Danboise Mechanical Inc.


About Us

It all started back in 1925, when Alex Joseph Danboise opened the doors to A. J. Danboise Son . . . a plumbing and hardware store.

Three generations later, Danboise Mechanical is a full service mechanical contractor focused on providing the highest quality plumbing, heating, ventilation, air conditioning, and electrical services for industrial and commercial customers throughout Michigan, Indiana, and Ohio.

At Danboise Mechanical we have assembled a team of professional, highly qualified technicians and support staff that share and support our mission: To do every job right, the first time.

You’ll notice the Danboise difference immediately. All calls are personally answered 24 hours a day, 7 days a week . . . you’ll never get an answering service or voicemail. Our technicians are highly skilled professionals who take pride in their area of expertise and that pride shows in the quality of their work. All company representatives receive ongoing education, training, individual and team development, allowing us to exceed each customer’s expectations and be the leaders in our industry.

When you need the very best in commercial plumbing, heating, ventilation, air conditioning, and electrical services . . . Danboise Mechanical will be there.

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