Find top-rated spray foam contractors and save up to 27% on energy bills
Compare 7 verified spray foam insulation contractors serving Union City, California, backed by 521 customer reviews averaging 4.8★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Union City 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:
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:
I contacted 911 Attic Insulation after reading great reviews about them, and this company exceeded my expectations in every way. The reviews I read were all true, and the service provided was outstanding from start to finish. I called the company and thoroughly discussed the attic inspection with Nick, who arrived the next day to conduct it. Nick patiently answered all my questions and provided me with a detailed quote before the end of the business day. My attic was in dire need of attention, with old insulation that needed to be replaced, debris scattered all over the attic, and rat droppings. It was also located under the lowest attic imaginable. Due to unforeseen roofing and electrical work that suddenly became a priority, the one-day job for 911 insulation turned into a two-day job, which I requested. I paid the extra fee to return at a later date so that I could have other services being worked on. Overall, I am extremely satisfied with the service provided by 911 Insulation, and I would highly recommend this company to my family and friends. Now, let's talk about Nick. Nick was my point of contact throughout the entire process, and he kept me informed every step of the way. I didn't have to contact him for anything, as he always reached out to me. I even joked around, saying that if all my home services needs had Nick as the point of contact, renovating the house would be a breeze. Thank you, Nick and team, for the excellent service!
I had an attic with insulation in desperate need of repair/replacement. On top of that, we also had a rodent problem that we needed cleared up. In hindsight, we probably had the insulation and duct issues *because* of the rodent problem. After calling around for a few quotes, I found the team at 911 Attic. When they came out to give a quote, they were prompt, polite, took time to put shoe covers on, and never once tried to upsell things we didn’t need. They did mention a couple things we could add if we wanted to, but I never felt pressured. Even the way they provided the quote was more professional than I expected (itemized quote that allowed me to electronically review/approve). Then came the day of the job. It was scheduled to begin between 8 and 9, and being used to other types of companies being late (cable companies, I’m looking at you), I was expecting them closer to 9 or 10. I was happily surprised when a crew of four guys arrived at 8:15. They started putting down drop cloths and taped the job so that it reminded me of a professional house painters. They worked all the way through, with only a couple minutes off to grab some water, until the job was done. I checked out the job when everything was wrapped up and I couldn’t have been happier with the results. Not only do I have new ducts, new insulation, and fewer rodents (no rodents), I now have a place that I can use as storage that I wasn’t able to before. I would highly recommend the professionals at 911 Attic.
Daniel and his team did a very thorough job and left everything extremely clean. They were competitively priced and I would recommend them to friends and family without reservation.
Recent Reviews:
Amilcar did a great job handling the project of my home placing a French drain. He communicated well what needed to be done, got the work done on time as stated & overall professional.
Attics Pro responded very quickly. Wais Amiry carried out the inspection and answered all of my questions. The project was scheduled promptly, and there were enough workers on site. What was originally a five-day job was completed in four days. The site was kept very clean, and communication throughout the process was smooth. I am very satisfied with both the quality of the work and the price.
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.
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:
This company did the insulation for our home last year. During the inspection, they pointed out that the bathroom vent was leaking in the attic. They fixed the leak and did great job on installation. Insulation was also rebated by PGE with tax deduction on co-pay. Our heating bill went down. Definitely recommend this company.
Elite Energy installed attack insulation in my home. They are highly professional and have provided outstanding service. Staff is very courteous and did through job. They even checked all the appliances for gas leaks and burn quality. I highly recommend Elite Energy Efficiency for insulation and other services they offer.
Awesome work!! Super friendly crew!! Would definitely recommend to ALL friends and family!! No hiccups throughout the entire service!!! 10/10 in my book!!
These are the questions Union City 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 7 verified Union City contractors above for exact quotes.
Not finding the right fit in Union City? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.