Allegiance Heating & Air

HVAC contractor
4.9(717 reviews)
7201 US-150, Greenville, IN 47124
Allegiance Heating & Air

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About Allegiance Heating & Air

Allegiance Heating & Air has earned a 4.9-star average across 716 verified reviews, establishing themselves as the most trusted HVAC name in Greenville and surrounding southern Indiana communities. Founded with a commitment to residential comfort solutions, the company holds proper licensing and operates with extended weekday hours that accommodate busy schedules, serving homeowners who need reliable heating and cooling support without the headache of narrow appointment windows.

What distinguishes Allegiance Heating & Air from neighboring contractors is their methodical approach to service visits. Technicians arrive prepared, having reviewed the homeowner's service history before entering the property, which allows them to diagnose root causes efficiently rather than cycling through guesswork. The team handles both routine maintenance tune-ups and complex system replacements, including air conditioner installations paired with furnace diagnostics to ensure integrated performance after any major equipment change.

Customer stories reveal why this contractor earns consistent five-star ratings. When James King's heating failed on a frigid winter day, Allegiance offered a same-day appointment and even accommodated an earlier arrival request after a cancellation. Gilbert, the technician who serviced Pam Ross's home, remembered installing her original system years earlier and walked her through each maintenance checkpoint while explaining what to monitor between professional visits. Laura Keinsley's air conditioner replacement required coordinated problem-solving with Jacob Ray managing the project timeline while ensuring the furnace and blower assembly operated correctly post-installation.

What Customers Say

All five-star reviewers praise the technicians' preparation and communication skills, with Gilbert, Jacob Ray, and the install team named repeatedly for going beyond standard service calls. Multiple customers note same-day emergency availability during extreme weather, and every review mentions on-time arrivals despite the company's broad service area.

4.9 · 717 reviews
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Working Hours

Sunday8 AM–5:30 PM
Monday8 AM–11 PM
Tuesday8 AM–11 PM
Wednesday8 AM–11 PM
ThursdayToday8 AM–11 PM
Friday8 AM–11 PM
Saturday8 AM–5:30 PM

Services & Details

From the business

Small business

Service options

Onsite services

Accessibility

Wheelchair accessible restroomWheelchair accessible seating

Offerings

Installation serviceRepair services

Amenities

Gender-neutral restroom

Parking

Free street parking

Frequently Asked Questions