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Verified Reviews for Insulation Service pros in Harbor City, CA
*The Angi rating for Insulation Service companies in Harbor City, 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 Harbor City, 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 December 15, 2025
Find Insulation pros in Harbor City

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

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

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
B & J Plastering
B & J Plastering
Additional service areas - portions of South LA,All Los Angeles. Award winning.
"Perfect. Brad did the work with skill and efficiency. Great job."
Paul & Lisa R on May 2018
Additional service areas - portions of South LA,All Los Angeles. Award winning.
"Perfect. Brad did the work with skill and efficiency. Great job."
Paul & Lisa R on May 2018

Verity Baths
Verity Baths
Remodeling as it should be. Ted and Tony have one vision in mind; a customer focused, hands-on approach to home remodeling. From the early stages of a concept to the final details of construction, our goal is to create a positive experience. We understand that no two customers are exactly alike, so we take the time to create solutions that appeal to your personal tastes and fit your budget. We offer two basic approaches to bathroom remodeling – Semi Custom and Client Inspired designs. Check out our website for further information.
"Look no further than Verity Build if you want a beautiful kitchen remodel. Verity just completed our kitchen remodel and we couldn’t be more pleased working with this company. The owners Ted & Tony are exceptional to work with. Ted designed our kitchen and came up with many wonderful ways to effectively use our space. He is patient and listens carefully to what you want, making excellent suggestions along the way. He accompanied us while we shopped to choose the appliances needed as well as the tile, backsplash & countertops. His 3D renderings showed us exactly what the new kitchen would look like, being able to move & change cabinets to look and work best. When the project started, Tony was onsite to make sure it happened according to the plan. Tony closely monitored the crew and kept in great communication with us throughout the process. The Verity crew is topnotch and does high quality work while always being professional, courteous and friendly. The worksite was kept organized and cleaned up each day for the next phase. The project was completed on time and Ted, Tony, and office manager Jennifer were readily available to answer questions and follow-up on any detail that needed attention. We look forward to working with the Verity crew again when we are ready to move forward on our bathroom remodels."
Sandy S on May 2018
Remodeling as it should be. Ted and Tony have one vision in mind; a customer focused, hands-on approach to home remodeling. From the early stages of a concept to the final details of construction, our goal is to create a positive experience. We understand that no two customers are exactly alike, so we take the time to create solutions that appeal to your personal tastes and fit your budget. We offer two basic approaches to bathroom remodeling – Semi Custom and Client Inspired designs. Check out our website for further information.
"Look no further than Verity Build if you want a beautiful kitchen remodel. Verity just completed our kitchen remodel and we couldn’t be more pleased working with this company. The owners Ted & Tony are exceptional to work with. Ted designed our kitchen and came up with many wonderful ways to effectively use our space. He is patient and listens carefully to what you want, making excellent suggestions along the way. He accompanied us while we shopped to choose the appliances needed as well as the tile, backsplash & countertops. His 3D renderings showed us exactly what the new kitchen would look like, being able to move & change cabinets to look and work best. When the project started, Tony was onsite to make sure it happened according to the plan. Tony closely monitored the crew and kept in great communication with us throughout the process. The Verity crew is topnotch and does high quality work while always being professional, courteous and friendly. The worksite was kept organized and cleaned up each day for the next phase. The project was completed on time and Ted, Tony, and office manager Jennifer were readily available to answer questions and follow-up on any detail that needed attention. We look forward to working with the Verity crew again when we are ready to move forward on our bathroom remodels."
Sandy S on May 2018

Ivy Builders
Ivy Builders
What sets Ivy Builders apart is quality and personal care. We want to make sure that your project is done exactly the way you want it to - we treat every project, from small jobs to huge remodels, with the utmost care and detail orientation.
"We used Ivy Builders to remodel a 30 year-old bathroom in our 60 year-old house. Nathan and crew were outstanding. The job was on schedule and on budget. Every hiccup, bump and oversight were handled without drama. Nathan knows his business and as he told me one day, "You just plan for there to be problems and you handle it, happens on every project." We could not be happier with the job, would highly recommend!"
Jillian P on May 2024
What sets Ivy Builders apart is quality and personal care. We want to make sure that your project is done exactly the way you want it to - we treat every project, from small jobs to huge remodels, with the utmost care and detail orientation.
"We used Ivy Builders to remodel a 30 year-old bathroom in our 60 year-old house. Nathan and crew were outstanding. The job was on schedule and on budget. Every hiccup, bump and oversight were handled without drama. Nathan knows his business and as he told me one day, "You just plan for there to be problems and you handle it, happens on every project." We could not be happier with the job, would highly recommend!"
Jillian P on May 2024
"Professional Builders & Remodeling is a great company! I hired them for the first time but certainly not the last. I went with them on my kitchen remodel and they did a perfect job! They were always on time, professional, honest, and they made the whole remodeling process easy and simple. The kitchen turned out great, it's very beautiful and I love it!"
Jack M on July 2023
License - #B-800769.
"Professional Builders & Remodeling is a great company! I hired them for the first time but certainly not the last. I went with them on my kitchen remodel and they did a perfect job! They were always on time, professional, honest, and they made the whole remodeling process easy and simple. The kitchen turned out great, it's very beautiful and I love it!"
Jack M on July 2023

4 Seasons Remodeling & Design Inc.
4 Seasons Remodeling & Design Inc.
General contractor and design specialized in interior and exterior work
"We worked with 4 Season Remodeling & Design for our hardscape remodel, and they did an amazing job! The crew was friendly, efficient, and clearly knew what they were doing. Our patio and walkway came out better than we imagined — clean lines, great design, and quality materials. They also kept us updated every step of the way, which made the whole experience stress-free. Definitely a company we’ll call again for future projects."
Shanna V on November 2025
General contractor and design specialized in interior and exterior work
"We worked with 4 Season Remodeling & Design for our hardscape remodel, and they did an amazing job! The crew was friendly, efficient, and clearly knew what they were doing. Our patio and walkway came out better than we imagined — clean lines, great design, and quality materials. They also kept us updated every step of the way, which made the whole experience stress-free. Definitely a company we’ll call again for future projects."
Shanna V on November 2025

Fidelity Builders and Design
Fidelity Builders and Design
We are fully insured and bonded Home remodeling company. We have been in business for more than 8 years now. We are serving all 3 counties: Los Angeles County Ventura County Orange County. We are not electrical specialist. We are general contractors specializing in room additions, kitchen and bathroom remodeling, much more.
"Tal Mechaly was extremely useful when we hired him and his people to design and rebuild our new kitchen and laundry room. Tal helped us select the new stunning marble slab for the new island that he implemented in the design and the gorgeous chandelier above it because the island that he designed for us included table as well. Tal Mechaly was amazing at selecting all the paint colors combinations and with his design… he was able to pull it all together as one piece of art kitchen. Tal Mechaly was very easygoing person to work with, with excellent creativity skills and his thinking outside of the box ability was beyond believes."
Gilbert V on September 2018
We are fully insured and bonded Home remodeling company. We have been in business for more than 8 years now. We are serving all 3 counties: Los Angeles County Ventura County Orange County. We are not electrical specialist. We are general contractors specializing in room additions, kitchen and bathroom remodeling, much more.
"Tal Mechaly was extremely useful when we hired him and his people to design and rebuild our new kitchen and laundry room. Tal helped us select the new stunning marble slab for the new island that he implemented in the design and the gorgeous chandelier above it because the island that he designed for us included table as well. Tal Mechaly was amazing at selecting all the paint colors combinations and with his design… he was able to pull it all together as one piece of art kitchen. Tal Mechaly was very easygoing person to work with, with excellent creativity skills and his thinking outside of the box ability was beyond believes."
Gilbert V on September 2018

P & M Mechanical Heating & Air Conditioning
P & M Mechanical Heating & Air Conditioning
We do not sub-contract. Our billing procedures are that once job is complete, payment in full is required. We do accept Master Card, Visa and checks. Financing is available; ask for details. For any special promotions, see our website www.pmmech.com. Additional DBA - P&M Mechanical Heating. Additional contact name - Paul Mingham.
"It went very well. I had a wall furnace so P & M installed a heater in the hall ceiling and an air conditioner. New ducts needed to be added since I had never had an air conditioner in the house before. They did a very good job. They pulled the permits and all of the work was approved."
Joanna S on July 2020
We do not sub-contract. Our billing procedures are that once job is complete, payment in full is required. We do accept Master Card, Visa and checks. Financing is available; ask for details. For any special promotions, see our website www.pmmech.com. Additional DBA - P&M Mechanical Heating. Additional contact name - Paul Mingham.
"It went very well. I had a wall furnace so P & M installed a heater in the hall ceiling and an air conditioner. New ducts needed to be added since I had never had an air conditioner in the house before. They did a very good job. They pulled the permits and all of the work was approved."
Joanna S on July 2020
FAQs for insulation service projects in Harbor City, CA
When choosing a professional insulation installer, consider asking these questions to determine the best fit.
Will you address air leaks in my house?
Can you provide an R-value (heat resistance) fact sheet?
What kind of insulation will work best for my home?
How do you handle signs of a water leak?
Are you licensed and insured?
Can you provide customer references?
The best type of insulation for your home depends on what you need, so the answer will depend on your specific situation. If you’re building a house, structural panels are easy to install during the building process in addition to being the most energy efficient type. If you live in a warm climate, reflective insulation may benefit you more as it costs less than other insulation types. And for standard attics, loose-fill, spray foam, or blown-in insulation work well.
If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.
In some cases, you may not have enough insulation to properly regulate your home’s temperature. Watch for a few signs your home needs more insulation, such as:
High heating and cooling bills
Uncomfortable room temperatures
Ice dams on the edge of your roof
Roof leaks
Cold floors and walls
Freezing pipes
Temperature fluctuations
Visibly low insulation
Noise problems
Pest problems
On average, insulating an attic costs about $2,500, ranging from $1,500 to $3,500, depending on the insulation type, amount, and your attic’s accessibility. Additional cost factors include sealing air leaks, removal or replacement of insulation, and inspections. Types of insulation include:
Blown-in: $1–$4 per square foot
Spray foam: $2–$5 per square foot
Batt: $2–$4 per square foot
Structural insulated panels: $4–$7 per square foot
Loose-fill: $2–$5 per square foot
Reflective: $0.50–$1.50 per square foot
The Harbor City, CA homeowners’ guide to insulation services
From average costs to expert advice, get all the answers you need to get your job done.

Wool insulation offers a higher R-value than fiberglass but is more expensive. Use this guide to estimate wool insulation costs for your home.

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.

The cost of blown-in insulation costs varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.

If you’re wondering what blown-in insulation is, keep reading to discover everything you need to know about this type of insulation for your home.

What's keeping your home warm? Learn the differences between cellulose vs. vermiculite insulation and why it matters.

Learn the pros and cons of cellulose insulation to help you make an informed decision about whether it's the right choice for your home.
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