How much does drywall insulation cost?

• <div><p><a href="https://www.angi.com/articles/how-much-does-insulation-cost.htm">Drywall insulation costs</a> around <b>$1,800</b>, on average, but prices can range from <b>$500 to $4,500</b>, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:</p><ul><li><p>Square footage of insulation</p></li><li><p>Type of insulation </p></li><li><p>Climate in your area and the insulation R-value required</p></li><li><p>Whether or not your walls are already finished</p></li><li><p>Accessibility of the area </p></li><li><p>Whether or not you need old insulation removed first</p></li></ul><p></p></div>

Get matched with top insulation pros in Ewa Gentry, HI

Q: Is it OK to put plywood over insulation in an attic?

• <div><p>Installing sheets of plywood over <a href="https://www.angi.com/articles/attic-insulation-guide.htm">attic insulation</a> is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air&mdash;so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home. </p><p>It&rsquo;s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you&rsquo;ll need to install a subfloor before putting plywood over insulation in your attic.</p></div>

Q: Can pipe insulation reduce plumbing noises?

• <div><p>Yes, insulating your pipes can reduce plumbing noises because it dampens vibrations and reduces the transmission of sound, making your home a quieter place. So if you've ever been annoyed by the sounds of water rushing through your pipes or the clanging noises when someone turns on the faucet, insulation can help.</p></div>

Q: How long does a vapor barrier last?

• <div><p>A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It&rsquo;s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.</p></div>

Q: Is it worth it to insulate basement walls?

• <div><p>Insulating your basement walls offers numerous advantages that make the project well worth it. By adding insulation, you can reduce the chances of moisture damage to the house's structure and lower the odds of mold growth. You'll also add comfort to the space by reducing temperature swings and increasing your home's energy efficiency, potentially reducing your energy bills to earn your investment back.</p></div>

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Verified Reviews for Insulation Service pros in Ewa Gentry, HI

*The Angi rating for Insulation Service companies in Ewa Gentry, 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 Ewa Gentry, 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 December 10, 2025

Reviewed in December 2025
The job was done in 3 days & looks good. I just hope the moisture buildup doesn’t occur again in another part of my.townhouse.
Reeves Remodeling and Restore
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Reviewed in September 2025
Awesome job! Work was done to repair a leaking hot water line. Hot water heater was drained and moved, concrete chipped to access the piping. Once piping was replaced with new copper water line drywall was repaired good as new. Brison works efficiently, he?s courteous, and leaves the area...
Brison's Plumbing, Inc.
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Reviewed in July 2025
Shout out to Kevin from Air Masters. After a preliminary estimate back in April, he returned to repair my Mitsubishi AC unit. He wasted no time in laying down plastic sheeting to protect the floor and wall. He immediately began breaking the down the unit and replacing the evaporator coil. He...
Air Masters Inc
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Reviewed in March 2025
Installed 2 window air conditioners including building new frames. Also installed ceiling fan in cathedral ceiling. Very personable.
Kekoa Alo
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Reviewed in October 2024
Not only did Josh come to my site for an estimate he advocated towards a HOA who was not wanting me to put in an EV personal Charger. The companyâ s owner reached out to me and was helpful explaining their licensing and insurance documentations. After explaining the condo garage not being...
Paumalu Electric, Inc.
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Reviewed in October 2023
Ryan and his crew are total professionals. Skilled in every aspect of what was needed to complete a full renovation of our home. From the beginning to the end, Ryan was great at listening to my vision and any concerns along the way and responded in a timely and efficient fashion. He stayed...
JRP Construction
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Reviewed in August 2022
Darrell Ing of Hawaiian Energy Systems Inc was super helpful. He did not try to sell me something I didn't need and installed a standard water heater based on the size of our household. Work was done in a timely manner and Darrell and his crew were professional and efficient. I plan to use them...
Hawaiian Energy Systems, Inc.
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Reviewed in September 2021
GUY REPAIRED TWO ROOF LEAKS FOR US. HE SHOWED UP THE NEXT DAY. HE WAS METICULOUS WITH PROTECTING OUR FURNISHINGS FROM DUST AND DAMAGE. HE DID AN EXCELLENT JOB AND WE HIGHLY RECCOMEND HIM!
McKeague Drywall
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Reviewed in April 2021
We're so glad that we found Stone Cold Air for our Central Air Replacement install. Their professionalism, timelines and service was top notch. After 3 weeks with no ac, they installed a brand new Daikin system in 2 days. The Daikin unit is sleek and takes up half the space as our old unit. The...
Stone Cold Air, LLC
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Reviewed in March 2021
Robert and his team showed up on time and completed all the work in a truly professional manner. The prices he charged were very reasonable. I would gladly use his services again for any future drywall or insullation projects in our home.
RA Acoustic, Insulation and Drywall
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Find Insulation pros in Ewa Gentry

H Drywall, LLC

5.0(

)

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Ewa Gentry, HI and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"The work was clean and the owner as well as, all of the employees were professional and friendly. The only criticism would be the failure to clean up the job site. They did haul most of the rubbish away but the employees left chunks of drywall mud and screws on the floor of the garage, empty bottles in the yard, and leftover materials, fiberglass insulation, were thrown carelessly on top of my personal belongings. Despite the messiness, I would hire this company again. ?"

Recommended by98%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Ewa Gentry, HI and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."

Recommended by65%of homeowners

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Ewa Gentry, HI and surrounding areas

Credit card accepted

Aloha we are a small business raised in Oahu. We thrive off the passion of delivering a clean & cozy home. We specialize in cleaning everything from bathrooms to kitchens to floors & carpet. We leave you feeling fresh and happy with the results of a sanitized work or living space. We bring our own chemical solutions, rags, vacuums, mops, brooms and other tools needed to clean your home efficiently and swiftly. We hope you give us a chance to show you what we are capable of. Thank you for your trust in our growing business. Mahalo

Recommended by100%of homeowners

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Statewide General Contracting & Construction, Inc.

4.0(

)

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Ewa Gentry, HI and surrounding areas

In business since 2004

Free estimates

Credit card accepted

At Statewide General Contracting & Construction, Inc., we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Feel free to book online with us today!

Response time1 day

Recommended by100%of homeowners

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Insulation questions, answered by experts

Installing sheets of plywood over attic insulation is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air—so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home.

It’s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you’ll need to install a subfloor before putting plywood over insulation in your attic.

Yes, insulating your pipes can reduce plumbing noises because it dampens vibrations and reduces the transmission of sound, making your home a quieter place. So if you've ever been annoyed by the sounds of water rushing through your pipes or the clanging noises when someone turns on the faucet, insulation can help.

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

Drywall insulation costs around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:

Square footage of insulation
Type of insulation
Climate in your area and the insulation R-value required
Whether or not your walls are already finished
Accessibility of the area
Whether or not you need old insulation removed first

Insulating your basement walls offers numerous advantages that make the project well worth it. By adding insulation, you can reduce the chances of moisture damage to the house's structure and lower the odds of mold growth. You'll also add comfort to the space by reducing temperature swings and increasing your home's energy efficiency, potentially reducing your energy bills to earn your investment back.

The Ewa Gentry, HI homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

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Jul 15, 2026Jul 15, 2026
Should You Remove Old Insulation Before Adding New Insulation?
Removing old insulation may be necessary for upgrading your insulation. Keep reading to see if you should remove old insulation before adding new insulation.
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•
May 2, 2026May 2, 2026
How to Insulate Plaster Walls in a Home
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