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

(576 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

(576 reviews)

L W

06-18-2025

“We are exceptionally pleased with the service provided by One Hour Heating and Air Conditioning and highly recommend them and in particular D. j. Smith! Our AC went out one evening resulting in a hot and sleepless night. Called One Hour the next morning at 8AM and was told a technician would be available sometime between 12 and 2 pm that day. D.J. called about 11:45 to confirm he was enroute and he arrived almost exactly by 12. He quickly inspected the outside unit, the under house unit, and breaker box, performed some diagnostic tests, and had our unit to back running within 30 minutes. Our house is almost 40 years old, we have been in it for approximately 25 years, and we replaced our entire HVAC about 15 years ago. Over the years we have had multiple experiences with several companies and none come close to the service produced by One Hour. We highly recommend One Hour and D.J. Smith for anyone needing service to their HVAC system!”

Cheryl Standifer

06-18-2025

“Awesome job! He took time to explain everything he was and needed to do. Thank you so much for the experience. Will use this service if needed in the future”

Tim C.

06-17-2025

“DJ was awesome! Very knowledgeable and polite. He fixed our a/c in no time and gave us pointers and options to upgrade our system. Highly recommend!”

Anthony Cox

06-17-2025

“Professional, very detailed in repairing the unit”

Chuck Petersen

06-16-2025

“The installation of our new A/C unit was preformed very professionally and in a timely manner.”

Tina Henderson

06-16-2025

“I called first thing in the morning and the technician, Tristan, was there by noon. He was prompt, courteous, and did an excellent job. He diagnosed and fixed the problem in a short amount of time and in a very professional manner. I would highly recommend One Hour Heating & Air Conditioning Crystal Coast!!”

Alexander Jackson

06-16-2025

“Tristen did an absolutely stellar job on our A/C. Very knowledgeable, respectful, and explained everything in detail while answering my questions. Price was incredibly fair considering what A/C costs can be these days! Will continue to use this company for our future HVAC servicing!”

Ryan Barker

06-16-2025

“Could not be happier! Thank you to the One-Hour HVAC of the Crystal Coast team. They quickly diagnosed our issue, ordered the part needed to fix, and worked around our messy schedule to ensure that we were back up and running in no time! Daniel Lewis was our Technician, and went well above and beyond to ensure we had a good experience!”

DEBORAH RESETAR

06-13-2025

“John,Johnny and Brad did a fantastic job. They came within 2 hours after call. They were very professional. Would highly recommend them”

Tyler Marcell

06-13-2025

“DJ Smith is an excellent service technician. Really good at diagnosing the problem and informing the customer about repair options.”

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!"