AC Repair in St. Tammany Parish

NATE-Certified, Veteran-Owned Air Conditioning Repair in St. Tammany Parish

Nu-Air Heating & Cooling, LLC is a NATE-certified, veteran-owned air conditioning repair company based in Mandeville, serving residential and light commercial customers throughout St. Tammany Parish. Our technicians hold NATE certification alongside Trane Variable Speed and Nest certifications. We’re licensed, insured, and available 24/7 for emergency AC repair on all makes and models.

Don’t wait out a breakdown in the Louisiana heat. Call Nu-Air Heating & Cooling, LLC at (985) 288-2445 to schedule air conditioning repair in St. Tammany Parish or request emergency service any time of day or night.

Why St. Tammany Parish Customers Choose Nu-Air Heating & Cooling, LLC

Nu-Air Heating & Cooling, LLC was founded in 2016 by a Navy veteran who brings more than 20 years of HVAC industry experience to every job. That background shapes how we work: straight answers, clean workmanship, and follow-through. We’re BBB accredited, and our technicians arrive with mats and boot covers to protect your home during every service visit.

Our certifications go beyond the minimum. NATE certification is the industry’s leading technician credential, and our team also holds Trane Variable Speed and Nest certifications.

Our service coverage is broad:

All makes and models: Daikin, Trane, Carrier, Goodman, Rheem, York, Coleman, Lennox, and others
Residential and light commercial: Single-family homes, rental properties, and small commercial spaces
Emergency availability: 24/7 repair service, no after-hours runaround
Maintenance plans: Customized tiers for residential and light commercial customers
Replacement estimates: Free estimates when a new system is the right call

AC Repair Services Across St. Tammany Parish

We diagnose and repair the full range of residential and light commercial AC problems. Our trucks carry a large parts inventory, so many repairs don’t require a return visit. Common failures in this climate include capacitor and contactor failures, refrigerant leaks, blower motor issues, and thermostat malfunctions. Components like these wear faster under the demands of a long Louisiana cooling season, and catching them early can keep a manageable repair from becoming a full system replacement.

When repair isn’t the cost-effective path, we explain why. Our technicians walk through the comparison, help you choose right-sized replacement equipment, and connect you with financing options when needed. We don’t push replacement when repair is the better answer.

Schedule Your AC Repair in St. Tammany Parish

Whether your system stopped cooling overnight or has been running rough for weeks, Nu-Air Heating & Cooling, LLC is ready to help. We serve residential and light commercial properties throughout St. Tammany Parish, with 24/7 availability for urgent situations. After service, we follow up to check that everything is running properly.

Call Nu-Air Heating & Cooling, LLC at (985) 288-2445 or contact us online to schedule air conditioning repair service. We’re here whenever you need us.

How St. Tammany Parish’s Climate Affects Your AC System

Southeast Louisiana runs hot and humid for a larger portion of the year than most of the country. That extended cooling season keeps AC systems running long after northern climates have shut down for fall, and the sustained heat and humidity accelerate wear on key components. Capacitors, contactors, blower motors, and refrigerant lines all degrade faster under those conditions.

High indoor humidity is a separate issue from temperature. A properly functioning AC system controls moisture levels inside the home, and a system that’s struggling mechanically often loses that capacity first. Annual maintenance and prompt repairs aren’t just about comfort. In this climate, they help protect the investment you’ve made in your equipment.

Signs Your AC System Needs Repair

Some problems announce themselves. Others develop gradually until they cause a full breakdown. Either way, the following signals mean it’s time to call a technician rather than wait:

Warm or weak airflow from supply vents despite the system running
Unusual sounds such as banging, rattling, or grinding during operation
Short cycling, where the system turns on and off rapidly without completing a full run
Ice on the evaporator coil, which can indicate a refrigerant or airflow problem
Rising energy bills without a corresponding change in usage or thermostat settings
Water or refrigerant leaks near the indoor or outdoor unit

Delaying repairs when these signs appear can lead to more extensive damage, higher costs, or premature system failure.

Repair vs. Replacement: Making the Right Call

A well-maintained AC system can last anywhere from a decade to two decades, depending on the equipment and how hard it runs. But there’s a point where continued repairs stop making financial sense.

A common industry guideline is to consider replacement when repair costs approach roughly half the cost of a new system, especially for units more than 10 years old. Newer equipment also carries higher efficiency ratings than systems installed a decade or more ago, which may help offset the upfront cost through lower monthly energy bills.

If your system requires frequent repairs, uses components that are difficult to source, or faces a repair bill climbing toward that threshold, replacement may be the more cost-effective path. Our technicians explain both options and the costs involved so you can make the decision that fits your situation. Free estimates are available for replacement equipment.

Our Technicians Service All Top HVAC brands

Don't see your preferred brand listed? Don't fret, we are equipped to service all makes & models!

Hear From Our HappY Customers

Always performs at the highest level.
“I have been using him for 25 years and he is spectacular! When you have Edgar come to your house, he is thorough, everything will be done, and he checks everything. He is incredibly professional, extremely knowledgeable, and so trustworthy in the sense that you are well taken care of. He works his heart out! He is absolutely wonderful. When he comes into your house he doesn't come in as a stranger he comes in as a friend and I'm not that easy to please. He will teach and explain to you the workings of your system. He is absolutely committed to what he is doing and his craft and his work ethic is extraordinary. I have full confidence in his abilities because he always performs at the highest level.”

Jackie
Immediate & honest service.
“I called Edgar after 6:00 on a Friday night and he came by immediately and had my AC up and running in less than an hour. He was extremely professional and honest, even reviewing a previous invoice from another company for work that we had done to ensure we hadn’t already for what for he completed. I will absolutely call him again and will recommend him to friends and family.”

Chrissy
Simply put, we had a VERY GOOD experience with Nu-Air and will use them again if/when warranted.
“Two companies before could not fix our problem. It took Edgar less than one hour to determine our Nest Thermostat was incompatible with our old heat-pump.”

Tim T.
My entire family's choice for air-conditioning.
“Our unit had gone out sometime in June in New Orleans! Edgar Mejia came out right away and made sure my family and I were taken care of. He was very thorough and efficient. I would call Edgar any and every time for our air conditioning system needs.”

Ashleigh B.
Extremely knowledgeable, professional and very honest!
“I spoke to Edgar on Wednesday a.m. , explained we were told we needed a new HVAC system. I felt a second opinion was needed. Edgar scheduled to meet that afternoon. After checking the system, he immediately told us the furnace was very good and did not need replacing, he expected it would survive at least another 10 years. He explained a/c problems and they could be repaired with parts . Due to cost of replacement parts and age of unit, we felt it prudent to replace instead of repair. We discussed the brands we were interested in. Edgar had tremendous knowledge on each brand and was thorough in his explanation of each. He didn't try to rush us through our questions. Later that evening he sent quotes on the four we spoke about. The prices were very fair. His crews were booked through mid part of following week. During our initial conversation, I mentioned we had out of town guest coming for the weekend. He was concerned and said he would come by Friday evening or Saturday a.m. to add Freon to get us through the weekend. Thursday evening Edgar called to say he had our parts and he would install Friday morning! We were very happy and impressed that he was concerned for our comfort and weekend company. Edgar completed the job mid afternoon. He left the house immaculate and the house is cool again! He is truly a professional and a great guy. Very happy we found Edgar and we highly recommend Nu-Air!”

Sherry
I tried 5 different HVAC contractors over 24 years in this house but in the future I will call Edgar Mejia first.
“I am a meticulous DIY handyman myself and I was completely satisfied with the work that Edgar did for me. He replaced the evaporator coil, transition, plenum box and first 25 ft of duct for the ground floor system. He also lined (and sealed) the return air passage. While he made several work scope additions during the job, Edgar made no attempt to increase the agreed upon price. Edgar approached my project as if he was working on his own system. I highly recommend this HVAC contractor.”

Marvin
He is the best at what he does.
“I know first hand the type of quality Edgar demands and that his ethic is so high. He is the best at what he does. I trust NU- Air #100%!!”

Donna L.
I have stuck with him as a loyal repeat customer.
“I was referred to Edgar by my sister over 7-8 years ago. At that time he was with a larger company and I began to request him and him only to come out and service my A/C. He recently branched out to begin his own business and I have stuck with him as a loyal repeat customer. He is always on time and easy to get a hold of. I appreciate his honesty more than anything. He is very thorough in his work, he won't just come in and look at one thing, he will survey the entire unit to make sure everything is working properly. I would highly recommend him!”

Ronald
Professional and timely!
“Edgar came out right away when I called him. Within a few hours to go get parts I was back up and running. He is very professional. I highly recommend him. He's cute too.”

Donna

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Why Choose Nu-Air?

Cost-Effective & Energy Saving Services

We provide top-tier HVAC solutions designed to maximize efficiency, lower energy bills, and keep your home comfortable year-round.
NATE-Certified Technicians
Our highly trained and certified professionals ensure expert service, precise installations, and reliable repairs you can trust.
Your Satisfaction is Guaranteed

We stand by our work, offering a commitment to quality and customer satisfaction with every service we provide.
Focused on Improving Your Indoor Comfort

From air quality solutions to perfectly tuned climate control, we prioritize your home’s comfort and livability.
Emergency Services Available 24/7

Heating or cooling issue? We’re here for you anytime, day or night, to restore comfort when you need it most.
Over 25 Years of Experience
With decades of expertise, we bring proven knowledge, reliable solutions, and a track record of excellence to every job.

Keep Your System In Optimal Condition

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