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AC & Heating Repair Services in Harford County

Keeping You Comfortable All Season Long

When it comes to your HVAC system, you need to know that the team you trust to provide repairs and maintenance is the best. There is no compromising when it comes to the comfort of your home and your family. At One Hour Air Conditioning & Heating® of Harford County, we are dedicated to providing you with unrivaled services for your heating and cooling systems. Our Harford County HVAC company is the leading provider of heating and cooling services and our team is dedicated to earning your trust, providing reliable services, and restoring comfort to your home quickly and efficiently.

We offer highly trained HVAC technicians who have extensive experience and provide services that are backed by our 100% satisfaction guarantee. Each of our team members is background checked and drug tested to make sure that you have the peace of mind that you deserve when you are waiting for your system to be fixed. One Hour Air Conditioning & Heating® of Harford County also offers customers our on-time guarantee, which simply promises that we will always be there right at our scheduled time, and if we aren’t, your service is free.

Always Here for You

HVAC troubles don’t stick to a 9 – 5 schedule, so neither do we. One Hour Air Conditioning & Heating® of Harford County is here for you whenever you need us. With our ‘round-the-clock availability, you can count on One Hour to be there when emergencies arise. When your heating or cooling unit isn’t working, it doesn’t take long for your home to become uncomfortable. Just give us a call and rest assured that help is on the way.

In addition to heating and cooling services, our Harford County AC & heating repair team can assist you with your indoor air quality, air ducts, and thermostats. All of these components work together to keep you comfortable, and we can assess them all to make sure your entire system is in great shape.

Reach out to us today at (301) 321-7231 to request an appointment!

Always On Time... Or You Don't
Pay A Dime

We Have A Reputation For Being Punctual, Friendly, and Knowledgeable

    “I just want to thank you for the service you've provided over the years. Recently, Adam Gill came out to give me my regular service examination of my heating system. Just as he was the last time he ...”

    - Wayne Whaley

    “I want to thank Steve, Shawn, Matt, and Justin for a superb job replacing my air conditioner and heating unit. They were very thorough and did not mind answering my questions about the new units. I ...”

    “In the pouring rain Austin came and was outside thawing out 8" of ice that had built up... Problem solved and he only charged me $99 total!! I trust One Hour AC/Heating.. they're like no other.”

    - Susana C.

    “Jonathan W. was personable, friendly, professional, thorough, honest in his evaluation and worked hard! You have a jewel in this young man.....he is a keeper!”

    “Hope is the epitome of excellence in customer service and professionalism. She explained the process of repairing my A/C every step of the way and gave me what the estimate before each action. I ...”

    - Jonathan P.

    “I want to thank One Hour for resolving my A/C unit problem. Everyone that came out was amazing. My husband and I are so impressed with their commitment to make sure that we were happy and pleased with ...”

    - Evelyn
  • Areas We Serve
    • Aberdeen
    • Aberdeen Proving Ground
    • Abingdon
    • Baldwin
    • Bel Air
    • Belcamp
    • Benson
    • Charlestown
    • Chase
    • Churchville
    • Colora
    • Conowingo
    • Darlington
    • Edgewood
    • Fallston
    • Forest Hill
    • Fork
    • Gunpowder
    • Havre De Grace
    • Jarrettsville
    • Joppa
    • Kingsville
    • North East
    • Perry Point
    • Perryman
    • Perryville
    • Port Deposit
    • Pylesville
    • Rising Sun
    • Street
    • Upper Falls
    • White Hall
    • Whiteford
  • Zip Codes We Serve
We may service additional communities. Please contact us for more information.
  • Google 5 Stars
  • Heroes Club
  • BBB Vertical Image
  • Air Conditioning Contractors of America
  • Energy Star
  • 24/7 Emergency Services
  • PHCC Red Logo
  • U-Win Satisfaction Guaranteed

Here for You Around the Clock

Our Comfort Specialists are available to help, no matter the time of day. If you're in need of emergency services, we've got you covered 24/7.

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