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Need Heating & Cooling Upgrades?

Start With an Energy Audit!



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HVAC systems wear out over time, and older units don’t have the high-performance capabilities that newer systems do. Because of this, you’ll likely need to update your HVAC system at one point or another. And when that time comes, Greencat will be here to help. 

Expert HVAC Installation, Maintenance & Repairs 

Greencat is a highly experienced contractor that’s licensed and certified to provide just about any heating, cooling, or ventilation service you could need for your Los Angeles, Orange County, Western Riverside County, or Western San Bernardino County home. So, whether you want to install a mini split, replace your ductwork, or overhaul your entire HVAC system with a new, high-efficiency unit, you can count on our skilled team to get the job done right. We offer expert installation, maintenance, and repairs for all kinds of HVAC systems, including mini splits.   

The Greencat Difference: Whole-Home Improvements

Most HVAC contractors only focus on the symptoms a homeowner is experiencing and never look below the surface to see what’s causing them. That’s where Greencat is different. We think about the home as a system and use our extensive building science knowledge to figure out what’s causing your heating and cooling problems so that we can resolve them once and for all.  


Many heating and cooling issues are caused by a problem with the HVAC system itself, but there are other places where issues can arise. Air leaks, inadequate insulation, and poor ventilation are common problems that can make it impossible for your home to maintain a comfortable and consistent indoor temperature. With whole-home solutions that address these underlying problems, like air sealing, insulation upgrades, and whole-house fans, you can not only solve your immediate problem but also: 


  • Improve home comfort 

  • Decrease energy consumption

  • Lessen your impact on the environment

  • Reduce your energy costs 

  • Increase indoor air quality

  • Extend your HVAC system’s lifespan 

Personalized Solutions for Greater Comfort, Health & Energy Savings

Every home is different, and there isn’t a one-size-fits-all solution when it comes to heating and cooling. That’s why we like to start our projects with an energy audit. This comprehensive assessment of your home’s overall performance will show us where you’re losing the most energy and what improvements will have the greatest impact on your overall energy efficiency, home comfort, and air quality. 


If a new HVAC system is the solution, we’ll take the time to size your system correctly so that it will perform optimally in your home. And, as a full-service contractor, we can go beyond HVAC upgrades and help you create the most efficient home possible with services like electrification and solar panel installation. To make the entire process as affordable as possible, we can help you qualify for local rebates and incentives that are designed to help California homeowners save money on energy-efficient home improvements. 

Are you struggling to keep your home comfortable? Greencat can find out what’s causing your heating and cooling problem and resolve it once and for all! Call 323-208-9071 or get in touch here to schedule a consultation. 

What Our Customers Are Saying About Greencat

  • Very hardworkers, professional and nice, did the work without any problem. Great customer service, neat. I would use their service again and would refer them to friends and family.

    - Temeka L.
  • Thank you so much. Service that was provided was done excellent. Very happy and satisfied.

    - Teresa P.
  • I was very happy to see and talk to the men who came to do the work on my attic. They were kind, respectful and quick. Answered all my questions and were efficiently working throughout the whole time. Very nice. I am so happy I had this done. Thank you!

    - Stephanie A.
  • I thank you for your service. Your guys did a great job!

    - Salvador C.
  • The service by Greencat is a great way to improve homes. The service received today by Victor and Jose was awesome. They were very pleasant, friendly and explained the process, and answered all our questions.

    - Rudy G.
  • Enrique and Edgardo arrived on time and were very very friendly, polite and respectful. They went right to work, did an amazing job and cleaned everything up and left it better than it was before!

    - Patricia G.
  • I love your company, Greencat. The workers are nice and hard working. They explained work in detail. They completed work nicely. They took care of my place. Thank you.

    - WooJoung K.
  • Greencat come to my home early and prepared to get the service done in a timely manner. They were professional, polite and did a great job prepping and cleaning up afterwards. I am thankful I decided to move forward with the services.

    - Marguerite H.
  • Greencat came to my home today and did a great job in my home. The techs were fast and professional. I'm excited for my home to be more cozy in the winter and fresher in the summer. Thank you!

    - Sagrario S.
  • The guys that came by today from Greencat were very professional, polite and fast. The work was clean and they answered any question I had. Thank you Greencat!

    - Erica S.
  • You guys did a wonderful job. Thank you guys for not leaving a mess. Also for being nice to us. Overall, I love you guys. Job is 10 out of 10 rating.

    - Jonathan C.
  • The techs that came in and did the installation did a really good job. Quick, clean, professional. It couldn't have been better. We'd recommend them to others!

    - Andres C.
  • Thank you for your service and professionalism. I appreciate the work you guys have done for us. Great service!

    - Alejandra B.
  • We are very pleased and thankful and also with your great staff in completing the job. Very nice, professional and respectful. 

    - Luis A.
  • The service was great. It was fast and easy. They arrived early and were kind. This service will allow our home to be cooler during the summer. It is great.

    - Leticia S.
  • Thank you so much! Our house runs super hot and cold in the winter. Your workers who came to gate were excellent. Within minutes the truck pulled up, both employees ready to do their job. Fast and efficient. Friendy and polite. Thank God for this program.

    - Jody L.
  • Greencat is a great company, the service they are giving us is perfect. The workers are very polite and out-going. They came and finished very fast. Just want want to thank them for taking their time to come out today. We really appreciate it.

    - Julio A.