Expert AC Services in Hacienda Heights, CA

When you live in Hacienda Heights, you know just how quickly California weather can change. From cold coastal mornings to hot, dry afternoons, your home needs a dependable heating and cooling system to stay comfortable no matter what the season brings. That’s where One Hour Heating & Air Conditioning® comes in. Our team provides responsive, professional HVAC services that you can count on year-round. Whether your air conditioner is blowing warm air or your heater refuses to start on a chilly night, we’ve got you covered. Our experienced team handles everything from routine AC services to emergency HVAC service—so your home stays at the perfect temperature, whenever you need it. At One Hour Heating & Air Conditioning® in Hacienda Heights, we deliver more than quick fixes. We offer lasting solutions, friendly service, and comfort you can trust.

Why Choose One Hour Heating & Air Conditioning® in Hacienda Heights?

We know that choosing a heating and cooling company is a big decision. That’s why we go above and beyond to make sure your experience is simple, stress-free, and reliable. We don’t cut corners. We don’t upsell. We just do things right, every time.

Here are a few reasons homeowners rely on our team:

We Maintain the Highest Standards – We don’t just meet expectations—we exceed them. From system installations to emergency HVAC service, we follow all codes and regulations using industry-leading best practices.
Honesty in Pricing – With our Straightforward Pricing® promise, there are no surprise fees. You’ll get clear pricing and a full explanation of your options before any work begins.
A Strict Code of Ethics – Our technicians operate with integrity, respect, and professionalism. We treat your home like it’s our own on every visit.
Reliable, Skilled Technicians – Our team is fully licensed, background-checked, and continually educated so we’re always up to date on the latest equipment and repair techniques.

Comprehensive Heating and Cooling Solutions

Your comfort shouldn’t come with complications. At One Hour Heating & Air Conditioning®, we service all major makes and models of HVAC systems. Our skilled team will help you choose the best solution to your problems—based on your home’s needs, not a bottom line. We don’t leave until the job is done right.

Our wide range of HVAC services includes:

We Serve Hacienda Heights and Surrounding Neighborhoods

As a locally owned and operated business, we understand the specific heating and cooling needs of homes throughout Hacienda Heights. We’ve worked in everything from ranch-style homes and townhouses to multi-level residences, so no matter what type of system you have, we know how to keep it running efficiently. Our team is just a phone call away and ready to help.

Areas We Serve:

City of Industry
La Habra Heights
Whittier
Rowland Heights
And more!

Dependable AC Services in Hacienda Heights

From emergency HVAC service to routine AC services and everything in between, One Hour Heating & Air Conditioning® is here to keep your home safe, comfortable, and running smoothly. We are proud to operate differently than other HVAC companies. Our team provides honest guidance, expert workmanship, and peace of mind—no matter what your heating and cooling services you need. If you’re looking for dependable heating and cooling services in Hacienda Heights, One Hour Heating & Air Conditioning® is a team you can trust. Call us today to schedule your service.

We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.82

(153825 reviews)

Adrián Gómez-Junco

in the last week

“After a terrible experience with another company that misdiagnosed my one-year-old Minisplit compressor as having 'toasted' electronic boards (with a $2,000 parts + labor quote and a refusal to install my warranty-covered replacements), I was incredibly frustrated. They even suggested I replace the entire system for $12,000! Finding a company willing to work on a Minisplit and install my own parts proved challenging. After 5 or 6 rejections, "One Hour Heating & Air Conditioning of Ellis County" was a breath of fresh air. They immediately agreed to help and sent a team the next day. The technicians quickly identified and fixed a problem with the electric line feeding the unit. Once power was restored, my supposedly broken compressor worked perfectly! I also had a great experience with Kortling and Brian. Highly recommend.”

Loraine Timpson

in the last week

“The care and service provided by Jordan was exceptional. He was pleasant, friendly, as well as helpful. My questions were answered, and the AC was inspected and thoroughly cleaned. He showed me pictures and the unit looks brand new!! While he was here, he even fixed my water hose which was badly leaking. I recommend this company to anyone who is looking for professional and reliable service. Ask for Brittany or Jordan to be sure you have the correct office/location. You WILL NOT be sorry.”

Sherry Waters

in the last week

“Excellent prompt service. CJ diagnosed the issue with out 10 year old AC unit, and guided us in the best course of action. We chose to replace the unit, and Dave and Uriel arrive the next day and expertly installed our new unit. The entire transaction was top notch, thank you for the professional service”

Nicholas Worley

in the last week

“They came out on time, they were affordable, and the technician was very professional and knowledgeable. Would recommend/use services again”

Breanne LaDuke

in the last week

“One hour heating and air conditioning is awesome! Every time I've had them come to my home for maintenance or to fix my units they've been great.”

Stancey Moore

in the last week

“Alex Prince was an amazing technician! From the moment he arrived, he was professional, respectful, and clearly knowledgeable. He took the time to thoroughly inspect my AC unit and walked me through exactly what was wrong, explaining everything in a way that was easy to understand. What really stood out was how patient and honest he was—he didn’t rush through anything and made sure I felt confident about the next steps. It’s rare to come across someone who genuinely cares about the customer experience, and Alex definitely does. I highly recommend him to anyone needing HVAC service!”

Paula Lewis

in the last week

“I recently had the pleasure of working with both Nick and Justin from One Hour Heating & Air Conditioning of Atlanta, and I couldn’t be more impressed with the service I received. Each technician came on different days and handled their responsibilities with the utmost professionalism and expertise. Nick was incredibly thorough during his inspection, clearly explaining what was going on with my HVAC system and ultimately handling the installation of a new air unit with care, efficiency, and precision. He made a potentially stressful situation feel seamless and manageable. Justin was just as impressive—prompt, courteous, and focused. He quickly diagnosed the issue he was assigned to address and walked me through every step with patience and clarity. His attention to detail and customer-first approach truly stood out. Both technicians represented the company in the best way possible. Their knowledge, professionalism, and genuine dedication to quality service left a lasting impression. I highly recommend One Hour Heating & Air Conditioning of Atlanta—and if you’re lucky enough to get Nick or Justin, you’re in excellent hands!”

Lillie Betts

in the last week

“Not only were we able to be seen the same day we called to have our AC inspected, we were able to get our new unit and other services completed/installed the next day! They were able to get everything done sooner than the original timeframe they gave us and walked us through any issues they encountered with to make sure we understood what happened and how they were going to fix it. We cannot thank Ricky, Chris, Collin and the other guys for all the help and service!”

Christina Brady

in the last week

“Kyle was so sweet, timely and knowledgeable! Thankful he went the extra mile to figure out a problem and communicate with me regarding the fix and even cleaned up the small debris that was made with my hvac maintenance!! I have been a client of theirs for almost 10 years now and refer folks to no one else!”

Jennifer Solas

in the last week

“I have a great experience with one hour air conditioning and heating! Robert was great. He came and he did the service in a timely manner and he told me about my air conditioner and took pictures so that I could visualize what he was talking about.”