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 SEER2 Rating?

The SEER2 (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER2 rating, the more efficiently a unit operates. The SEER2 rating of any given unit can range anywhere from 13 to 21.

Bringing Comfort Home

With Expert AC Services

Duggan's One Hour Heating & Air Conditioning®

4.9

(2376 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Augusta, GA

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

4.9

(2376 reviews)

Sarah Gabler

07-18-2025

“Alan has serviced my generator for 4 years always does an excellent job. He takes time to ensure everything is working properly and explains the why behind it all. Thank you for being so knowledgeable and understanding!”

Sedell Jacobs

07-18-2025

“I had the pleasure of a gentleman named Gary Wallace to come out and service my unit. He was very knowledgeable about what the problem was and corrected the issue with ease. He also informed me on what I should do moving forward to keep my unit running proficiently.”

sharon bledsoe

07-17-2025

“great”

jessica harris

07-17-2025

“Gary Wallace customer service today was top tier! I received my yearly AC maintenance and he was professional and knowledgeable. Thanks again Gary and Duggan’s.”

Charlie Cummings

07-16-2025

“Allen did a good and thorough job on my air condition service.”

Karen Barringer

07-14-2025

“Very good service answered any questions I had and solved my issues. Very polite and knowledgeable. Would call Duggan if needed again”

robert starnes

07-09-2025

“Great guy really knowledgeable.”

Denise Campbell

07-08-2025

“Kevin Holley did an excellent job on getting my air conditioner back up and running. He also did my yearly maintenance on it as well. Was very friendly and knowledgeable, presented himself very well. Keep up the excellent service…..”

Martin Sullivan

07-07-2025

“Thorough service and detailed inspection! Upgraded with surge protection.”

Charles Beard

07-07-2025

“I can always count on Duggan 1 hour heating and air the technicians are very professional and knowledgeable and do a excellent job!”

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, were 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.

0% Financing Available

Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.

Discover Your Options

Meet the Augusta Team

Tony Duggan

General and Service Manager

Hi, I'm Tony... I started my career in heating, air conditioning and electrical in 1985. While going to Augusta College, I worked in all areas of our family business. Starting out as a helper and eventually lead service technician before I graduated from Augusta College in 1991. After marrying my wonderful bride Carol, I focused full time in HVAC and electrical contracting passing the Georgia State exam in HVAC and electrical. Along with my sister Terrie we took over the family business in 1998 with a quest to be the best. Thank you for choosing Duggan's One hour Heating and Air for your families HVAC and electrical needs.
Spencer Reeves

Sr. Service Technician

Spencer is one of most senior technicians. After serving our country, he has brought that skill and integrity to the HVAC industry. Completing One Hour's best training, he has the skill to do a complete need analysis for any home owner. He can design the best system to meet anyone's budget. With his expertise he takes on any challenge.
Randel Clark

Sr. Installation Technician

Randel in our Sr. installation leader. He has attended numerous technical and installation courses. Having the highest level of EPA certification, he is an expert in all areas of installation. Making his home in McDuffie county, Randel enjoys hunting, fishing, and any other out door fun.
Allen Carter

Service Technician

Duggan's One Hour is proud to have Allen. He is one of our best maintenance technicians and is EPA certified. He is thorough and takes pride in every job to ensure the system is in tip top shape, ready for the next season.
Calvin Jones

Service Technician

Calvin has shown himself as the tops of client satisfaction. Winning the first ever Duggan's One Hour "Service Beast" Champion belt in 2018. With the highest in client reviews for 2018, Calvin has set the mark for taking care of clients with expert diagnosis and repairs. Calvin also has extensive knowledge with electrical trouble shooting and electrical repairs. He has attended Briggs & Stratton whole house generator classes.
Kyle Teague

Installation Technician

Hard working Kyle is a great asset to our company. His attention to details makes him an awesome installation assistant. But what really makes him stand out is his ability to organize. He has transformed our warehouse space to an efficient well run space. Heading up our recycling efforts to be better stewards of our resources, he has taking it to the next level.
Leane Sommer

Customer Service Manger / Sales Coordinator

Our Sr. Customer Service Rep. and Sales Coordinator, Leane has been certified by One Hour Success Academy. Her amazing ability to keep up with clients needs and concerns while administrating to the daily office needs is awesome. She has been a top performer with One Hour getting thousands of clients happily involved with our Comfort Clubs. She has saved our clients money by showing how important preventive maintenance is to the life of their home comfort system.
Bobby Denton

Installation/Maintenance Technician

Description Coming Soon!
Michelle Shoemaker

Accounting

Since coming to Duggan's One Hour Michelle has been a great asset. Starting in the call center, her dedication to details made her a great fit for our accounting department.
Terrie Black

Administrator

Hi, I'm Terrie Duggan Black administrator of Duggan One hour Heating and Air. After 20 years of being a programmer for the Thomson company, I along with my Tony were able to take over our family heating and air business. Along with my husband Randy and 2 sons, I have been able to carve out a home in McDuffie county. We enjoy the county life and are blessed living in the CSRA. Thank You for allowing us to serve you HVAC and electrical needs.
Peter Henry

HVAC Service Technician

Peter is originally from Jamaica, but moved to the United States as a teenager. He joined the U.S. Army in 1999. He served in two tours of duty in Iraqi: Operation Freedom 1 and Operation Enduring Freedom 3. Furthermore, he was honorably separated from the Army in 2006. He managed a Restaurant for 8 years, and decided to change careers and attended Everest Institute in San Antonio, Texas, graduating with as a Certified HVAC Service Specialist. He also completed his Electrical Certification from Lamson Institute. Peter is always ready to provide the very best in service with professionalism
Kyle Wilson

Maintenance Service

Description Coming Soon!