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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon34
    Verified insulation services reviews

Find Insulation pros in Harbor City

Avatar for Everguard Home Insulation Inc.

Everguard Home Insulation Inc.

4.92(
178
)
Approved Pro

Everguard Home Insulation Inc.

4.92(
178
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
67 years of experience

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


Avatar for Marathon Insulation

Marathon Insulation

5.00(
15
)
Approved Pro

Marathon Insulation

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

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


Avatar for Insulation Nation, LLC

Insulation Nation, LLC

5.00(
1
)
Approved Pro

Insulation Nation, LLC

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

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


"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


Avatar for Verity Baths

Verity Baths

4.99(
90
)

Verity Baths

4.99(
90
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

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


Avatar for Ivy Builders

Ivy Builders

4.97(
73
)

Ivy Builders

4.97(
73
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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


"We hired Four Seasons Remodeling and Design to replace a large deck at our home, and the results exceeded our expectations. They removed the old deck, installed new caissons for proper support, and rebuilt everything from the ground up. The crew was knowledgeable, organized, and respectful of our property. The final product is sturdy, well-built, and looks fantastic. I would definitely use them again for future projects."

Mahima K on December 2025

General contractor and design specialized in interior and exterior work

"We hired Four Seasons Remodeling and Design to replace a large deck at our home, and the results exceeded our expectations. They removed the old deck, installed new caissons for proper support, and rebuilt everything from the ground up. The crew was knowledgeable, organized, and respectful of our property. The final product is sturdy, well-built, and looks fantastic. I would definitely use them again for future projects."

Mahima K on December 2025


Avatar for Fidelity Builders and Design

Fidelity Builders and Design

4.96(
74
)

Fidelity Builders and Design

4.96(
74
)
Customers say: Terrific value
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

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


Avatar for P & M Mechanical Heating & Air Conditioning

P & M Mechanical Heating & Air Conditioning

4.95(
118
)

P & M Mechanical Heating & Air Conditioning

4.95(
118
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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

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Insulation questions, answered by experts

A-frame houses pose specific challenges that can make heating difficult. Their open concept design with high ceilings can lead to a colder lower floor and a warmer upper floor. A ceiling fan that pushes warm air down or pulls cold air up, depending on the season, can easily counteract temperature issues. Additionally, certain types of heating do better in these homes than others. For example, heated floors tend to be more practical and energy efficient than baseboard heating.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

Insulating your ducts offers several benefits, including:

  • Improved energy efficiency: Duct insulation prevents energy losses, reducing heating and cooling costs.

  • Cost savings: Lower energy bills make insulation a cost-effective investment.

  • Environmental benefits: Enhanced efficiency reduces your carbon footprint.

  • Consistent comfort: Insulated ducts help maintain a stable indoor temperature.

  • Better indoor air quality: Reduced allergens and pollutants improve air quality.

You don’t need to remove old insulation before adding new insulation. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.

Depending on the size, insulation condition, and removal method, it can take anywhere from four hours up to twenty hours. Therefore, be prepared to split the projects into phases, or leave it to a professional. Insulation is an intermediate project with various risk factors and can be challenging to someone unfamiliar with the process.

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.

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