Business Details
27 Years
experience
Emergency
services
Your Trusted HVAC Partner in Mokena, IL
Allegiance Heating & Cooling, founded in 1999, is a family-owned and operated HVAC contractor serving Mokena, IL, and surrounding areas. With over 25 years of combined experience, we specialize in heating, air conditioning, and indoor air quality solutions for residential and commercial clients. As a certified Trane dealer and NATE-certified technician team, we guarantee lifetime workmanship, competitive pricing, and punctual service.Our principles prioritize respect for client property, transparent communication, and energy-efficient systems that enhance comfort and property value. Backed by a legacy of excellence, we deliver personalized HVAC solutions tailored to meet evolving customer needs.
Services
HVAC Repair
Heating Installation
AC Maintenance
Heat Pump Services
Ductless Systems
Water Filtration
Commercial HVAC
Details
- Year established: 1999
Highlights and features
- We offer 25+ years of combined HVAC expertise in Mokena.
- Our lifetime guarantee covers all parts and repairs.
- Competitive pricing without compromising quality or service.
- Punctual technicians respect your time and property.
- Certified Trane dealers with NATE-certified professionals.
Associations and certifications
- Trane Certified Dealer
- NATE Certified Technicians
What people say
Knowledgeable, responsive, professional
Fixed AC same day
Dependable, on time, friendly
Excellent workmanship, fair pricing
Hands down the best HVAC company
Services
HVAC Installation
We install energy-efficient heating, cooling, and air quality systems tailored to residential and commercial needs. Our certified technicians ensure precise Trane equipment installations for optimal performance. With lifetime guarantees on parts and repairs, we deliver durable solutions that enhance comfort and property value.
Heat Pump Services
Specializing in heat pump installation, repair, and maintenance, we offer eco-friendly systems that provide year-round comfort. Our experts handle all makes and models, including emergency repairs, with a focus on energy efficiency and long-term reliability for Illinois homeowners.
Ductless HVAC
We provide ductless mini-split solutions for homes without existing ductwork. Our services include expert guidance, installation, and maintenance of energy-efficient systems with zone control capabilities. Emergency support ensures uninterrupted comfort for Mokena residents.
Water Filtration
Partnering with HALO Water Systems, we install whole-home water filtration solutions that remove contaminants and improve appliance longevity. Our systems enhance water quality for drinking, bathing, and household use while reducing health risks from impurities.
Commercial HVAC
We deliver tailored HVAC solutions for businesses, including installation, repair, and maintenance of rooftop and split systems. Our 24/7 emergency services minimize downtime, while energy-efficient upgrades improve comfort and operational cost-effectiveness for commercial properties.
Questions
What HVAC services do you offer in Mokena?
We provide heating, cooling, heat pump, ductless system, water filtration, and commercial HVAC services with installation, repair, and maintenance options.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC repair services for urgent heating and cooling issues.
Are financing options available?
Yes, we offer flexible financing options subject to credit approval for HVAC system upgrades and installations.
What areas do you serve?
We serve Mokena, Orland Park, Frankfort, Joliet, New Lenox, and surrounding Illinois communities.
What certifications do your technicians hold?
Our team includes NATE-certified technicians and we are a certified Trane dealer for quality HVAC solutions.
Do you offer maintenance plans?
Yes, we provide comprehensive HVAC maintenance agreements to ensure system efficiency and longevity.
Reviews (4)
Mary Halpin
May 16, 2024
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I highly recommend Allegiance HVAC! Brian Cusack along with the Allegiance HVAC installation team were extremely professional, knowledgeable, helpfulI, and friendly. I appreciated the straightforwardness of the pricing and the clear and concise process of the installation process. The HVAC installation team were excellent and totally respectful of my home with regards to cleanliness and they thoroughly reviewed the operation of the new AC system.
James Kubiak
Apr 01, 2021
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Excellent and professional workmanship. Fair pricing, knowledgeable staff, and timely installation. I would highly recommend their service to anyone that needs HVAC work.
Tom Harascsak
Jul 09, 2020
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My central air went out in the middle of the night so I called Allegiance HVAC when they opened and they were able to come out that day. The serviceman was found the problem right away and fixed my AC. I should mention that it was 88 in my house by that time.
Denise Mataragas
Nov 19, 2019
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The service man was friendly and knowledgeable. He called and gave me a heads up that he was going to be a little late as he was working on another client. His work was efficient and fairly priced. I highly recommend.
