Apex Window Cleaning provided pressure washing and window cleaning services to our 7 story 100 year old building in downtown Knoxville in February 2021. Valerie, Rex, Brian, and their crew were awesome – they cared about our building like they owned and lived there! Apex has been a partner of our HOA for window cleaning for almost a decade and we added pressure washing this year – the before and after photos speak for themselves. I highly recommend Apex Window Cleaning.

Highly recommend Apex!

Valerie, Rex, and crew are the best in town!  Not only did they complete the job in a day and a half that took another company two weeks, their customer service and responsiveness is unparalleled.  Highly, highly recommend.  -Ashlee R., The Social Knoxville

Professionalism, punctuality, quality, and responsiveness

The Apex team did an awesome job making Regas Square look great this week.  They are polite, professional, and most importantly, safe.  Thank you – Tom Wolfe

Polite and professional

Best window cleaners I have ever worked with.  I have enjoyed working with them for almost 17 years now.  -Eric McKinney, Public Building Authority

Responsible and efficient

I would like to take a moment to thank you and your crew for the recent work you did for us here in Sevier County. We are just so happy with the quality and attention to detail that Apex showed us. I sent pictures to my supervisor, and he was so very pleased! He wanted me to make sure and let you know that we will be using your company for all of our windowing cleaning needs.  Amy C – City of Gatlinburg 

So very pleased!City of Gatlinburg 

Excellent performance from the team at Apex. They arrived for an estimate within days of my initial request, and performed the job on our five story Historic renovation property within a week. We received estimates from others, none offering the thorough hand cleaning our windows required or the fantastic customer service.  Beth Turner

Choose Apex for superior results!

Apex Window Service is a step ahead of the competition.  Professional, diligent, and personable, they do great work at a reasonable price.  Their people are first class and leave nothing undone.  To say that I was impressed is an understatement.  They will have my business from now on.  Do yourself a favor and select these folks for the best window cleaning service you will ever have.

Jon Gustin


I love this group of guys and gals. They’re easy to work with and will always get the job done in a professional and timely manner. I’d recommend to anyone!! Benjamin Miller

Great work and customer service!

We in the Public Building Authority of Knox County and the City of Knoxville have worked alongside this organization for all of the 10 years mentioned in their review and we can stand by the APEX claim of job(s) well done with safety always being job one. The years of service have been accident free with a level of customer service second to none. Anything whether it is the window cleaning of interior/exterior glass or even the pressure cleaning of one of our LEED certified facilities has always been with complete customer satisfaction above and beyond our expectations. This level of customer satisfaction is a rarity this day and time. We appreciate the entire APEX team and their hard work. We stand behind them in their continued success and safety on each and every job they take on. Highly recommended! Darrell Shepard

Safety First

They did a terrific job on the Mary Boyce Temple House we recently finished restoring on Henley Street. it took well over seven years to put that mess of a house back together so the windows were horribly dirty. I came home to sparkling windows, washed with great respect to our home. I highly recommend Apex. Brian Pittman

Great Residential Work

My husband and I are new to city life, having just moved into our first downtown dwelling. Apex takes care of our beautiful windows in a professional and courteous manner, leaving them sparkling! Thank you Apex for keeping our view of this beautiful city crystal clear! Stephanie Smith

Great people, great job!

We brought Apex here to Columbia, SC to pressure wash and clean the windows of our 7 story property. Their performance surpassed our previous work and their customer service/hospitality was unmatched. We will continue to use Apex for all of our future work and will likely expand their services to our numerous properties. Very pleased!!!! Dwight Dooley

100% Recommend