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TRUSTED BY HARVARD, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon52
    Verified window cleaning services reviews

Verified Reviews for Window Cleaning pros in Harvard, IL

*The Angi rating for Window Cleaning companies in Harvard, IL 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 Harvard, IL 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 June 14, 2026

Find Window cleaners in Harvard

Avatar for Nexlevel LLC
Nexlevel LLC
4.6(
91
)

Serving Harvard, IL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Michael arrived on time and provided me a estimate prior to the start of work. The work was completed in a timely manner. My windows really are sparkling clean. I had no idea how dirty they were before."
3 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Prime Time Window Cleaning, Inc.
Prime Time Window Cleaning, Inc.
3.9(
2,352
)

Serving Harvard, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I have also hired Prime Tme for gutter cleaning. Easy scheduling, though the window washer arrived nearly an hour earlier than expected."
Quality Work
Experienced Crews
Professional Friendly Technicians
Pressure washing the sidings
Commercial cleaning

+58

Response time7 hrs
413 neighbors recently requested a quote
Recommended by84%of homeowners
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KC Cleaning Crew
New to Angi

Serving Harvard, IL and surrounding areas

Approved

Offers commercial services

At KC Cleaning Crew, we specialize in post construction cleaning and general cleaning that gets your space ready for the spotlight — whether it's a grand opening, new office launch, or a freshly renovated property. We know the final step before opening your doors is making sure everything is spotless, safe, and presentation-ready. That’s where we come in.\n\nAs a proud local business, we’re more than just a cleaning crew — we’re part of the community. We’re committed to supporting other local businesses by providing reliable, detailed cleaning services that help you shine from day one.\n\nFrom dust to debris, we handle the mess so you can focus. We work with you to ensure all your cleaning needs are met with quality and in a timely manner. \n\nClean space and Clean start\n

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Window Cleaning questions, answered by experts

Luckily, glass block windows need minimal maintenance. Other than regular cleaning, the only maintenance involved in having a glass block window is inspecting for cracks every year and applying sealer to the mortar joints if the blocks are set in masonry mortar. Glass block windows hold up well against wind and moisture better than traditional windows and are not prone to rot.

Most jobs take 2-8 hours, depending on the number of windows, height, and difficulty of access.

It depends on the company and the services it provides. If a cleaning company is just washing the outside of the windows, the pro may only wash the glass panes. But if they’re washing the inside and outside, they most likely bundle cleaning the sill and frame into the cost. It’s best to ask before you schedule a service to see if the company will charge additional fees.

In most cases, you should get your windows cleaned one to two times annually, although you might want to complete this task more often if you live in an area with heavy pollen or heavy rain or snowfall that soils your windows. It’s also a good idea to hire a professional window cleaning service if you’re listing your property, as sparkling windows will make a big difference in terms of curb appeal and, potentially, your home’s value.

Professional cleaning offers deeper sanitization, reaches grout inaccessible by home tools, and restores tiles without causing damage. Technicians have expertise and equipment that ensures long-lasting cleanliness and improved aesthetics.

The Harvard, IL 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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