Commercial HVAC  ·  Since 1977

Troy, MI  ·  Mon–Fri 8–5  ·  Sat 7:30–12

Questions? Tap to call (248) 669-4338

About Denny's

Family owned. Handshake honest. Since 1977.

Denny's has served Metro Detroit for decades and built a reputation for fair dealing and competence on some of the region's largest mechanical jobs.

Our story

A handshake is as important as a written proposal.

Denny Mando founded the company in 1977. Today Dean Mando leads it, and the values have not changed: honesty, integrity and going the extra mile for every client.

We design, fabricate, install, start up and maintain commercial heating, cooling, hydronic and refrigeration systems from our Troy, Michigan base. Denny's carries the 2B state boiler certification and runs its own sheet metal shop.

Denny's technician installing refrigerant piping beside a commercial condensing unit against a brick wall

The crew

The people who answer the phone and run the job.

Founder

Denny Mando

The creator of Denny's and one of the hardest-working people the company has known.

CEO

Dean Mando

Took over from Denny and has built the company into what it is today. Tough, compassionate and focused on getting it done.

Lead Installer

Kelley Huggins

Deep HVAC and cross-trade knowledge. By the end of a job, the other trades look to Kelley for answers.

Lead Service Technician

Greg Schultz

Relentless work ethic, and for many years has put in more hours than anyone else at Denny's.

Let's talk about your project.

Questions, a new build or a service call? Tell us what you need.