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Verified Reviews for Insulation Service pros in Kapaa, HI

*The Angi rating for Insulation Service companies in Kapaa, HI 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 Kapaa, HI 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 06, 2025

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Avatar for H Drywall, LLC

H Drywall, LLC

1320 Kalani St
4.98(
63
)
•Approved Pro

H Drywall, LLC

1320 Kalani St
4.98(
63
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
120 local quotes requested

I have over 30 years experience in my trade, in business for over 20 of those years. Check are accepted. Time and material is available as well. 1099's accepted for tax purposes. I have insurance up to $1,000,000 for property damage. Lic # C-35480

"We needed some drywall work done and H Drywall was one of three companies I contacted for estimates. They were the middle bidder, but I was so impressed with Harry’s (the”H” in H Drywall) on-site visit and his comprehensive proposal that I decided to go with them. I was not disappointed because Harry keeps on top of things and is quick to reply to messages. A bonus was their online payment system which is really convenient and provided instant confirmation of a payment. What truly makes this company worthy of a 5-star rating though are its employees. John, the foreman, is easy to talk to and has so much experience in construction that he solved any problems or challenges that occurred. He always kept us informed of their progress and made sure we were happy with the work they were doing. The rest of the crew Stuart, Derek, Chris, and Evan were all friendly, courteous (always aware that we still lived in the home), and did excellent work. Drywall replacement is messy, but these guys covered everything including the floors and they vacumed daily. The drywall removal uncovered some additional work that needed to be done and H Drywall provided a reasonable estimate to fix the problem. We also had them paint the living room, dining room, and kitchen areas. Thank you Evan for helping us choose the right color! This company, and I mean the whole company, definitely deserves a 5-star rating."

Ron N on March 2024

I have over 30 years experience in my trade, in business for over 20 of those years. Check are accepted. Time and material is available as well. 1099's accepted for tax purposes. I have insurance up to $1,000,000 for property damage. Lic # C-35480

"We needed some drywall work done and H Drywall was one of three companies I contacted for estimates. They were the middle bidder, but I was so impressed with Harry’s (the”H” in H Drywall) on-site visit and his comprehensive proposal that I decided to go with them. I was not disappointed because Harry keeps on top of things and is quick to reply to messages. A bonus was their online payment system which is really convenient and provided instant confirmation of a payment. What truly makes this company worthy of a 5-star rating though are its employees. John, the foreman, is easy to talk to and has so much experience in construction that he solved any problems or challenges that occurred. He always kept us informed of their progress and made sure we were happy with the work they were doing. The rest of the crew Stuart, Derek, Chris, and Evan were all friendly, courteous (always aware that we still lived in the home), and did excellent work. Drywall replacement is messy, but these guys covered everything including the floors and they vacumed daily. The drywall removal uncovered some additional work that needed to be done and H Drywall provided a reasonable estimate to fix the problem. We also had them paint the living room, dining room, and kitchen areas. Thank you Evan for helping us choose the right color! This company, and I mean the whole company, definitely deserves a 5-star rating."

Ron N on March 2024

NS Air Conditioning Inc

PO Box 894164
5.00(
4
)

NS Air Conditioning Inc

PO Box 894164
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in residential and commercial Ventilation and Air Conditioning services, repairs, & installation. Call or click for your quote today!

"Recently installed an AC system on a property. NS Air is very reasonable and very professional. I highly recommend this company. They do outstanding work."

Keoki K on March 2024

We specialize in residential and commercial Ventilation and Air Conditioning services, repairs, & installation. Call or click for your quote today!

"Recently installed an AC system on a property. NS Air is very reasonable and very professional. I highly recommend this company. They do outstanding work."

Keoki K on March 2024

Building Science LLC

91-1113 Waikapoo St
5.00(
6
)

Building Science LLC

91-1113 Waikapoo St
5.00(
6
)
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Thanks for visiting our page! We are happy to help with your home project. ABOUT US: At Building Science LLC, our goal is to not only help you build your dream home or renovate your property, but to make the process easy for you. We are a full-service design/build company with a wide range of experience. We can help you with all phases of new home construction or remodeling. We believe the whole house matters and deliver on all phases and components of a project. Our excellent reputation and long list of satisfied clients attest to our superior craftsmanship, attention to detail, clear communication, honesty and integrity. Just ask for our client reference list. Let's discuss your ideas! Check us out on facebook at https://www.facebook.com/BuildingSciencellc/ and also our website at http://buildingsciencehawaii.com

Thanks for visiting our page! We are happy to help with your home project. ABOUT US: At Building Science LLC, our goal is to not only help you build your dream home or renovate your property, but to make the process easy for you. We are a full-service design/build company with a wide range of experience. We can help you with all phases of new home construction or remodeling. We believe the whole house matters and deliver on all phases and components of a project. Our excellent reputation and long list of satisfied clients attest to our superior craftsmanship, attention to detail, clear communication, honesty and integrity. Just ask for our client reference list. Let's discuss your ideas! Check us out on facebook at https://www.facebook.com/BuildingSciencellc/ and also our website at http://buildingsciencehawaii.com

Insulation questions, answered by experts

An insulated garage benefits from roof vents to ensure proper ventilation and prevent moisture buildup. Insulation can trap moisture in the garage, especially during temperature fluctuations, and roof vents play a crucial role in expelling the moisture in the air. Including roof vents promotes air circulation, preventing condensation and enhancing overall air quality.

The best time to insulate a garage ceiling is when the weather is mild and dry. That means it shouldn’t be stormy, snowy, or raining, and the temperatures should be comfortable. Ideally, you’ll insulate your garage ceiling in the fall, before winter hits. Not only will you be the most comfortable, but you’ll also likely see the greatest energy savings heading into the colder weather with a newly insulated garage.

Fiberglass is the best insulation for HVAC ducting because it's inexpensive, widely available, versatile, and long-lasting. Fiberglass also offers acoustic insulation in addition to thermal insulation, which can contribute to a more peaceful home environment. You can use other materials like mineral wool, but fiberglass is the industry standard.

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.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

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The Kapaa, HI 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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