What does the One Hour mean in your company name?

The 'One Hour' in our company name indicates our guarantee to be at your home in the predetermined window quoted when you set your appointment. If we do not show up within that window, your service call fee is waived. 1. Express Appointment: This is an appointment that is scheduled during a specified one-hour time slot. You are promised that a technician will arrive at your home within this one-hour time window. You will also receive a call when the technician is en route to your home. 2. Reserved Appointment: This is an appointment that is scheduled during a specified, two-hour time slot. You are promised that a technician will arrive at your home within this two-hour time window. You will also receive a call when the technician is en route to your home. 3. Standard Appointment: This is an appointment that is scheduled during a specified four-hour time slot. You are promised that a technician will arrive at your home within this four-hour time window. You will also receive a call when the technician is en route to your home. 4. Stand-By Appointment: This appointment is for overflow situations. This appointment will not have a specified time. You will receive a call when the technician is en route to your home. 5. Emergency Appointment: This appointment is for an unspecified time after normal business hours Monday – Saturday and all day on Sundays/Holidays. Calls are dispatched in the same order they are received. You will also receive a call when the technician is en route to your home.

Do you service emergencies after-hours?

Yes, we offer emergency services 24-hours a day, year-round.

How much will my service cost?

The size and complexity of your HVAC issue will determine the cost. Because our trained, licensed HVAC technicians must diagnose the issue before we are able to quote you an accurate cost, we require an appointment to be set to complete a diagnostic on your system. Once the diagnostic is complete, your One Hour® technician will walk you through all costs using our Straightforward Pricing® Guide so there are never any surprise fees.

Mandeville, LA

HVAC Service you can count on

4.8

(1901 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Service Near Me
—Available 24 Hours

One Hour Heating & Air Conditioning understands that heating and air conditioning issues create uncomfortable living situations — especially when temperatures outside are extreme. Luckily, our customer specialists are on standby 24/7 to fix your urgent issues. Whether you need HVAC installation, repair, or maintenance, our HVAC service experts are ready to help.

Emergency HVAC Services

We offer 24-hour emergency HVAC services – even on weekends and holidays – to ensure you have professional support when you need it most. Arriving with service trucks stocked full of specialty parts and tools, we have the equipment needed to fix many HVAC problems on the spot. In the case that additional parts are needed, rest assured – we will do everything in our power to handle your HVAC emergency quickly and efficiently.

Give our team a call today or contact us online to request your same-day HVAC service.

Air Conditioning

Whether you need an emergency replacement, regular maintenance, or installation services, our qualified technicians have the experience and technological resources to get any HVAC job done correctly. We utilize the latest tools, products, and techniques to stay up to date with cutting-edge changes in the industry.

AC Repair

At One Hour Heating & Air Conditioning, our HVAC technicians service all major AC brands and models. Our AC repair team can fix:

Poorly insulated ductwork
Power supply breakdowns
Defective fans or thermostats
Refrigerant leaks
Frozen condenser coils
Blocked condensation drainage
AC short-cycling (turning on and off too quickly)

After inspection, we will provide a detailed estimate.

AC Installation & Replacement

There are many telltale signs that an HVAC unit might need to be replaced. If an HVAC unit is over 10-years old, smells terrible, blows warm air, or produces subpar results as energy bills keep rising, give us a call!

AC Maintenance

For optimal performance, AC units require many parts to work seamlessly together. A single problem can cause a ripple effect of issues. This is why spotting minor malfunctions is critical. With regular maintenance visits, we can ensure your HVAC system is operating smoothly and efficiently. Consider joining our Club Membership for additional customer benefits.

HVAC Services

Common Questions

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Our Happy Customers

Reviews of Northshore

4.8

(1901 reviews)

Nick Isaacks

a month ago

“Blaine D. came to service my a/c unit today on August 31st 2025 and he went above and beyond! He immediately noticed something chewed through some wiring and that my unit wasn’t getting power. He fixed it and took extra measures that he didn’t have to do to make sure the hole was sealed up so the critter could not gain access again to the wiring. He was extremely polite and knowledgeable and answered all my questions and concerns. Absolutely excellent 10 star service!”

Jennifer White

a month ago

“We had a great experience with Josh! Came out on Sunday and had our outside unit cleaner than it’s ever been. Replaced capacitor and blower motor in a couple hours and we were back in action in time to start the week in a good mood Lol. Thanks so much for your professionalism and quality work!”

Marc Gilbert

a month ago

“One Hour was very responsive and Kyle did a good job explaining to me what was wrong, so that I understood what was needed to.fix the problem. Turns out the last company (starts with a K and ends with an s) did not do the original install properly. They were a horrible company to deal with. ONE HOUR WAS GREAT. I am very happy with the results from One Hour, and I am glad they did the work. I will definitely use them in the future if I have any more problems.”

Keith Bergeron

3 weeks ago

“Rick was the best. I had other options where to have my system replaced. But after meeting Rick and finding him to be honest and knowledgeable through experience, I went with one hour because piece of mind is so important with a large purchase.”

Roberto Lopez Jr

4 months ago

“I recently had the pleasure of working with Josh to service our air conditioning unit, and I couldn't be more satisfied with the experience. From the moment he arrived, it was clear that he was highly knowledgeable about the equipment and the issues we were facing. He took the time to explain the problem in detail and provided valuable insights on how to improve the system's efficiency. Josh's friendly demeanor made the entire process enjoyable, and he was genuinely approachable, making it easy to ask questions. His professionalism stood out, as he arrived on time, was well-prepared, and conducted himself with great respect for our home. It was evident that he takes pride in his work, as he worked diligently to ensure everything was functioning perfectly. Overall, I highly recommend Josh for any HVAC needs. His expertise, combined with his friendly and professional approach, left us feeling confident in the service provided. Thanks to him, our AC unit is running smoothly again!”

Servicing your entire home

Part of the Authority Brands Family

Authority Brands is the leading provider of in-home services, building brands that support the success of franchisees as well as better the lives of the homeowners we serve and the people we employ.