Spray Foam Insulation in Honolulu, HI

Find top-rated spray foam contractors and save up to 25% on energy bills

Compare 5 verified spray foam insulation contractors serving Honolulu, Hawaii, backed by 109 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Honolulu contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 25% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Honolulu

25%
Average Energy Savings
Typical range: 20% - 30%
$450
Estimated Annual Savings
Based on $150/month average energy cost
5 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for your climate zone.

Verified Contractors in Honolulu

Direct: (808) 847-7400

5⭐
1 Google reviews

Recent Reviews:

John Montano★★★★★6 years ago

They do fine work looks good

4.8⭐
69 Google reviews

Recent Reviews:

Gene Jacquet★★★★★2 months ago

Heavy rain and strong winds created a leak at my rental property in Honolulu. My tenants weren’t too thrilled about it. I needed immediate service since I wasn’t able to diagnose the problem myself. The leak was coming in over my flat roof but it turns out that the water was coming in at the pitched shingle roof and flowing down hill and under the flat roofing material/system. MRC was able to determine this cause within their first inspection. They tarped my roof for free until they could schedule the reroofing project for a later date, which was a life saver because it kept raining daily. Then when the weather cleared up, they scheduled the job to reroof the shingle section of the house. This stopped the leak and now I have a warranty on my roof and I have happy tenants. I don’t live on island but the communication and pictures that MRC provided throughout the process made it feel as if I was there the whole time. MRC described the whole situation to me. They even threw a little extra silicone water proofing around the skylight curbs just in case. That’s what I call value added service. Don’t hesitate to call MRC Roofing if you have a roof issue.

Don Hyatt★★★★★2 weeks ago

My new house came with a sneaky little roof leak that created a big problem. The leak was traveling horizontally. MRC was able to determine that a reroof was in order. They removed what turned out to be three layers of roofing and found a lot of rotten lumber that needed to be replaced. They removed the pitch and gravel roofs and installed a new 3-ply CertainTeed modified bitumen cap sheet system. It came with a 20-year material warranty (transferable) and a 7-year leak free workmanship warranty.

Eric Hara★★★★★a month ago

I had a leak in my roof under my hot water solar panel. MRC was able to coordinate with my solar contractor so that they could be there at the same time. MRC made sure that the penetrations into my metal roof were sealed properly once the solar was removed. MRC also coated my flat roof with silicone. The communication between MRC, the solar contractor and myself was very good, and the job was done in one day. I am a previous customer of MRC’s and I’m glad that I called them again. One solar contractor that I spoke with told me that the sections of metal roofing under my solar panel needed to be replaced. MRC told me that was incorrect and over kill for such a minor repair. With the money I saved on metal roof panel replacement I was able to put toward coating my flat roof with silicone. A lot of my neighbors have coated their roofs with silicone also instead of tearing off their existing roofs. The nice thing about silicone is that Hawaii’s algae can’t embed into it, which means it will be easy to keep clean in the future. If you’re looking for an honest roofing company. I highly recommend MRC.

4.7⭐
34 Google reviews

Recent Reviews:

Jeffrey Protacio★★★★★a year ago

We recently had our roof replaced by Protech and we are very pleased with the outcome. The team at Protech did an amazing job and met all the times they promised. We took a long time to finalize the job because of some issues but the team at Protech honored and extended the quote they first gave us. I can't say enough about our contact Jared who we worked with thru the entire process. Jared provided great communication and was very timely with this information with us. The team that did the work was top notch and very professional. We added on a job to add on gutter to the house and that was also a seamless operation with these professionals. The team also did quality work to make the repairs our 60+ year old house desperately needed to prepare for the reroofing job. We contacted 3 roofing companies and no doubt this company is the best in the business. We are very pleased with Protech, Jared and the whole team!

Steve Mazur★★★★★2 years ago

I recently had Protech Roofing blow insulation into my attic. They spent about 3 hours and left without a trace. No mess. I can also say that anyone who has an attic should get insulation as it makes a noticeable difference. I will use AC less often now and when I do, it wont use as much energy. My ceiling was hot during the day before and now it feels very cool. Full disclosure, I worked with Protech on a large commercial project for my day job and they also were very efficient and communicated well which is why I trusted them to help with my personal home.

Joseph Daneau★★★★★7 years ago

Protech Roofing is a first rate business. I've been a licensed contractor for 12 years. I can tell when a quality business shows up.They have replaced roofs on 2 properties now with 2 different crews. Both times the job was fast,clean and friendly.Very professional. Charlie's guys are great to work with. Yes ! I would recommend them to everybody ! Go Charlie and Thank You...

3.4⭐
5 Google reviews

Recent Reviews:

Destiny Pedro-Smith★★★★★2 years ago

I had my roof re-coated and it turned out beautiful! Communication was great and they were quick.

Chad Dickinson★★★★★6 years ago

Excellent service, and our new spray foam roof made our home 10 times cooler.

Michael “MJ” Hallinan★★★★★a year ago

Frequently Asked Questions — Spray Foam Insulation in Honolulu

These are the questions Honolulu homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 25% typical energy savings. Compare the 5 verified Honolulu contractors above for exact quotes.

Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost in Honolulu, HI?▼
In Honolulu, HI and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Honolulu costs $2,000–$6,000. Most Honolulu homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Honolulu, HI?▼
When searching for a spray foam contractor in Honolulu, HI, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Honolulu contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Honolulu for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.

Spray Foam Contractors Near Honolulu, HI

Not finding the right fit in Honolulu? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.