Sep 8, 2026
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HVAC Contractor
Allegiance Heating and Cooling
VerifiedEstablished · 25 yrs
5.0(32 reviews)•Residential•Serving Mokena, IL
EPANATENCI
Local heating and air conditioning expert offering HVAC services in Mokena, IL and surrounding areas.
Allegiance Heating and Cooling is an HVAC contractor based in Mokena, IL. Services listed include HVAC repair, HVAC maintenance, HVAC installation and indoor air quality solutions. 25 years in business and emergency service available.
25
Years in Business
Yes
Emergency Service
Available
Financing Available
Mokena, IL
Service Area
Services Offered
HVAC repair
HVAC maintenance
HVAC installation
indoor air quality solutionsHVAC maintenance plansductless HVAC systems
furnace servicesheat pump servicescentral AC servicesCustomer Sentiment Summary
Strengths
- Conduct on site is the headline: 20 of 32 reviewers describe the crew as professional, courteous and respectful of their home.
- Diagnosis and workmanship carry the reviews — 15 of 32 reviewers say the technician found the real fault and fixed it properly the first time.
- 8 reviewers describe the technicians as personable and pleasant to deal with.
- Technicians turn up inside the booked window, something 8 reviewers went out of their way to note.
Areas to Watch
- No complaint recurs across the 32 reviews analysed, which is consistent with the 5.0-star average — but a clean record is not the same as a long one.
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FAQ
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Allegiance Heating and Cooling lists HVAC repair, HVAC maintenance, HVAC installation, indoor air quality solutions, HVAC maintenance plans and furnace services. Contact them to confirm they handle your specific job.
Allegiance Heating and Cooling is based in Mokena, IL.
Yes, Allegiance Heating and Cooling lists emergency service. Call them directly for urgent heating or cooling repairs.
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