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Greencat isn’t just your average blow-and-go insulation contractor. We’re a whole-home performance expert that helps California homeowners reduce their electricity, gas, and water consumption while making their homes healthier, more comfortable, and less expensive to heat and cool. Our technicians are certified professionals who understand the science behind home performance and know how to get real results for our customers. 

But we don’t just want to get the job done right—we want you to enjoy working with us, every step of the way. That’s why we take the time to talk to our customers, listen to their concerns, and find solutions to the specific problems they’re dealing with. We treat every home we work in as if it were our own, and we’re always looking for ways to better serve our customers, whether we’re upgrading their insulation and air sealing, installing a new HVAC system, or making plumbing and electrical improvements. 

You don’t have to take our word for it, though! We encourage you to take a look at what real Greencat customers are saying about their experiences with our team and find out how we’ve helped families throughout California save energy, lower their heating and cooling costs, and improve their indoor air quality.

Ready to see what Greencat can do for your home? It all starts with an energy assessment. Schedule yours today, by calling 323-208-9071 or get in touch with us here


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.

Thank you so much. Service that was provided was done excellent. Very happy and satisfied.

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!

P.S. Had good manners. That's always nice.

I thank you for your service. Your guys did a great job!

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.

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! You are very lucky to have such wonderful people working for you, knoweldgable, fast and so efficient. Thank you!

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.

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.

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!

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!

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.

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!

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

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

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.

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. We are a hard working family and this is a blessing from God I was home to answer the door. 

Thank you so much.

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.