The Best Window Installers in Frederick, CO

Compare the highest-rated windows professionals in Frederick, Colorado. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Longmont Glass & Window

4.8
(240 reviews)
Verified

A family-owned and operated business with a long-standing reputation in Northern Colorado. They are highly regarded for their expert installation, repair services, and extensive selection of energy-efficient windows from top manufacturers. Their focus on customer service and community presence makes them a top choice.

1235 Main Street, Longmont, CO 80501

Specialties & Features

Energy-efficient windows
Residential window replacement
Window repair services

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

The Window Source of Northern Colorado

4.7
(180 reviews)
Verified

A dedicated window and door replacement company known for a streamlined, professional process. They specialize in custom solutions and offer a strong warranty on both product and labor. Their consultants are recognized for being knowledgeable and non-pushy, focusing on educating homeowners.

2845 E Harmony Rd, Fort Collins, CO 80528 (Serves the entire Northern CO region, including Frederick)

Specialties & Features

Custom window solutions
New window installation
Storm windows and security windows

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Pella Windows & Doors of Northern Colorado

4.6
(150 reviews)
Verified

As a flagship location for a leading national manufacturer, this provider offers premium, high-performance products. They are the go-to for homeowners seeking brand-name reliability, innovative custom designs, and superior energy efficiency. Their service includes professional consultation, measurement, and installation.

4550 Inca Street, Denver, CO 80239 (Services extend to the Northern Colorado front range)

Specialties & Features

Energy-efficient windows
Custom window solutions
Residential window replacement

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Frederick

** The windows market in Frederick, Colorado, is characterized by high demand for quality and energy efficiency, driven by the region's climate which features hot summers, cold winters, and strong winds. The competitive landscape is moderate, with a mix of local independent contractors and established regional companies from neighboring hubs like Longmont and Fort Collins vying for business. The average quality of service is high, as contractors must compete on both product excellence and installation expertise to succeed. Homeowners are generally knowledgeable and prioritize long-term value over the lowest price. Typical pricing for a full window replacement on an average home can range from **$8,000 to $25,000+,** heavily dependent on the window brand (e.g., vinyl vs. fiberglass), the level of customisation, and the complexity of the installation. The market strongly favors providers who are licensed, insured, and can clearly demonstrate their expertise with energy-efficient solutions and robust warranties.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Frederick regulations and climate

Frequently Asked Questions About Windows in Frederick

Get answers to common questions about windows services in Frederick, Colorado.

1What is the typical cost range for a full home window replacement in Frederick, and what factors influence the price?

In the Frederick area, a full home window replacement typically ranges from $15,000 to $30,000+, depending on the home's size and window count. Key cost factors include the choice of window material (vinyl, fiberglass, or wood), energy efficiency ratings crucial for our variable Front Range climate, and the complexity of installation in older homes. Local material availability and the higher labor costs in the Denver Metro/Northern Colorado region also impact the final price.

2When is the best time of year to schedule window installation in Frederick, CO?

The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is optimal for installation and allows your home's interior climate control systems to recover before the extremes of summer heat or winter cold. Scheduling well in advance for these windows is critical, as Colorado's short shoulder seasons book local installers quickly.

3Are there specific energy efficiency features I should prioritize for Frederick's climate?

Absolutely. Given Colorado's high altitude, intense sun, and cold winters, look for windows with a low U-factor (for insulation against cold) and a low Solar Heat Gain Coefficient (SHGC) to manage summer heat gain. Double-pane, Low-E argon-filled windows are a standard effective recommendation. For south and west-facing windows, consider tinted or spectrally selective Low-E coatings to combat glare and heat from the strong Colorado sun.

4Do I need a permit from the Town of Frederick to replace my windows?

Generally, a simple window replacement in an existing opening does not require a building permit from the Town of Frederick, provided there are no structural changes to the wall. However, if you are altering the opening's size, changing egress requirements (especially in bedrooms), or live in a homeowners association (HOA), you must check specific HOA covenants and may need approval. Always verify current requirements with the Frederick Building Department.

5How do I choose a reputable window installation contractor in the Frederick area?

Select a contractor who is licensed, insured, and has verifiable local references. Look for companies experienced with Colorado's specific weatherization challenges and familiar with Frederick's common home styles and potential issues like expansive soils. Ensure they provide a detailed, written estimate and warranty covering both the product and their labor. Checking their standing with the Colorado Office of the Attorney General and the BBB is also highly recommended.