Our Team Of
HVAC Nerds
Book Online - Get The Pros!
Riverside and
the Surrounding
Southern California
Don’t Delay
Get the HVAC
Nerds on the Way!
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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.

We Serve Corona, CA & Riverside, CA Areas

~our $89.95 Service Fee Is Waived With Repairs~

home hvac nerd

Home of the 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.

custom hvac options

Custom HVAC Options

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!

5star service

We deliver 5 Star Service!

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.

Our Services


Our Services


What Our Clients Say

Art S.

Replacement and replacement of condenser and coil due to R-22 refrigerant gas. Great owner and better team effort by all who had their hand in finishing my repairs. Traps on ...

Glynn S.

I have a rental property in Perris and have called out Green Comfort 3 separate times: 1st in 2019 to install a new system, and two additional times (2020 and ...

Nathan B.

It’s really easy to feel overwhelmed when you have an issue with your HVAC system. Sean and the team make the whole process easy – from scheduling to communication, and ...

Bianca V.

10/10 I would recommend green comfort again. Sean and his team were amazing. He was quick to respond to any questions I had and very understanding of financial needs. He ...

Rancho A.

We would like to thank the Staff of Green Comfort for providing repairs for our Air Conditioning unit. Michael was professional, timely, hard-working, and you can tell that he puts ...

Marie A.

I highly recommend Green Comfort to anyone who needs assistance with their heating and/or air conditioning. Sean and his team are friendly, prompt, and honest. They kept me informed throughout ...
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