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TRUSTED BY LONGMONT, CO HOMEOWNERS

  • 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

Find Window pros in Longmont

Avatar for Centennial Window Films
Centennial Window Films
4.8(
213
)
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
48 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Empire Glass Company
Empire Glass Company
4.9(
129
)
New Windows - 6 +New Windows - 3-5Window Glass - Install or Replace+6 more

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"cott even showed me how to remove and replace the window incase I have problems with other windows in the house knowing that we would have problems hiring to have other windows repaired on our fixed income ver_ nice man. thank you Scott. it very nice to have windows I can open and close again and knowledge of how to fix further issues buy myself if beeded. Thankyou so much for your honesty and help. There was a window that I thought needed repair and he save me money by showing me that one of the windows was working ok. Very honest and snd helpful business"
In glass pet door
Frameless Rain Glass
Frameless Custom
Frameless Custom
Frameless Custom

+20

Response time1 day
Response rate97%
23 neighbors recently requested a quote
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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

"Excellent job on the window tinting project. The quality of the work is top- notch, clean precise and professionally done. The tint not only enhanced the look of the home but has reduced the glare and heat, just as I had hoped. Cassandra was respectful of our space and left everything spotless after the job was done. I’d highly recommend to anyone looking to upgrade their home Windows. Outstanding work with a fun personality!!"
Certifications
Commercial 1
Commercial 2
Commercial 3
Residential

+15

Response time1 day
41 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

"Ben was courteous, personable, very professional and knows his trade., I was impressed with his applications of window tinting my four huge windows here in a timely and CLEAN manner."
Response time5 hrs
Response rate89%
14 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 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

"Great job. They came when they said they would. They did a nice job on the windows. They were efficient and came in at the agreed upon amount. This was a good savings over others who estimated the job."
Response time5 hrs
58 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for JM Window Cleaning
JM Window Cleaning
4.9(
61
)
Window CleaningDoor or Window Screens - Install or Repair

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%
18 neighbors recently requested a quote
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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
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Windows questions, answered by experts

When your double-hung window upper sash keeps falling down, it means you could be letting out warm air in the winter or cool air from the AC in the summer. That means your HVAC system works harder to warm or cool the house, costing you extra on electric bills.

If the lower sash continues to fall down, it means when you’ve popped open the window for fresh air, it could slam shut. In addition to being inconvenient, this could be dangerous if you have small kids, children, or pets that like to hang out by the window.

Casement window types differ from standard windows in that they have a hinge on the side or the top of the window so that it can open inwards or outwards. If your casement windows open upward, they usually have a crank to operate them. Casement windows with side hinges typically operate like a door, opening and closing without a crank.

Yes, it is generally better and more cost-effective to replace all your windows at once. Contractors often lower the per-window labor and material costs for larger projects, saving you money in the long run. Installers may also quote a flat rate for overhead, making multiple small jobs more expensive than one large one.

Replacing all windows simultaneously offers other advantages:

  • Aesthetics and Home Value: It creates a cohesive style and uniform energy efficiency, which is appealing to potential home buyers.

  • Efficiency: The entire replacement process, which can take several weeks, is completed in a single, more efficient project.

However, replacing all windows requires a significant upfront investment. While you can replace just a few windows, experts recommend replacing at least five to eight at a time to avoid high overhead costs. An exception is when a single window is damaged; in that case, it can be replaced on its own.

Generally speaking, you should clean your windows and any associated fixtures and treatments every six months. Otherwise, clean them as needed to keep everything running smoothly. If you live in a part of the country with especially hard water, you may have to clean them three or four times per year, and the same goes for areas where insects, pollen, dirt, and other debris can soil your windows and potentially cause issues with the moving parts.

Most properly installed and maintained windows last between 15 and 20 years. Fiberglass windows last much longer than your average window. Since they don’t warp from temperature changes, rust, or rot, you might be able to hold onto fiberglass windows for up to 40 years. On the other hand, poorly maintained wood windows may only last for a few years.

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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