Allegiance Heating & Air

4.9
677 reviews
Allegiance Heating & Air service van

About

HVAC ContractorAir Quality ConsultantHeating ContractorAir Conditioning Contractor
Serving the Kentuckiana community since 2005, Allegiance Heating & Air provides trusted, family-owned comfort solutions. As a dedicated HVAC contractor, their team of licensed, highly qualified journeymen specializes in expert heating and cooling services, from furnace and AC repair to complete installations. Allegiance Heating & Air is committed to delivering quality and peace of mind with every service, ensuring your home remains a sanctuary of comfort. Don’t wait for a breakdown — schedule your HVAC service today.

Details

  • Onsite servicesAvailable
  • Free street parkingAvailable
  • Wheelchair accessible restroomAvailable
  • Wheelchair accessible seatingAvailable

Location

Allegiance Heating & Air
7201 US-150, Greenville, IN
47124, United States

Hours

Reviews

4.9
677 reviews
5 stars
652
4 stars
8
3 stars
1
2 stars
5
1 star
11

What are people saying?

AI-generated from recent customer reviews

Professionalism

Technicians are consistently described as knowledgeable, polite, and professional, providing clear explanations of their work.

Customer Service

Many customers praised the quick response times and the helpfulness of the staff, indicating a strong commitment to customer satisfaction.

Quality of Work

Overall, the quality of service and installation is highly rated, with many customers expressing satisfaction with the results and the thoroughness of the technicians.

Pricing Concerns

Some customers expressed concerns about pricing, mentioning that charges were higher than competitors and feeling pressured into maintenance contracts.

Mixed Experiences

While many reviews are positive, there are a few negative experiences regarding specific service issues and dissatisfaction with problem resolution.
  • MD
    Michael Davis
    Jan 1, 2026
    5.0
    Great service, most knowledgeable and capable HVAC business in Kentuckiana!! Pete Flemming and Bryan the owner, are HVAC encyclopedias. They have the highest integrity of any HVAC business I have ever used. Allegiance has put numerous units in for me over the last 17 years. I will continue to use and trust them.
  • SM
    Susan McDaniel
    Jan 1, 2026
    5.0
    Fast response from Allegiance when our heat was out on New Year’s day! Service technician was friendly and efficient. He took the time to explain the problem, tell us about the temporary fix and the plan for permanent repair. We were impressed!
  • PE
    Peggy Ellett
    Dec 30, 2025
    5.0
    Jacob Ray was my technician. He was very knowledgeable and explained in detail what he was doing, what he checked, and what his findings were. I am very pleased with the service and will continue to use Allegiance for my HVAC needs. Very reasonable on pricing too! Thank you
  • MT
    Meredith Terry
    Dec 22, 2025
    5.0
    Excellent service & Gilbert is an excellent technician. All technicians have always been very honest, polite, professional, & punctual. I would highly recommend Allegiance Heating & Air Company.
  • KL
    Kevin Love
    Dec 19, 2025
    5.0
    We were very pleased with the work done installing our new furnace. They were on time and cleaned up after themselves. Well done.

Frequently Asked Questions About Allegiance Heating & Air

Why does my indoor unit have ice on it?

The presence of ice on your indoor HVAC unit can be attributed to several factors. During the summer months, insufficient refrigerant levels may lead to the indoor unit freezing. This issue can manifest initially indoors but can extend to the outdoor unit if left unaddressed. To prevent this, regular annual maintenance is crucial. Our HVAC technicians will meticulously examine refrigerant levels to ensure they meet manufacturer specifications. In winter, a frozen indoor unit may result from a lack of refrigerant, hindering the system's ability to defrost. Professional maintenance becomes especially important during this season to avoid such complications. Control issues can also contribute to freezing during winter. When the HVAC system fails to defrost, the outdoor unit may freeze. Additionally, a dirty air filter can impede airflow, causing the indoor unit to freeze. These concerns can be mitigated through routine HVAC maintenance, where our technicians assess the functionality of system components and provide guidance on timely filter replacements.

Why does my unit give off a strange smell?

One common reason for an odd smell is the accumulation of dust on the heat exchanger. After prolonged periods of inactivity, dust settles on the heat exchanger. When the unit is turned on again, this accumulated dust is burned off, resulting in a distinct aroma. While not necessarily harmful, it can be bothersome. Routine HVAC maintenance is recommended to address this issue, allowing our technicians to inspect and clean the heat exchanger during regular service appointments. However, a more serious concern is a cracked heat exchanger, which can emit a suspicious smell. Some individuals may be more sensitive to this odor than others. A cracked heat exchanger poses a significant risk as it can release exhaust fumes into the home, presenting a potential danger. If you suspect a cracked heat exchanger, it is imperative to seek professional assistance promptly. Regular HVAC maintenance becomes crucial in detecting and addressing such issues before they escalate. Another source of unusual odors could be faulty electrical equipment within the HVAC system. When motors, transformers, or other electrical components fail, it may lead to the generation of smoke and an unpleasant smell. By adhering to a routine maintenance schedule, our HVAC technicians can identify potential issues with electrical components early on, providing timely warnings and making necessary repairs. In summary, to ensure the safety and efficiency of your HVAC system, routine maintenance is essential. If you suspect that you may be in danger, contact your local fire department.