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Annapolis, MD
Annapolis, MD
Bringing Comfort Home
Annapolis HVAC Services
One Hour Heating & Air Conditioning® of Annapolis
4.8
Heating, AC & Furnace Repairs in Annapolis, MD
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
Michael Donnelly
12-02-2025
“Excellent service. Arrived within 2 hours of requested service. Fast ! Technician through checking all aspects of our AC / heat system isolating the problem to a single item. We were very happy with fees charged. Very fare. Tech professional, knowledgeable and liked our dogs. Always a good sign of personality. My new go to provider. 10 out of 10.”
Robert Klein
11-14-2025
“The only problem I had is the outraged prices for duct cleaning, mold removal device. I would never pay that much for those Addams.”
Bill S
10-31-2025
“I am very impressed by this company. Michael Geary did a great job. Chris and Donnie did a terrific job on the installation. Larsen was fantastic on finalizing the system and installing the thermostat. Very professional, thorough, and honest. Whoever owns this company does a great job of setting the example for a very good corporate culture.”
Bill S
10-31-2025
“Michael Geary did a great job. Very professional, thorough, and honest.”
Robert Bates
10-30-2025
“Tech was professional & did a good job. Between my hard of hearing & his English, we had a difficult time communicating. He did leave lights on & doors open in basement. I’m handicapped & can’t go up & down stairs.”
William Doucet
10-17-2025
“Very professional, explained all recommendations clearly.”
Bob
10-01-2025
“Technician was very friendly and thorough in his work.”
connor pfalzgraf
09-04-2025
“He was great! Very thorough and nice.”
Gregory Moyer
07-24-2025
“Chris Daily and his crew did an absolute amazing job installing my new Bosch heat pump system. I look forward to many years of service of the one hour technicians.”
John H
07-23-2025
“Stephen did a great job!”
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!
'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.
Financing Available!
Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.
Hours of Operation
We are available 24/7 to take your call for emergencies. For all other services, our appointment hours are:
Monday
24 hours
Tuesday
24 hours
Wednesday
24 hours
Thursday
24 hours
Friday
24 hours
Saturday
24 hours
Sunday
24 hours
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.
