Top-rated insulation pros.

Get matched with top insulation pros in San Lorenzo, CA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY SAN LORENZO, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon89
    Verified insulation services reviews

Find Insulation pros in San Lorenzo

Bay Valley Insulation Inc
4.7(
46
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving San Lorenzo, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"

Insulating the exterior walls of our two story, 1700 sq ft house, involved drilling holes between each stud, blowing in insulating material, plugging the holes, spackling over the holes, priming and finally painting the holes.  Two man crew was very efficient in setting up scaffolding and then doing the work described.  We got a chance to see what the insulation looks like inside the wall when the force of the insulation popped out a built-in bookcase that was not secured.  Its a solid blanket of insulation, filling in the entire space.   Very impressive.  The results have been very noticeable.  The house feels more comfortable, and the heater turns on less frequently.  We should have done this years ago. 

Last part of the project was to blow additional insulation into the attic, which went very quickly.  Overall, the project took 2 very long afternoons/evenings to complete.  It makes a mess around the outside of the house, but they did a good job of cleaning up each day. 


"
Additional Photos
Recommended by93%of homeowners
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 Lorenzo, 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%
72 neighbors recently requested a quote
Avatar for Greenshield, Inc.
Greenshield, Inc.
4.6(
96
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving San Lorenzo, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Ahmad from GreenShield is very professional and provides excellent customer service. I was looking for a company to finish my insulation project as I had to fire Attic City for their poor customer service and terrible rodent proofing. Ahmad was extremely helpful in connecting me with another rodent company and also helped me find another company to install new ducts. Ahmad followed up with me regularly and informed me of a rebate program for the insulation and duct work. I am super grateful for Ahmadâ s help and I highly recommend GreenShield. If I could give more stars I would!"
Response time8 hrs
33 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving San Lorenzo, 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
9 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Attic Pros
Attic Pros
4.9(
233
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving San Lorenzo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Small jobs welcome

"I was looking online for insulation contractors, and found Attic Pros, Chris and his team arrived on time installed brand new attic insulation, cleaned our Crawl space and installed insulation, they took photos before and after. I am very happy with the work was completed defiantly recommend these guys."
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 time12 hrs
Response rate94%
151 neighbors recently requested a quote
Avatar for CA Attic Solutions Inc.
CA Attic Solutions Inc.
5.0(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving San Lorenzo, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

CA Attic Solutions\nAt CA Attic Solutions, we are dedicated to providing top-notch insulation solutions that enhance your home’s comfort, efficiency, and overall quality of life. Founded on the principles of excellence, integrity, and customer satisfaction, we have built a reputation for delivering reliable, high-performance services tailored to meet your unique needs. \n\nWe are committed to offering exceptional service, using the latest technology and highest-quality materials to ensure that your home remains comfortable and efficient throughout the year.\n\nhttps://californiaatticsolutions.com/

ATTIC INSULATION
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Atticare Construction
Atticare Construction
4.5(
177
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving San Lorenzo, 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%
21 neighbors recently requested a quote
Avatar for Rywen Insulation Inc
Rywen Insulation Inc
4.9(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Lorenzo, CA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

Rywen Insulation Inc is a licensed and family-owned company proudly serving the Bay Area. We specialize in high-quality insulation services, rodent proofing, and vapor barrier services that help protect your home or business from energy loss, moisture damage, and unwanted intrusions.\n\nWith a strong focus on long-term solutions, we’re committed to improving indoor comfort, enhancing air quality, and increasing energy efficiency. Our team delivers professional results with attention to detail and care on every project.\n\nContact us today to schedule a free estimate and experience reliable service you can count on.

restoration of handrail and concrete stairs
restoration of handrail and concrete stairs
restoration of handrail and concrete stairs
restoration of handrail and concrete stairs
restoration of handrail and concrete stairs

+17

Response time2 days
1 neighbors recently requested a quote
Recommended by16%of homeowners
...
Showing 1-10 of 85
Insulation questions, answered by experts

Chimney liners often benefit from insulation, though it is not always required. Insulation helps improve the liner's efficiency by keeping flue gasses hotter, which enhances draft and reduces creosote buildup. It also prevents condensation, which can lead to corrosion. Insulation is important for chimneys on exterior walls or in colder climates. Some building codes may require insulation, so checking local regulations is essential.

The primary purpose of insulation is to maintain comfortable temperatures in a home, whether that’s cool air when it’s hot out, or warm air in winter, but that’s not all it can do. All options will also minimize heating and cooling needs, lowering both your carbon footprint and energy bills in turn. And some options, like rigid foam boards, even offer soundproofing benefits, too.

The most energy-efficient windows are double—or triple-pane windows with low-emissivity (Low-E) coatings and gas fills between the panes. These windows reduce heat transfer, prevent drafts, and help maintain a consistent indoor temperature. But if replacing windows isn’t in your budget, pairing your existing windows with insulating window treatments can still make a noticeable difference in home comfort and monthly bills. 

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

Garden blankets and frost cloths are the best things to use to protect trees and plants from frost. They are made from polypropylene fabric, which is lightweight, breathable, and dries fast. If you can’t get garden blankets or frost cloths before the freeze, you should use lightweight blankets, sheets, or towels.

The San Lorenzo, CA homeowners’ guide to insulation services

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