Business Details
27 Years
experience
Emergency
services
Trusted HVAC Services in Mokena, IL
Founded in 1999, Allegiance Heating & Cooling is a family-owned and operated HVAC contractor serving Mokena, Illinois, and surrounding areas. Our 25+ years of combined experience in the HVAC industry allow us to deliver expert heating, ventilation, and air conditioning solutions for residential and commercial properties. We specialize in system installations, repairs, and maintenance while maintaining a client-focused approach that prioritizes punctuality, respect for property, and long-term reliability.Our NATE-certified technicians work with industry-leading brands like Trane and utilize advanced technologies such as ductless systems and indoor air quality solutions. We stand behind our work with a lifetime guarantee on parts and repairs, ensuring lasting comfort and value for our clients.
Services
Heating Repair
AC Installation
Air Duct Cleaning
Heat Pump Services
Indoor Air Quality
Ductless HVAC
HVAC Maintenance
Emergency Repairs
Geothermal Systems
Whole Home Humidifiers
Details
- Year established: 1999
Highlights and features
- We offer 25+ years of combined HVAC expertise in Mokena and surrounding areas
- Our lifetime guarantee covers all parts and repairs indefinitely
- We maintain competitive pricing without compromising quality standards
- Our technicians arrive promptly and complete work efficiently
- We treat every property with professional care and respect
Associations and certifications
- Trane
What people say
Same-day service
Professional technicians
Lifetime guarantee
Competitive pricing
Timely installations
Services
HVAC Installation
We provide expert HVAC system installations for residential and commercial properties. Our NATE-certified technicians work with leading brands like Trane to deliver energy-efficient heating and cooling solutions. Our installations include proper system sizing, ductwork optimization, and integration with smart thermostats for maximum efficiency.
AC Repair
Our emergency AC repair services address cooling system failures promptly. Technicians diagnose issues with compressors, refrigerant levels, and electrical components to restore comfort quickly. We service all makes and models while maintaining factory warranties through proper repair procedures.
Indoor Air Quality
We offer comprehensive indoor air quality testing and improvement solutions. Services include air purification systems, HEPA filtration, UV light installation, and whole-home humidification. Our solutions address allergens, mold spores, and volatile organic compounds to create healthier living environments.
Heat Pump Services
We specialize in heat pump installation, maintenance, and repair for residential properties. Our technicians optimize system performance through refrigerant charge adjustments, coil cleaning, and defrost cycle calibration. We service both ducted and ductless heat pump systems with same-day repair availability.
Ductless HVAC
Our ductless HVAC solutions provide zoned temperature control without extensive ductwork. We install and service mini-split systems for home additions, garages, and commercial spaces. These energy-efficient systems offer independent temperature control for individual rooms or zones.
Questions
What HVAC services do you offer in Mokena?
We provide heating and cooling system installation, repair, and maintenance, including emergency services, indoor air quality solutions, and ductless HVAC systems.
Are your technicians certified?
Yes, our team includes NATE-certified technicians trained in all major HVAC systems and manufacturer-specific requirements.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency repair services for heating and cooling system failures with no additional after-hours charges.
What financing options are available?
We offer financing options through approved credit providers for HVAC system replacements and major repairs with competitive interest rates.
What areas do you serve?
We serve Mokena, Orland Park, Frankfort, Joliet, New Lenox, and surrounding communities in Illinois.
Do you provide free estimates?
Yes, we offer free in-home estimates for all HVAC system installations and major repair projects.
