Partners Real Estate Preferred Vendor:  ENVIRONMENTAL INSPECTIONS


Enviro-Assist, Ltd of South Lyon, Michigan provides:  Call us at 248.486.1753

Septic System Inspections

Well Inspections

Septic System Engineering

Septic System Troubleshooting & Consultation

Drinking Water Sampling

Water Supply Consultation

Educational Seminars

Sewer District Planning/Septic Surveys

Enviro-Assist Ltd is a growing company established in 2005 to provide top quality septic system consulting services.  Randy Gregory, founder, has made noteworthy contributions to septic system research and environmental health: Now serving Brighton, Howell, Hartland, Highland, Milford, New Hudson, South Lyon, Northville, Plymouth, Ann Arbor, Saline, Milan, Ypsilanti, Whittaker, Manchester, Dexter, Chelsea, Gregory, Pinckney, Hamburg, Whitmore Lake, Willis, Scio, Salem.

Developed the World’s Largest Database for Septic System Research

Image: Line Chart


Received National Recognition in 1988 for Pioneering Work in Septic System Evaluations


Developed Inspector Training and Certification Programs Adopted Throughout Michigan

Failure rates declined with changes
in engineering construction practices
in the 1960s & 1970s

Image: Bar Chart


Assisted Health Departments Nationwide Develop Well and Septic Evaluation Programs


Works Published and Nationally Presented by the American Society of Agricultural and Biological Engineers


Works Published and Nationally Presented by the National Environmental Health Association


Inspections on Demand

4426 Lily Drive
Howell, MI


[email protected]


Protech began life in 1988 as a division of an Ann Arbor remodeling company. The radon business took off, and company’s management decided to spin it off as an independent corporation. Since then, the company has flourished and broadened its services well beyond radon.

Over the years we have helped in well over 20,000 real estate transactions ranging from single family homes to multi-multi-property IRS seizures. We’ve worked throughout Michigan, Ohio, Indiana, Illinois, and Missouri. As in any successful business, our people are the key.


Ann Arbor Office: 734-761-3595 or 734-MR-RADON
Toll-Free: 888-677-2366 or 888-MR-RADON

WIN Home Inspections


About Us

Home buyers, home sellers, and homeowners choose WIN Home Inspection time and again for our professional, personalized service and thorough home inspection reporting. Every inspection we perform exceeds national industry standards, and all of our home inspectors receive extensive, ongoing education to stay at the forefront of industry issues and trends.

Contact Us      WIN Request Service

2232 S. Main St.
Suite 366
Ann Arbor, MI 48103
call: (734) 389-8833
email: [email protected]