Commercial HVAC.
Built on the Same Standard.
From apartment complexes to ground-up commercial builds — the same honest work,
the same trusted team.
Commercial HVAC.
We’ve Done the Big Jobs. We Treat Them All the Same.
Reliable. Accountable. Ready for projects of any size.
We started residential and grew into commercial because our reputation demanded it. Today we work with contractors, developers, and property managers on everything from apartment complexes and large-scale residential developments to new commercial construction. The scope changes. The standard doesn’t. Honest assessments, transparent pricing, and a team that shows up — every time.
Request ServiceA Parter You Can Trust
We’re not here for a quick contract. We’re here for the long haul.
We bring the same values to commercial work that we bring to a family’s home — honesty, accountability, and follow-through. Because whether it’s a tenant or a homeowner, someone’s comfort is on the line.
Here is what you can expect when you choose us:
Honest Recommendations
If a repair gets you through the season, that’s what we’ll recommend. We’re not in the business of selling you something you don’t need.
Responsive Communication
You’ll always know where we are and what’s happening. No radio silence, no guessing. Clear communication from the first call to the final sign-off.
Long-Term Relationship Focus
We want to be your go-to HVAC partner for every property — now and five years from now. That only happens if we earn it.
Expert Craftsmanship
Our technicians are CMC-C licensed, TVA Quality Contractor Network certified, and trained to handle complex commercial systems. The credentials matter — but so does the character behind them.
Comprehensive
Services for Every Need
We provide a full range of commercial HVAC services designed to keep your facility running smoothly. From routine check-ups to major overhauls, our team has the expertise to handle projects of all sizes.
The McDonald Standard
Same name. Same standard. Every job.
McDonald Heating and Air carries Eric’s name — and that means something. Every technician on a commercial job goes through the same hiring process as everyone else on this team: values first, character first, honesty first, HVAC skills fourth. When you work with us, you’re working with people we’d trust in our own home. We’re serious about response times too — within the hour during business hours, next business day if after hours.
See How Fast We Respond
Ready for a Breath of Fresh Air?
We've built our reputation one call at a time. Over 450 five-star Google reviews — earned, not bought. East Tennessee trusts us because we've earned it.