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    Services - Terrawatt

    Building energy audit

    Insulation removal

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    3 years ago

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    4 years ago

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    Cooper Insulation

    Cooper Insulation

    (2 reviews)

    Excellent customer service and installation from the guys at Cooper Insulation!…read more Fast, efficient, friendly. Owner Lee did the preliminary inspection and estimate, and followed up almost immediately about scheduling a work date, which we did, and now it's done, in the blink of an eye! Very unusual, by Maui standards, in my experience. We have, at last, a warm home, and nothing but the highest recommendation for Cooper Insulation!

    I had a whole-house fan installed in my attic but the lack of insulation up there meant that it was…read morereally loud on top speed. I had considered buying insulation and installing it myself, but I'm old, mobility challenged and knew that it would take me months to complete the job on my own. I also had no idea what it would cost to have it professionally installed. I found Cooper Insulation on yelp, went to their website and sent a message. I got a phone call response almost immediately. The estimate for fiberglass insulation in my attic crawl space was well within my budget so I waited about a week while they fit me into the schedule. A team of employees arrived at a little after 7 a.m. and acted like a bucket brigade, ferrying pieces of insulation to the younger, more able-bodied members up in the crawl space. The job was done quickly and efficiently. They cleaned up after themselves and were on their way. The job cost exactly what was estimated. I could not be more happy. Not only is the whole-house fan's noise muffled by the insulation, but I am looking forward to my house being much cooler for their efforts. If you need insulation, these are the folks to call.

    Kona Air Conditioning - Kona Air Conditioning loves smart home controls and can help you setup your system.

    Kona Air Conditioning

    (41 reviews)

    My Air conditioning went out on a Saturday night, we were all so hot by the morning and I had to…read moretry to call someone out to fix it on a Sunday. I called 3 different places, the only one who answered was Mike from Kona Air Conditioning. He was so professional and friendly, he knew it was around 83 degrees and humid, and he said he would be out within the hour!! On a Sunday! I cannot tell you in words how much I appreciated that he came out so soon, And he fixed it within the hour!! :) There are not many businesses like you in this world today! Thank you, thank you, thank you!

    We absolutely 100% recommend Kona Air Conditioning! They are the highest quality professionals,…read morethey listen to your concerns and focus their solutions on your key issues, budget, needs, etc. That said, Desmond does a good job of educating his clients on options! After all they are the professionals so plenty of options to share! Katie who handles the office, scheduling, client questions...is absolutely awesome as well! We had an air conditioner that had been out of commission for awhile, we had used one contractor who did an expensive patch fix that did not last (it seems that he did not do a complete review of our system and had not fully assessed or even looked at the equipment in our attic) which was quite unfortunate and rather costly, to the contrary Desmond with Kona Air Conditioning took a really good look at the whole system and clearly explained the issue and initial options. They manage a crew of terrific air conditioning professionals that get the job done with minimal disruption to a household. Totally clean, taped off areas and used plastic and drop cloths. Did not even have to cut or expand access points. No excessively long wait times either once we decided to move forward with them. Warranties on service/labor, warranty on parts/new equipment, they handle product registration and any rebates from Hawai'i Energy. We could not be happier with them! To a person every one with their company has been 5 Star terrific, professional, respectful, informative, responsive, customer focused, and just very nice people to deal with even if your grumpy from being hot when your old AC fails. Thanks Kona Air Conditioning, we are going to refer our nearest and dearest to you...and any one reading this review!

    Hawaii Fireplaces & Air Conditioning - For Contorl of wide range of Gaseous organic and inorganic chemicals. Also, formaldehyde, Hydogen sulfide, sulfer dioxide etc.

    Hawaii Fireplaces & Air Conditioning

    (6 reviews)

    Enough waiting for a call back from this company. We bought a $6,000 plus fireplace from them yet…read morethey are not available to provide service or support. Way before the Covid debacle; this company has had issues in providing quality customer service. I guess your better off not having a fireplace or if you do buy an electric one.

    Recently had new mini-split A/C system installed in entire house. Very prompt and professional…read morecompany. Knowledgeable about their equipment and coordinated great with my electrician to make sure I had necessary power for install. Received detailed quotation in less than a week's time, Ed was very open to responding to my questions about the quote and helping educate me about split system A/Cs. After placing my deposit I was able to get on their schedule for installation in about 3 weeks. Unlike many other companies, Hawaii Fireplaces & Air installs ceiling mount mini-split systems which look clean and seamless and don't stick out from the wall in each room. It is more work to install the ceiling mount style but very worth it. No one would every guess I didn't have central A/C. Every employee and installer was helpful and worked as a team which says a lot for company management. Installing A/C for the first time is expensive and a big investment and you want it done by experienced installers with a great attention to detail. I plan to also use them for continued maintenance to keep my system running great for years to come.

    Terrawatt - insulationinstallation - Updated July 2026

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