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Find Batt, rolled or reflective insulation install or upgrade pros in San Jose

Bay Valley Insulation, Inc.
4.6(
192
)

Serving San Jose, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"I hired Bay Valley to clean out one attic and blow in insulation to the two attics in my home. Joel came out and did a thorough inspection, explaining everything as he went along. the quote was reasonable and fair. Unfortunately, on the scheduled day the team was overbooked and although I had taken the day off, by the afternoon it was clear they would not have time to do my job. Knowing I was disappointed , they agreed to come the next day, which was Saturday even though they don't work Saturdays. Tony and Henry arrived in the afternoon and worked literally non-stop for hours until they got the job done. They were as clean as such a job allows for and when they left the debris was gone. I would recommend Bay Valley Insulation to anyone but I would also be sure everyone was in sync on the schedule."
Response time1 day
60 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Attic Pros
Attic Pros
4.9(
233
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Credit card accepted

"Work I needed done: * Attic Rodent Proofing * Attic Duct Replacement (from aforementioned rodents) * Attic Insulation Replacement * Attic Cleaning * Crawl Space Rodent Proofing * Crawl Space Insulation Replacement * Crawl Space Cleaning * Crawl Space Vapor Barrier Installation * Crawl Space Dehumidifier Installation I was able to schedule a time for them to come visit the property to get a detailed quote very easily through their website. Jeremy was punctual and respectful when visiting the property. He was able to quickly assess the current state of the attic and crawlspace and provide a fair estimate. He was also very knowledgable in advising me on additional steps that I could take to further protect my property. Jeremey also did a great job deciding on the type of insulation and vapor barrier that will be installed that would result in long term success in taking care of my property. Jeremy continued to be very responsive in answering my questions throughout the rest of the process. Omar was the foreman on site, he and the rest of his team were also incredibly respectful and worked diligently over the course of 4 days to finish up the project. Omar did a great job communicating work that had been completed each day as well as any observations he made in the attic and crawlspace. He and his team did a great job protecting the property while they completing their work. If I have any attic or crawlspace needs again I will absolutely reach out to Attic Pros and ask specifically for Jeremy, Omar, and his team. I will come back and update this review with before / after photos."
Blow-In Attic Insulation
San Jose, CA Attic Insulation Installation
Danville, CA Vapor Barrier Installation
Mill Valley, CA Crawlspace Cleaning
Benicia, CA Attic Cleaning & Insulation

+3137

Response time11 hrs
Response rate94%
156 neighbors recently requested a quote
Avatar for Atticare Construction
Atticare Construction
4.5(
172
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"The crew arrived on time and installed plastic on the floor and walls for protection. They did a good job removing the old insulation and installing new insulation. The crew did a great job cleaning up. Nice professional job."
Before Atticare Services
After Properly Sealing the Access
After Insulation Installation
Clean and ready for Insulation Installation
After Insulation Installation

+26

Response time2 hrs
Response rate91%
4 neighbors recently requested a quote
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)

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
2 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Insulation Alliance
Insulation Alliance
5.0(
26
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Attic Professionals was awesome to work with and highly recommend their business for anyone looking for attic work. We hired his business to replace the insulation in our attic after I took care of a rat issue. We needed all the insulation and droppings removed, cleanse, and replace. Attic Professional crew were diligent with making sure the interior of our home was protected covering the walls and floors to remove the old insulation and did a great job installing the new insulation. Thank you for great service!!!!!!!!"
Soundproofing
Soundproofing
Attic Cleaning
Attic Cleaning
Attic Cleaning

+103

Response time2 days
Response rate93%
25 neighbors recently requested a quote
Avatar for AtticElite Insulation Solutions
AtticElite Insulation Solutions
4.6(
27
)

Serving San Jose, CA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"They got the job done in one day, very careful personal. New insulation is working great. We are now waiting for the details on the rebate. Price was also good and affordable"
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
81 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for SDI Insulation, Inc.
SDI Insulation, Inc.
4.1(
55
)

Serving San Jose, CA and surrounding areas

Approved

In business since 1975

Free estimates

Warranties offered

"Joe Stromberg, project manager, is an excellent asset of the company!!! I was also lucky to have two skillful workers who performed the project. I will definitely recommend SDI Insulation if asked to. Luba"
Spray Foam Insulation
Cooton Batts Insulation
Fireplace Sales and Install
Interior Insulation
Interior Insulation

+22

Response time2 days
43 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for batt, rolled or reflective insulation install or upgrade projects in San Jose, CA

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The San Jose, CA homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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