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    Jenaiah M.

    Derek and his team (3 people total) are very friendly, professional and timely. We installed two split A/C units in our main living spaces and they have been working exceptionally well, no problems thus far. The team works very quickly, so they are in and out of your home quickly, not wasting any of your time. We highly recommend their services if you are in the market for having air conditioning installed in your home.

    Ryan G.

    Derek (the owner) and his guys installed my Central AC unit, great service and good clean work he even let me know that having a larger AC unit is not better (cause I had the thinking the bigger the better), he let me know that when you get bigger AC it would create problems like mold, and he saved me money $$$! I recommend them to anyone looking for AC in Hawaii.. right now its to dam hot here not to have AC..

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    10 months ago

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    3 years ago

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    6 years ago

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    4 years ago

    The best AC company by far. Awesome and knowledgeable workers. Very Reliable and prompt.

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    7 years ago

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    12 years ago

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    6 years ago

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    5 years ago

    Great company, Great system. Owner Derek easy to work with workers are knowledgeable and efficient. Derek Did AC jobs for me no complaints.

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    3 years ago

    Poor service, negligent staff, horrible installation practices. Recommend using a different contractor.

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    6 years ago

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    5 years ago

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    7 years ago

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    6 years ago

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    7 years ago

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    4 years ago

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    7 years ago

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    8 years ago

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    10 years ago

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    Review Highlights - Cool Air

    We decided to move forward and Derek's team was in our driveway the next day and worked so efficiently to knock it out.

    Mentioned in 12 reviews

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    APB Construction HVAC Division - APB Construction is a Clean Energy Ally with Hawaii Energy

    APB Construction HVAC Division

    (153 reviews)

    I had two chill water a/c units serviced. From scheduling the service to the payment, easy and…read morequick process. The two technicians, Trent and Keau, were on time and professional. I will certainly use APB again.

    I had an excellent experience with APV Construction Corporation when upgrading my central AC…read moresystem. My old unit from 1999 had been out of commission for years, and when I started shopping around for a replacement, it felt like most companies either weren't interested in doing a central AC reinstall or were quick to push me toward a split system. While splits are cheaper, I didn't want new condensers blocking my walkway, and I preferred reusing my existing ductwork and electrical setup. APV was the standout. They gave me a straightforward and reasonable quote for restoring the central AC--only slightly more than the split-system options I was being offered, especially considering how expensive other companies have become. They also partner with Hawaii Energy, which helped me get an additional discount. That made the decision easy. From the moment Jordan provided the quote, the entire process moved fast. Lyrissa handled the scheduling and had the installation booked within a couple of weeks. In total, everything was completed in right around two weeks from quote to installation, which was impressive. Mark, Trenton, and Juel arrived right before Thanksgiving to do the install. They were prompt, professional, and efficient. My home is wonderfully cool again, and we enjoyed a very comfortable Thanksgiving because of them. I'm genuinely pleased with the entire experience and highly recommend APV to anyone looking to restore or upgrade their AC system.

    KK Air Conditioning - Commercial Mitsubishi install. 24,000 BTU each. Factory coated to endure nature's direct effects.

    KK Air Conditioning

    (69 reviews)

    The KK Air conditioning team was fast to respond, professional, reliable and a high-quality AC…read moreservicing team. Myra (office manager) was very sweet and got back to my quote and questions very fast, explained to me whats was included with maintenence cleaning my split AC indoor and outdoor units and was able schedule maintenance with my day time preference in 2 days. They partner with Hawaii Energy and gave me $150 off instant rebate for maintenance cleaning both my indoor and outdoor units, which made their rate very competitive compared to all the other company quotes. Cleaning day I was notified in advance when the technicians were on their way. The 2 technicians were professional and came on time with their company KK air conditioning truck and van. They were both very nice and patient with my 2 curious toddlers and dogs. The cleaning work was phenomenal, and both indoor and outdoor units were squeaky clean when they were done. 3.5% fee for credit card payment and received an email invoice receipt. Im very grateful to the KK air conditioning team and will definitely be calling them again. Thank you KK Air Conditioning!

    DO NOT HIRE KK Air Conditioning!!!…read more Save yourself from the stress, unprofessionalism and unethical practices!!! We paid KK Air Conditioning (Kent Muramoto the owner) $53,000+ to install central air conditioning -- 2 new units -- in our home in Waianae and have had nothing but trouble with company and the owner. - Consistent rattling of the intake air vent for over a year and they've done nothing but bandaid fixes until we demanded they permanently fix them instead of using cheap double sided tape to rig the system - 1.5 yrs into having the units i've gotten a HUGE leak that's in my master closet and master bedroom. (most recent situation.) - I had to hire another industry professional to take care of the leak problem that Kent Muramoto (the owner) is NOT able to fix. - We've had to get multiple outside technicians to review the problem and they all said it was an installation and maintenance issue that cause these leaks - In a final attempt to try and fix the issue, Kent Muramoto has made the problem worse and now i'm left with a BROKEN AND INOPERABLE system, AGAIN. I've been left with nothing but stress and ongoing issues ever since this company stepped into my home. Kent Muramoto has been very UNPROFESSIONAL AND UNETHICAL in regards to the issues we've experienced.

    Calvin's Air Conditioning & Refrigeration - Installed a 2.5 ton Arcoaire Central AC in Customers Kapolei home

    Calvin's Air Conditioning & Refrigeration

    (33 reviews)

    Initially, Calvin's did not fix the issue we had…read more However, they reached out and after clearing up some mis-communication issues (to include our calling the wrong number), Calvin himself came back to our house to fix the issues. I appreciate the timeliness in rectifying the issues, thus I am updating my review to 4-stars. Thank you for understanding and fixing our AC!

    We had been having a hard time getting in touch with the original AC technician who installed our…read morefive split units. After reading Calvin's excellent reviews on Yelp, we decided to give him a call -- and he came out the same day to assess the situation. His wife, Nicole, was incredibly professional, friendly, and easy to communicate with. Later that same day, Calvin returned after finishing another job. He immediately impressed us with his knowledge of the AC systems. Instead of pushing for expensive replacements, he recommended maintenance where possible, which saved us a significant amount of money. The estimate he provided was much lower than we had expected -- a welcome surprise. Calvin ended up replacing two of the units and performing maintenance on the remaining three -- all by himself. His attention to detail and excellent customer service made the entire experience smooth and stress-free. Calvin is down-to-earth, approachable, and clearly takes pride in his work. We're extremely satisfied and highly recommend his services!

    Cool Air - hvac - Updated June 2026

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