At Mark of Excellence Heating & Air Conditioning, we're committed to exceeding expectations with every service call. We understand how frustrating HVAC issues can be - and how long you might wait when dealing with bigger companies. That's why we offer fast, reliable 24/7 emergency repair service, often getting to you within 24 hours. Whether you need AC installation, air conditioning repair, heating system replacement, or routine maintenance, our certified technicians handle it all - efficiently and professionally. From furnaces to rooftop systems, we're experienced with a wide range of HVAC equipment and ready for jobs big or small. Trust us to restore your comfort quickly with expert care and dependable service, any time - day or night.

Treating our residential and commercial customers right begins with fast service for installation, maintenance and repair services. We know that repairs just can't wait when temperatures are in the triple digits. You might end up waiting for days when you call a bigger company, but Mark of Excellence Heating & Air Conditioning can get to you within 24 hours. We offer fast, reliable 24/7 emergency repair service for most heating and cooling brands.

At Mark of Excellence Heating & Air Conditioning, we're also dedicated to providing our customers with the quality they expect and the comfort they deserve. That means giving you access to the best brands for your home.

As a Lennox® partner, we proudly install some of the most innovative and energy-efficient home comfort equipment available. A new system can keep your home more comfortable and your energy costs low, even as temperatures soar. Don't forget to ask us about special discounts for military, first responders and seniors.

Besides heating and cooling, we also offer a wide range of indoor air quality products and services. Improving the air inside your home can help you breathe easier in Arizona's dry and dusty climate.