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 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.

Bringing Comfort Home

With Expert AC Services

One Hour Heating & Air Conditioning® of Cedar Park

4.9

(200 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Cedar Park, TX

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

(200 reviews)

Cedric Tu

06-23-2025

“I called one hour heating and air about my AC situation and they came out immediately. Josh and Devonte Accessed the problems on the spot and recommended solutions. They were able to fix my outdoor unit but also recommend long term solutions. Will be using them in the future!”

Michael Lamonica

06-22-2025

“A/C stopped cooling Saturday night. They were out here an hour after I called Sunday morning. Very professional and knowledgeable. Highly recommend.”

Shlomi Harif

06-18-2025

“Joshua was fast, thorough, and more than prompt. Awesome fix!!”

Beth Wood

06-18-2025

“Jacobi, a service technician, came to my house to do an A/C service check up. He was very Professional, Knowledgeable, Friendly, and Kind. I was very impressed with this young man and I will definitely use one hour heating and air conditioning when I need a technician again! I 100% recommend this company! Thank you Jacobi!”

Crystal Moreno

06-17-2025

“Amazing company. Jamie was very knowledgeable and informative after his inspection. He was able to provide me with great details on all the issues as well as answer all my questions. They are very competitive and offered great financing. I definitely recommend this company if you are looking for any AC Unit services.”

Ken Moncebaiz

06-14-2025

“Yessssss… I finally found a company that I can Trust in the A/C world. This young man rang the door bell on time amd w complete enthusiasm. I literally showed him thru the house in 2-3 min. And I had to leave for an appt. Within 2 hours he had me up and running and with a complete diagnosis of my issues. Parts are now ordered and we’re back to feeling like an ice cube inside of our home. Thank you Jesus for aligning me with this company w integrity and professionalism KenM”

Josh Taylor

06-10-2025

“Great, quick service. Brent was on time and super helpful and knowledgeable about what went wrong with my system.”

Michael Puglise

06-06-2025

“I actually had One Hour do some work last year and they were out again this year. I really appreciate the fact I can call these guys and they'll show up the same day. That really helps, especially in this Texas heat. I had the same technician, Brent, nearly exactly a year later. He's patient, answers any questions I have, gives me tips on how to maintain the system and got me back up and running. I'll keep coming back here for my HVAC needs because I can depend on them. Im giving the 5 star specifically for Brent. I appreciate the business model and always getting there in a timely manner, their costs are just higher than most others.”

Jordan S

06-04-2025

“Brent Bradley was great! Did great work and super nice and informative. Really is someone you can trust to help with ac issues!”

Matthew Gideon

06-02-2025

“Brent Bradley did a great job getting my ac back online quickly!”

Special Offers

Mention these discounts at time of service

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Seniors Discount 10% off Repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
First Responders Discount 10% off Repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
Veterans Discount 10% off Repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

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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.