
Get matched with top insulation pros in Signal Hill, CA
There are 26 highly-rated local insulation pros.
Need a pro for your insulation service project in Signal Hill, CA?
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Verified Reviews for Insulation Service pros in Signal Hill, CA
*The Angi rating for Insulation Service companies in Signal Hill, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Signal Hill, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on October 04, 2025
Find Insulation pros in Signal Hill

Guardian Home Energy
Guardian Home Energy
Whole Home Energy Efficiency Weatherization and Insulation Company. We specialize in insulating and sealing houses to create drastic comfort, health and savings differences. We specialize in Comprehensive Home Energy Audits, Attic Clean Outs, Attic/ interior Air-Sealing, Attic Insulation, Attic Ventilation, Radiant Barrier, Whole House Fans, Duct Replacement, Duct Sealing, Drill and Fill Wall Insulation with Full Texture and Paint Match, Crawlspace Insulation/ Vapor Barriers.
"This was the best experience with this company. Katherine was very professional And knowledgeable. The team that showed up to install the installation did a wonderful job. Calvin came back the following week and touched up the wall. Calvin was very professional. I appreciate all the work they did. I can already tell a difference with the air conditioning. Can't wait to experience this winter. And the noise level. Between my condo and the other condo was decreased by the insulation in the wall. I will recommend them to anyone that asked me about Installation."
Carol A on September 2025
Whole Home Energy Efficiency Weatherization and Insulation Company. We specialize in insulating and sealing houses to create drastic comfort, health and savings differences. We specialize in Comprehensive Home Energy Audits, Attic Clean Outs, Attic/ interior Air-Sealing, Attic Insulation, Attic Ventilation, Radiant Barrier, Whole House Fans, Duct Replacement, Duct Sealing, Drill and Fill Wall Insulation with Full Texture and Paint Match, Crawlspace Insulation/ Vapor Barriers.
"This was the best experience with this company. Katherine was very professional And knowledgeable. The team that showed up to install the installation did a wonderful job. Calvin came back the following week and touched up the wall. Calvin was very professional. I appreciate all the work they did. I can already tell a difference with the air conditioning. Can't wait to experience this winter. And the noise level. Between my condo and the other condo was decreased by the insulation in the wall. I will recommend them to anyone that asked me about Installation."
Carol A on September 2025

Insulation Nation, LLC
Insulation Nation, LLC
Hi there from Dustin, owner of Insulation Nation! Here in So Cal, we join our Colorado office in providing personalized high touch experiences for our customers. I work with our customers directly every step of the way from evaluation, education and review of options, through the project and to inspection of the results. We've never seen less than a 5 star review. Small businesses live and die by reviews and we are ready to earn 5 stars on your project! Thank you! C-02 Insulation and Acoustic #: 1127373 EXP: 10/31/2026
"We had Insulation Nation (Dustin) come to our house to look at our attis insulation; our house was built in the late 70's and I had added more blown-in insulation many years ago. We decided on adding 8" of blown-in insulation to reduce our heating/cooling cost and to reduce the cycling of our HVAC system. They did a wonderful job of sealing any attic leaks, covers for our canned lighting fixtures, built a dam around our whole house fan, added baffles around our soffits, and added the insulation. Nicely done and a professional job. Would recommend using their service."
Robert S on February 2025
Hi there from Dustin, owner of Insulation Nation! Here in So Cal, we join our Colorado office in providing personalized high touch experiences for our customers. I work with our customers directly every step of the way from evaluation, education and review of options, through the project and to inspection of the results. We've never seen less than a 5 star review. Small businesses live and die by reviews and we are ready to earn 5 stars on your project! Thank you! C-02 Insulation and Acoustic #: 1127373 EXP: 10/31/2026
"We had Insulation Nation (Dustin) come to our house to look at our attis insulation; our house was built in the late 70's and I had added more blown-in insulation many years ago. We decided on adding 8" of blown-in insulation to reduce our heating/cooling cost and to reduce the cycling of our HVAC system. They did a wonderful job of sealing any attic leaks, covers for our canned lighting fixtures, built a dam around our whole house fan, added baffles around our soffits, and added the insulation. Nicely done and a professional job. Would recommend using their service."
Robert S on February 2025

Everguard Home Insulation Inc.
Everguard Home Insulation Inc.
Everguard Insulation has been a family business since 1959. Today, over 65 years and three generations later, we're proud of our contribution to the community, economy and environment. We help people save money on their utility bills while also enjoying a more comfortable home in both summer and winter. We also take pride in helping the environment and doing our part towards energy conservation and making the planet a greener place for generations to come. Additional phone numbers 818.348.1460 & 310.274.5644 - Additional DBA - Home Insulation Products. Award winning.
"We were very with the entire process! They took time to cover everything and the first and second team of workers were polite and careful in the work they performed. Aldi the clean up afterwards was excellent as well. We were super happy and would highly recommend them to anyone thinking of replacing there insulation!!"
Leo C on May 2025
Everguard Insulation has been a family business since 1959. Today, over 65 years and three generations later, we're proud of our contribution to the community, economy and environment. We help people save money on their utility bills while also enjoying a more comfortable home in both summer and winter. We also take pride in helping the environment and doing our part towards energy conservation and making the planet a greener place for generations to come. Additional phone numbers 818.348.1460 & 310.274.5644 - Additional DBA - Home Insulation Products. Award winning.
"We were very with the entire process! They took time to cover everything and the first and second team of workers were polite and careful in the work they performed. Aldi the clean up afterwards was excellent as well. We were super happy and would highly recommend them to anyone thinking of replacing there insulation!!"
Leo C on May 2025

Insulation Labs
Insulation Labs
Attic & Crawlspace & Solar Energy Specialists. The Insulation Labs team has unmatched customer service and attic/solar experience. Pooling years of knowledge and expertise together in order to provide you with the best service possible. Our team is friendly and helpful, explaining any jargon to you in a concise and understandable manner. It is important to work with a team that has a good reputation in your local community; Insulation Labs is known for its affordability, professionalism, and world-class customer service in the greater Los Angeles area. We have earned a reputation as one of the top attic cleaning and insulation replacement services in greater Los Angeles, continually furthering our stellar reputation and customer satisfaction. We provide our customers with home solutions that are tailored to them, allowing them to improve their attics, crawl spaces, and their home's energy efficiency in no time!
"The guys were really neat. They set up a tunnel from the attic to the back door. There really wasn't much to clean up after. They vacuumed out the old insullation and laid in new. It's hard to say if they did a good job in the attic, because I don’t know what its supposed to look like. They were in the attic almost about 7 hours. The only issue was that they said the senior discount on their Angie's list page must be old so they didn't honor it."
Pamela D on November 2024
Attic & Crawlspace & Solar Energy Specialists. The Insulation Labs team has unmatched customer service and attic/solar experience. Pooling years of knowledge and expertise together in order to provide you with the best service possible. Our team is friendly and helpful, explaining any jargon to you in a concise and understandable manner. It is important to work with a team that has a good reputation in your local community; Insulation Labs is known for its affordability, professionalism, and world-class customer service in the greater Los Angeles area. We have earned a reputation as one of the top attic cleaning and insulation replacement services in greater Los Angeles, continually furthering our stellar reputation and customer satisfaction. We provide our customers with home solutions that are tailored to them, allowing them to improve their attics, crawl spaces, and their home's energy efficiency in no time!
"The guys were really neat. They set up a tunnel from the attic to the back door. There really wasn't much to clean up after. They vacuumed out the old insullation and laid in new. It's hard to say if they did a good job in the attic, because I don’t know what its supposed to look like. They were in the attic almost about 7 hours. The only issue was that they said the senior discount on their Angie's list page must be old so they didn't honor it."
Pamela D on November 2024

Marathon Insulation
Marathon Insulation
Hi my name is Jonathan owner of Marathon Insulation. I started working for a reputable company 13 years ago, just this year I decided to start my own business. I have all the knowledge and hands on experience to answer any of your insulation questions.
"Great very pleased"
Betsy W on December 2023
Hi my name is Jonathan owner of Marathon Insulation. I started working for a reputable company 13 years ago, just this year I decided to start my own business. I have all the knowledge and hands on experience to answer any of your insulation questions.
"Great very pleased"
Betsy W on December 2023
Yeamons Communications and technologies
Yeamons Communications and technologies
I have great knowledge of Low Voltage Cctv access control and a phone installations work all high-end homes and hotels in Southern California
I have great knowledge of Low Voltage Cctv access control and a phone installations work all high-end homes and hotels in Southern California
In wall assemblies
In wall assemblies
We are 3 brothers that take pride in our trade. We are certified spray foam, install batts of insulation. Also have experience in drywall installation. From commercial to residential we have been involved in both areas of work. Specialty is interior systems. Over 30 years of experience between the 3 of us.
We are 3 brothers that take pride in our trade. We are certified spray foam, install batts of insulation. Also have experience in drywall installation. From commercial to residential we have been involved in both areas of work. Specialty is interior systems. Over 30 years of experience between the 3 of us.
american duct pros
american duct pros
your health and quality of your air duct system is our commitment . we specialize in air duct cleaning and analyzing the duct efficiency. we will clean it and if we see anything wrong we will give you the right suggestion how to solve it. we are family business for about 40 years our special is air duct system and dryer vent cleaning for $249.00
your health and quality of your air duct system is our commitment . we specialize in air duct cleaning and analyzing the duct efficiency. we will clean it and if we see anything wrong we will give you the right suggestion how to solve it. we are family business for about 40 years our special is air duct system and dryer vent cleaning for $249.00
Evolution Contracting
Evolution Contracting
Everything that has to do with a house, including maintenance changes, fixtures, installation and demolition I can do. Not only that I have experience with landscaping And I carry all the equipment that is necessary to complete a job that is Critical or easy to do.
"Great, he arrived on time, got to work immediately, and cleaned up when he was done. Great job Ulesis!"
Tim D on December 2024
Everything that has to do with a house, including maintenance changes, fixtures, installation and demolition I can do. Not only that I have experience with landscaping And I carry all the equipment that is necessary to complete a job that is Critical or easy to do.
"Great, he arrived on time, got to work immediately, and cleaned up when he was done. Great job Ulesis!"
Tim D on December 2024
Calebs Imagination
Calebs Imagination
Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!
Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!
The Signal Hill, CA homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
Trying to calculate how much spray foam insulation costs? Our in-depth guide breaks down pricing by type, amount, and where you install it.
The cost to insulate a basement varies based on materials, size, and other factors, as well as how much of the work you wish to perform yourself.
Most people don’t know the whys and hows of home insulation; they just know their house is too hot. Ready to cool down? Learn why you need proper insulation in your home.
Knowing how to calculate the R-value of insulation and other materials is essential for determining whether you have too little or too much of it.
What's keeping your home warm? Learn the differences between cellulose vs. vermiculite insulation and why it matters.
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