About Us

Who We Are


Welcome to COR Maintenance. We are a full service company providing facility maintenance/repairs, janitorial, construction and ancillary maintenance services to customers in a range of different industries and property types.  As a licensed contractor with over ten years experience and countless properties in a wide range of industries, COR is the go-to company for property owners looking for dependable, professional and cost-effective services. Highly skilled in multiple facets of property services, we strive to make facility maintenance and property upkeep as straightforward as possible. COR Maintenance carefully engineers maintenance programs that are structured to each client's specific needs. Clients quickly discover that the design of COR's maintenance programs and maintenance systems reflect a deep comprehension and appreciation of a client's assets on property. Protecting those assets is our top concern. This focus allows COR to maintain the highest level of quality for each new project.  Best practice methodologies employed and mastered over a broad client base has allowed for COR to hone its programs and reduce cost to our clients. Our work is performed in-house by COR trained employees. All COR employees carry the necessary certifications and are experts in their respective fields. Managers cross trained in multiple fields address all issues related to maintenance and construction of a property, often times outside of contracted scope of work. In this way, our clients view us as a value-added operational partner, rather than a maintenance provider, and that's how we view ourselves, a partner in our client's success.

Where We Are


COR Maintenance provides property maintenance throughout Mid-Western United States to owners of office buildings, retail complexes, industrial buildings, Child Care centers/schools, educational  facilities and much more. By choosing COR Maintenance, you'll have at your disposal a company devoted to providing you excellent customer service and great property maintenance.  Our history includes providing services in the following cities: Phoenix, Scottsdale, Chandler, Mesa, Gilbert,Care Free, Queen Creek (Arizona). Detroit, Harper Woods, Roseville, Waterford, Commerce, White Lake, Highland, Hartland, Lansing, Flint (Michigan)

Join Our COR Family


COR Maintenance provides more than just property maintenance. Under the leadership of the Frost family and their highly experienced team, COR offers clients General Contracting Services, General Construction,  Facility Maintenance,  Janitorial Service, Property Preservation/Foreclosure Services, Pressure Washing, On-Demand Repairs, Disaster Response and 24-Hour Repair Service. COR Maintenance prides itself on treating all our clients and customers as family. COR is a company that can handle your facility big or small and treat everyone with a family owned business feel.  

We invite you to become part of our COR Family. 


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COR Maintenance

376 Beach Farm Circle, Highland, Michigan 48356, United States

(248) 568-9948


Monday - Friday: 9am - 5pm

Saturday: 9am - 5pm

Sunday: Closed (Emergencies Only)