Top-rated window and door contractors.

Get matched with top window and door contractors in Johnstown, CO

Enter your zip and get matched with up to 5 pros

Need a pro for your window and door contracting project in Johnstown, CO?

Select your specific project to find the pro for you.

TRUSTED BY JOHNSTOWN, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon460
    Verified window and door contracting services reviews

Find Window and door contractors in Johnstown

Avatar for Champion Windows and Home Exteriors of Ft. Collins

Champion Windows and Home Exteriors of Ft. Collins

4.57(
213
)
Approved Pro

Champion Windows and Home Exteriors of Ft. Collins

4.57(
213
)
Approved Pro
Customers say: Quality work
48 local quotes requested
72 years of experience

There’s never been a better time to transform you home with Champion of Ft. Collins! Think of us as a one-stop shop for everything you need to beautify your home’s exterior: windows, sunrooms, siding, roofing and doors. Only Champion offers the superior energy efficiency of Comfort 365 Windows, industry-leading limited lifetime guarantee, and award winning products made in the USA. For over 60 years, Champion has been manufacturing and installing quality windows, doors and sunrooms while creating a seamless experience for our customers. More than 9 out of 10 customers recommend Champion. Not only do Champion products enhance your curb appeal, but can also lower your energy bills, improve the comfort level of your home and reward you with a high return on your investment. Experience the difference Champion products can make for your home today! ENERGY STAR®, NSA, AAMA, Installation Experts, VSI, BBB, NFRC

"Corinna Navarro is amazing, she’s kind and explained everything in detail."

Norma F on November 2025

There’s never been a better time to transform you home with Champion of Ft. Collins! Think of us as a one-stop shop for everything you need to beautify your home’s exterior: windows, sunrooms, siding, roofing and doors. Only Champion offers the superior energy efficiency of Comfort 365 Windows, industry-leading limited lifetime guarantee, and award winning products made in the USA. For over 60 years, Champion has been manufacturing and installing quality windows, doors and sunrooms while creating a seamless experience for our customers. More than 9 out of 10 customers recommend Champion. Not only do Champion products enhance your curb appeal, but can also lower your energy bills, improve the comfort level of your home and reward you with a high return on your investment. Experience the difference Champion products can make for your home today! ENERGY STAR®, NSA, AAMA, Installation Experts, VSI, BBB, NFRC

"Corinna Navarro is amazing, she’s kind and explained everything in detail."

Norma F on November 2025


Avatar for Window Nation Denver

Window Nation Denver

New on AngiNew on Angi
Approved Pro

Window Nation Denver

New on AngiNew on Angi
Approved Pro
135 local quotes requested
19 years of experience

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.


VELUX America

New on AngiNew on Angi
Approved Pro

VELUX America

New on AngiNew on Angi
Approved Pro
543 local quotes requested

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.


Avatar for Modern Dimension Pathways

Modern Dimension Pathways

New on AngiNew on Angi
Approved Pro

Modern Dimension Pathways

New on AngiNew on Angi
Approved Pro
14 local quotes requested
Free onsite estimate

-Modern Dimension Pathways is a company where innovation and modern design meets living spaces. We are passionate about transforming peoples ordinary living spaces into dream state realities and modern sanctuaries. Our mission is to redefine the way people live and experience their environments by using moderns designs and innovative ideas. (Follow if your interested in Modern architecture, hardscape

-Modern Dimension Pathways is a company where innovation and modern design meets living spaces. We are passionate about transforming peoples ordinary living spaces into dream state realities and modern sanctuaries. Our mission is to redefine the way people live and experience their environments by using moderns designs and innovative ideas. (Follow if your interested in Modern architecture, hardscape


"Did not start yet will be in November "

Gisele S on October 2025

Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation

"Did not start yet will be in November "

Gisele S on October 2025


Long Grass Landscape

New on AngiNew on Angi
Approved Pro

Long Grass Landscape

New on AngiNew on Angi
Approved Pro
3 years of experience
Free onsite estimate

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you'll be pleased you did. Thank you

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you'll be pleased you did. Thank you


Avatar for Highland Landscaping & Excavations

Highland Landscaping & Excavations

5.00(
6
)
Approved Pro

Highland Landscaping & Excavations

5.00(
6
)
Approved Pro
Customers say: Quick response
10 local quotes requested
10 years of experience

Highland Hardscapes FC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Cesar did an absolutely incredible job redoing our backyard wood patio! From start to finish, he was professional, detail-oriented, and clearly takes a lot of pride in his work. He walked us through the process, gave thoughtful recommendations, and stuck to both the timeline and budget we discussed. The craftsmanship is top notch and the new patio completely transformed our outdoor space. We’ve already received so many compliments from friends and neighbors. If you’re looking for someone reliable, skilled, and easy to work with, Cesar is your guy. Highly recommend!"

Duncan M on June 2025

Highland Hardscapes FC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Cesar did an absolutely incredible job redoing our backyard wood patio! From start to finish, he was professional, detail-oriented, and clearly takes a lot of pride in his work. He walked us through the process, gave thoughtful recommendations, and stuck to both the timeline and budget we discussed. The craftsmanship is top notch and the new patio completely transformed our outdoor space. We’ve already received so many compliments from friends and neighbors. If you’re looking for someone reliable, skilled, and easy to work with, Cesar is your guy. Highly recommend!"

Duncan M on June 2025


Avatar for 5280 Window Well Covers

5280 Window Well Covers

4.50(
6
)
Approved Pro

5280 Window Well Covers

4.50(
6
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

At 5280 Window Well Covers, we manufacture and install High Grade Makrolon Polycarbonate Covers. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We have over 10 years of experience!

"The cover is thin plexiglass."

Sotiris P on October 2023

At 5280 Window Well Covers, we manufacture and install High Grade Makrolon Polycarbonate Covers. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We have over 10 years of experience!

"The cover is thin plexiglass."

Sotiris P on October 2023


Dcrenovates

4.50(
2
)
Approved Pro

Dcrenovates

4.50(
2
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 years of experience

D C Renovates is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 35 years of experience serving Denver, and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"n/a"

CR D on May 2020

D C Renovates is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 35 years of experience serving Denver, and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"n/a"

CR D on May 2020


I&A Enterprises Welding

5.00(
1
)
Approved Pro

I&A Enterprises Welding

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Our mission at COMPANY NAME is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! COMPANY NAME stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"They do great work in a timely manner!"

Craig P on May 2021

Our mission at COMPANY NAME is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! COMPANY NAME stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"They do great work in a timely manner!"

Craig P on May 2021

...
Showing 1-10 of 227
Window Door Contractors questions, answered by experts

A door sill is the horizontal part of the door frame at the bottom, while a door jamb consists of the vertical parts of the frame on either side. The door sill serves as a threshold, sealing the bottom of the door, while the door jamb provides structural support and houses the hinges and latch. Both are essential components of a door frame, with the door sill acting as a transition point and the door jamb providing stability and functionality.

If you have a sticky door in the summer, the culprit is likely humidity. Humidity can cause wooden doors to swell due to the high moisture levels in the air. A quick fix is to open doors throughout your home to improve air circulation and lower the moisture in your air. A longer-term solution is to use dehumidifiers and ceiling fans.

A door frame is not the same as a door casing. A door frame is the framework surrounding the entire door that supports the area from which the door hangs. The frame is made up of multiple parts, including the door jamb, head, and sill.

Casing refers to the trim work located around the door frame. It connects the door frame to the wall with decorative trim.

There are certainly perks to hiring a general contractor, but we recommend a closet professional. The reason is that their pricing may make more sense for your project. General contractors tend to search out bigger projects, and because of this, will attach a premium to smaller amounts of work. A closet pro may also have access to a wider range of materials than general contractors (and may be able to negotiate better discounts). 

If a wooden door swells from temporary humidity or moisture, it should return to its original size as the environment dries out. However, if the door remains swollen due to prolonged exposure to moisture or water damage, it may not fully revert to its original shape and could require repairs or replacement. Using a dehumidifier and ensuring your doorway has good ventilation can help prevent and reduce swelling in wooden doors.

The Johnstown, CO homeowners’ guide to window and door contracting services

From average costs to expert advice, get all the answers you need to get your job done.