Top 10 Window Installers in Longmont, CO

Porch Pro Headshot High West Siding and Windows Inc
Window Contractors
Serves Longmont, Colorado
(185)
High West Siding & Windows is a full-service residential remodeling company that specializes in exterior renovations. With over 25 years of experience serving Colorado Springs and the surrounding areas, we take great pride in our extreme professionalism, timeliness, and superior customer service. So...Read more about High West Siding and Windows Inc
High West Siding & Windows is a full-service residential remodeling company that specializes in exterior renovations. With over 25 years of experience serving Colorado Springs and the surrounding areas, we take great pride in our extreme professionalism, timeliness, and superior customer service. So...Read more about High West Siding and Windows Inc
Porch Pro Headshot Old World Roofing
Window Contractors
Serves Longmont, Colorado
(157)
Old World Roofing is the most trusted name in the roofing industry for projects near Colorado Springs, Pueblo, and Denver. We have been providing quality roof replacement and repair services since 1977. Our team offers over 35 years of roofing knowledge and expertise, providing the best quality mate...Read more about Old World Roofing
Old World Roofing is the most trusted name in the roofing industry for projects near Colorado Springs, Pueblo, and Denver. We have been providing quality roof replacement and repair services since 1977. Our team offers over 35 years of roofing knowledge and expertise, providing the best quality mate...Read more about Old World Roofing
Porch Pro Headshot DMD Window & Door
Window Contractors
Serves Longmont, Colorado
(140)
We are Colorado’s largest Pella windows and doors contractor. DMD Window & Door has been beautifully renovating Denver for over 40 years. We started as a home renovation company in 1974, then began to change our business towards windows and doors replacement and repair in 1980. We install only the b...Read more about DMD Window & Door
We are Colorado’s largest Pella windows and doors contractor. DMD Window & Door has been beautifully renovating Denver for over 40 years. We started as a home renovation company in 1974, then began to change our business towards windows and doors replacement and repair in 1980. We install only the b...Read more about DMD Window & Door
Porch Pro Headshot Stonebrook Roofing, Inc.
Window Contractors
Serves Longmont, Colorado
(171)
Stonebrook Roofing in Montezuma is one of the best window replacement companies in town. Give them a call when you're ready to swap out your old windows for new ones.
Stonebrook Roofing in Montezuma is one of the best window replacement companies in town. Give them a call when you're ready to swap out your old windows for new ones.
Porch Pro Headshot CWS Exteriors
Window Contractors
Serves Longmont, Colorado
(86)
The BBB A+-rated (as of January 2018) professionals at Colorado Window Source and More in Saddle Ridge, CO can easily and quickly help you replace the windows in your home before the seasons change.
The BBB A+-rated (as of January 2018) professionals at Colorado Window Source and More in Saddle Ridge, CO can easily and quickly help you replace the windows in your home before the seasons change.
Porch Pro Headshot 5 Star Roofing & Home Improvement
Window Contractors
Serves Longmont, Colorado
(81)
Make replacing windows in your home a breeze with some help from 5 Star Roofing & Home Improvement in Kirk, rated 4 stars by previous clients.
Make replacing windows in your home a breeze with some help from 5 Star Roofing & Home Improvement in Kirk, rated 4 stars by previous clients.
Porch Pro Headshot Urban Exteriors
Window Contractors
Serves Longmont, Colorado
(67)
Located in Peetz, CO, Urban Exteriors offers 5-star vinyl siding services to protect your property from harsh weather.
Located in Peetz, CO, Urban Exteriors offers 5-star vinyl siding services to protect your property from harsh weather.
Porch Pro Headshot DMH Painting & ReModeling
Window Contractors
Serves Longmont, Colorado
My services exist as a means for consumers to experience professional painting & re-modeling services at a reasonable price. My low overhead and extensive experience with all types of home improvement projects allows this. The primary goal is to help people afford quality work.
My services exist as a means for consumers to experience professional painting & re-modeling services at a reasonable price. My low overhead and extensive experience with all types of home improvement projects allows this. The primary goal is to help people afford quality work.
Porch Pro Headshot Lightning Glassworks & Screens
Window Contractors
Serves Longmont, Colorado
(10)
The 5-star-rated Lightning Glassworks & Screens in Ridgway, CO is your one-stop shop for all of your window repair needs.
The 5-star-rated Lightning Glassworks & Screens in Ridgway, CO is your one-stop shop for all of your window repair needs.
Porch Pro Headshot Metro Construction
Window Contractors
Serves Longmont, Colorado
(214)
Metro Construction in Redstone is here to lend you a helping hand with your next vinyl siding project.
Metro Construction in Redstone is here to lend you a helping hand with your next vinyl siding project.

Top questions to ask before hiring a window installer

A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.

Do you want professionals to do everything, or do you have the time and skill to do some of the work?

Many projects such as have a DIY component, such as painting or cleanup.

First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.

Recent reviews for Longmont Window Replacement & Installation Companies

24838

The company responded within 1/2 day to our RFP for the roof repair. They visited and took pictures but did not have feet on the roof. I would not have hesitated to use them, but others were more thorough in their inspection of the work to be done. They a...

- Frank Olsen
75280

We got all new windows in our 1905 home in 2016 and I have never enjoyed our house more! This place is airtight! We can sit in any room of the house and enjoy it without drafts and with a very professional look to the windows throughout the house that did...

- Monica Moore
61332

We love our new windows! The whole experience was great, from the salesman to the installer, and the follow up inspections. We have had wonderful service. We will recommend Colorado Window Source to everyone. Also, we will be contacting Colorado W...

- John and Teresa Cronk
96641

I was very impressed with your team that put in my new windows; they were very professional, fast and cleaned up the mess. From the start with Paolo, Tisha and Michael, everything went very smooth. Anyone I know that is looking for new replacement window...

- Jeanie Deiter
63023

We got new windows from Colorado Window Source and our experience was great. Everything from getting the 1st quote to choosing the best product for our house to the final measure to the installation was a pleasure to work with. Open communication is imp...

- Brian Bradford
112617

This company is absolutely wonderful! They are honest about work to be completed and appropriate recommendations & solutions to current window problems. Our salesperson went above and beyond helping us with our our current situation. We highly recommend t...

- K Gartner
64999

I hired Colorado Window Source to replace the windows and sills in my home, along with outside wood trim on several windows. Scheduled for 2 days, the installers rushed the job leaving at 1:30pm on the first day and 2:30pm on the second. On the first d...

- Jacquelyn obrien
52652

They are awesome!! We needed new blinds and windows. The pricing was great, the staff was amazing, and the experience overall was one of kind. Since getting the new windows our electricity bill has went down significantly since the install. The receptioni...

- Jennifer Christman
67344

Three weeks ago we had someone come out to give us an estimate on replacing 21 windows. We visited the showroom to look at our options in more detail. I have never received an estimate. Called three times but still no estimate. If this is the follow...

- Thomas Peterson
140547

Tom is a very hard working, efficient, and thorough worker. He gets the job done in a timely manner and at the same time it also gets done the right way the first time.

- Sky Phillips
140999

Tom has done many projects for us in the past.. He was always professional in the way he went about his tasks. As with many projects .. unexpected problems would appear ... and he'd come up with the solution... a real "problem solver ".

- rob ketchum
14004

Everything You Need to Know About Longmont Window Installers

How does invoicing/payment work for most Window Replacement & Installation Company projects in Longmont?

Every project differs, but you should ask any window replacement & installation company for an estimate, before they do any work. In fact, ask for their general payment terms before any window services work is done.

If the job is large and going to take longer than a day, it's common practice for window replacement & installation companies to request a down payment. Usually, this will be around 25% so they can commence work on your window replacement & installation company project.

If it's a quick job, you'll likely be given an invoice/bill when the job is complete. Then it's up to you and the window replacement & installation company to determine if you pay immediately or can send payment at a later date.

How do I know that I found the right Window Replacement & Installation Company in Longmont for my window services project?

Finding the right window replacement & installation company for your project can be stressful.... when you don't search with Porch. We've pulled together everything you need to know about Window Services in Longmont so you can have some peace of mind before starting your project.

Here’s what you need to know to choose the right window replacement & installation company in Longmont:

  • Are they BBB accredited? 10 pros in Longmont are.
  • Check if they are they BBB rated: 14 are A-rated in Longmont.
  • Is the quality worth the price? Make sure to find the window replacement & installation company that can deliver the quality you're looking for, without going way over your budget. Don't forget that every job is going to be different.
  • Speak with them over the phone: Contact multiple window contractors pros to see if you’re on the same page when it comes to your project.

Can I browse unscreened Window Replacement & Installation Companies in Longmont?

We do our best to screen all of our window replacement & installation companies. However, there are still some window replacement & installation company professionals in Longmont that have not been pre-screened. This means that their licenses may not be up to date to operate in Longmont or CO. Always be sure to pre-screen them yourself before hiring. Here are some unscreened professionals offering window services:

  • Smart Windows Colorado:
    • Active/Verified License: No, current status is inactive
  • Roconstruction Inc:
    • Services Offered: Window Contractors
    • Active/Verified License: No, current status is inactive
  • BackBone Construction:
    • Active/Verified License: No, current status is inactive

All Window Installers in Longmont, CO

Porch Pro Headshot Smart Windows Colorado
Window Contractors
Serves Longmont, Colorado
(19)
Replace the old windows on your home with some help from the experts at Smart Windows Colorado in Windsor, CO.
Replace the old windows on your home with some help from the experts at Smart Windows Colorado in Windsor, CO.
Porch Pro Headshot Watchman Home Repairs
Window Contractors
Serves Longmont, Colorado
(2)
I've got 17 years of General Contracting. I've done small jobs up to flipping houses. In my career, I've assisted home owners, property owners, investors and dealt with government (building dept, health dept, housing, EPA etc). I've got the most experience in HVAC under two companies.
I've got 17 years of General Contracting. I've done small jobs up to flipping houses. In my career, I've assisted home owners, property owners, investors and dealt with government (building dept, health dept, housing, EPA etc). I've got the most experience in HVAC under two companies.
Porch Pro Headshot Colorado Custom Glass
Window Contractors
Serves Longmont, Colorado
(104)
Create a strong, tight seal from the outdoor elements with properly installed windows from Colorado Custom Glass in St. Mary's, CO.
Create a strong, tight seal from the outdoor elements with properly installed windows from Colorado Custom Glass in St. Mary's, CO.
Porch Pro Headshot Handy Home Services
Window Contractors
Serves Longmont, Colorado
I have been in business for myself going on seven years, and have many great references. Most of my business comes through word of mouth advertising. However, I realize that there is a demand for general handyman services and want to serve more customers through this platform. My goal is is to provi...Read more about Handy Home Services
I have been in business for myself going on seven years, and have many great references. Most of my business comes through word of mouth advertising. However, I realize that there is a demand for general handyman services and want to serve more customers through this platform. My goal is is to provi...Read more about Handy Home Services
Porch Pro Headshot Vertical-5 Handyman Services
Window Contractors
Serves Longmont, Colorado
Vertical-5 Handyman Services is a small, one-man operation focusing on quality craftsmanship and outstanding service. We are backed by over 30 years experience in the construction and painting industry. Fully insured and reliable for any home improvement job you may need done.
Vertical-5 Handyman Services is a small, one-man operation focusing on quality craftsmanship and outstanding service. We are backed by over 30 years experience in the construction and painting industry. Fully insured and reliable for any home improvement job you may need done.
Porch Pro Headshot Dream Catcher Construction
Window Contractors
Serves Longmont, Colorado
When it comes to Remodeling, Home Additions and Kitchen Remodeling, no one compares to Gorilla Construction And Remodeling. With years of combined experience, Gorilla Construction And Remodeling has worked hard to build the trust of our clients in Longmont, Boulder, Loveland and beyond. Visit our we...Read more about Dream Catcher Construction
When it comes to Remodeling, Home Additions and Kitchen Remodeling, no one compares to Gorilla Construction And Remodeling. With years of combined experience, Gorilla Construction And Remodeling has worked hard to build the trust of our clients in Longmont, Boulder, Loveland and beyond. Visit our we...Read more about Dream Catcher Construction
Porch Pro Headshot BackBone Construction
Window Contractors
Serves Longmont, Colorado
The professionals at BackBone Construction in Windsor can help you put an end to your window dilemmas.
The professionals at BackBone Construction in Windsor can help you put an end to your window dilemmas.
Porch Pro Headshot Certified Windows & Siding
Window Contractors
Serves Longmont, Colorado
Get your windows replaced by Certified Windows & Siding in the Keenesburg area and bring a whole new look to your home.
Get your windows replaced by Certified Windows & Siding in the Keenesburg area and bring a whole new look to your home.
Porch Pro Headshot Zen Windows CO
Window Contractors
Serves Longmont, Colorado
Get your windows replaced with the top-rated window replacement services at Zen Windows CO in Hudson, CO.
Get your windows replaced with the top-rated window replacement services at Zen Windows CO in Hudson, CO.
Porch Pro Headshot Ace All Colorado Exteriors Inc
Window Contractors
Serves Longmont, Colorado
Get your broken windows repaired in a timely manner with some help from the experts at Ace All Colorado Exteriors in Red Cliff, CO.
Get your broken windows repaired in a timely manner with some help from the experts at Ace All Colorado Exteriors in Red Cliff, CO.
Porch Pro Headshot EnerPro Home
Window Contractors
Serves Longmont, Colorado
We are an exclusive window and door replacement, leading the industry with using the best installation methods and only using quality product that offers an extensive warranty to back the product!
We are an exclusive window and door replacement, leading the industry with using the best installation methods and only using quality product that offers an extensive warranty to back the product!
Porch Pro Headshot Jp mile high construction llc
Window Contractors
Serves Longmont, Colorado
Cracked or broken windows are never fun. Replace yours with some help from the professionals at Jp mile high construction in Black Hawk, CO.
Cracked or broken windows are never fun. Replace yours with some help from the professionals at Jp mile high construction in Black Hawk, CO.
Porch Pro Headshot Cessa Construction llc
Window Contractors
Serves Longmont, Colorado
Are your energy bills getting high? It might be due to a bad window. To find out for sure, contact Cessa Construction in Brick Center and book an appointment.
Are your energy bills getting high? It might be due to a bad window. To find out for sure, contact Cessa Construction in Brick Center and book an appointment.
Porch Pro Headshot Colorado Coating and Sealant waterproofing
Window Contractors
Serves Longmont, Colorado
I am a waterproofer. I do caulking, coatings and wetsills. Also have work in concrete.
I am a waterproofer. I do caulking, coatings and wetsills. Also have work in concrete.

Latest projects near Longmont

Recent projects booked on Porch
Longmont 80501
Windows
Start Date
Within a month
Type of window project
Window well has rust and needs repair. A couple spots have rusted through so might need some filler. Nothing horrible, but trying to be proactive before it gets worse. Clean, rebuild, passivate, protect the galvanized steel. Would be preferable if you have pervious experience with such repairs.
Longmont 80504
Windows
Start Date
I'm flexible
Type of window project
We have a window well that has some rust. We need someone who can replace it.