Top-rated insulation pros.

Get matched with top insulation pros in San Jose, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in San Jose, CA?

Select your specific project to find the pro for you.

TRUSTED BY SAN JOSE, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon30
    Verified insulation services reviews

Find Insulation pros in San Jose

Bay Valley Insulation, Inc.
4.6(
193
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving San Jose, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Had a great experience hiring Bay Valley Insulation. The quote arrived very efficiently and was the price I was looking for. The crew of Tony and Henry arrived inside the scheduled window and work was completed in a timely manner that day. The job looked great in the blown attic and final clean-up was great. Thank you."
Response time1 day
Response rate85%
64 neighbors recently requested a quote
Avatar for Vortex Insulation, Inc.
Vortex Insulation, Inc.
4.8(
31
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving San Jose, CA and surrounding areas

Approved

In business since 2017

Free estimates

Offers commercial services

"Working with Vortex was a great experience. The crew was totally professional and very experienced and did an excellent job spraying closed cell insulation in the new addition to our house. When they were done the job site was left totally spotless. Their prices are very reasonable/competitive. We are very pleased with the work they did and how easy it was to work with them. We will certainly use them again in the future."
Blow in cellulose insulation into the garage walls
Spray foam insulation into the garage ceiling.
Old blow-in fiberglass insulation removal in the a
Response time1 day
77 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving San Jose, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I love this company! Garrett came to my home and assessed how efficient our current insulation, etc was. He was very informative and friendly — explained what we needed and how they could help. At the time, I decided to hold off and he never pushed the sale. When I was ready, he was quick to accommodate my schedule. His team: Angel, Luis, Tommy and TJ were great! They arrived early, were professional, courteous, kind, very helpful with my questions and were above and beyond to help fix things that I wasn’t even aware of. They also were more than happy to help with small problems that I had no idea how to fix. They worked quickly and cleaned up afterwards. You could tell they cared about their work which makes me feel confident that the job was done right. They were also fun to have around — my Great Dane loved them too! Garrett and Dave checked in with me during and afterwards to make sure things were going well and if I had any questions. I highly recommend Eagle Shield."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time7 hrs
8 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for AtticElite Insulation Solutions
AtticElite Insulation Solutions
4.6(
27
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving San Jose, CA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Attic Elite is BY FAR the most professional insulation contractor. When you are looking at a major purchase (over 10k) it's good to know the contractor isn't "flying by the seat of their pants", especially when asbestos is involved."
Get $500 Off Rodent Proofing
Get $500 off crawl space cleanup.
Get $500 off rodent proofing.
Spray Foam Insulation
Before Attic Clean Up

+77

Response time2 days
12 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Ideal Attic Insulation, Inc.
Ideal Attic Insulation, Inc.
4.8(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving San Jose, CA and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"I received several estimates from people but I chose Ideal Attic was my choice for cost and time of day when they could begin working on it which was the very next day. They explained to me what they were going to do and told me when they should be finished. I recommend them to anyone needing heating and insulation work."
Response time3 days
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for American Attics
American Attics
5.0(
8
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving San Jose, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"American Attic was everything they promised. Met with the owner , Sam, within a day to get a quote for removal of old insulation, rodent control and install of new insulation. He was professional and explained everything in detail of what was work was going to be done and how long it would take. We scheduled within a week at a reasonable price. His crew were neat, organized and finished on time! We were notified of some extra things that were found while they were on the job but were not pressured to have those things done. We recommend American Attic to friends or family and would definitely use them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+52

Response time2 days
Response rate100%
11 neighbors recently requested a quote
...
Showing 1-10 of 85
Insulation questions, answered by experts

Upgrading insulation in San Jose can make your home more attractive to buyers who value energy efficiency and home comfort. Enhanced insulation helps maintain consistent indoor temperatures, reduces noise from busy streets, and can contribute to lower utility bills. These improvements are especially appealing in San Jose’s tech-driven market, where eco-friendly features and improved thermal performance often boost resale appeal.

Helpful?

In San Jose, attic insulation typically takes one to two days, while wall insulation in older homes—often with lath and plaster—can take three to five days due to careful prep and electrical considerations. Full-home projects, including air sealing and ductwork adjustments, may require up to two weeks. Permit timelines and contractor schedules, especially during the spring and summer, can also influence project duration.

Helpful?

In San Jose, homeowners often overlook the importance of air sealing before adding insulation, especially in homes with older stucco or tile roofs. Failing to address gaps around recessed lighting or attic hatches can lead to heat loss. Many also underestimate the impact of microclimates and don’t upgrade crawl space vapor barriers, which can affect both thermal performance and indoor air quality.

Helpful?

Be cautious of quotes that don’t include a thorough home assessment or skip discussing San Jose’s unique climate needs. If a contractor avoids mentioning required permits, doesn’t address air sealing, or overlooks how insulation affects home comfort and ventilation, consider it a warning sign. Trustworthy professionals will explain how their work improves both energy efficiency and your home’s overall thermal performance.

Helpful?

Insulation in San Jose should be checked annually for signs of rodent activity, moisture intrusion after winter rains, and settling in attic spaces—especially in homes near the foothills. Inspect around HVAC ducts and recessed lighting for air leaks, and ensure vapor barriers in crawl spaces remain intact. Upgrading insulation as new materials become available can further enhance utility savings and indoor comfort.

Helpful?

The San Jose, CA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.