Northeast Ohio's Trusted HVAC Experts
Northeast Ohio's Trusted HVAC Experts
Family-owned and operated, MD Denna Heating and Cooling has been keeping Ohio homes and businesses comfortable for years — with honest work, fair prices, and technicians who treat your home like their own.
Our Story
MD Denna Heating and Cooling was founded on a simple belief: every family deserves a reliable, honest HVAC contractor they can call without worry. What started as a one-truck operation has grown into a trusted name across Northeast Ohio, built entirely on word-of-mouth and repeat customers.
We've stayed small on purpose. That means every job gets our full attention, every technician is someone we'd trust in our own home, and every customer gets a straight answer — no upsells, no runaround, no surprises on the bill.
From a furnace that quits on the coldest night of the year to a new AC installation before summer hits, we show up on time, diagnose fast, and fix it right the first time.
Why Customers Choose Us
On-Time, Every Time
We respect your schedule. Our technicians arrive in the promised window and call ahead so you're never left waiting.
Upfront Pricing
You get a clear quote before any work begins. No hidden fees, no surprise charges when the invoice arrives.
Work Guaranteed
We stand behind every repair and installation. If something isn't right, we come back and make it right — no questions asked.
24/7 Emergency Line
HVAC emergencies don't keep business hours. Call us any time — nights, weekends, and holidays — and a real person picks up.
Licensed, Certified & Insured
Ohio HVAC License
Fully licensed by the State of Ohio to perform heating, cooling, and ventilation work on residential and light commercial properties.
EPA 608 Certified
Our technicians hold EPA Section 608 certification for safe handling and recovery of refrigerants on all AC and heat pump systems.
Fully Insured
We carry full general liability and workers' compensation insurance on every job — protecting your home and our team.
All Major Brands
Trained to service and install Carrier, Trane, Lennox, Rheem, Goodman, Bryant, and most other major HVAC brands.
Serving Northeast Ohio
We proudly serve homeowners and businesses across Northeast Ohio including Akron, Canton, Massillon, Wooster, Medina, Barberton, Green, and surrounding communities. Not sure if we cover your area? Give us a call — we'll let you know.
330-261-8401Ready to Work With Us?
Call today for a free estimate or to schedule service.