"OSA has cleaned our call center most completely despite the number of employees we have in the area and the creative messes they can make. Our work space is always ready for us each morning and their work is appreciated."
Regional Savings and Loan
"OSA has been our janitorial provider for over five years. On certain occasions we have had an urgent need of immediate service, such as an inspection or customer visit, and OSA has been there when we needed them."
"We have used OSA to clean our office for the past four years. They have been most reliable and their service has exceeded our expectations. We recommend them to anyone."
"Our charter school takes quite a beating from our teenage students. OSA has been able to clean our facility daily with a high degree of quality. Their annual stripping and waxing of our floors leaves our property looking brand new."
Tempe Accelerated High School
"OSA has cleaned our retail property for the last ten plus years and has done an excellent job. Also, our floors take a real beating from our customers and OSA has been able to strip and wax the floor and make the showroom shine. We really appreciate the job they do in our store."
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Serving Arizona, Nevada, and Southern California.