Simon is so honest and genuinely tries to give you all possible repair options and weigh costs.

Excellent service, fast and dependable. Would highly recommend. Got an appointment right away and my car was fixed quickly.

Steve and Simon are very nice and professional, highly recommend. They kept me informed on the parts ordered and updated the schedule service for my AC. read more

Simon professionally cared for my service, asking questions to determine the history of the unit and its performance. He explained about the unit, what components are susceptible to failure as a car ages why their replacement costs could be prohibitive and solutions to keeping it running for as long as possible without costly repairs. To keep the costs down and get my car back to me quickly, he chose to forego expensive and time-consuming diagnostics in favor of instructing me to keep track of any performance degradation and how to keep it running while keeping costs low. read more

My car's AC suddenly started blasting hot air yesterday during the commute home from town. Then this morning during the drive to school it started pouring rain. Driving with hot air blasting and windows up or get soaked in the rain with windows down? How did they do it in the olden times before cars had AC? I knew to call Cool Tech where my family takes all our cars for any AC problems. Simon was able to take me immediately which was a blessing because I was already sweating and the work day hadn't even started. While I was at work, Simon was able to diagnose the issue and called around for parts and quotes. I'm consistently impressed by his honesty and professionalism. When I picked up the car he gave me a kind and realistic overview of my limited options for my 20+ year old car. It was sad to hear the limited parts options available but I was very grateful to Simon for his care and skill. He even refilled my power steering fluid without me asking (other mechanic shop said no need refill). Now my classic car is driving like a dream. Simon didn't charge anything for the diagnosis and advice. 10/10 for honesty and professionalism. We'll continue using Cool Tech for our family's cars and I have some decisions to make about this car's AC issue. read more

Great service!!! Very nice and easy to work with! A true specialist! Thank you very much Simon!!

I was referred to Cool Tech by my lifelong mechanic who just retired -- that endorsement alone told me I'd be in good hands. My A/C went from ice-cold to blasting hot air overnight, so I was bracing myself for a painful evaporator job. Instead, Simon and Steven found the real issue: a stuck expansion valve. They evacuated the system, pulled a deep vacuum, added the correct oil, recharged it, and even swapped out the cabin filter while they were already in there. Communication was excellent, the price was more than fair, and not once did I feel upsold or pressured. They finished exactly when they said they would, and my A/C is now colder than it's been in years. If you need honest, skilled A/C work, Cool Tech is the shop. Highly recommend! read more

Called Simon at Cool Tech about my 2016 Honda a/c not blowing cold. Received a quick response & appointment. He had it diagnosed and repaired in a short time at a very reasonable rate. Simon provided a very clear explanation, helpful suggestions and useful information. This is a trustworthy, honest, qualified businessman that I wholeheartedly recommend. read more

The guys here are super friendly knowledgeable and trustworthy, which is inline with the other Yelp reviews. Oh and did I mention affordable. Our truck AC had been slowly getting warmer and it was a brutally hot summer, so we took it in to get the AC charged and serviced. The truck is over 10 years old, we were hopful that they wouldn't find anything major. Our call in to schedule the appointment was super easy, they answer the phone in person and had lots of open appointments. We had to leave the vehicle with them and there is no waiting room so took a stroll to Ala Moana and got a coffee while they were checking the car. Took about an hour and they called to let me know they were done. The AC was refilled with refrigerant and they unfortunately did find a small leak in the cab. He provided an estimate for the repair, however indicated that we could try it out and see how long the AC stays cool before we decide if we want to get it repaired. NO pressure. The AC has been working great, so we will keep using till it goes out and then would definitely give them a call to do the repair. read more

Thanks to Brian M for recommending this place to me. The owners of this place are very kind and fair. They are very honest with their service. Being a girl who doesn't know much about cars other places scam girls just for that. I worked with Simon on my AC.. it randomly just started not releasing cold air. But there was still strong wind coming out. Simon checked my chair and said it was "stupid me" button was not on... I never touch that button, I always just turned the knob for level of the ac. It wasn't as cold as before so he did have to charge it a bit and changed my filter. He didn't charge me for labor to replace it, only the price of the air filter. I appreciate places and owners who are honest. read more

Got Auto AC issues, go see Cool Tech! Simon Chung is the owner of this small two man shop! Simon has 25 plus years of Automotive AC experience! He worked for the old Larry AC on Waialae Ave then opened Cool Tech some 13 plus years ago! He's a very honest, friendly, straight forward and a professional person. He will fix your problems based on what is needed! With his YEARS of experience, You can TRUST Simon with your car evaluation and repair! He will diagnose your car himself and determine what is needed to fix your car. I highly recommend you see Simon for all your Auto AC needs! read more

See all

Trustworthy and great people! They took care of me until I got my appointment! Simon was very friendly!!

I highly, highly recommend Cool Tech. I was recommended by former retired car AC repair business owner. You can trust Simon. I was told by other places that when AC wasn't working, i need to replace my compressor. Simon found that compressor was fine and low Freon. My evaporator is leaking but could used the AC by filling the Freon. I'm so happy I took it to cool tech. I would recommend to everyone!!! read more

I have known Simon since he was a young PUP at Larry's Auto Air. Has taken care of my AC needs for probably 30yrs. He's the Bestest!!!

Several years ago, I tried this place after another auto a/c repair shop kept charging me for a problem they couldn't fix. These guys handled the repair just fine and my older car (2011 Rogue) gave me several years of perfect a/c. Fast forward to now... After getting some engine work done at a mechanic a few weeks ago I noticed that my a/c was fading. It eventually stopped blowing cold and the mechanic said it wasn't his fault. So, I brought it to Cool Tech again and they got my system running cold with some great advice and options along with foresight on what I should expect based on their experience with other cars of my model. Great customer service, speedy service and technical knowledge. I really appreciated this because I use my car daily for work. I fully recommend Cool Tech, especially if other places can't get it right. read more

I frequent Cool Tech more than a few times a year for company vehicles as well as private vehicles. They are a full auto mechanical shop. Primarily they are an Air conditioning shop, but they can do oil changes tire rotations etc. They are an honest shop. I say this because if something is out of their wheel house, they will tell you so. They will not attempt it and if something goes wrong its oops. They will tell you, perhaps another shop can do that. I appreciate how honest they are. Additionally Steve and Simon are some of the NICEST guys around. Always caring about how your day is and take time to talk stories with you. Real old school style, very professional, very friendly. 10/10 recommend. read more

Very reliable and keep you informed on when your vehicle will be ready. Had a/c compressor replaced and I'm very satisfied. read more

The best A/C shop I have ever taken my car to for repairs. Simon was absolutely the professional who quickly became a friend. Got A/C car problems? Take your car to Cool Tech. read more

Excellent advice and help with my A/C. I was quoted $3200 by a competing shop - was able to get it all done for $600 thanks to their advice. Strange location that isn't the BMW dealership service department presentation, but a solid shop that gets it done. read more

Wow First time I got a quote that was higher than the car dealership, I was pretty shocked, so I just told them to recharge my AC $80 A lot cheaper than fixing my leak. The recharge lasted almost a year so well worth it. After when I needed another recharge, I decided to go to Walmart and purchase the AC Pro recharge bottle $40 and do it myself it was really simple it took less than 10 minutes, and it was running cold again not sure how long it's going to last but better than spending $80 in these hard times. read more

Where other AC shops failed they didn't. They took care of my problem within 30min. Highly recommend them for you auto AC services.

My AC was blowing HOT air and I was dying. Have some health problems that make it a necessity to have AC on and my windows up. It was so bad I had to cancel appointments. Yelped to find a place that was good and that could fit me in ASAP. Called Cool Tech and was able to make an appointment for the next day. Happy dance! Brought my car in the next morning and was greeted by Steven. My mom recognized him from when she used to take her cars into an AC place in Kaimuki over 20 years ago. Kismet. I was quoted a 2 hour window for finding the problem. Steven called within an hour with the problem and the solutions. He was done before the quoted time for the repair. Very reasonable pricing. The part that stands out is the customer service. Both Steven and Simon go the extra mile with their professionalism and customer service. Will definitely recommend them to my family and friends. read more

I can't say enough good things about this shop! My husband brought his car in for another AC quote. The quote they gave him was almost half of what the previous store quoted. My husband only had 1 day to get his car fixed, he works 12 days straight in a row and has to be at work at 5am so this was the only day he could get the ac fixed. The staff are friendly, they talked to my husband about his schedule and then told us they would fix the car that day...it just might be late (past closing time). They are reasonably priced, trustworthy, nice guys! I'm so thankful I found Cool Tech (through Yelp) thank you so much! read more

Very knowledgeable with car AC repair. Got many quotes and recommendations from other AC places that were way more pricey and questionable. Simon at Cool Tech was straight forward and trustworthy. Will definitely recommend him to all my family & friends. read more

The temperature sensor was not working properly in my car which was causing the AC to malfunction. Cool Tech was able to assess and fix the issue within hours. They were super informative and made sure I knew what they had planned to do throughout the process. I appreciated their honesty and would definitely go back next time I need any repairs read more

I had putting off getting my bumper fixed for awhile. Mainly because cause I didn't know where to take it and definitely didn't want to go to BMW cause it would probably cost me an arm & a leg. Thankfully my dad recommended Cool Tech! Would of never known about this place otherwise. It can easily be missed but it is behind McKinley Car Wash. I called in the day before and Simon answered the phone right away and told me to just bring it in the next morning. Came in around 10am and I saw 2 guys standing outside working on cars. Simon greeted me. Showed him my bumper and he suggested two options. I went for the more affordable option and he got it done right then and there. I thought I would have to wait for awhile but he fixed it within an hour! I also asked to get my oil change since I was overdue due for one. He did that right away and by the time he was done my car looked like it was in good condition again. He even wiped the bird poop on my window and cleaned it up my car a bit (I had been meaning to wash my car before coming here oops)! Such a nice guy and great customer service! Price was very much reasonable as well. I left a happy camper and will be coming here from now on for all my car needs. Thanks Simon! read more

Once again I am amazed how good these gentlemen are. After not needing service on my new used XB for over a year I was greeted before even parking by first name. All I needed was a bulb changed which took close to 30 minutes ( complex on the XB ). Before being asked for payment Simon asked me twice if I was ok and I must have had a not understanding look on my face. Then he explains he asked because it came up in conversation that I lost my job due to the pandemic. Yes I am thank you for asking and a very fair payment was asked and made. Asked when and how much my synthetic oil change will be and the answer next week which I think is great knowing that the shop is busy and if I wanted to save money I could go to Jiffy Lube. Not a chance I want to bring my biz to Cool Air and would be happy to pay a little more for personalized efficient service. Hats off to Simon and Steve again. Wish I could give 10 stars. read more

Simon is super helpful and very honest! I went in because my AC was no longer cold. A first opinion I got recommended replacing the evaporator core for $3k... Simon was able to diagnose the problem much quicker and had a simpler fix of replacing the compressor for 1/3 the cost! Diagnosed on Wednesday and the problem was resolved on Friday. He credits you the diagnosis fee and also because he found the job to be easier, came in about $100 under his estimate. Even though he can get busy, he will take the time to walk you through what he did and why! He is very friendly and deserves all your car AC business! read more

Uncle Simon is super awesome and really nice! He can definitely help you with your car's AC problems like my 03' Toyota Matrix. A body shop couldn't figure it out and a couple of other places didn't know why my AC wasn't working. But just bringing it in for a couple of hours, the team at Cool Tech was able to figure everything out. They were professional and very honest with their prices. They worked quick and returned calls, answered questions, and definitely got my car back to me as fast as they could. If my car had any more troubles I would definitely bring it back to them again. Plus I saw a lot of expensive new and antique cars in there, so they're trusted to work on those cars, I knew they could handle my beat up daily driver :) read more

Cool Tech - Heating & Air Conditioning/HVAC Near Me - Honolulu, Hawaii

I arranged a diagnostic appt with Steven. Not only is their customer service top notch, they know their business and how to explain things in simple terms. Steve and Simon make a great team. Keep up the good work guys. read more

Simon was very friendly and scheduled me an appointment the next day to solve my AC odor problems. Changed my filter and cleaned the AC . Now my AC doesn't have any bad smell at all. And he's very nice to teach me how to set my AC . And fee was very fairs I'm happy . Thank you cool tech. Def will recommend to everyone! read more

Amazing Service! I called at 5pm the day before and asked if they could work on my jeep the next day (Friday) uncle Simon said sure! Bring it in! I got there late around 1030. I am a bit car savy, so I knew the compressor was bad on my jeep, as well as a hose. Uncle simon said he would have it done by 5pm. Perfect because I was pau Hana at that time! He fibbed, it was done at 4pm! And for $400+ less than what I was quoted at 2 other places! When I pulled in I was worried because there was a BMW suv, porshe suv, and a very nice Mercedes inside. I half joked about my jeep making these cars look good. Uncle Simon just replied " these owners been coming here many years, they not always have these nice cars!" The place is owned by the two guys working there. Super nice guys! The parts they used were OEM. Did I mention that they had amazing service???!! I made mistake of not checking yelp first, I would have had no worries! read more

Wow all i can say is thank you simon and steven for an awesome job. Saved me $800 from lex brodies to fix my compressor. 5 star all the way! Friendly professional and realistic! Wish i knew this shop ages ago! read more

Great experience at this shop. They are honest and reasonably priced! Would go back for service and any other ac needs

My AC went out in my truck and cool tech gave me great options at an affordable price. Super friendly service will definitely come back to them for all of my car AC needs read more

I highly recommend Cool Tech for your AC services, I've been there twice with two different vehicles and the service and experience was top notch. They are honest, informative, and very knowledgeable. The owner dropped me off at work and offered solutions to save me money on my AC repair. Look no further. read more

I found My trusty Toyota 4 Runner stop blowing cold air after came back from vacation ,Simon @ Cool Tech took a look and He scheduled me next day drop off for repair Simon and Steven replaced evaporator and other components same time the repair was done at top notch level and timely manner. They even replaced burnt out light bulbs inside my dash at no extra cost they are professionals and they took good care about customers cars I'm very happy to get my AC fixed at Cool Tech I highly recommend Cool Tech read more

Steve and crew did a really top notch service on my car. They had it in and out in 2 hours. My AC now works perfectly! He was upfront about the costs and didn't try sell me anything more than what was needed. Highly recommend them. read more

Didn't come here for ac or any electric issues. Came here because my car wouldn't start, good thing a nice samaritan helped us jumped the car. But I just called the nearest car shop around and it was cool tech. He was willing to take us in asap even though it was on a Sat (I know car shops are very busy). Basically checked if anything else was wrong with the car and replace the battery within the hour! Thanks cool tech! Another plus is for the reasonable price that they charge and friendliness. read more

Steven and Simon are great guys who provided excellent service from the moment I reached out with questions about their services. I will recommend them to friends and family in the future! read more