Mahoney construction did multiple jobs for our school. Everything from interior carpentry, trim, door hanging, deck, building, and modular classroom construction. They are the most efficient contractor we?ve worked with. Their staff is very competent and professional!

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TRUSTED BY COLUMBIA FALLS, MT HOMEOWNERS
4.3
Average homeowner rating32
Verified window and door contracting services reviews
Verified Reviews for Window And Door Contracting pros in Columbia Falls, MT
Last update on October 10, 2025
- Josh L.
- Bruce C.
Colt is a great young man. He's honest and hardworking, and he is knowledgeable handyman in the Valley. He will make sure to get the job "dunn" right before leaving the project. I hired him to help finish interior trim, hang doors, shiplap walls and etc on a new construction...
- Donald H.
Robert was amazing. He built us a barn door that separates our upstairs and basement, built two linen closets in our master bedroom, installed a bookcase/hidden door in our basement, installed shelves in our bathroom and replaced a steel grate in a hallway floor with plywood. He always showed...
- Karissa R.
Ron Lords (president of Eagle's Landing Real Estate & Eagle's Landing Legal Services) was hired to build a house to our specifications and serve as the general contractor (he purchased the land and obtained the constrution loan, then sold us the finished product; this is how he does...
- Jennifer F.
They were very professorial and attentive. They came out and did the doors first it didn't take them long and it looked great when they were finished, Then they started the siding next, we decided to go with a vertical look to our siding and it looks really nice, The guys answered any...
- Mary D.
I've used them since 1995. I have an annual maintenance contract with them. The quality of their work stands out. They put on the little booties before they enter the door. The maintenance contract covers my heating system, the air conditioning system, and the whole house generator.
Find Window and door contractors in Columbia Falls

Renewal by Andersen of Montana
Renewal by Andersen of Montana
Renewal by Andersen of Montana is the full service replacement division of Andersen Windows servicing the entire state of Montana with start to finish window and patio door replacement. We are the only replacement window on the market made of Fibrex material. All of our windows and doors are installed by our certified master installers. We offer free in-home estimates and have financing available.
"Our experience with RbA of Montana was wonderful. Major remodels (22 windows) can cause some anxiety. But we were kept informed every step of the way and the windows were installed quickly and efficiently. And we had NO finishing work to do when the crew left. Great experience!"
Marci W on October 2025
Renewal by Andersen of Montana is the full service replacement division of Andersen Windows servicing the entire state of Montana with start to finish window and patio door replacement. We are the only replacement window on the market made of Fibrex material. All of our windows and doors are installed by our certified master installers. We offer free in-home estimates and have financing available.
"Our experience with RbA of Montana was wonderful. Major remodels (22 windows) can cause some anxiety. But we were kept informed every step of the way and the windows were installed quickly and efficiently. And we had NO finishing work to do when the crew left. Great experience!"
Marci W on October 2025
VELUX America
VELUX America
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.

Renewal by Andersen
Renewal by Andersen
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025
Flathead Handyman Services, LLC
Flathead Handyman Services, LLC
Flathead Handyman Services, LLC 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.
"he know how to milk the clock. he has to be the slowest person I have seen. 20 minutes to get the tools together then has to smoke and drink his drink. 9 hours to fix a 2 x2 floor. didn't tell me about his rate per hour. said he would be there at 10am showed up at 11am. BEWARE DO NOT HIRE!!!"
Jacqueline D on October 2023
Flathead Handyman Services, LLC 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.
"he know how to milk the clock. he has to be the slowest person I have seen. 20 minutes to get the tools together then has to smoke and drink his drink. 9 hours to fix a 2 x2 floor. didn't tell me about his rate per hour. said he would be there at 10am showed up at 11am. BEWARE DO NOT HIRE!!!"
Jacqueline D on October 2023

Peak Builders, LLC
Peak Builders, LLC
Peak Builders, LLC, is a carpentry based general contractor that oversees all phases of your project from planning and budgeting to final project completion. Making it our mission to bring your ideas to reality in an organized structured fashion with an emphasis on clear communication. Our goal is when you think of quality homes and fine craftsmanship you think Peak Builders. We look forward to working with you!
"Great job. Jonathan was very quick with communication, priced out the job and completed the work in a completely professional manner. I would definitely use him again and highly recommend him."
David L on February 2020
Peak Builders, LLC, is a carpentry based general contractor that oversees all phases of your project from planning and budgeting to final project completion. Making it our mission to bring your ideas to reality in an organized structured fashion with an emphasis on clear communication. Our goal is when you think of quality homes and fine craftsmanship you think Peak Builders. We look forward to working with you!
"Great job. Jonathan was very quick with communication, priced out the job and completed the work in a completely professional manner. I would definitely use him again and highly recommend him."
David L on February 2020
Mountain View Builders MT, LLC.
Mountain View Builders MT, LLC.
Welcome to Mountain View Builders MT, LLC.!We are committed to exceeding your expectations. As experts, we will handle your needs with the high quality expertise, that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!
Welcome to Mountain View Builders MT, LLC.!We are committed to exceeding your expectations. As experts, we will handle your needs with the high quality expertise, that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!

Rugged Ridge Contracting
Rugged Ridge Contracting
Profile Rugged Ridge Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Tallon did a wonderful job installing our kitchen window when another contractor left us high and dry! He replaced all the trim and we are getting bids for other items. He showed up on time and cleaned up after. Great person, very respectful and knew what he was doing. We look forward to working with him in the future."
Sandy G on June 2025
Profile Rugged Ridge Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Tallon did a wonderful job installing our kitchen window when another contractor left us high and dry! He replaced all the trim and we are getting bids for other items. He showed up on time and cleaned up after. Great person, very respectful and knew what he was doing. We look forward to working with him in the future."
Sandy G on June 2025
Resolute Repairs
Resolute Repairs
At Resolute Repairs we will fulfill all of your handyman or remodel needs. Our skilled craftsman can bring your dreams to life, and strive to go above and beyond your expectations. This owner operated company is backed by twelve years of experience right here in the flathead valley.
At Resolute Repairs we will fulfill all of your handyman or remodel needs. Our skilled craftsman can bring your dreams to life, and strive to go above and beyond your expectations. This owner operated company is backed by twelve years of experience right here in the flathead valley.
Ox-Glass
Ox-Glass
Hello I am regional sales consultant for Ox-Glass residing in Ravalli county. We have a great line up on life time warrantied Alside windows. Call or text for a consultation/quote tailored your home and your needs.
Hello I am regional sales consultant for Ox-Glass residing in Ravalli county. We have a great line up on life time warrantied Alside windows. Call or text for a consultation/quote tailored your home and your needs.
Carpentry
Carpentry
I build decks, sheds, pole barns, remodels, framing, siding, flooring, etc. am available for any job.
I build decks, sheds, pole barns, remodels, framing, siding, flooring, etc. am available for any job.
FAQs for window and door contracting projects in Columbia Falls, MT
Door installation usually takes three and four hours, including removing the old door and frame, fitting the new door and frame in place, shimming it to make sure it’s perfectly level, and making adjustments to the hinges and locking mechanisms to ensure proper functionality. A door-hanging professional can replace an interior door in between one and two hours. Door installation will take significantly longer if your installer needs to create a wall opening, and it can take less time if the existing door frame remains.
If you have a problem with your window, such as broken glass, minor leaks, or a problem with your window being stuck, repairing the broken part might be a cheaper option than replacing the entire window. However, if you have a deteriorating window frame or major leaks, buying a new window will be the better long-term solution.
The average cost to install a door is around $1,100, but you could pay anywhere from $150 for a hollow-core interior door installation up to $2,000 or a high-end exterior door installation. There are a few cost factors to consider to get an accurate price, including whether your wall opening exists, the type of door, the quality and security of the door, whether you need to replace the frame, and the door size. You can expect to pay $150 to $700 for a standard 36-by-80-inch door and between $400 and $1,600 for an 80-by-48-inch door.
Window replacement costs between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot.
It’s possible to install a door yourself if the wall opening already exists, but the work is rather complicated, and a professional installation is usually well worth the investment. For your door to work and close properly, you’ll need to shim and level the door frame in your wall perfectly, which can be difficult. Additionally, we recommend you always hire a professional door installer to place an exterior door, as mistakes during the installation process can lead to poor security for your home.
The Columbia Falls, MT 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.
Screen door installation costs depend on size, type of frame material, and the number of doors. Here’s everything you need to know.
A storm door can protect your front door and let in more fresh air. Find out how much storm door installation costs for materials, labor, and more.
French doors upgrade your space and fill it with natural light. Use this guide so that you can accurately budget the cost to install French doors.
Learn about the 5 most common bifold door problems and practical solutions to fix them—repair sticking, misalignment, broken tracks, and more.
Patio doors come in a variety of materials and styles. Learn how to choose the best material for your patio doors.
Are you curious whether a storm or security door is right for your home? We explore the differences and benefits of these two types of doors.
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