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Business Details
50+ Years
experience
Your Trusted Insulation Contractors in San Jose Since 1958
Central California Insulation has been a trusted name in insulation services since 1958, serving San Jose and the Greater San Francisco Bay Area. As a third-generation family-owned business, we combine decades of expertise with a commitment to quality, safety, and customer satisfaction. Our team specializes in residential and commercial insulation solutions, partnering with industry leaders like Owens Corning to deliver durable, energy-efficient results. We prioritize ongoing training, adherence to the latest building codes, and personalized service for every project. From thermal and acoustical insulation to firestop applications, we ensure homes and buildings meet the highest standards of comfort and efficiency.

Our dedication to safety is reflected in weekly training sessions, certifications, and partnerships with the Northern California Carpenters Union. As Owens Corning Certified Energy Experts, we offer limited lifetime warranties on materials and workmanship, providing unmatched peace of mind. Our portfolio spans Silicon Valley, from tech campuses to residential properties, demonstrating our versatility and technical proficiency. We actively support energy-saving initiatives, including federal tax credits for homeowners, to make insulation investments more accessible. With a historic headquarters dating to 1893, we remain rooted in our community while embracing innovation to exceed client expectations.
Services
Residential Insulation Commercial Insulation Thermal Insulation Acoustical Insulation Firestop Insulation
Details
  • Year established: 1958
Highlights and features
  • Third-generation family-owned business with 65+ years of local expertise
  • Owens Corning certification with lifetime warranties on materials and workmanship
  • Weekly safety training and Northern California Carpenters Union apprenticeship partnerships
  • Expert guidance on federal tax credits for residential insulation upgrades
  • Proven track record serving Silicon Valley's most complex commercial projects
Associations and certifications
  • Owens Corning Certified Energy Expert
Services
Residential Insulation
Our residential insulation services enhance home comfort and energy efficiency through expert installation of Owens Corning PINK Fiberglass and other premium materials. We specialize in new construction and retrofit projects, helping homeowners reduce energy costs by 12-18% while improving indoor air quality and sound control. Our crews provide comprehensive solutions for attics, walls, and crawl spaces.
Commercial Insulation
We deliver high-performance commercial insulation solutions for offices, warehouses, and industrial facilities across Silicon Valley. Our services include thermal, acoustical, and firestop applications that meet strict energy codes and improve building durability. With partnerships with top architects and contractors, we ensure energy-efficient installations that qualify for tax deductions under Section 179D.
Firestop Insulation
Our firestop insulation systems protect commercial buildings by sealing penetrations in fire-rated walls and floors. Using tested materials and methods, we help maintain structural integrity during fires while complying with safety regulations. This service is critical for achieving code compliance and passing inspections in new and retrofit construction projects.
Questions
What insulation services do you offer?
We provide residential and commercial insulation including thermal, acoustical, and firestop solutions. Our services cover new construction, retrofits, and energy efficiency upgrades for homes and buildings.
Are you certified by Owens Corning?
Yes, we are Owens Corning Certified Energy Experts with access to premium materials and limited lifetime warranties on both products and installation workmanship.
Do you offer energy tax credit assistance?
We help homeowners qualify for federal tax credits covering 30% of insulation costs up to $1,200. Our team provides documentation to support your IRS Form 5695 submission.
What areas do you serve?
We operate throughout San Jose, Silicon Valley, and the Greater San Francisco Bay Area, with experience on projects ranging from tech campuses to residential properties.
Are your crews trained in safety protocols?
All field personnel undergo regular safety training through the Northern California Carpenters Union and participate in our Injury and Illness Prevention Program.
Reviews (3)
Nic T.
Jun 10, 2013 Report
You can tell how good a vendor is when you run into an issue. Originally I had a great and easy experience with CCIS. Well on Friday I noticed the fan in my bathroom didn't have good suction. I figured since it was in a very small part of the ducting got pinched when the insulation went in. I called Just at noon on Friday, the hottest day of the year. By 1:30 his guy came down from the 120 degree attic with the fan working great again. So overall, another great experience with CCIS.
A. L.
Mar 05, 2013 Report
I had a great experience with Cetnral Caliornai Insulation- they came out pretty quickly to my home and the guys were really friendly. They got everything done and now when i turn the heater on my house actually stays warm. Best investment I made and its going to save me a ton on the heating costs. I called Justin the owner to thank him and he was extremely friendly and I will refer them for sure.
Megan G.
Jul 25, 2012 Report
This is our THIRD time using Central California Insulation for our owner-builder home remodel, and once again 5-stars! Early 2011 - wall & ceiling insulation for our detached garage
Summer 2011 - insulation for our house remodel subfloor
Summer 2012 - wall & ceiling insulation for our house remodel

The house has been a HUGE project, and knowing I was going to use Central California Insulation again was such a relief. I knew it was one of the only pieces that wouldn't be a headache, and would be done without issue! Their quote remained competitive and the work was excellent, as