Danboise Mechanical Inc.


Company History

Founded in 1925, by Alex Joseph Danboise. At that time, A.J. Danboise Son was a plumbing and hardware store built on the idea that to be successful, you need to provide customers with the very best products and service that is second to none.

Today, four generations later, the company is run by Alex’s Granddaughter, Carol Danboise Gatewood, and his Great-Granddaughter Amy Gatewood Gendjar. Danboise Mechanical is certified by the WBENC and Supplier Clearinghouse as a woman owned business.

Over the years, the business has grown and expanded to meet the growing needs of its customers In 2004, The commercial division of then A.J. Danboise Son split off from the company and formed it’s own separate entity which is the Danboise Mechanical we know today.

Danboise Mechanical, Inc., is a full service mechanical contractor providing plumbing, drain line, heating, ventilation, air conditioning and electrical services to commercial and industrial companies of all sizes.

The Danboise Mechanical team is highlighted by a management group that averages over 30 years of experience, not just in their area of expertise, but with Danboise Mechanical alone!

DMI as a whole has 75 highly skilled professionals, a technologically advanced facility, a fleet of service vehicles, and a digital dispatch system, which provides us with the capability to provide service and installation across the entire state of Michigan, Indiana, & Ohio. Best of all . . . you’ll never get an answering service or voicemail. All calls are personally answered 24 hours a day, 7 days week.

Danboise Mechanical . . . anytime you need us . . . we’re just a phone call away. 248-471-2230.

What Our Customers Are Saying...

"Danboise Mechanical is the Mechanical Contractor that sets the standards by which all other Mechanical Contractors are, or should be, judged. Danboise hires the best Skilled Trades, Managers & Service Technicians and then provides advanced Safety, Skill Sets and Motivational Training to insure the Best Service, Quality and Safety for their Customers. I have been a satisfied Danboise Customer for over 40 years and will continue to employ the Danboise Team on all future Projects."

– Jim Gandol, Gandol Inc.

“My consultancy has a simple, but important, purpose:  to transform individuals and organizations through the power of professional ideals.  Danboise Mechanical has not only embraced that aspiration but operationally has made tremendous strides in making professionalism their organization’s ‘north arrow’.   It has made an already great company that much better.  Whether you’re a long-standing or prospective client I trust you’ll see (and most importantly feel) the difference that a truly professional relationship can bring.”  

– Bill Wiersma Author, The Power of Professionalism

"Whether we need HVAC, Plumbing, Scheduled Maintenance, or after-hours Emergency Service here at Viazanko Construction Services, we make Danboise Mechanical our first call! Their technicians are professional, courteous, and very knowledgeable in their respective fields! Forget calling that other company. Call Danboise first to save you from having to call them later!"

– Robert Viazanko, Viazanko Construction Services L.L.C.

"I've had the good fortune to have worked with Danboise Mechanical Inc.(DMI) for more than 25 years as a Corporate Real Estate Manager for AT&T. Through those years DMI has grown to be an outstanding mechanical contractor offering a wide variety of high quality services and fostered a culture within their team focused on exceeding client expectations. DMI is a strong mechanical contractor providing leading edge technology, for repairs, renovation, new construction, and mission critical projects in a work safe environment. DMI has been a solid partner, executing hundreds of high quality projects while striving to exceed client expectations. It's been my pleasure to work with the DMI team."

– Bernard Fountain, Corp. Real Estate AT&T ret.

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Professional Affiliations






National Electrical Contractors Association