A/c Repair Today

Tired of high utility bills?
Tired of a dusty house?
Some rooms too hot? Some too cold?


We serve Corona, CA & Riverside, CA Areas ~Our $79.95 service fee is waived with repairs~

Home of the HVAC Nerd

Sean Gagen, the original HVAC Nerd.

What is an HVAC Nerd?

Check out our HVAC Nerd page!

 Green Comfort completes 

full background checks on all employees. 

We are fully licensed, bonded, and insured. CA License# 936591

What's an HVAC Nerd?

Custom HVAC Options

Omar, our HVAC Nerd in Training

Your home is unique, so it deserves a unique, high efficiency design from our HVAC Nerd.  We don’t want to sell you what you don’t need, so we like to meet with you to give a free estimate. 

YES! We offer financing!

Book Free Estimate

We deliver 5 Star Service!

Micheal, our Green Comfort HVAC Nerd. NATE, NCI, EPA Certified

Check out what satisfied customers have to say about Green Comfort! But, don‘t just take our word for it—

Search for us on Google, Yelp!, Facebook, Thumbtack, and more.

Find out more

Check out our reviews for ac repair & heater repair!

About Green Comfort

"We engineer comfortable A/C efficiency, and fix the rest!"

Green Comfort is a heating, ventilation, and air conditioning (HVAC) company that was founded in 2012 by Sean Gagen. Sean has been certified by the National Comfort Institute (NCI), North American Trade Excellence (NATE), Building Performance Institute (BPI), as well as trained by the Department of Defense and National Air Balance Council (NABC).  After receiving all of his training, Sean desired to provide customers in the Riverside and Corona, California areas with high quality, scientifically supported, energy efficient, money saving, and customer focused heater repairs, ac repairs,  ac system installations and ac system replacements. 

Now, we call our technicians “HVAC Nerds” because they have also pursued multiple avenues of training and certification in the HVAC field. They are well prepared to complete your ac repair, your heater repair, maintain and repair your air conditioner, and install your new system to the highest standards.  With that knowledge, we desire to serve our community by listening to their needs and providing design based indoor air solutions to our customer’s indoor air quality, comfort, and efficiency needs. 

Michael is ready to come complete your ac repair, heater repair, air conditioner repair.

Michael is ready to come complete your ac repair, heater repair, air conditioner repair.

Contact Us for air conditioner repair today!

24 Hour Emergency Service Available

For emergency service, please text us.  We look forward to fixing your Heater or Air Conditioner in Riverside, Corona, and surrounding areas in Southern California.


CA  License#  936591

Green Comfort

Riverside, California 92508, United States

(951) 581-5869


Monday - Friday: 8am - 5pm

Saturday: 9am - 2pm


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