Find top-rated spray foam contractors and save up to 27% on energy bills
Compare 13 verified spray foam insulation contractors serving San Jose, California, backed by 784 customer reviews averaging 4.9★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened San Jose contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 27% — get free quotes and read verified reviews below.
Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Hot-Dry.
Recent Reviews:
Jorge and team were exceptional to work with. The removed our old insulation, sealed the attic and added new fiberglass insulation, explained each and every step and went great lengths to do rodent proofing. And all it took was few hours. Jorge also came few months later to fix some of the gaps that the HVAC crew left in our attic. I highly recommend Ideal Attic for your insulation needs. Their price was the lowest as well among all other quotes.
I feel very fortunate to have found Ideal Attic Insulation to work on the attic and crawlspace of our newly purchased home. From the start, Jorge came to provide a free inspection, and he was extremely professional and thorough. He personally went into the attic and crawled into the crawlspace to check every detail. After his inspection, he gave us a very fair estimate with a clearly written and complete scope of work. We also requested quotes from other companies, but it became clear that Ideal Attic Insulation—and especially Jorge—was the most professional, responsible, and knowledgeable. Jorge even helped us connect with other reliable handymen for additional repairs we needed around the house, which we truly appreciated. Once our plumbing repairs were completed, we scheduled the attic and crawlspace work. Jorge’s team handled the attic cleaning, sealing, rodent-proofing and new insulation installation. In the crawlspace, they performed a full cleaning, rodent-proofing, and installed a new vapor barrier. The scheduling was quick, and everything was completed within three days. The workmanship was excellent—clean, organized, and very professional. We really trust Jorge and appreciate his honesty, experience, and dedication. I highly recommend Ideal Attic Insulation to anyone looking for attic or crawlspace services. We will definitely continue using this company in the future. Highly recommended!
Jorge is the best. My wife and I had contacted 4 companies, and by far Ideal Attic Insulation was the winner. With us it wasn't all about price, but quality, knowledge of the trade and experience. We had our old insulation removed when we replaced our roof. Yes, like lot of us when your roof is compromised you have issues with rodents. Once our roof was completed, we set our appointment with Jorge. He came out the following afternoon, and boy was it hot. He inspected our entire attic and came up with a game plan to vacuum and sanitizing our entire attic space. He took a lot of pictures and shared areas of concern with us. We had the roofer's comeback out and tighten up area that may have been able to be compromised. once these areas were tightened up Jorge sent out his crew to install mess wire and stray foam around vent pipes, etc. Jorges recommended we wait a few weeks to install the insulation to see if there were any signs of rodents. After a few weeks and weekly inspections by Jorge and his crew, there were no signs of pests. They installed the insulation, and we could not be happier. We highly recommend Ideal Attic Insulation. Don't waste your time looking for other insulation companies call ideal Attic Insulation and know you made the right decision.
Recent Reviews:
Noble Insulation inc is a excellent company that offers the best Spray Foam Insulation service for your home and business.Their website is easy to navigate to get the service and contact info you will need.
I felt really taken care of by Noble Insulation. They explained everything clearly, especially about Spray Foam Insulation. Honestly impressed with their service. Super friendly team, and I appreciated how patient they were.
Noble Insulation Inc exceeded expectations with their professional spray foam insulation services. Excellent energy efficiency, soundproofing, and seamless installation. Highly recommend their expertise and customer service.
Recent Reviews:
Amazing Company
Recent Reviews:
Damian and his crew installed R-19 insulation under our house. They were quick and easy to work with. And even provided a couple of photos.
The guys did a fantastic job removing all the old loose-fill insulation from my ~120 year old craftsman, including a big pile of old wood slats and other refuse from prior roofing jobs, and replaced it all with new blown-in insulation. They took care to put down plastic and tape before they started and cleaned up everything when it was all done. The house is noticeably more comfortable, and it was all for a very reasonable price. I should have done it years ago.
I just purchased my new home and noticed some rooms warmer/colder than others. Damian came and inspected our house. He pointed out the issues in our attic and provided his recommendation and a few options. We chose to remove the old insulation, and replace it with new. The two workers Abad and his helper were punctual, kind, and very respectful of our newly renovated home. I also really appreciated Damian’s follow up call. As I mentioned to him, we already feel a huge difference! I haven't been running our heater as much and I’m excited to see our PG&E bill go down. Thank you, Nor Cal!
Recent Reviews:
Awesome company! I called them today for the heating furnace repair that I need, and they fixed it effortlessly. The technician provided excellent customer service and the best repair. He was professional, skilled, and incredibly meticulous throughout the entire process. Thank you very much for your help! I will be calling you again someday! Keep up the good work, guys! Until next time!
Amazing work! Torrance Cooling & Heating installed a new AC system in my home, and the results are fantastic. They were meticulous in their work, ensuring every component was properly installed and the system functioned efficiently. I’m very pleased with their service.
Recent Reviews:
Had a wonderful experience. The people there were so friendly I almost forgot I was in california.i will highly recommend this to anyone else that might be interested.
good work nice people.I would recommend this company
Great customer service,Highly recommend this company for your needs.
Recent Reviews:
Had Everlast Attic Insulation contractor insulate my attic, and I couldn't be happier with the results. Highly recommend their services!
Highly recommend Everlast Attic Insulation contractor for anyone looking to improve their home's energy efficiency. They deliver excellent results.
Everlast Attic Insulation contractor's attention to detail and commitment to quality insulation work is commendable. Very satisfied with their service.
Recent Reviews:
We had a mice issue in the basement + a few areas inside the house, and Attic Bros did a fantastic job cleaning up, blocking entrances, installing new insulation, and also fixing a damaged air duct. The team was certainly professional, and the price was reasonable for the quality.
Initial Review (and hopefully only review). I've evaluated four attic companies and ultimately selected Attic Bros. Here are my thoughts: Excellent service throughout the process. Ori did a great job addressing my concerns and gave a fair estimate for the project. He also did not upsell me on services that I didn't need. Note: Attic Bros aren't the cheapest service but they are also not the most expensive. Vic (project manager) did a phenomenal job in managing things and letting me know about the condition of my attic. His team did a thorough job pest proofing things and properly laid down R-38 batts.
I'm a repeat customer at Attic Bros, for two different scenarios: - Attic insulation x 2 - Whole house insulation Both times I shopped around and ended up going with Attic Bros based on customer ratings and competitive pricing. At this point, they will be my go-to for my insulation needs since both times the quality, service, and price have always won out. (My loyalty to them over 7 years has even been recognized) Moreover, even as difficult of a customer as I've been with multiple reschedules and multiple callbacks, they've always shown patience until I was ready. I don't usually like to write reviews out of the kindness of my own heart, but I felt that this company deserves it. Thanks for hanging tight with me and for all the help team - Ori, Justine, Jesus.
Recent Reviews:
We went with Remove, Seal, Sanitize old insulation in effort to identify if there was a Termite swarm. We figured we’d need one day for termite inspection and a separate day for a termite treatment. The day after Attic Pros we had Bongiorno termite inspection come out and he went into the attic and there was no swarm identifiable all clean. Attic Pros did the complete removal and everything was visible and clean. It was cold at night and we didn’t wanna wait for our pre-scheduled couple of days out so I contacted Attic Pros and they came out the next day. Three guys installedR38. Bats without paper backer minimizing mold- they did an excellent job. All of our light was sealed. The hatch got new layer of bubble wrap insulation. The Attic vents had chutes installed allowing fresh air interchange. Can feel the difference- absolutely a warmer house. Thank you Attic Pros. Also Attic Prod had low cost to many other HVAC companies that just farm it out to subcontractors. Highly recommend Attic Pros.
I was able to self schedule an appointment within 2 days. Rabi was very professional and clearly communicated both the issue and the plan for resolution. They were able to complete the work within a few days. Their price was competitive. The team arrived between 10 am and worked all day to clean my attic, close all access points, and install the new insulation. They worked all day until 6 pm. They were very pleasant, answered my questions, explained things well. The process was pretty quiet so I was able to work at my remote job while they worked. They left everything clean in the crawlspace and took all garbage with them. I did not enjoy having creatures in the attic but they made the process of getting rid of them as pleasant as possible.
This is an excellent Company: They are professional, caring and thorough in their work. They took before and after pictures which was a great help. They removed rats, mold, asbestos from the attic. They removed the installation and replaced it with new. They sealed areas where the rats could have entered. They set traps and so far no sign of rats. They left my house clean. I have confidently referred you to my neighbors. Thank you.
Recent Reviews:
Tri county did wall insulation a few years ago, which made my home warmer in the winter. The wall also patched well after the blow in, even though it is outside wall. The price was the most reasonable one. One bonus I got is the worker patched the hole in attic for the rodent not to enter. I recommend this company for pricing, quality of job and service.
Excellent, professional, and very knowledgeable contractors and crew. I got multiple bids and Tri-County was competitive, but not the lowest. It was absolutely worth paying a few dollars more for the confidence and honesty I got with Tri-County. They scheduled my job realistically and worked with me when there were delays. In and out in a timely and reliable manner. Highest recommendation!
We had insulation put in under the house and in the walls. It was a big project and took 2.5 days. These guys came in and were so professional, knowledgeable and respectful. They never complained even when presented with obstacles. Hands down some of the best people we’ve worked with during the last several years of renovations. They even took time out to chat with my nosy kids. My daughter loves to say that Pedro is her new friend! Thank you!!
Recent Reviews:
Atticity remplaced my insulation 2 days ago at s San José did rodent prolfing and clean my crawl Spaces as Well I’m very happy with the servic thanks ro David team
Atticity did great job at my house in Sunnyvale David came on time did an estimate for the attic and crawl space he was able to schedule the job pretty quick they removed the old insulation with all rats droppings seal all the attic and install radiant barrier my electricity bill was super high during the summer time I’m very happy with David’s team I will definitely recommend them to friends and family
Atticity did very good job at my house in San Jose professional polite came on time they vacuum my old insulation in 4 hours and replace with rolll in insulation pink David was amazing answer all my questions A+
These are the questions San Jose homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 27% typical energy savings. Compare the 13 verified San Jose contractors above for exact quotes.
Not finding the right fit in San Jose? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.