20 Best Window Companies in Johnstown, CO (2024 Reviews)

Thinking about upgrading your windows? We’ve got all the information you need in this guide to the best window installation companies.

We analyzed all the top-rated window companies in Johnstown and selected the best 20 based on:

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

By EcoWatch Local Advisors

Updated June 24, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

A review of the best window installation companies in Johnstown may not seem like the most interesting article on EcoWatch, but trust us, windows have a more direct impact on your life than you might realize. Drafty windows could lead to having higher energy bills during the winter or summer months.

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

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

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

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

Best Window Installation & Replacement Companies in Johnstown

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

Window World logo
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 windows industry, and it currently provides services to 200 locations nationwide.

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

Energy Efficiency of Window World Windows

Window World 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. 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 Johnstown?

Pricing details are not available on Window World’s website because the cost of window replacement depends 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. If you’d like more accurate pricing information, you can get a quote on the company’s website.

Renewal by Andersen logo
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 windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia.

If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen 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. 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 Johnstown?

Pricing details are not available on Andersen’s website because 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. If you’d like more accurate pricing information, you can get a quote on the company’s website.

We strive to stay unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Companies in Johnstown

Renewal by Andersen Window Replacement

Longmont, CO
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Metal Frames

Website: https://fortcollinswindow.com/
Address: 14330 Longs Peak Ct, Longmont, CO 80504
Phone: (970) 305-5060

Champion Replacement Windows of Ft. Collins

Loveland, CO
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon ENERGY STAR® certified
  • Pros icon Price you're quoted is the price you pay
  • Pros icon Free assessment
  • Pros icon Products made in the USA
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.championwindow.com/Ft-Collins/
Address: 5850 Byrd Dr, Loveland, CO 80538
Phone: (970) 744-2604

Champion Replacement Windows of Denver

Denver, CO
4.4
★★★★★
  • Pros icon Price you're quoted is the price you pay
  • Pros icon Products made in the USA
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon ENERGY STAR® certified

Services Offered

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

Website: https://www.championwindow.com/Denver/
Address: 10035 E 40th Ave Suite 400, Denver, CO 80238
Phone: (303) 800-2129

Power Home Remodeling

Centennial, CO
4.4
★★★★★
  • Pros icon Safety-enhanced windows
  • Pros icon Lifetime labor warranty
  • Pros icon Heat-reflective and leak-resistant technology
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://powerhrg.com/
Address: 7304 S Joliet St #100, Centennial, CO 80112
Phone: (303) 357-2484

Window Nation

Aurora, CO
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.windownation.com/denver-window-replacement/
Address: 2450 Airport Blvd, Aurora, CO 80011
Phone: (720) 409-0170

DaBella

Denver, CO
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Triple-pane vinyl windows
  • Pros icon Wide range of styles
  • Pros icon Timely Service
  • Pros icon Customized to your home

Services Offered

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

Website: https://dabella.us/location/colorado/
Address: 6600 E Hampden Ave, Denver, CO 80224
Phone: (720) 619-8704

Custom Exteriors

Berthoud, CO
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://customexteriorsllc.com/
Address: 18674 Co Rd 3, Berthoud, CO 80513
Phone: (970) 460-8714

3 Bidz Windows

Loveland, CO
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: http://www.3bidzwindows.com/
Address: 1633 Foxtrail Dr, Loveland, CO 80538
Phone: (970) 219-6940

Rocky Mountain Glass & Shower LLC

Longmont, CO
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.rmglass.com/
Address: 13631 N 115th St, Longmont, CO 80504
Phone: (970) 347-9710

Window & Siding Outlet

Loveland, CO
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://windowsidingoutlet.com/
Address: 3167 E Eisenhower Blvd C, Loveland, CO 80538
Phone: (970) 233-2263

Glass Doctor of Greeley

Greeley, CO
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

Website: https://glassdoctor.com/greeley
Address: 6310 W 10th St Unit 1, Greeley, CO 80634
Phone: (970) 616-3100

Loveland Window Cleaning Services

Loveland, CO
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: http://www.lovelandwindowcleaningservices.com/
Address: 1083 Winona Dr, Loveland, CO 80537
Phone: (970) 541-3787

Moffat Glass

Evans, CO
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Screen Repair
  • Service icon Vinyl Frames
  • Service icon Glass Showers

Website: http://moffatglass.com/
Address: 3511 W Service Rd, Evans, CO 80620
Phone: (970) 352-6625

Powerhouse Roofing and Exteriors

Greeley, CO
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: http://powerhouseroofingco.com/
Address: 1907 1st Ave, Greeley, CO 80631
Phone: (970) 324-7651

The Glass Guru

Loveland, CO
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.theglassguru.com/fort-collins-co/
Address: 6712 N Franklin Ave, Loveland, CO 80538
Phone: (970) 294-7856

WestPro | Roofing, Siding, Windows

Longmont, CO
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Skylights
  • Service icon Storm/Impact Windows

Website: https://westproroofing.com/
Address: 1321 Sherman Dr, Longmont, CO 80501
Phone: (303) 834-9236

Window Well Replacement LLC

Berthoud, CO
3.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: https://windowwellreplacements.com/
Address: 316 E Michigan Ave, Berthoud, CO 80513
Phone: (720) 727-5839

Slade Glass Co.

Longmont, CO
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

Website: http://www.sladeglass.com/
Address: 504 5th Ave, Longmont, CO 80501
Phone: (303) 776-3400

Colorado Window Experts

Loveland, CO
3.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Repair
  • Service icon Window Replacement/Installation
  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Wood Frames

Website: http://coloradowindowexperts.com/
Address: 220 SW 12th St Ste 109 Suite 109, Loveland, CO 80537
Phone: (970) 699-2060

Josh Brooks Construction and Renovation

Longmont, CO
4.3
★★★★★
  • 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 Skylights
  • Service icon Window Replacement/Installation

Website: https://joshbrooksconstructionllc.com/
Address: 2204 18th Ave Suite 227, Longmont, CO 80503
Phone: (720) 435-4976
Johnstown Window Cost Calculator

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

Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to think about making the switch:

  • Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out harmful UV rays.
  • Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% once you install Energy Star certified windows. In Johnstown, that’s about 460 pounds per year on average.
  • Save money on energy bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you use less energy.
  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.

Estimated Cost of Window Replacement in Johnstown

Each window installer offers various services and has different price points depending on a few factors.

How Much Do New Windows Cost?

According to our research, the typical cost of replacing a single window is about $600. However, window replacement costs can range from $200 to $1,200 a window. This is because of the fact that the cost of window installations depend on several factors specific to your home, including the size, material and number of windows you need to install, as well as where your property is located.

Bear in mind that energy-efficient windows may cost more, but Energy Star predicts the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

We recommend getting 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?

The first step when considering a replacement is to think about whether you should get a full-frame or pocket installation.

A full-frame installation replaces the entire window, including the windowsill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will cost more than a pocket installation. A pocket installation entails installing a new window without replacing the frame. So, instead of taking out the whole window and reinstalling it, the window installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

Your window replacement company should be able to help you decide what’s best for your needs. In Johnstown, the decision will mostly be based on the age of your windows and if there’s any damage. Wood can decay if it’s not properly maintained over the years, so it’s good to have a professional examine your frames and window sills.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

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

How We Choose the Best Window Installers in Johnstown

EcoWatch reviews differ from most reviews, as we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and ranked them using the following methodology:

Service Area

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

Work Quality

We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each installer included in our guide to ensure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

Customer feedback is another super important review factor. If the majority of customers don’t have positive feedback about their service from a certain installer, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window installers won’t always provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that offer a range of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a proven track record in the industry. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Johnstown, CO Window Replacement FAQs

What is the typical cost to replace windows in a home?

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

What kind of window is the most energy-efficient?

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

When do I need to use a window installation company?

You should use a window installation professional whenever you want to replace your windows. Installing windows is a complicated process that can be difficult to do on your own, so it’s best left to the professionals.

When is the best time of year to replace windows?

Replacement windows can be installed any time of the year, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into the home, so the temperature outside isn’t necessarily a big factor. What’s most important is that the weather should be dry.

How long does window installation generally take?

Each window takes about 30 minutes to install based on the type of window. However, the window installation can take two days or more if you have a lot of windows that must be installed.