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

(161 reviews)

Heating & Air Conditioning

Services By One Hour

View More Services

Two One Hour Heating & Air Conditioning technicians standing confidently in front of a service van.

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 Knowledgable

4.9

(161 reviews)

Sarah Rice

03-26-2025

“Always professional, on time and easy to work with! Highly recommend.”

Harry DuRette

03-25-2025

“Great service from Brent. Really helped me getting my house cool.”

TAE ATX

03-20-2025

“Consistently impressed with One Hour as an operation and a team. Brent has been an incredible tech and Ricky has been such an amazing manager and piece of operations. He’s been so good and is spoken of so highly by his techs that I’ve asked to setup for coffee to get some pointers in my own business game. At our last inspection, I went out of my way to ask for an extra card so I could refer another business owner!”

Gil jv

03-20-2025

“Not just professional but the human touch makes Joshua a great service provider. I am very happy on how he was able to walk me through the situation and options to get the job done. Thanks.”

Mathew Stubbs

02-28-2025

“Mr. Brent with One Hour Heating & Air Conditioning was amazing! He not only was extremely knowledgeable, but also very thorough with assessing our A/C. He was very professional, and I HIGHLY RECOMMEND him to anyone that is having Heating & A/C concerns. Thank you!”

Jaime Canelos

02-25-2025

“Great service at a very reasonable price. The technician was incredibly knowledgeable and professional. I will definitely use them again.”

Sid Wilson

02-22-2025

“Henry was very personable and very friendly person to work with and very caring about the need that we had at hand he was very professional and gave us very precise details about going forward what we needed to have done we think him for his honesty and integrity he is an excellent technician”

Dmitry Dulko

02-15-2025

“Brent did an awesome job during maintenance visit, checked all AC and heating units, run the tests and gave good advices on how to maintain the system in a good health. 5 stars!”

Jacob Caylor

02-09-2025

“I was so impressed with the service from Joshua! He made such a great impression and took time to explain every part of the system, the malfunction, and how it could be repaired. He fixed the problem and the bill was even better than I expected. After fixing the issue, he examined the now functional system to identify anything else that could go wrong in the near future. Thanks Joshua!”

Syl

02-07-2025

“I called One Hour Heating Air Conditioning and they had same day service. Henry Heinisch came he introduced himself and asked what the problem was. He explained to us what needed to be done for it to work properly. He gave us options as well. His customer service was exceptional. I will definitely will be using them in the future. Thank you Henry.”

Special Offers

Mention at time of service

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.

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.