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Verified Reviews for Window Cleaning pros in Knoxville, PA

*The Angi rating for Window Cleaning companies in Knoxville, PA 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 Knoxville, PA 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 November 22, 2025

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Reppert Property Maintenance (RPM)

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Reppert Property Maintenance (RPM)

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Property Maintenance -Lawn care -lawn mowing -weed eating -mulching -landscaping -Excavating -drain tile/French drain -ditch Maintenance -Material delivery (haul up to 4 ton at a time ) -stone -top soil -mulch Owned and Operated Feel free to ask any questions

Property Maintenance -Lawn care -lawn mowing -weed eating -mulching -landscaping -Excavating -drain tile/French drain -ditch Maintenance -Material delivery (haul up to 4 ton at a time ) -stone -top soil -mulch Owned and Operated Feel free to ask any questions

Adair's window cleaning

5.00(
2
)

Adair's window cleaning

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I'm the owner and employee. I do not subcontract anything out. We take cash and check. Check website for coupon discounts.

"Excellent! Great job, all Mildew stains, Moss stains removed. Home was white again..."

Michael Z on October 2018

I'm the owner and employee. I do not subcontract anything out. We take cash and check. Check website for coupon discounts.

"Excellent! Great job, all Mildew stains, Moss stains removed. Home was white again..."

Michael Z on October 2018

Commercial Service Pros

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Commercial Service Pros

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23 years of experience

We provide preventive maintenance and repair service. Our expertise is the result of years of industry experience, and our complete maintenance programs are specifically designed to keep all your heating, ventilation, air conditioning and refrigeration systems operating at peak performance. Which is the best way to minimize costly repairs. 24/7 Emergency Services. Our dependable emergency service is just one call away any time of the day or night, every day of the year. From fielding your call, to dispatching our qualified personnel, to monitoring the service for fairness and accuracy Commercial Service Pros manages the process so you don’t have to.

We provide preventive maintenance and repair service. Our expertise is the result of years of industry experience, and our complete maintenance programs are specifically designed to keep all your heating, ventilation, air conditioning and refrigeration systems operating at peak performance. Which is the best way to minimize costly repairs. 24/7 Emergency Services. Our dependable emergency service is just one call away any time of the day or night, every day of the year. From fielding your call, to dispatching our qualified personnel, to monitoring the service for fairness and accuracy Commercial Service Pros manages the process so you don’t have to.

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Window Cleaning questions, answered by experts

Whether you tip before or after a carpet cleaning depends on when you’re available. If you’re home when they finish up, you can give them their tip after. However, if you need to leave before they’re done or if you won’t be home at all, you can prepare the tip beforehand and leave it for them in an envelope.

Window washing usually refers to cleaning dirt and other debris off of the exterior of your windows, while window cleaning is a much more involved process that addresses the outside and inside of the glass, as well as the interior components. Window washing is more to improve the aesthetic of your windows, while window cleaning can improve performance, reduce the risk of damage over time, and even improve your home’s energy efficiency.

Smoke stains, grease buildup, mold, and water spots are common reasons for hiring professional cleaning services.

Clean with non-abrasive cleaners and a soft cloth, avoiding ammonia-based products that can degrade the film.

A standard professional cleaning of an entire apartment typically takes 2 to 3 hours. However, the timing varies depending on the size of the apartment, the number of people and pets that live in it, and how frequently it is cleaned. A deep cleaning typically takes 4 to 6 hours.

The Knoxville, PA 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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