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TRUSTED BY LONGMONT, CO HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon276
    Verified window cleaning services reviews

Verified Reviews for Window Cleaning pros in Longmont, CO

*The Angi rating for Window Cleaning 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 Cleaning needs.

*The HomeAdvisor rating for Window Cleaning 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 Cleaning needs.

Last update on May 20, 2026

Find Window cleaners in Longmont

Avatar for JHJ Window Cleaning, LLC
JHJ Window Cleaning, LLC
4.9(
14
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Affordable pricing and extremely good work. Our windows sparkle as if they were brand new, maybe even better. I will definitely hire Hazen and JHJ Window Cleaning again."
Crazy Mountain
Crazy Mountain Brewery
Garage Door Window
Garage Door Window
Crazy Mountain Brewery

+6

Response time5 hrs
Recommended by92%of homeowners
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Avatar for Abluent Window Cleaning, LLC
Abluent Window Cleaning, LLC
4.3(
34
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: True professional

"Tyler did a fantastic job on all of our windows! They look so much better than they ever have before! We would recommend him to anyone who would like crystal clear windows!"
Tyler on a ladder. Abluent, Ltd. window cleaning
Tyler cleaning windows for Abluent, Ltd.
Inside Mountain Home Window Cleaning, Great View!
Commercial Store Front Window Cleaning
Reflections on a cleaned window

+13

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Spyglass Window Clean LLC
Spyglass Window Clean LLC
5.0(
5
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Joe was timely & efficient. My windows & screens looked beautiful when he was done. He was very meticulous & even cleaned the window tracks."
Front Entry
Side View
Side with patio and Garage
Response time5 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Shine of Boulder
Shine of Boulder
4.8(
17
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Matt and his hard working team cleaned all our windows, screens, tracks, etc. In pre for a wedding we hosted at our home. They did an outstanding job, we're very conscientious and efficient. They're customized water pH system was interesting and efficient, allowed for streakless drying. Thier cost was reasonable for all the work it took to complete our home (~ 50 panes). Matt and his team were super nice. Several of our neighbors are planning to hire them. I highly recommend Shine for your window cleaning services."
Interior Window Cleaning
House Before
House Before
House Before
House After

+1

Response time1 day
Response rate95%
45 neighbors recently requested a quote
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Avatar for Summit View Window Cleaning
Summit View Window Cleaning
5.0(
7
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"I really appreciated the time they took to give me a fair estimate for my house windows. They got here on time for my scheduled appointment and got to work! I was really surprised at how dirty my windows were and amazed at how clean they look now. I am very happy with the quality and friendly service Phil and Seth provided. Can not wait for them to come back for my monthly appointments!"
Break Area Glass
Conference Glass
Break Area
Office Glass
Office Glass

+38

Response time9 hrs
1 neighbors recently requested a quote
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Showing 1-10 of 241
Window Cleaning questions, answered by experts

Getting a streak-free shine after cleaning your windows requires both the right cleaning solutions—which can either include warm water and dish soap or warm water and rubbing alcohol—and the right tools—namely, a squeegee and a microfiber cloth. To make your streak-free glass cleaner, combine one gallon of warm water with a few drops of dish soap, and mix. Apply with a sprayer or sponge, and then dry with a squeegee, microfiber cloth, or old black-and-white newspaper pages.

Clean high-traffic areas such as kitchen surfaces, bathroom surfaces, and bedding once per week. Deep clean other areas every three months to a year. How you use a space can help you figure out how often it should be cleaned, with areas where eating, bathing, and food prep occur getting the most frequent attention.

Hard water stains are caused by hard water. Hard water contains a lot of minerals, like calcium and magnesium. When water on your glass surfaces dries out, the minerals stay behind and stick to the glass. This results in a residue that looks like white cloudy or streaky spots. Call a pro to install a water softener to banish hard water problems.

Yes, in most cases, you can add a few drops of Dawn to a spray bottle full of vinegar to remove hard water stains. This solution can be used on your dishes, or you can use it in your shower, bathtub, or sink to get rid of hard minerals. Simply combine the ingredients, shake them up, then spray the solution onto limescale-ridden surfaces. Wait around an hour and then scrub the surface down.

Because the built-in blinds are encased in glass, they should not get dusty. You might, however, find that your door’s window panes get dirty. If that is the case and you wish to clean your patio door’s glass, first remove any loose debris with a small vacuum or brush. Next, fill a bucket with warm water and some mild dish soap. Dip a clean rag into the bucket and wet the glass on your patio door. Dry the glass with a clean microfiber cloth.

The Longmont, CO homeowners’ guide to window cleaning services

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

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