Your Trusted HVAC Experts in the Inland Empire
Reliable Heating, Cooling & Indoor Air Quality Solutions Backed by 40+ Years of Local Expertise
Certified Technicians
NATE-certified and trained to handle every HVAC system with precision and professionalism.
40+ Years of Excellence
Proudly serving Inland Empire homeowners with proven, dependable HVAC solutions.
Customer-First Service
We prioritize honesty, transparency, and long-term comfort for every client.
From routine maintenance to full system replacements, we deliver HVAC solutions designed to keep your home comfortable no matter the season. Experience the difference of working with a team who values your comfort, time, and budget.
Mr. Steve Allison
Company Founder
Allison Air Conditioning: Inland Empire’s Most Trusted HVAC Contractors
Your home deserves dependable comfort, and at Allison Air Conditioning, we’ve been delivering just that for over three decades. Our team of certified professionals specializes in providing quality heating, cooling, and indoor air quality services that keep your system running efficiently year-round.
Whether it’s repairing an aging system, installing a high-efficiency unit, or improving your home’s air quality, we approach every job with unmatched expertise and genuine care for your comfort and safety.
- Certified HVAC Technicians trained to service all major brands
- Customer-Focused Service with honest recommendations and no pressure
- High-Efficiency Solutions that reduce energy costs and improve comfort
- Proven Local Experience trusted by Inland Empire homeowners for over 40+ years
Our Services
Quality HVAC Solutions for Reliable Year-Round Comfort
At Allison Air Conditioning, we provide expert heating, cooling, and indoor air quality services designed to keep your home comfortable in every season. Our certified technicians deliver fast response times, honest recommendations, and long-lasting solutions you can rely on. Explore our core service offerings below.
Air Conditioning
Reliable AC repair, installation, and maintenance to keep your home cool and comfortable all summer long.
Heating Services
Expert furnace and heating system services to ensure safe, efficient warmth through every cold season.
Indoor Air Quality
Advanced air quality solutions that reduce pollutants and improve the health and comfort of your home.
Keep Warm Without Worry—Your AC Works Hard Even in Winter
Beat the Heat with Reliable Cooling All Summer Long
Frequently Asked Questions
Homeowners often have questions about HVAC maintenance, repairs, and system performance, and we’re here to help make things simple. Our experts have answered some of the most common questions we receive to help you better understand your heating, cooling, and indoor air quality needs. If you still need assistance, our team is just a phone call away.
Regular HVAC tune-ups are typically recommended twice per year—once for heating and once for cooling. This helps improve performance, reduce breakdowns, and extend the lifespan of your system. Routine maintenance also keeps your energy bills lower and ensures your home stays comfortable year-round.
Common warning signs include unusual noises, weak airflow, inconsistent temperatures, or unexpected increases in your utility bill. You may also notice odd smells or longer-than-normal run times. If any of these occur, it’s best to have a technician inspect the system promptly to avoid costly damage.
If your system is over 10–15 years old, frequently breaks down, or struggles to maintain comfort, replacement may be more cost-effective than continued repairs. A newer system can offer better efficiency, reliability, and long-term savings. Our technicians can assess your unit and recommend the best solution based on your home’s needs.
Simple steps like replacing air filters regularly, cleaning air vents, and controlling humidity can make a noticeable difference. For more advanced solutions, products like air purifiers, UV lights, and upgraded filtration systems can help remove pollutants and allergens. A professional IAQ assessment can help determine what’s best for your home.
Most residential HVAC installations can be completed within a single day, depending on system complexity and home layout. Our team works efficiently to ensure minimal disruption while delivering high-quality results. We always test your new system thoroughly so you can enjoy immediate comfort.
Advanced HVAC Products for Better Comfort & Efficiency
We offer industry-leading HVAC products designed to enhance comfort, improve indoor air quality, and maximize system efficiency. Whether you want more control over your home’s temperature, cleaner air, or a top-tier system upgrade, our premium product offerings deliver long-lasting performance. Explore our most popular options below.
Zoning Systems
Take control of your home’s comfort with zoning systems that allow different rooms to maintain their ideal temperature. Reduce energy waste while improving comfort in every area of your home.
Smart Thermostats
Upgrade to a smart thermostat for precise control, better efficiency, and remote access from your smartphone. Perfect for maximizing comfort while lowering your energy costs.
iWave® Air Purifier
Breathe cleaner, healthier air with the iWave® air purifier, which reduces allergens, bacteria, viruses, and odors throughout your home. A powerful solution for family health and indoor comfort.
Carrier HVAC Products
Experience industry-leading performance with Carrier heating and cooling systems known for their reliability, energy efficiency, and advanced technology. A perfect choice for long-term home comfort.
What Our HVAC Customers Are Saying
We take pride in delivering exceptional heating and cooling services backed by decades of experience and genuine care for our customers. Hear directly from homeowners who trust Allison Air Conditioning for reliable service, expert craftsmanship, and unmatched professionalism. Your comfort is our priority—and our customers agree.
HVAC Installation & Repair Gallery
See the quality of our work firsthand. Our gallery showcases real HVAC installations, repairs, and system upgrades completed throughout the Inland Empire. From air conditioning units to heating systems and indoor air quality equipment, our certified technicians deliver craftsmanship you can trust.
HVAC Services Available Across the Inland Empire
Our NATE-certified technicians proudly serve homeowners and businesses across the Inland Empire, delivering fast, reliable, and professional HVAC services wherever you need us. We provide complete heating, cooling, and indoor air quality solutions designed to keep your home comfortable year-round.
- Anaheim Hills
- Chino
- Chino Hills
- Corona
- Fontana
- Norco
- Ontario
- Riverside
- Yorba Linda
No matter where you’re located in the Inland Empire, our team is ready to deliver expert service backed by 40+ years of experience. Whether you’re dealing with an emergency repair, looking to upgrade your system, or want to improve energy efficiency, we’re here to help.
Latest News & HVAC Articles
Stay informed with helpful HVAC articles, seasonal maintenance tips, product recommendations, and expert insights from our experienced technicians. Whether you’re looking to reduce energy costs or extend your system’s lifespan, our resources are here to guide you.
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Ready to Experience Better Home Comfort?
Whether you need a fast repair, a professional installation, or simply want to improve your indoor air quality, our certified HVAC experts are here to help. We provide honest recommendations, reliable service, and long-lasting solutions designed to keep your home comfortable all year long. Contact us today and let our team take care of the rest.