CO 80109
Phone: (303) 688-3945

Five Seasons Windows and Doors

Denver, CO
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time

Services Offered

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

Website: https://fiveseasonswindows.com/
Address: 1040 S Gaylord St Ste. 60, Denver, CO 80209
Phone: (720) 740-1391

The Window Store

Colorado Springs, CO
4.0
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service

Services Offered

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

Website: http://www.thewindowstorecolorado.com/
Address: 1810 Dominion Way, Colorado Springs, CO 80918
Phone: (719) 388-9900

Colorado Rockies Windows and Doors

Golden, CO
3.9
★★★★★
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

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

Website: http://www.coloradorockieswindowsanddoors.com/
Address: 941 Sleepy Hollow Rd, Golden, CO 80401
Phone: (720) 626-0900

GS Exterior Experts

Littleton, CO
3.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://gsexteriorexperts.com/
Address: 8580 S Nelson Ct, Littleton, CO 80127
Phone: (720) 683-6288

United Windows Pro - Windows and glass repair

Aurora, CO
3.8
★★★★★
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Arrives on Time
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.unitedwindowspro.com/
Address: 4515 S Nepal Ct, Aurora, CO 80015
Phone: (720) 400-2929

Ken Caryl Glass, Inc.

Mead Way, CO
3.8
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Appointment Windows
  • Pros icon No-fee Quotes

Services Offered

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

Website: https://kcglassinc.com/
Address: 12450 N, Mead Way, Littleton, CO 80125
Phone: (303) 791-3122

303 WINDOWS

Denver, CO
3.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.303windows.com/
Address: 2375 S Downing St, Denver, CO 80210
Phone: 303 WINDOWS

Reliable Glazing

Denver, CO
3.8
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://www.reliableglazing.com/
Address: 3085 S Rosemary St, Denver, CO 80231
Phone: (720) 981-4048

Mountain View Window & Door

Denver, CO
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Locally Recognized for Quality

Services Offered

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

Website: http://www.mtnview.us/
Address: 815 S Jason St, Denver, CO 80223
Phone: (303) 649-2217

Colorado Classic Exteriors: Windows, Siding, Doors, Pergolas

Arvada, CO
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Dependable 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 Sliding Glass
  • Service icon Energy-Efficient Options

Website: http://coloradoclassicexteriors.com/
Address: 7985 Vance Dr #202, Arvada, CO 80003
Phone: (720) 457-5536

Lifetime Windows & Siding

Denver, CO
3.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Arrives on Time
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.lifetimewindowscolorado.com/
Address: 2330 Broadway St Ste 110, Denver, CO 80205
Phone: (303) 536-8809

Absolute Glass & Windows LLC

Aurora, CO
3.7
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: https://www.absoluteglassandwindows.com/
Address: 401 Laredo St C Unit C, Aurora, CO 80011
Phone: (303) 848-4094

Alpha Glass and Window, LLC

Englewood, CO
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Award-Winning

Services Offered

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

Website: https://alphaglassdenver.com/
Address: 1545 W Tufts Ave Ste H, Englewood, CO 80110
Phone: (720) 382-8524

Window Replacement Denver

Denver, CO
3.7
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • 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://windowreplacementdenver.com/
Address: 1480 Wolff St #116, Denver, CO 80204
Phone: (720) 701-2202

Beyers Window & Door Inc

Centennial, CO
3.6
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Locally Recognized for Quality
  • Pros icon Free Quotes
  • Pros icon Educational Website

Services Offered

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

Website: https://www.beyerswindows.com/
Address: 7310 S Alton Way H, Centennial, CO 80112
Phone: (303) 220-5990

Colorado Window Source

Denver, CO
3.6
★★★★★
  • Pros icon Timely Service
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

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

Website: https://www.coloradowindowsource.com/
Address: 1390 W Evans Ave Unit D, Denver, CO 80223
Phone: (720) 727-6031

Window World of Southern Colorado

Colorado Springs, CO
3.6
★★★★★
  • Pros icon Reliable Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldsocolorado.com/
Address: 4460 Forrest Hill Rd, Colorado Springs, CO 80907
Phone: (719) 888-3882

Parilla Window Cleaning and Mobile Screen Repair

Wheat Ridge, CO
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Appointment Windows

Services Offered

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

Website: http://www.parillawindowcleaning.com/
Address: 8252 W 44th Ave, Wheat Ridge, CO 80033
Phone: (720) 722-2578

Bordner Home Solutions, Inc

Colorado Springs, CO
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.bordnercolorado.com/
Address: 4815 List Dr Suite #115, Colorado Springs, CO 80919
Phone: (719) 249-1119

Hansen Glass

Plaza Dr #100, CO
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

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

Website: http://hansenglassinc.com/
Address: 18871 E, Plaza Dr #100, Parker, CO 80134
Phone: (303) 699-9292

Clearwater Exteriors

Denver, CO
3.4
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Educational Website

Services Offered

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

Website: http://www.clearwaterext.com/
Address: 4337 Tennyson St Ste 112, Denver, CO 80211
Phone: (720) 730-3097

Lakewood Glass and Windows

Lakewood, CO
3.4
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Award-Winning
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://www.lakewood.glass/
Address: 1198 S Pierce St unit a, Lakewood, CO 80232
Phone: (303) 995-8262

5280 Exteriors

Centennial, CO
3.4
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Dependable Service
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames

Website: https://www.5280exteriors.com/
Address: 7000 S Yosemite St Unit 285, Centennial, CO 80112
Phone: (720) 707-6963

How Installing Energy-Efficient Windows in Castle Rock Saves You Money

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

  • Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if you have an older home.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
  • Save on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of household energy use. Replacing your windows with energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.
  • Decrease your carbon footprint: By using less energy once you upgrade to Energy Star certified windows, you'll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Castle Rock

Each window replacement company offers varying services and has varying prices depending on several factors.

How Much Do New Windows Cost?

The national average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. These figures vary depending on the specifics of your installation, including number of windows, material, the location of your home, size, type and more.

It's important to keep in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by lowering your energy bills. Investing in certified energy-efficient windows can save Castle Rock homeowners $424+ a year when replacing single-pane windows.

We recommend requesting free quotes from multiple window installation companies to find the right windows and the company that works best for your budget.

What Services do Window Installers Offer?

There are generally two types of window replacement services: full-frame and pocket installations.

A full-frame installation replaces the full window, including the sill, frame, trim and the window panes. Because this kind of installation requires more time, it will be more expensive than a pocket installation. A pocket installation means replacing a window within the existing frame, which is usually less expensive than a full-frame installation.

Your window installer can help you choose which type of installation you need.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Manufactures products in-house
  • Great industry reputation
  • Award-winning company
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Lifetime warranty
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Wide variety of products and services
  • Lifetime warranty
  • Makes charitable contributions
  • Limited service area

How We Choose the Best Window Installers in Castle Rock

EcoWatch reviews are different from other reviews because we assess these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and assigned rankings using the following methodology:

Service Area

This one is self-explanatory, but we've chosen to highlight window installers that serve Castle Rock so you can find the best window installation company near you.

Work Quality

When choosing new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the brand you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of installation, professionalism, warranty, quality of parts, cost and more.

Cost

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

Warranty

As discussed, windows are a sizable investment, so you'll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, 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.

Castle Rock, CO Window Replacement FAQs

What is the typical cost to install new windows?

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

What are the different types of windows?

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

Do you really need to use a window installation company?

You should use a window installation professional whenever you need to upgrade your windows. Installing windows is a complicated process that can take a lot of time, so it's best handled by the professionals.

How long does it generally take to install windows?

Each window takes about 30 minutes to install based 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.

How often do you need to replace your windows?

Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may need to be replaced.

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