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Verified Reviews for Insulation Service pros in Honolulu, HI

*The Angi rating for Insulation Service companies in Honolulu, 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 Honolulu, 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

Find Insulation pros in Honolulu

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
115 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

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Building Energy Group

957b Kamenani Road
No reviews yet

Building Energy Group

957b Kamenani Road
No reviews yet
26 years of experience

Skylights and Solar Hot Water sales, service and installation. Building Energy Group is on the Hawaii Energy approved list of installers and is a Velux 5-star approved installation company.

Skylights and Solar Hot Water sales, service and installation. Building Energy Group is on the Hawaii Energy approved list of installers and is a Velux 5-star approved installation company.

ECO Construction services

2855 Booth Rd
No reviews yet

ECO Construction services

2855 Booth Rd
No reviews yet
26 years of experience

SR Construction- With 20 years experience fully tooled, I offer Carpentry, Contracting & Project Management services. General Contracting with history of building rapport & references from colleagues. I have knowledge and skill in the areas of project evaluation & design, proposals, contracts. I am well versed in proper application of state codes. Strong on island references are available by request.

SR Construction- With 20 years experience fully tooled, I offer Carpentry, Contracting & Project Management services. General Contracting with history of building rapport & references from colleagues. I have knowledge and skill in the areas of project evaluation & design, proposals, contracts. I am well versed in proper application of state codes. Strong on island references are available by request.

Showing 1-10 of 26
Insulation questions, answered by experts

You don’t need to staple insulation, as your drywall and studs will hold it into place. But if you already have a staple gun and staples lying around, it can help keep the product in place and avoid any shifting. But, most experts agree it’s an unnecessary step.

If you’re adding a vapor barrier, you will need to staple that in place.

If you have access to the foundation walls, adding spray foam insulation to your existing unfinished basement or crawl space is straightforward. Replacing existing insulation in your unfinished attic space is possible after removing the old insulation. However, spray foam insulating an existing wall after the drywall is in place isn’t possible unless you remove most of the drywall.

Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and caulking your windows to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.

It may seem that doing an insulating project completely as a DIY task would be the most cost-effective way to accomplish it. However, professionally trained installers are experts at determining precisely what each garage needs in terms of effective insulation. Hiring an insulation pro and using batt insulation for the bulk of the materials will provide the best results for the least amount of money.

Spreading tin foil over your windows works similarly to radiant barrier insulation, but not as well. It will reflect some of the sunlight that would otherwise come through the glass and warm up the inside of your home, so it might help a little to keep your home cool in the summer. However, the appearance isn’t preferable to blinds or drapes that can offer the same benefits. You might also consider tinting your windows instead, which is a more aesthetically pleasing change that can still block a good portion of the solar heat coming through your windows.

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The Honolulu, HI homeowners’ guide to insulation services

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