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(R) technician will walk you through all costs using our Straightforward Pricing(R) Guide so there are never any surprise fees.

How often should I service my HVAC system?

It's ideal to service your cooling system each spring and your heating system each fall to ensure you find small issues before they become big problems.

How often do I need to change my HVAC filter?

Your filter should be changed every one to three months, depending on conditions in your home and your region's climate.

Do you offer purchase financing?

We work built relationships with several lenders to ensure our customers are able to restore comfort in their homes. Ask your technician about your financing options.

What are the advantages of a smart Thermostat?

Smart thermostats learn a household's patterns and adjust heating and cooling according to when a home is occupied, give homeowners the ability to control the thermostat remotely, and enable homeowners to reduce their energy use, saving you money.

HVAC means Heating, Ventilation, and Air Conditioning. HVAC systems refer to air conditioners, furnaces, and any unit that cools indoor spaces during the summer and warm them in the winter. In general, an HVAC system takes in air, heats or cools that air, and blows it into a room or any indoor space. While many homes have separate air conditioning and heating units, others have a heat pump that cools and heats the house. Not only do HVAC systems maintain desired temperatures, but they also improve indoor air quality and regulate humidity levels. But most importantly, these units provide comfort all year round.

What is a SEER Rating?

The SEER (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER rating, the more efficiently a unit operates. The SEER rating of any given unit can range anywhere from 13 to 21.

Bringing Comfort Home

With Expert AC Services

One Hour Heating & Air Conditioning® of Crystal Coast

5.0

(615 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Crystal Coast, NC

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort.

At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

We Have a Reputation

For Being Punctual, Friendly and Knowledgeable

5.0

(615 reviews)

tee H

07-03-2025

“Lewis came out ASAP and solved problem, quick and efficiently in a very informative and professional manner! I would choose this type of service over any other. Thank you”

Timothy Roubal

07-03-2025

“Very quick service. Came at the end of the week right before a holiday weekend. Only about 3 hours after I called out AC was back up and running.”

Diana Wood

07-03-2025

“Tristen was very helpful and informative. Diagnosed the issue quickly and was extremely professional. Highly recommend!”

Mary-Brett Purnell

07-02-2025

“From the moment Tammy answered the phone she was courteous, professional and ready to help get a repair technician out to me ASAP. I explained that I had already called the company that installed my unit and was told it would be “tomorrow at the earliest” and she understood that a hot house full of friends and family was not a way to start the holiday. Within 1 hour Tony was at my home, inspected the unit and solved my loose wire issue. While on site her also re-insulated my coolant line so that my unit could function as efficiently as possible. Tony was polite, informative and efficient. Thank you to Tammy and Tony for all your help!”

Gw Barry

07-02-2025

“When other companies told us it would days before they could see us, One Hour came that afternoon. Daniel was great, I’d highly recommend him and One Hour. He fixed our AC on one of the hottest days of the year and also diagnosed others issues that they’ll attend to at a later date.”

Rebecca Barry

07-02-2025

“Great service! When our hvac stopped working the week of July 4th, we didn’t think we’d get someone in soon. A friend highly recommended this company and we’re so glad they did! Dan, the service technician, explained the issue and was able to address it at time of service (lucky it was a simple fix!). He also noticed an existing issue we haven’t been able to figure out and had some great insights. We have already have planned to have Dan return to help with that issue.”

Bryan Berry

06-30-2025

“John and Johnny took great care of my hvac problem. Very polite, quick and knowledgeable. Thanks guys!”

Adam Horst

06-30-2025

“I called One Hour when I was experiencing some issues with our HVAC unit. They responded quickly and helped me come up with some things to try. After that didn’t solve the issue DJ came out and was extremely helpful in figuring out the best way to solve the problem.”

neal

06-28-2025

“I just wanna share my awesome experience with one hour heating and air conditioning… Tristan showed up quickly, diagnosed the problem, took care of it and brought AC back to our home which was really important as one of our family members really requires it. I cannot give a higher recommendation to Tristan and one hour heating and AC thank you!!”

chris addison

06-28-2025

“Tech was very knowledgeable and kind. Had our AC up and running within 30 mins of arrival. Very happy customer!”

Special Offers

Mention these discounts at time of service

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$50

Off Any Repair, Upgrade or Replacement

Can not be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

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HVAC Services You Can Count On

Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, we’re an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.

Here For You

When You Need Us Most!

Yellow One Hour Heating & Air Conditioning service van with company branding and slogan.

'Round the Clock Availability

No matter the hour, you can trust One Hour to be there to help you when you get hit with the unexpected.
100% Satisfaction Guarantee

We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.
StraightForward Pricing® Guide

Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!
Always On Time…Or You Don’t Pay A Dime!®

We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.

Meet the Crystal Coast Team

Meet the owners of One Hour Heating & Air Conditioning Crystal Coast!

Our Story

Meet Paul and Will Harris, the father-son owners of One Hour Heating & Air Conditioning Crystal Coast. Paul and Will were born and raised in North Carolina and have lived on the Crystal Coast for over a decade. The two noticed the Crystal Coast was in need of an HVAC company where customer service was the top priority. This drove them to open a One Hour Heating & Air Conditioning Franchise with the following mission.

"Our Customers are our #1 priority. Their time and satisfaction are most important to us therefore we guarantee on time delivery of services with 100% satisfaction, or the customer does NOT pay a dime!"