
Serving Waimanalo, HI and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Kung Fu air did a great job on my unit very professional. They were on time, I would recommend them to do the job."





+9


Serving Waimanalo, HI and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Kung Fu air did a great job on my unit very professional. They were on time, I would recommend them to do the job."





+9
Serving Waimanalo, HI and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
"I am extremely pleased with the outstanding service provided by Oahu Electric & Air during the installation of my central air conditioning system. From start to finish, their team demonstrated professionalism, expertise, and attention to detail. They arrived on time, communicated clearly throughout the process, and completed the installation efficiently while maintaining a clean and organized work area. The quality of their workmanship was excellent, and they took the time to ensure everything was operating perfectly before leaving. I highly recommend Oahu Electric & Air to anyone looking for reliable, knowledgeable, and professional HVAC installation services."

Serving Waimanalo, HI and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
"He arrived early and was very polite and efficient. Completed the work, made sure that everything was working, and even provided photos. Great service"





Serving Waimanalo, HI and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Nick T. was awesome. He came and identified the problem very quickly. Once he knew what parts to get, he promptly got them the next day and installed it and fixed the problem immediately. Nick was friendly and helpful, I would definitely recommend for all future plumbing jobs."





+7

Serving Waimanalo, HI and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Very professional and on time"





+7
Serving Waimanalo, HI and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"Having some issue of my air conditioner, so I called them for service. They are came at my home very short notice and diagnose the problem and solve it. Thank you team."

Serving Waimanalo, HI and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Julian?s work is really great! He is very meticulous in the details that I didn?t even realize was important. Response time was also very fast with a quick turn around time. I highly recommend giving him a call for any AC work!"





+2

Serving Waimanalo, HI and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Mana Mechanical’s owner, David, is a responsible professional who takes his commitments seriously. I needed to replace our old rooftop AC duct urgently. David was the only one who committed to meeting our aggressive schedule. He was honest with me that this would be his new company’s first job. I was a bit anxious, but decided to take a chance because I was impressed by his diligence during his on-site inspection. David acted as the general contractor, hiring engineers, electrician, crane operators, etc. His operation was flawless despite several unforeseen challenges, which he spent extra time and energy resolving himself. He even took extra work not included in original agreement staying late to finish them after his team had gone home. Even after the job was finished and paid for, he provided a detailed report with recommendations for other concerns he noticed on our rooftop. I am so grateful to have met David and highly recommend Mana Mechanical for your next project."
Serving Waimanalo, HI and surrounding areas
Approved
Small jobs welcome
Hi, I’m Calvin, I specialize in servicing and maintaining ductless mini-split and central heating and cooling systems. I help homeowners lower their energy bills and prevent costly breakdowns through high-quality, detail-oriented technical maintenance. If your system isn't running as efficiently, I’m here to fix it right.
Serving Waimanalo, HI and surrounding areas
Approved
In business since 1987
Credit card accepted
Offers commercial services
Here at Steve's Plumbing & AC Service, Inc., we are a Maui plumbing and air conditioning contracting company that specializes in AC repair and replacement, plumbing repair, service work, and remodeling. We have the experience, manpower, and inventory necessary to handle any project, no matter whether it is large or small. We are also a family-owned and operated business. We are committed to providing excellent workmanship and high-quality products for every project we undertake. We offer a 100% customer satisfaction guarantee and 24-hour emergency services. Up Front Pricing - You approve the cost before we start the work. We charge by the job, not the hour. No one wants surprises when the job is done! Fast Service, Emergency Service. Radio Dispatched, Fully Stocked Trucks in Your Area Daily. When you have an emergency, you need to know it will be fixed in a hurry. We understand and can be there within hours not days! Trusted and Recommended ,Call Us Today!
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.
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