Can I use canned spray foam as insulation?

• <div><p>Canned spray foam has an R-value of R-3.7 per inch. However, it’s not great for use as insulation. Also known as single-component spray foam, it doesn’t expand as much as two-part types that work for insulating the whole house. Save the canned foam for gaps around doors and windows.</p></div>

How do you keep an outdoor spigot from freezing?

• <div><p>An outdoor spigot needs some attention before the temperatures begin to drop. Using an insulative cover is just one part of minimizing a frozen spigot and pipes. You’ll also need to shut off the water and drain the spigot, which leaves as little water as possible in the pipes to prevent freezing.</p></div>

Get matched with top insulation pros in Waipahu, HI

Q: What's the best insulation for a garage?

• <div><p>Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation. </p></div>

Q: Will a dehumidifier stop condensation on ductwork?

• <div><p>A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won&rsquo;t solve the problem. </p></div>

Q: Does open-cell foam need a vapor barrier?

• <div><p>Because of the moisture concern, open-cell foam requires a vapor barrier. The barrier protects against high humidity and moisture exposure in rooms such as basements, bathrooms, or exterior walls. It wouldn't be necessary in dry interior spaces.</p></div>

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Verified Reviews for Insulation Service pros in Waipahu, HI

*The Angi rating for Insulation Service companies in Waipahu, 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 Waipahu, 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 September 02, 2026

Reviewed in September 2026
They installed central air a couple of years ago. A few months in, the attic unit started leaking through the ceiling, lights, and ceiling fans. They came out, claimed it wasn&#39;t their fault, and we spent a couple thousand dollars for the fix. I said I was done with them, but Damon seemed...
Hawaiian Pro A/C
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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 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 May 2022
Lawrence did an excellent job on our air conditioning unit. He installed our split a/c and got it working in a few hours. He also helped my daughter's a/c problem at her house and had it fixed in less than an hour. I trust Lawrence because his work is excellent!! I will always recommend his...
Hi Tech Air Conditioning LLC
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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 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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Reviewed in February 2021
Super helpful. Very responsive, accommodating, and quick to respond. The insulation took less than a day. Good people to work with.
Speers Commercial and Residential Appliance Repair
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Reviewed in December 2019
The job got done, but did not meet my expectations. I had to go up into the crawl space and re-hang some sections of insulation that had just been taped in place. The workmen were nice and worked very hard, I just had a higher expectation of what the finished product would look like. Maybe they...
RA Acoustic Insulation and Drywall
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Find Insulation pros in Waipahu

H Drywall, LLC

5.0(

)

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

Serving Waipahu, 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 Waipahu, 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 Waipahu, 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 Waipahu, 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

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

Canned spray foam has an R-value of R-3.7 per inch. However, it’s not great for use as insulation. Also known as single-component spray foam, it doesn’t expand as much as two-part types that work for insulating the whole house. Save the canned foam for gaps around doors and windows.

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem.

Because of the moisture concern, open-cell foam requires a vapor barrier. The barrier protects against high humidity and moisture exposure in rooms such as basements, bathrooms, or exterior walls. It wouldn't be necessary in dry interior spaces.

An outdoor spigot needs some attention before the temperatures begin to drop. Using an insulative cover is just one part of minimizing a frozen spigot and pipes. You’ll also need to shut off the water and drain the spigot, which leaves as little water as possible in the pipes to prevent freezing.

The Waipahu, 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

Rachel Hoffman
•
May 30, 2026May 30, 2026
How Much Does Insulation Installation Cost? [2026 Data]
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
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•
Jul 9, 2026Jul 9, 2026
How Much Does Attic Insulation Cost? [2026 Data]
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
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•
Jul 8, 2026Jul 8, 2026
How Much Does Ceiling Insulation Cost? [2026 Data]
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
Audrey Bruno
•
Jul 31, 2026Jul 31, 2026
What Is Insulation and Why Do You Need It for Your Home?
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
Inspecting and Repairing Your Insulation: Follow This Checklist
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
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•
May 3, 2026May 3, 2026
10 Types of Insulation for Your Home
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.