Let me begin by saying that Ryan and his crew are extremely trustworthy and professional. I am an…read morearchitect and well-versed in air sealing, but I did not have personal experience with removing old fiberglass batt insulation and installing only two inches of closed-cell insulation. In our 1868 Victorian home, Ryan and his crew removed all of the old fiberglass insulation from remodels we'd done over the years and installed closed-cell insulation in the attic ceilings and floor. I'll admit that when I saw the large amounts of old insulation being removed, I seriously wondered if I had made the right decision. Rather than jumping to conclusions, I waited until I could compare our December 2024 PG&E gas bill with our December 2025 bill. Since we heat our home with a gas furnace, my focus was on gas usage rather than electricity. In December 2024, our house was cold--uncomfortably so. The furnace cycled on and off constantly throughout the day, and we experienced significant temperature swings. The old insulation simply could not hold heat. Fast forward to December 2025. While our gas usage in therms was similar, the outcome could not have been more different. Our home is now warm and comfortable. We keep the thermostat at about 72 degrees during the day, and at night we set it to 62--yet the temperature holds steady around 66 degrees all night. In other words, the heater doesn't even come on after we go to bed. The result is a dramatically more comfortable home with no increase in gas usage. I expected our December 2025 bill to be through the roof, but instead it remained essentially the same--with vastly better performance and comfort. I couldn't be happier with the results. I'm so glad I put my trust in Ryan. We finally have a warm home during the coldest month of the year, and going forward we will be using less therms per month.

Great great service the technician Jose Duarte was very professional and went above and beyond I…read morerecommend this company 100/100 there prices are unbelievable and so affordable and very professional company, affordable, and dependable will not use any other company, but this one

Loved my experience with Sabas, who came promptly after making a nearterm appointment to see if we…read moreneeded more insulation. Great guy and just who Ponzini would want to represent them. If I get work done it will be these folks who do it. Thanks much!

I was able to get an appointment for an inspection and assessment of my house Insulation within two…read moredays. To my surprise, no additional Insulation is needed and I just have to live with the fact that my house is about 6° warmer than it is outside throughout the warm months. I really appreciate Sabas coming out for the visit and assessment. Great company that I would have no qualms in using for Insulation needs.

I called for a quote for removing insulation and getting new put in. The owner responded pretty…read morequickly, a time was set to come measure. The son came to measure- he was very nice. He said his dad would email the quote. I texted the owner and gave my email. He responded with a thumbs up emoji. I didn't get anything that day or the next. So on the third day I texted again and said please text me when you send the quote as sometimes it goes to my junk mail and I didn't want to miss it. No response. A couple of days later I tried calling, left a message, no response. The following Monday still nothing so called again and still nothing. They just ghosted me. Very frustrating as I wasted a week waiting for this and could have had another company come out and do it.

This is an excellent family-owned local small business that provides outstanding service based on…read moreour recent experience. They removed existing blown-in insulation in our attic, replaced it with R-38 fiberglass, and installed R-19 fiberglass in our crawl space. The work was completed ahead of schedule and the family was a pleasure to have on the job the short time they were here.

I just had my floors insulated in my 55 yr old house. It had none:(…read moreThe owner came to check it out and give me a bid. He gave me all the information and answered all the questions I had, very nice! Communication was good thru the whole process. I opted for the foam to sprayed under instead of the timey batting you roll out. It actually is non toxic and lasts longer:)) Im already happy with it and can tell the difference already! Actually I had a couple places my floor creaked and now no noise there:)) Crew was super nice, on time and courteous. I am now in the process of getting a quote for the attic. I highly recommend this business!! Im a business woman and Im very critical of who I do business with. I give this company 10 stars!

Good service and friendly, Jerry was the Tech and he evaluated the issue and took care of it…read morequickly ...much appreciated

They did an amazing job. Came to quote within 24hrs of me calling. They had the job done in a…read morecouple days and I couldn't be more impressed with the quality. They are very professional and have a great team. They definitely know what they are doing. I highly recommend them for any of your insulation needs. I will be having them come back to do the garage next.

I had thought that I was just going to get attic insulation but decided to let them give me a quote…read morefor attic and crawl space. The pricing was better than I had imagined so I had them do both. They scheduled me for the following week and it took about half a day to install. I appreciate the care that the workers took to keep my home clean. My home is staying a lot warmer and we use the heater so much less often than before. Highly recommended.

If you're looking for a company that's reliable, respectful, and truly values its customers, I…read morehighly recommend Nor-Cal. Definitely the best in the Bay!! !

From the very beginning, I appreciated how honest Damian was!…read more Given I have limited knowledge of insulation, he could have easily said that he could put blown-in insulation into my walls that already have old fiberglass insulation. Instead, he was completely honest about the minimal insulation effect it would have, given the amount of money and effort involved. Damian has a customer for life!

Max was very prompt during the estimate phase. After approving the estimate, setting up a date to…read moredo the insulation work was very easy We got about 1.7k sqft insulated and an attic fan installed Overall, very pleased with their service and would recommend them for insulation and other attic work

Unprofessional. Referring to new customers as "hey". I replied with my availability and they…read morereplied to offer a different time that I clearly stated that I'm not free. I replied "stop" but they keep bugging me.

I called Attic pro after I saw rodent activity in my house. They scheduled an appointment quickly…read moreand Jorge Hernandez came to do the inspection. He did a thorough job and explained me clearly from where the rodents might enter into the house. He also fixed a broken net in our vent and also put new traps.

Rodolfo and his team provided fast, professional, and excellent work! I would hire again.read more