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Columbia Heating & Cooling Experts

Always On Time...

  • ‘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.

Get the Best Service Around

Our Happy Customers

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.

  • “Gilmer was excellent and very professional! Gave a fair assessment of our existing system and provided valuable recommendations for next steps.”

    - John P | Ellicott City,
  • “Eli was efficient, friendly and most importantly, honest!!! I really appreciated his perspective on my HVAC health and performance. Would love to have him back to service my system again!”

    - Dave F | Jessup,
  • “Very professional and I felt honest with me which is a rarity these days. Very respectful of me and my home.”

    - Joyce L | Glen Burnie,
  • “Malik was great. friendly, courteous, on time. Excellent knowledge and was happy to share, A+!”

    - Charlie D | Jessup,
  • “Larson Kimble is an amazing A/C technician. He’s very knowledgeable and willing to take the time to answer all of your questions about the repair process. I will definitely request Larson if I have ...”

    - Jennifer B | Jessup,

Columbia HVAC Services

Elite Columbia Services from a Trusted Local Team

One Hour Heating & Air Conditioning of Houston is the premier provider of Columbia HVAC services. Our technicians are some of the most highly-trained, well-equipped experts you’ll ever find, but what really sets us apart is our commitment to good, old-fashioned customer service.

Whether we are providing routine maintenance, installing a new system, or showing up at 3 a.m. to repair a broken part, the only priority of our Columbia HVAC technicians is your comfort. That means reliable repairs, of course, but it also means ensuring that our technicians are trustworthy, well-trained, and regularly drug-tested.

When you’re looking for old-school service with new-school technology, call One Hour of Houston!

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100% Satisfaction Guaranteed

Special Offers

  • One Hour Air Conditioning and Heating® of Columbia Free Replacement Estimates Upgrade Today and Save on Your Energy Bills! One Hour Air Conditioning and Heating® of Columbia Expires: Dec 31, 2022 Print

Why Our Columbia HVAC Services Are Trusted

People call our Houston heating and AC experts because we care about quality—so much so that we back our work with numerous guarantees to keep our customers happy and comfortable in their own homes. For starters, we offer a 100% satisfaction guarantee for up to two years after your service. Out of respect for your time, we also have a punctuality guarantee: “Always On Time...Or You Don't Pay A Dime!®” With other guarantees and promises behind our results, you’ll never feel anything but in control and taken care of.

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Frequently Asked Questions

  • 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 with several lending partners 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.
  • 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.

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