Find top-rated spray foam contractors and save up to 35% on energy bills
Compare 8 verified spray foam insulation contractors serving San Leandro, California, backed by 1,481 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 Leandro contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — 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 Cold.
Recent Reviews:
On Wednesday Axel walked me through the whole process a couple of times. He immediately won my confidence and I signed up to get the job done by Rywen. I could not wait for the work to start. The team of workers arrived Monday morning as per agreement - they displayed nothing but professionalism as they prepped the house with paper walkway and plastic tunnel leading to the ceiling opening. Like clockwork the old insulation was sucked out and new insulation laid down piece by piece and secured. In the unfinished basement, where rat infestation was evident, all the junk piled up over more than three decades was removed and hauled away. The foundation and walls cracks were sealed to keep mice and rats from entering the premises. The kitchen was thoroughly inspected for cracks in the walls and cabinetry. Where necessary, cracks were treated with the application of sealant and or with wire mash. I am confident I made the right decision to go with Rywen. I highly recommend them.
Rywen Insulation is an excellent company! Every step of the way was thoroughly explained and completed in a professional manner. Axel did the initial inspection, Walter led his team with the job of replacing insulation, disinfecting and rodent proofing and Roni was super helpful with an electrical issue I had. Everyone at the company was pleasant, knowledgeable and patient with my questions. I highly recommend them!
I was very happy with Rywen’s customer service, communication, and attention to quality. I was especially impressed with their suggestions, for example, ensuring we got the desired thickness of insulation in the attic, overall, plus providing my desired amount of future access. To me, it felt like the company has a consistent attitude of going over and above and that’s rare. Thanks!
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:
Idan does not disappoint! This is our second time using his services, and this time I went straight to him without even shopping around. His team is responsive, efficient, and highly professional. A major bonus is their expertise with home insurance systems, which made that part of the process effortless for us. Later, despite a dispute over the scope of work (which was due to a miscommunication, not his fault), he stood by his word and honored his promises, even when it resulted in a significant financial loss for him. His integrity, particularly in that situation, is truly commendable!
After experiencing a roof leak that led to multiple issues, I interviewed several companies before ultimately choosing Leader Restoration, and I’m so glad I did. From start to finish, the process was smooth and professional. I worked closely with project manager Idan, who was knowledgeable, responsive, and easy to work with. Leader Restoration handled everything seamlessly—including coordinating with my hygienist for the final mold inspection, which we passed on the first try. Their expertise in mold remediation and dedication to quality restoration services truly stood out. I couldn’t be happier with the results and highly recommend them to anyone facing water or mold issues.
We discovered mold during our home remodel and contacted Leader Restoration. Idan, the project manager, was incredibly professional, and Julio, the lead technician, did excellent work. The mold remediation process was smooth, the price was competitive, and we got clearance in less than a week. Highly recommend them for reliable mold removal and restoration services!
Recent Reviews:
Great company Highly recommended 5 star….
Responded very quickly and very professional fantastic job
Great , would recommend !
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:
So glad that we finally had the attic insulated. The gentlemen were very knowledgeable and worked like clockwork to clear the debris from a previous roofing job. The clean up was thorough and only took a few hours. So far I can feel the difference as there aren’t any drafts. We will see how our utility bills look over the winter and how warm the house feels now that the weather is getting colder. We have a PSEG weather assessment scheduled. Look forward to their feedback as well.
Before hiring Atticare, I spoke with three other companies, and none of them felt as organized or knowledgeable. Sean the technician was great, and walked me through every step of the process and answered all my questions without rushing me. The price was fair, transparent, and exactly what was promised — no surprises. The rodent work was done professionally and the team clearly knew what they were doing. I’m very happy I went with Atticare and my Rat issue is definitely resolved!
Atticare upgraded my insulation and cleaned my air ducts. The difference in air quality is noticeable. My allergies improved and the airflow around the house feels stronger. Five stars for their professionalism specially, to the technician, Sean.
Recent Reviews:
This company has great tenacity and work ethic I would 100% refer someone to their services as they are the best in the industry. Don’t look any further, go with Eagle Insulation they will take care of you.
The very best experience, friendly staff , excellent service,highly recommend.
Thank you the insulation is amazing great job guys
Recent Reviews:
I recently had Atticare come out to clean and insulate both my attic and crawlspace, and I can’t say enough good things about the experience! Sean was my technician — super friendly, on time, and clearly knew his stuff. He showed me photos before and after, explained everything in plain English, and made sure I understood exactly what was being done.
I recently had Atticare come out to my house last year to remove old insulation and then lay down new insulation along with rodent proofing the attic. A little over a year later Rats were still getting into my Attic and even though my warranty had expired Attic care was nice enough to send out their engineer Kyle to address the issue. Kyle spent several hours at my house today to do a thorough inspection and rodent proofing of any access areas were the rats might be getting into my attic. Kyle also repaired my air ducts the rats were chewing, cleaned up the attic of any droppings and completely sanitized. Very happy with the follow up work Kyle was able to complete today.
I recently used Atticare for my home in Pasadena, and I can honestly say it was one of the best home service experiences I’ve ever had. The team showed up right on time, explained the process in detail, and got to work right away. They removed the old insulation, cleaned and sanitized the attic, and installed fresh insulation that made my home feel instantly more comfortable. What impressed me most was how thorough and professional they were. They didn’t just do the job—they also sealed entry points and made sure my attic was protected for the long term. It’s such a relief to know my home is cleaner, safer, and more energy efficient. I highly recommend Atticare 5 stars all the way!
These are the questions San Leandro homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 8 verified San Leandro contractors above for exact quotes.
Not finding the right fit in San Leandro? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.