Your insulation is affecting your energy bills —

Make sure it’s for the better!


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When you are looking for a home performance contractor near you to help you solve your indoor drafts, poor indoor air quality, and overall home comfort issues, going local matters. Greencat takes pride in being the trusted insulation and ventilation contractor throughout California — because we live here, too.

We aren’t your average HVAC contractor, or blow-and-go insulation installer — we are a team of building science experts that are looking to make the homes of our friends and neighbors more comfortable through better, and smarter, insulation and ventilation. And real Californians just like you are talking about Greencat! You can take a look at what our customers are saying about their experience with Greencat in our collection of testimonials.

If you think you could benefit from making your home a healthier, more efficient place to live, schedule an energy assessment for your home in the following cities:

Cathedral City
Chino Hills
City of Industry
Diamond Bar
Forest Falls
Grand Terrace
Jurupa Valley
Lake Elsinore
La Verne
Loma Linda
March Air Reserve Base
Mira Loma
Moreno Valley
Mountain Center
North Palm Springs
Palm Desert
Palm Springs
Palomar Mountain
Pauma Valley
Rancho Cucamonga
Rancho Mirage
Salton City
San Bernardino
San Dimas
San Jacinto
Sun City
Valley Center
West Covina

Targeted Home Comfort & Energy Management

The process here at Greencat is to locate the areas where your home is in need of improvement, and match you with the home performance upgrades that will make the biggest impact. Getting it right the first time is our top priority — which is why we recommend each project starts with an energy assessment. That way, our licensed and insured Jedi Masters of residential energy efficiency can be sure that you are spending your money on the home performance upgrades you need, instead of wasting your time and resources. 

Ready to take a “look under the hood” of your home’s performance? Schedule an energy assessment for your Southern California home today. Call Greencat at 323-208-9071 or get in touch here.


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.