We used their services to get rid of rats and protect our house. They are very professional and great to work with. Initial impression / work has been great. Will share an update since we got their 5 year protection plan.
Cellulose insulation
Upgrade your home’s thermal protection with sustainable, fire-resistant cellulose insulation—installed quickly and professionally by our expert team.
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Smart, sustainable insulation that performs
Cellulose insulation is a smart choice for homeowners who want effective energy savings and an environmentally friendly solution. Made from recycled paper treated with non-toxic fire retardants, cellulose provides excellent thermal performance and superior coverage.
Ideal for walls, attics, and hard-to-reach spaces, cellulose is blown in to create a dense barrier that reduces drafts and helps maintain consistent indoor temperatures. Our team uses advanced equipment and techniques to ensure precise installation—giving you comfort, efficiency, and peace of mind for years to come.
Why choose cellulose insulation?
High thermal efficiency
Cellulose insulation delivers outstanding thermal performance with a high R-value per inch, effectively slowing heat transfer through your walls, attic, and floors. Its dense, tightly-packed fibers create a continuous thermal barrier that minimizes energy loss and keeps your home comfortable year-round.
Eco-conscious and safe
Made from up to 85% recycled materials and treated for fire resistance, cellulose is a non-toxic, sustainable insulation option that supports a greener home.
Great for soundproofing
Thanks to its density, cellulose is also excellent at reducing sound transmission—giving you a quieter indoor environment.
FAQs
Where can cellulose insulation be installed?
It’s perfect for attics, walls, crawl spaces, and floors—especially in existing homes where dense packing can fill in gaps and boost performance.
How long does cellulose insulation last?
With proper installation and no moisture intrusion, cellulose insulation can last 20–30 years or longer while maintaining its effectiveness.
Is cellulose insulation resistant to pests or mold?
Yes. The treatment process includes natural pest deterrents and fire retardants, which also help resist mold and mildew growth.
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Hear from our customers
Vahid F.
Justin B.
Team came in and fixed all our issues in a day, responsive, hardworking, did a great job.
Becky H.
They are very helpful showing how your system works and how a new one works. They will work with you to get what you need and for a reasonable amount and time. I was impressed.
Eric O.
We have the whole house ductwork and HVAC replacement in SF. Attic Star team is expert in this field. They did a great job finishing up the details from this renovation. Customer service Hakan also very responsive and make sure we are 100% satisfied. Highly recommended !!
Dawn R.
Attic Star did a fantastic job on our attic. Attention to detail, professional, personable, and a clean job, great company. They get all the debris out, clean, close up openings and install insulation. They did not leave any debris in or out of our house. They also take pictures so you can see the results. Highly recommend.
Ann K.
They cleaned up my attic and replaced all my insulation. They were easy to work with and the price was great. Very happy with their service.
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