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 Air Conditioning & Heating® of Coastal Georgia

4.8

(37 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Coastal Georgia , SC

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

4.8

(37 reviews)

Lora Grieco

06-16-2025

“My husband and I have used these guys several times now for duct work repair, maintenance work, and electrical problems with our unit. Craig consistently meets me with kindness every time I reach out. He is very responsive, and ALWAYS follows through -even on short notice. Can’t say enough great things about all of the guys I have worked with here- Jason and Shawn have been amazing!! I would definitely recommend One Hour Heating and Air to anyone, and I will continue to work with them in the future!!”

Beth Hughes

05-21-2025

“Korey was great. Very thorough. Explained his findings and quickly got to work correcting the problem. My air is back on and we are all cool again. Thank you Korey and One Hour Air Conditioning and Heating.”

Mike Ingham

12-05-2024

“Mario Dean came today and performed maintainer to my A/C unit. He was very knowledgeable and professional. Very satisfied with work.”

Tea

10-17-2024

“I've just gotten the best service from this company. My thermostat became a little glitchy (which is bad news on the first chilly day of the season, right ?) That was no problem for the "One Hour AC&H" company. Within 2.5 hours, Mario, a superb technician, was knocking on my door. He got right to work in a confident manner. I stayed out of his way as I observed that he was quite focused. After half an hour of clicky tools, gauges and beeps, Mario tested my system, changed my filter and showed me how to use the new thermostat efficiently. He managed the problem nicely. ...And he was one of the most polite people I've met in a long while. I shall refer your company's services to everyone because THIS is what customer service is all about !”

Tonya Blake

10-14-2024

“Shaheem King was very professional, courteous, and efficient. He told me exactly what was wrong and told what his company do and what the short term temporary fix would be and what the needed to be done. I don't recall the guy's name that called me to give me the quotes but he was great as well and I recommend this company 💯 percent. Thanks guys!!!”

Robert Meyers

09-01-2024

“Very helpful”

Cindy Parker

08-09-2024

“Very fast service! I am home bound and on oxygen and they came quickly on a Saturday. Thank you so much you guys are the best!”

Jason Arbelo

07-12-2024

“⭐️⭐️⭐️⭐️⭐️ Tim, the HVAC technician, did an outstanding job. From the moment he arrived, it was clear he was not only personable and friendly but also highly knowledgeable about HVAC systems. He quickly diagnosed the issue with our system and impressively had all the necessary replacement parts on hand, which saved us a lot of time and hassle. Tim's efficiency was remarkable; he completed the repair swiftly without compromising on the quality of his work. Throughout the process, he explained what he was doing and why, which made us feel very comfortable and informed. His professionalism and expertise were evident, and he went above and beyond to ensure our HVAC system was running perfectly. I highly recommend Tim for any HVAC needs. His excellent service, combined with his personable nature and technical skills, makes him a top-notch technician. We are extremely satisfied with his work and will definitely call on him again for any future HVAC issues.”

Shirley Sumrall

06-27-2024

“Tim made this experience absolutely smooth. Great customer service, very professional, and friendly!”

Marques Brown

06-18-2024

“Very helpful and A very great person”

Special Offers

Mention these discounts at time of service

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Free WIFI Thermostat worth over $250

If you purchase a new complete system we will give you a WIFI programable thermostat on us. You can control your system from anywhere, get alerts if the system is down or change the temperature from the comfort of you favorite chair. This offer applies to complete system install 15 SEER and higher. Call for details

Excludes Basic Systems. Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, fees and taxes may apply.
FREE SECOND OPINION

It is always good to get a second opinion on any repairs or replacements. With our second opinion program we will look at your system and give an upfront opinions for either repair or replacement. There is no obligation just an honest opinion. We offer traditional values and treat your home like it is one of our families. Offer value $119

Limited one coupon per household at participating locations! Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
Free WIFI Thermostat $400 value

Free WIFI thermostat with a complete system change out 16 SEER and above. These are energy savers and allow you to monitor your system while you are away. Installation and setup included in this offer.

Terms and conditions apply. Offer valid on new Premiere and Optimum systems only, excludes deluxe and basic systems.

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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.