One Hour Heating & Air Conditioning
Call Us Today! (800) 893-3523

Emergency HVAC

24/7 HVAC Repair & Service , Maryland

For urgent HVAC needs, One Hour Heating & Air Conditioning offers 24/7 emergency services. Our rapid response team addresses heating and cooling emergencies, providing reliable solutions when you need them most. At One Hour Heating & Air Conditioning, we're committed to restoring your comfort swiftly and effectively, any time of day or night. Plus, our emergency HVAC services are backed by our 100% guarantee!

HVAC problems can’t wait for business hours. For emergency heating and cooling help and the surrounding areas, call or text One Hour Heating & Air Conditioning at (800) 893-3523.

  • Quality Service With Peace of Mind

    We offer guarantees so that you are comfortable and confident when contacting our technicians.

  • Safety & Reputation

    We maintain a clean, safe, respectable, and reputable place of business that reflects the high standards of our brand.

  • Integrity

    We are forthright and truthful with customers, employees, vendors, and other stakeholders. We keep our promises.

What Our Happy Customers Have To Say

  • “ Mike P was extremely knowledgeable helpful and patient he took his time to check out our system and to see what was wrong and gave us options for repair. Truly appreciate all his help.”

    Majko Veit
  • “ Jose was very helpful and professional. He warned me not to turn on the AC too soon after having the heat on to service the furnace.”

    Leona G.
  • “ Our service technician, James Franklin, was courteous, friendly, helpful, and very knowledgeable.”

    William S.
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Count On One Hour®

  • ‘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.
Mr. Appliance technician showing fridge issue
Frequently Asked
Questions
  • What is HVAC?

    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 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.
  • 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.