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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon80
    Verified insulation services reviews

Find Insulation pros in San Leandro

Avatar for Attic Pros

Attic Pros

4.82(
85
)
Approved Pro

Attic Pros

4.82(
85
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
16 years of experience

Attic Pros is your go-to attic insulation installation and rodent removal contractor in San Francisco Bay Area. We offer a wide range of services for rodent removal, attic cleaning, insulation replacement, and crawl space cleaning to meet all your needs. Our team is dedicated to providing you with the best possible customer service. Contact us today for a free estimate!

"All done nicely"

Mandeep R on February 2025

Attic Pros is your go-to attic insulation installation and rodent removal contractor in San Francisco Bay Area. We offer a wide range of services for rodent removal, attic cleaning, insulation replacement, and crawl space cleaning to meet all your needs. Our team is dedicated to providing you with the best possible customer service. Contact us today for a free estimate!

"All done nicely"

Mandeep R on February 2025


Bay Valley Insulation Inc

4.88(
32
)
Approved Pro

Bay Valley Insulation Inc

4.88(
32
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
37 years of experience

Insulation of New and Existing Construction throughout the Greater Bay Area. Additional phones - (510) 440-8489, (800) 281-0401. For best results when requesting a quote please include the following: 1-Your phone number 2-Approximate Square Footage of Job. 3-Clearance of Attic at Peak 4-Approximate thickness of current insulation 5-Age of home 6-Is this a one or two story home

"Happy with everything from start to finish. Quality work and great customer service including filing for the California rebates!"

Bryan C on July 2024

Insulation of New and Existing Construction throughout the Greater Bay Area. Additional phones - (510) 440-8489, (800) 281-0401. For best results when requesting a quote please include the following: 1-Your phone number 2-Approximate Square Footage of Job. 3-Clearance of Attic at Peak 4-Approximate thickness of current insulation 5-Age of home 6-Is this a one or two story home

"Happy with everything from start to finish. Quality work and great customer service including filing for the California rebates!"

Bryan C on July 2024


Avatar for American Attics

American Attics

5.00(
3
)
Approved Pro

American Attics

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

The business specializes in providing insulation solutions aimed at optimizing energy efficiency for residential properties. We offer a range of insulation products and services tailored to different types of homes and climates, helping homeowners reduce energy consumption and lower utility bills while enhancing comfort and sustainability.

"The work was performed to my satisfaction. The Sam and the crew arrived on time and explained what was going to happen. The crew prepared the house to minimize any dust and went to work. The job was completed in two days. There were a couple of issues during the job, which were addressed in a timely manner. Overall, I am very happy with the work and would recommend American Attics."

Jeff L on June 2024

The business specializes in providing insulation solutions aimed at optimizing energy efficiency for residential properties. We offer a range of insulation products and services tailored to different types of homes and climates, helping homeowners reduce energy consumption and lower utility bills while enhancing comfort and sustainability.

"The work was performed to my satisfaction. The Sam and the crew arrived on time and explained what was going to happen. The crew prepared the house to minimize any dust and went to work. The job was completed in two days. There were a couple of issues during the job, which were addressed in a timely manner. Overall, I am very happy with the work and would recommend American Attics."

Jeff L on June 2024


Avatar for Insulation Alliance

Insulation Alliance

5.00(
2
)
Approved Pro

Insulation Alliance

5.00(
2
)
Approved Pro
8 years of experience
Free onsite estimate

In Business Since 2017 Insulation Alliance is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Insulation Alliance is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"When Insulation Alliance came, they were very professional. They laid down plastic everywhere in the hallway and the bedroom. They cleaned out the whole attic. They took out the old insulation and put in the new Insulation which was R 44. They cleaned up everything and everything was clean when they left. They also sanitized the attic. You will not be disappointed that you hired."

Gloria l on January 2024

In Business Since 2017 Insulation Alliance is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Insulation Alliance is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"When Insulation Alliance came, they were very professional. They laid down plastic everywhere in the hallway and the bedroom. They cleaned out the whole attic. They took out the old insulation and put in the new Insulation which was R 44. They cleaned up everything and everything was clean when they left. They also sanitized the attic. You will not be disappointed that you hired."

Gloria l on January 2024


Attic Cleaning Service

5.00(
1
)
Approved Pro

Attic Cleaning Service

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Transform your living spaces with our Attic Cleaning Services in Oakland, CA. Specializing in insulation installation, duct cleaning, and comprehensive attic solutions. Enhance energy efficiency and indoor air quality with our expert services. We serve in Oakland, CA, Piedmont CA; Albany CA; Orinda CA; Moraga Town CA; El Sobrante CA; and the surrounding areas. Insulation Contractor, Insulation Service, Floor Insulation Installation, Attic Cleaning and Insulation, Insulation Removal and Installation Professional Insulation Installation For more information visit our website: https://insulation-oakland.com/ We also accept the following payment methods: Cash

"Juan and his crew were amazing, they did everything as asked. I wasn't exactly an easy customer as I had a custom layout for my airducts and they knocked it out perfectly within a day when other estimates said 2-3 days and for a fraction of the cost. Started out as a DIY, so I had most of the material and they made it work."

Richard S on August 2024

Transform your living spaces with our Attic Cleaning Services in Oakland, CA. Specializing in insulation installation, duct cleaning, and comprehensive attic solutions. Enhance energy efficiency and indoor air quality with our expert services. We serve in Oakland, CA, Piedmont CA; Albany CA; Orinda CA; Moraga Town CA; El Sobrante CA; and the surrounding areas. Insulation Contractor, Insulation Service, Floor Insulation Installation, Attic Cleaning and Insulation, Insulation Removal and Installation Professional Insulation Installation For more information visit our website: https://insulation-oakland.com/ We also accept the following payment methods: Cash

"Juan and his crew were amazing, they did everything as asked. I wasn't exactly an easy customer as I had a custom layout for my airducts and they knocked it out perfectly within a day when other estimates said 2-3 days and for a fraction of the cost. Started out as a DIY, so I had most of the material and they made it work."

Richard S on August 2024


Avatar for Los Gatos Roofing

Los Gatos Roofing

4.89(
211
)

Los Gatos Roofing

4.89(
211
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Excellence in Roofing is more than just a tag line at Los Gatos Roofing; it is a way of doing business. With a long and storied history of service in the Bay Area, the Los Gatos Roofing family demands a strong commitment to customer service and the highest quality standards of craftsmanship. Additional address - PO Box 1726, Los Gatos, CA 95031. Additional phone number - (408) 395-9091. Additional contact names - Gary Radonich, Cameron Radonich, Randy Brown.

"This was a small job, but I was treated well. Their price was good, they were professional and prompt. I could not ask for more."

Andrew L on July 2022

Excellence in Roofing is more than just a tag line at Los Gatos Roofing; it is a way of doing business. With a long and storied history of service in the Bay Area, the Los Gatos Roofing family demands a strong commitment to customer service and the highest quality standards of craftsmanship. Additional address - PO Box 1726, Los Gatos, CA 95031. Additional phone number - (408) 395-9091. Additional contact names - Gary Radonich, Cameron Radonich, Randy Brown.

"This was a small job, but I was treated well. Their price was good, they were professional and prompt. I could not ask for more."

Andrew L on July 2022


Avatar for Guardian Protection

Guardian Protection

4.74(
2,120
)

Guardian Protection

4.74(
2,120
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024


Avatar for Attic Masters insulation Services

Attic Masters insulation Services

4.82(
99
)

Attic Masters insulation Services

4.82(
99
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Attic Masters Insulation Services specializes in providing high-quality insulation solutions for residential properties. Our services include insulation removal, installation, and attic cleaning, focusing on energy efficiency and comfort. With a commitment to eco-friendly materials and practices, we ensure environmentally responsible solutions that enhance indoor air quality. Our experienced team assesses your specific needs and offers customized insulation options tailored to your home. We pride ourselves on delivering reliable service, customer satisfaction, and maintaining a clean work environment. Choose Attic Masters to improve your home’s energy efficiency and comfort while reducing energy costs for a healthier living space.

"i can only say good things about working with Attic masters. Great communication, They came on time, protected our floors and hallway from insulation dust, took pictures of the before and after for us so we can get the rebate. overall, very easy and stress free company to work with. I would definitely use again, it was a pleasure to work with true professionals."

Victor H on October 2021

Attic Masters Insulation Services specializes in providing high-quality insulation solutions for residential properties. Our services include insulation removal, installation, and attic cleaning, focusing on energy efficiency and comfort. With a commitment to eco-friendly materials and practices, we ensure environmentally responsible solutions that enhance indoor air quality. Our experienced team assesses your specific needs and offers customized insulation options tailored to your home. We pride ourselves on delivering reliable service, customer satisfaction, and maintaining a clean work environment. Choose Attic Masters to improve your home’s energy efficiency and comfort while reducing energy costs for a healthier living space.

"i can only say good things about working with Attic masters. Great communication, They came on time, protected our floors and hallway from insulation dust, took pictures of the before and after for us so we can get the rebate. overall, very easy and stress free company to work with. I would definitely use again, it was a pleasure to work with true professionals."

Victor H on October 2021


"Good. Should up on time, did the job and left in about three hours. Got what we paid for."

Don S on September 2020

OWNER-OPERATED.

"Good. Should up on time, did the job and left in about three hours. Got what we paid for."

Don S on September 2020


Avatar for Hassler Heating & Air Conditioning

Hassler Heating & Air Conditioning

4.90(
63
)

Hassler Heating & Air Conditioning

4.90(
63
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Hassler Heating and Air Conditioning, Inc. provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency. We serve the counties of Alameda, Contra Costa and Marin. In retrofitting old systems as well as remodeling projects, Hassler will create a custom system that is visually and aesthetically matched to your home, giving it state-of-the-art technology (such as high efficiency and zoned systems) and a welcome look and feel. Hassler is aware that many homes’ original architectural structure may not accommodate the easy-install, pre-fab systems that many HVAC companies use. Whatever your home comfort needs are, Hassler uses equipment and materials above industry standards including energy efficient options in our installations of heating and cooling systems. Additionally, we install and repair, programmable thermostats, filtration systems, heat pumps, ductless split systems, ducting, water heaters, humidifiers, and more.

"Steve from Hassler was outstanding! He identified a problem we didn't know we had and fixed it, in addition to our annual inspection. He is very personable, too."

Linda L on August 2024

Hassler Heating and Air Conditioning, Inc. provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency. We serve the counties of Alameda, Contra Costa and Marin. In retrofitting old systems as well as remodeling projects, Hassler will create a custom system that is visually and aesthetically matched to your home, giving it state-of-the-art technology (such as high efficiency and zoned systems) and a welcome look and feel. Hassler is aware that many homes’ original architectural structure may not accommodate the easy-install, pre-fab systems that many HVAC companies use. Whatever your home comfort needs are, Hassler uses equipment and materials above industry standards including energy efficient options in our installations of heating and cooling systems. Additionally, we install and repair, programmable thermostats, filtration systems, heat pumps, ductless split systems, ducting, water heaters, humidifiers, and more.

"Steve from Hassler was outstanding! He identified a problem we didn't know we had and fixed it, in addition to our annual inspection. He is very personable, too."

Linda L on August 2024

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Insulation questions, answered by experts

While the ideal temperature for your garage is partially based on your preferences for a comfortable garage space, you'll still want to maintain a temperature between 40 degrees and 68 degrees Fahrenheit to protect your belongings and vehicles. If you are unable to maintain temperatures that fall within this range, then you may want to consider installing a heater in your garage to prevent temperatures from dropping below 40 degrees.

Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they’re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It’s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.

On average, attic insulation costs $1 to $3 per square foot, so for a 1,800-square-foot attic, you’d pay $1,800 to $5,400, including materials and labor. The cost can vary depending on what type of insulation you use, how many insulation layers you need, and whether you need to remove existing insulation first.

We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. Fiberglass insulation is dangerous, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.

Yes, cold walls could indicate that your home has poor insulation, especially if the walls are significantly colder than the air or other areas in the home. In most cases, cold walls are a sign that the heat produced by your furnace isn’t hanging around long enough to make the walls warm. If that’s the case, hire a local HVAC technician to take a closer look at your heating system.

The San Leandro, CA homeowners’ guide to insulation services

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