Over 100 Years of Excellence in Plumbing, Heating, & Construction

Plumbing • Heating • Mechanical • Construction

Family-owned for four generations · 100+ years  |  Licensed & Insured  |  Commercial & Industrial  |  Serving Macomb County & Metro Detroit

Hassig Companies is a 4th-generation, family-owned contractor with over 100 years of proven expertise. Rooted deeply in our community, we’ve earned a reputation as trusted specialists in Commercial & Industrial Plumbing—while also providing full-service Mechanical and Construction solutions across multiple industries.

No job is too big or too small. Our team excels in everything from large-scale system installations and capital projects to day-to-day service work, repairs, and facility support. Whether it’s retrofitting existing systems, maintaining complex mechanical infrastructure, or managing complete construction projects, we bring the same level of precision, reliability, and commitment to every task.

What sets us apart is the legacy behind our work. Four generations of innovation, craftsmanship, and hands-on leadership guide everything we do. We build long-term partnerships by delivering exceptional workmanship, staying ahead of industry standards, and providing dependable, real-world solutions. When you need expert plumbing, mechanical services, or full-scope construction support, Hassig Companies is your trusted partner for complete project delivery.