10 Best Window Replacement Companies in Johnstown, CO

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Last Updated: February 25, 2025

Whether you're looking to upgrade your home or are simply in need of a change, upgrading your windows is a great plan. Your windows play a vital role in your home's value and its energy efficiency. In Johnstown, where the electricity bills are an average of $970 per year, you could be spending an extra $290 annually due to outdated windows. The Department of Energy estimates that heat gained or lost through windows could account for around 30% of residential energy climate costs. Picking the right company for you is a big decision. That's why we've curated this list of the best window installation companies in Johnstown.

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Top Pick
4.1/5
  • Great quality
  • Free assesment
  • Timely Service
Best Customer Service
4.3/5
  • Great customer service
  • Transparent pricing
  • Award winning company
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty

Top 10 Best Window Replacement Companies in Johnstown

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen Window Replacement

Renewal by Andersen Window Replacement Logo

Our Rating

User Rating

1401 W Bayaud Ave #7, Denver, CO 80223 (720) 263-7039 renewalbyandersendenver.com

Comprehensive 20-year warranty

Also offers door installation and replacement

Free assessment

Good customer service

Hassle-free window replacement

Price transparency

Educational website

Services Offered

Glass doors
Double-hung
Vinyl frames
Custom window designs
Bay windows
Window replacement/installation
Energy-efficient options

Champion Replacement Windows of Ft. Collins

Champion Replacement Windows of Ft. Collins Logo

Our Rating

User Rating

5850 Byrd Dr, Loveland, CO 80538 (970) 744-2604 championwindow.com

Products made in the usa

Free assessment

Good customer service

Price you're quoted is the price you pay

Price transparency

Energy star® certified

Services Offered

Glass doors
Bay windows
Double-hung
Window replacement/installation

Champion Replacement Windows of Denver

Champion Replacement Windows of Denver Logo

Our Rating

User Rating

10035 E 40th Ave Suite 400, Denver, CO 80238 (303) 800-2129 championwindow.com

Good customer service

Free assessment

Price transparency

Services Offered

Bay windows
Window replacement/installation
Double-hung
Glass doors

Power Home Remodeling

Power Home Remodeling Logo

Our Rating

User Rating

7304 S Joliet St #100, Centennial, CO 80112 (303) 357-2484 powerhrg.com

Timely service

Free assessment

Price transparency

Good customer service

Services Offered

Energy-efficient options
Window replacement/installation

DaBella

DaBella Logo

Our Rating

User Rating

6600 E Hampden Ave, Denver, CO 80224 (720) 619-8704 dabella.us

Customized to your home

Triple-pane vinyl windows

Good customer service

Timely service

Wide range of styles

Services Offered

Double-hung
Vinyl frames
Glass doors
Window replacement/installation

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

6712 N Franklin Ave, Loveland, CO 80538 (970) 294-7856 theglassguru.com

Free assessment

Educational website

Good customer service

Services Offered

Vinyl frames
Triple pane glass
Glass doors
Custom glass
Energy-efficient options
Storm/impact windows
Window replacement/installation
Metal frames
Skylights
Mirrors
Screen repair
Wood frames
Glass showers
Glass repair
Window repair
Fiberglass frames
Tempered glass

United Windows Pro - Windows and glass repair

United Windows Pro - Windows and glass repair Logo

Our Rating

User Rating

4515 S Nepal Ct, Aurora, CO 80015 (720) 400-2929 unitedwindowspro.com

Commercial and residential

Educational website

Free assessment

Price transparency

Financing options available

Fast emergency response

Timely service

Good customer service

Services Offered

Glass repair
Window repair
Wood frames
Energy-efficient options
Window replacement/installation
Glass doors
Triple pane glass
Tempered glass

Lifetime Windows & Siding

Lifetime Windows & Siding Logo

Our Rating

User Rating

9525 E 40th Ave Unit 160A, Denver, CO 80238 (303) 536-8809 lifetimewindows.com

Price transparency

Good customer service

Free consultation

Free assessment

Educational website

Durable and efficient upgrades

Infinity by marvin windows

Services Offered

Glass showers
Fiberglass frames
Glass doors
Custom window designs
Energy-efficient options
Double-hung
Window replacement/installation

Dreamstyle Remodeling

Dreamstyle Remodeling Logo

Our Rating

User Rating

637 Osage St, Denver, CO 80204 (303) 676-8172 dreamstyleremodeling.com

Good customer service

Price transparency

Uv-blocking options

Low-emissivity glass coatings

Educational website

Free assessment

Comprehensive warranty

Services Offered

Custom window designs
Glass showers
Bay windows
Window replacement/installation
Glass doors
Double-hung

K&H Home Solutions

K&H Home Solutions Logo

Our Rating

User Rating

6870 W 52nd Ave #107, Arvada, CO 80002 (720) 707-0779 khwindows.com

Good customer service

Educational website

Price transparency

Free assessment

Services Offered

Bay windows
Window replacement/installation
Vinyl frames
Energy-efficient options
Fiberglass frames
Storm/impact windows
Glass doors
Double-hung
Glass showers
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Johnstown?

The cost of window installation or replacement is influenced by a number of factors, including the number and size of the windows, how difficult your windows are to access or install, and the materials you choose. On average, homeowners in Johnstown should expect to spend roughly $270 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Adding new energy-efficient windows can substantially enhance your home's comfort, value, insulation, noise reduction, and appearance. Signs that it's time to invest in new windows include the following:

  • Cold air and drafts coming in through old, loose-fitting windows.
  • Outdated and inefficient window styles that reduce your house's curb appeal.
  • Windows that are hard to close, open, or lock properly due to age and wear.
  • Fogging between window panes, condensation issues, or rotting window frames letting in moisture.
  • High energy bills and discomfort due to poor insulation around windows.

How To Choose a Window Company

Picking a window installer with appropriate qualifications helps ensure a smooth installation. We explain the main factors to consider when selecting a qualified company below.

Experience

Find well-established local installers with lots of experience. Installers that have been installing windows locally for many years are more likely to know the local climate and how to best meet your needs. Request references from recent customers to confirm a company’s reputation.

Certifications

Choose companies that have certifications from leading window brands, and that have Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Having certification shows they've gotten suitable training in installation best practices. Make sure installers are staff rather than subcontractors, and confirm the technicians doing your job are certified.

Reputation

Read through online customer feedback, check the Better Business Bureau (BBB), and ask for local references. Review customer feedback to confirm that the contractor consistently provides quality work and good customer service. Avoid contractors that have complaints of shoddy work or unfinished jobs.

Process

A quality window installer will be able to provide a complete project plan, reasonable timelines, clear expectations, and an overview of all material and installation options. Avoid companies that provide unclear quotes or schedules. Look for consistent contact through the whole process to avoid surprises once installation is underway.

Warranties

Seek out contractors that stand behind their work and offer warranties on labor and materials. This shows trust in their window installations. Look for unlimited lifetime warranties that can even be transferred to new homeowners.

Materials

Confirm that your window provider offers windows built for longevity as well as leading energy-efficient window bands that fit your budget. Research choices with design flexibility, good energy ratings, and enhanced UV protection, and verify that the materials have their own manufacturer warranties.

Frequently Asked Questions About Window in Johnstown, CO

The ideal time to install windows in Johnstown is when temperatures are moderate, generally in the spring or fall. This allows installers to do their work without having to worry about extreme temperatures.

The best type of replacement window for your Johnstown home will depend on the age of your home, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's more modern — so your new windows match. Wood windows can give a classic look and feel, while vinyl-framed windows are more popular in more modern homes. Fiberglass-framed windows are also a popular choice, since they are energy efficient and durable.

You can save money on window installation by choosing a less expensive option like single-hung vinyl windows. These have lower costs compared to other kinds of windows such as double-hung, wood, or fiberglass windows.

The installation process for windows typically takes a day or two depending on the number of windows to be installed. Professional window installers will be able to provide an estimate on the time it will take to complete the installation job, but you can expect it to take around 30 minutes per window.

In some cases, you can install your own windows, but it's recommended to hire a professional. It's important to consider the local climate when replacing windows, as it will have an effect on the process. For example, the temperatures in Johnstown can reach an average low of 38, so you need to think about energy-efficient windows that can deflect from the cold. It's also important to get the measurements right and follow the instructions for installation. Hiring a professional for your window replacement project will guarantee that everything is done correctly.

If you live in a drier climate like Johnstown, you may only need to wipe away any debris or dirt buildup from the windows occasionally. Additionally, you need to inspect your windows monthly to make sure they're working correctly. It's also a good idea to have a professional inspect your windows once a year for any potential damages or issues.

Yes, many window companies offer financing for their services. Different companies have different financing options, so you should do your research to find the best option for you. Depending on your income level, which is a median of $120,395 a year in Johnstown, you may be able to qualify for lower interest rates.

Other Johnstown, CO Home Services

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