Business Details
27 Years
experience
Emergency
services
Expert HVAC Services in Mokena, IL
Allegiance Heating & Cooling, founded in 1999, is a family-owned and operated HVAC contractor serving Mokena, Illinois, and surrounding areas. With over 25 years of combined experience, our team specializes in heating, air conditioning, and indoor air quality solutions for residential and commercial clients. We prioritize punctual service, competitive pricing, and a lifetime guarantee on parts and repairs. Our NATE-certified technicians deliver expert installations, emergency repairs, and maintenance for systems including furnaces, heat pumps, ductless mini-splits, and geothermal systems.As a Trane factory-authorized dealer, we combine industry-leading equipment with personalized service to ensure lasting client satisfaction. Our commitment to treating every property with respect, offering financing options, and maintaining transparency has earned us a reputation as a trusted local HVAC partner.
Services
Heating Repair
AC Installation
Air Duct Cleaning
Heat Pump Services
Indoor Air Quality
Ductless HVAC
Geothermal Systems
HVAC Maintenance
Emergency Repairs
Whole Home Humidifiers
Details
- Year established: 1999
Highlights and features
- We offer 24/7 emergency HVAC services for urgent needs.
- Our technicians are NATE-certified with over 25 years of combined experience.
- We provide a lifetime guarantee on all parts and repairs.
- Competitive pricing with financing options available for qualified customers.
- Family-owned business prioritizing punctual, respectful service since 1999.
Associations and certifications
- Trane Dealer
What people say
Same-day service
Professional technicians
Fair pricing
Energy savings
Lifetime guarantee
Services
Heating Repair
Our heating repair services address furnace and boiler issues with prompt, reliable solutions. Technicians diagnose problems efficiently, using advanced tools to restore warmth during cold seasons. We service all makes and models, including high-end systems, ensuring optimal performance and energy efficiency for residential and commercial properties.
AC Installation
We specialize in AC installation for central systems, ductless mini-splits, and geothermal units. Our team conducts detailed load calculations to recommend the right system size and efficiency level. As a Trane dealer, we combine quality equipment with expert installation for lasting cooling performance and energy savings.
Air Duct Cleaning
Our air duct cleaning services improve indoor air quality by removing contaminants like dust, allergens, and mold. Using industrial-grade equipment, we clean ductwork thoroughly, enhancing HVAC efficiency and reducing respiratory irritants. This service is ideal for allergy sufferers or homes with recent renovations.
Heat Pump Services
We provide comprehensive heat pump services, including installation, repair, and maintenance. Our technicians optimize system performance for both heating and cooling cycles, addressing issues like refrigerant leaks or thermostat malfunctions. Upgrades to modern, energy-efficient models help reduce utility costs year-round.
Indoor Air Quality
Our indoor air quality solutions include air purifiers, UV light systems, and whole-home humidifiers. We conduct air testing to identify pollutants, then recommend filtration and ventilation improvements. These services reduce allergens, control humidity, and create healthier living environments for homes and businesses.
Questions
What HVAC services does Allegiance Heating & Cooling offer?
We provide heating and cooling system installation, repair, and maintenance, including ductless systems, heat pumps, indoor air quality solutions, and emergency services.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency repair services for urgent heating and cooling system failures.
Are financing options available?
Yes, we offer financing options for qualified customers to help manage HVAC system upgrades or repairs.
What areas do you serve?
We serve Mokena, Orland Park, Frankfort, Joliet, New Lenox, and surrounding areas in Illinois.
What makes your technicians qualified?
Our team includes NATE-certified technicians with over 25 years of combined experience in HVAC systems.
Do you provide warranties on services?
Yes, we offer a lifetime guarantee on all parts and repairs for as long as you own your home.
