10 Best Window Replacement Companies in Frederick, CO

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Last Updated: February 25, 2025

Whether you want to increase your home's value, energy efficiency, or both, upgrading your windows is an excellent idea. According to the Department of Energy, heat gained or lost through drafty windows could account for 25–30% of the heating and cooling costs in your home. By installing energy-efficient windows, you could save an extra $457 on your electricity bills annually in Frederick. If you can't decide between window installers, this is the best place to get started. Keep reading to discover the best window installation companies in Frederick.

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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 Frederick

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

Price transparency

Good customer service

Free assessment

Also offers door installation and replacement

Educational website

Comprehensive 20-year warranty

Hassle-free window replacement

Services Offered

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

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

Energy star® certified

Good customer service

Free assessment

Products made in the usa

Price transparency

Price you're quoted is the price you pay

Services Offered

Glass doors
Window replacement/installation
Double-hung
Bay windows

Champion Replacement Windows of Denver

Champion Replacement Windows of Denver Logo

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User Rating

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

Good customer service

Price transparency

Free assessment

Services Offered

Bay windows
Window replacement/installation
Glass doors
Double-hung

Power Home Remodeling

Power Home Remodeling Logo

Our Rating

User Rating

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

Price transparency

Free assessment

Timely service

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

Wide range of styles

Customized to your home

Good customer service

Triple-pane vinyl windows

Timely service

Services Offered

Window replacement/installation
Double-hung
Vinyl frames
Glass doors

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

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

Good customer service

Educational website

Free assessment

Services Offered

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

Timely service

Financing options available

Educational website

Fast emergency response

Good customer service

Free assessment

Price transparency

Commercial and residential

Services Offered

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

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

Infinity by marvin windows

Educational website

Free assessment

Durable and efficient upgrades

Good customer service

Price transparency

Free consultation

Services Offered

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

Dreamstyle Remodeling

Dreamstyle Remodeling Logo

Our Rating

User Rating

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

Comprehensive warranty

Educational website

Low-emissivity glass coatings

Price transparency

Uv-blocking options

Free assessment

Good customer service

Services Offered

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

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

Energy-efficient options
Double-hung
Bay windows
Fiberglass frames
Vinyl frames
Storm/impact windows
Glass doors
Window replacement/installation
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 Frederick?

The amount you'll spend on window installation or replacement varies based on several factors, including how difficult your windows are to access or install, the materials you choose, and the number and size of the windows. On average, homeowners in Frederick should expect to spend around $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

Replacing your current windows with new energy-efficient ones can significantly improve your home's insulation, value, appearance, noise reduction, and comfort. Clear indicators it's time to invest in new windows include:

  • Fogging between window panes, condensation issues, or rotting window frames that allow moisture intrusion into the home.
  • Windows that are hard to open, close, or lock properly due to age and wear.
  • Drafts and cold air leaking in from old, loose-fitting windows.
  • Outdated and inefficient window styles that reduce your house's curb appeal.
  • Discomfort and high energy bills from poor insulation around windows.

How To Choose a Window Company

Hiring an experienced window installer contributes to good results and a great experience. Below, we outline the main factors to consider when choosing a qualified window installer.

Experience

Look for an established local window company with a proven track record of success installing all window types. Experienced providers are more likely to have an in-depth knowledge of Frederick's climate and local homeowner requirements. To verify a provider's reputation, request references from recent customers.

Certifications

Look for installers that are backed by leading window manufacturers and certified by leading industry groups, including the Fenestration and Glazing Industry Alliance, formerly known as the AAMA. Appropriate accreditation indicates that a provider has gotten proper training in installation best practices. Ensure installers are employees rather than subcontractors. Verify that the technicians assigned to your job have the right certifications.

Reputation

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

Process

The best window installation providers will supply a detailed project plan and schedule, clear expectations, and an overview of all material and installation options. Avoid companies that offer vague quotes or timelines that lack necessary details. Look for ongoing contact throughout the process to avoid surprises later in the project.

Warranties

Look into window installers that provide installation guarantees on materials and labor. This indicates confidence in their work. Seek out companies with unlimited lifetime warranties that can transfer to new homeowners.

Materials

Verify that your window provider works with long-lasting, durable brands, offers energy-efficient window options, and fits your budget. Look for window options with good energy ratings, design flexibility, and enhanced UV protection, and check whether the materials include their own manufacturer warranties.

Frequently Asked Questions About Window in Frederick, CO

In Frederick, the best time to install windows is when temperatures are mild, generally in the spring or fall. This allows installers to work without having to worry about extreme temperatures.

The right type of replacement windows for your Frederick home depends on the year your home was built –the average house in Frederick was built around 1996. For older homes, you may want to consider energy-efficient windows such as double-glazed windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a timeless look that's perfect for older homes. For newer homes, you might want to think about vinyl windows, which are affordable, durable and have a modern look.

The types of window that usually last longest are ones constructed from vinyl or wood, with triple glaze for extra insulation. Vinyl windows are known for their durability and require minimal maintenance, while wood windows offer a more timeless look. Tripling up on the glazing will reduce heating and cooling bills in the long run.

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

Replacing your own windows can be a difficult task, especially in Frederick, where temperatures can get quite warm. It's generally best to hire a skilled window installer. They have the knowledge and experience to ensure your windows are properly installed and that you get the most out of your investment.

After window installation, it's important to check for any air leaks and make sure the windows are properly sealed. You should also wash the windows regularly to stop debris from building up and leading to damage. Additionally, you should inspect the window sills and frames once a year to ensure that the seals are not deteriorating or breaking.

Other Frederick, CO Home Services

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