Serving Kualapuu, HI and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Very knowledgeable he allowed me to understand the problem with my AC unit and gave me a great recommendation to preserve my AC unit"
+2
Serving Kualapuu, HI and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
Mana Mechanical LLC provides reliable HVAC and sheet metal services across Hawaii. We specialize in ductwork, fans, wallcaps, louvers, grilles/registers/diffusers, and damper installations—done clean, code-compliant, and built to last. Whether you need a repair, replacement, or a new install, we communicate clearly, show up prepared, and treat your property with respect.\n\nWe’re licensed in Hawaii (C-52 HVAC & C-44 Sheet Metal) and focus on safe, professional workmanship from start to finish. Share a few details about your project and your ideal timeline, and we’ll help you plan the next steps and get you a straightforward quote.
Serving Kualapuu, HI and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"It was shocking to see what we have been living with as far as air quality for many years. Lance is very knowledgeable and provided me with a better understanding of my system. We instantly noticed the difference in air quality. Thank you Lance for providing my family and I with professional service, fair pricing, and an overall excellent experience. We definitely will be using you in the future."
+44
Serving Kualapuu, HI and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Jim was very helpful and personable to work with. I had recently moved to the Huntsville area and was unable to connect my wireless printer. There were also some things going on with my laptop that made me suspect a virus had somehow gotten on to it, it was running more slowly than usual, and I wasn't happy with the Win7 configuration I had done when I bought the computer. Jim came in and assessed the problems and we agreed on a time for him to take the laptop and reinstall the OS. He was able to get the wireless connection to work as well. He took the computer on a Friday evening and returned it Sunday evening in prime condition.
A few weeks later I got an error message while reinstalling my accounting software so I called Jim. He talked me through the problem over the phone and I was able to get the program installed so I could use the program.
Jim is great to work with, his pricing is very fair, he is prompt and reliable. I will definitely use his services again.
"
Serving Kualapuu, HI and surrounding areas
In business since 1971
Credit card accepted
"What I didn't like, I hadn't had any other problem in my house until I had an air conditioning problem. While, they did take care of fixing most of the stuff with the air conditioning. I did have to pay for the coolant that went into it, that was kind of aggravating, since you know you are already going to pay a $60-$80 service charge for something and the you turn around and think you are covered and find out there are gaps of coverage. We'll fix the part and pay for the labor but everything else is on you. I think outside of price all the categories are an "A". For price I'd give it a "C", because it's not like you are getting complete coverage. I'd use them again if I needed to, I'd definitely consider it."
+2
Serving Kualapuu, HI and surrounding areas
In business since 2025
Free estimates
Credit card accepted
I Am Cooling Solutions is a premier full service HVAC contractor that operates out of Wailuku, HI. We pride ourselves on high quality work and precise attention to details. Call today!
Serving Kualapuu, HI and surrounding areas
In business since 2020
Free estimates
We’re a locally owned and operated company with years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in handyman/carpentry work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
Serving Kualapuu, HI and surrounding areas
In business since 2005
Free estimates
Emergency services offered
Dakine Air Conditioning & Heating, has successfully been completing projects for clients for over eleven years. We are locally owned and operated that values honesty, integrity and treats your home as if it was our own. You will find us competitively priced. Don't hesitate contact us today!
Serving Kualapuu, HI and surrounding areas
Free estimates
Emergency services offered
Warranties offered
We do it all, cleanings, service, repairs, replacements and new installs. Both central and mini split units.
Serving Kualapuu, HI and surrounding areas
In business since 2017
Free estimates
Emergency services offered
We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so there will be no question on who to call the next time service is needed. Your satisfaction is guaranteed!
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.
Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.