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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon321
    Verified window services reviews

Verified Reviews for Window Service pros in Longmont, CO

*The Angi rating for Window Service companies in Longmont, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

*The HomeAdvisor rating for Window Service companies in Longmont, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

Last update on May 20, 2026

Top-Rated Window pros in Longmont - Updated Nov 2026

Avatar for Centennial Window Films
Centennial Window Films
4.8(
214
)
Window Tinting - Apply or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Centennial Window Films did a great job, highly recommend!!"
deco-stained glass
deco - w/ logo
commercial-interior
Little Debbies Dream ( Aurora ) silver 15 int/ ext
dtc office with deco-white matte

+19

Response time10 hrs
31 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Empire Glass Company
Empire Glass Company
4.9(
129
)
New Windows - 6 +Window Glass - Install or ReplaceNew Windows - 3-5+6 more

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"They were able to find clips to replace my old window clips. And the price was worth having them install."
In glass pet door
Frameless Rain Glass
Frameless Custom
Frameless Custom
Frameless Custom

+20

Response time1 day
Response rate97%
41 neighbors recently requested a quote
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Avatar for Let There Be Light
Let There Be Light
4.8(
129
)
Window Cleaning

Serving Longmont, CO and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"The windows are the cleanest they have ever been. Found our new window washing service!"
Response time5 hrs
32 neighbors recently requested a quote
Recommended by97%of homeowners
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Sun King Solar Control Solutions, LLC
4.8(
63
)
Window Tinting - Apply or Replace

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Credit card accepted

"Both Jerry and Cassandra were professional, friendly and efficient. My oversized picture window looks great and my room already feels cooler and easier on the eyes. Next day install, fair pricing and excellent service - a winning combination. I highly recommend."
Certifications
Commercial 1
Commercial 2
Commercial 3
Residential

+15

Response time1 day
22 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Jammin Films, LLC
Jammin Films, LLC
5.0(
56
)
Window Tinting - Apply or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I hired Ben to install security window film on all my windows. Ben was very professional and performed the work in a timely manner. His customer service is top notch. Ben kept me informed on his timing until he arrived and did an outstanding job.. I would recommend Ben/Jammin Films for all your window film needs."
Response time5 hrs
Response rate89%
10 neighbors recently requested a quote
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Avatar for JM Window Cleaning
JM Window Cleaning
4.9(
64
)
Door or Window Screens - Install or RepairWindow Cleaning

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Exterior windows were cleaned ... excellent job."
I house in Parker
I house in Parker
I house in Parker
I house in Parker
I house in Parker

+68

Response time4 hrs
Response rate99%
10 neighbors recently requested a quote
Request Quote
Tom Baumann Enterprises dba Baumann Windows
4.5(
19
)
Egress Window - Install

Serving Longmont, CO and surrounding areas

Approved

In business since 1994

Free estimates

Customers say: Quality work

"Tom responded quickly and gave me an estimate on installing two small windows on each side of my fireplace. He said it would take a month for the order and that's exactly what it was. My schedule didn't allow him to come out during the week so he came on a Saturday morning to install windows. He did a great job, cleaned up inside and out and the windows look great. I may consider installing an egress window and I would definitely use Tom's company."
Response time5 hrs
Response rate87%
1 neighbors recently requested a quote
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Avatar for Windows Gutters Etc., LLC
Windows Gutters Etc., LLC
4.6(
198
)
Window Cleaning

Serving Longmont, CO and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Ray the owner was on time, worked fast and did a great job. Our house will sell better because of our sparkling windows. He was friendly and even washed the two little windows on our shed for no charge that were not included in the bid.Our bid also included cleaning out our window wells and cleaning those windows. He did an excellent job. His prices are low. He is a veteran and hires veterans in his business. I would definitely recommend this company for windows and gutter cleaning."
Response time1 day
2 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Colorado Egress
Colorado Egress
4.6(
123
)
Egress Window - Install

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Customers say: Terrific value

"The team was great to work with. The window and window well turned out really nice. I will definitely recommend Drew and his team."
Interior trim - typical
Interior trim - typical
Interior trim - typical
Optional European Tiltturn Window
optional In-swing single hung window2

+10

Response time1 day
Response rate86%
1 neighbors recently requested a quote
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Avatar for 20/20 Windows & Solar Cleaning Inc.
20/20 Windows & Solar Cleaning Inc.
5.0(
17
)
Window CleaningDoor or Window Screens - Install or Repair

Serving Longmont, CO and surrounding areas

Approved

In business since 1999

Free estimates

Small jobs welcome

"They were prompt, professional and did a great job. My windows sparkle"
Response time6 hrs
Response rate100%
5 neighbors recently requested a quote
Request Quote
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Windows FAQs, answered by experts

Look for stickers at the top or inside of the frame, like in the tracks when the window is open. Some brands also stamp their name onto the frame itself or place it between the panes of glass, although this is less common. If you can’t find the info on the window itself, consider asking your neighbors or HOA.

It’s time to replace your windows if most or many are in poor shape. In that case, new fiberglass windows will increase the energy efficiency of your home and add to its overall visual appeal, inside and out. Replacing your windows also can allow you to find a style that better suits the character of your home.

Constant fixes can be expensive over time, and by replacing your windows, you can be at ease knowing you now have windows that function properly and make your home more energy-efficient.

Yes, window manufacturers and installers can mull together three windows—or even more—for a more impressive appearance that lets maximum natural light into your home. However, you may have constraints regarding the total size of the wall opening. Your installer can help you determine what size wall opening is safe based on the structural load. In most cases, you can install additional supports to span the opening, like a steel I-beam, but this drastically increases the installation cost.

The most likely cause of smearing or streaking after cleaning your windows is residue left on the glass from the cleaner you’re using. Consider diluting the solution and cleaning them again, or use old newspaper to dry the windows after cleaning, as this will soak up any residual material. Additionally, aim to clean your windows on a cool, cloudy day, as cleaners will dry more quickly on the glass if it’s hot and sunny, promoting streaking.

If your windows weren’t manufactured with a retaining clip to receive muntins and hold them in place, you should contact a window company near you to add them for you. A professional will bond the muntins directly to the glass to hold them in place, and they’ll make sure the edges line up nicely with your window frames. If your window does have retaining clips to hold muntins in place, you can just pop the muntins into the clips.

The Longmont, CO homeowners’ guide to window services

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

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