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Service Area

Serving Placer, El Dorado, and Sacramento Counties

One of the longest privately owned HVAC Company in Northern California

Ray O. Cook Heating & Air is proud to call Roseville and Rancho Cordova home, which is why our commitment to exceptional HVAC service extends throughout the Greater Sacramento region and beyond. We understand that a comfortable home is essential, so we're dedicated to serving clients in every corner of the area, from bustling city centers to quiet suburban neighborhoods. If you don't see your neighborhood below, give us a call, we will do our best to serve you.

We offer residential heating and cooling services to clients in:

rocklin hvac service

Why Choose Ray O. Cook Heating & Air?

We've been serving our community since 1947, earning trust through exceptional service. Enjoy peace of mind with our fully insured operations and satisfaction guarantee. Plus, we offer flexible financing, free estimates, and same-day service for your convenience. Choose Ray O. Cook Heating & Air for quality, value, and unmatched service for all your HVAC needs.

Trusted Local Experience

With years of hands-on expertise, Ray O. Cook Heating & Air understands the unique comfort needs of local homeowners and delivers reliable solutions you can count on.

 

Honest, Straightforward Service

No upsells, no pressure, just clear communication, accurate diagnostics, and recommendations that truly fit your home and budget.

Fast & Reliable Response Times

When your comfort is on the line, you need a team that shows up. Expect prompt service and dependable scheduling to get your system back up and running quickly.

Quality Workmanship That Lasts

From repairs to full system installations, every job is done right the first time using proven techniques and high-quality equipment for long-term performance.

DID YOU KNOW YOU CAN GET AN HVAC SYSTEMREPLACEMENT QUOTE ONLINE?

ANSWER FIVE-QUICK QUESTIONS FOR YOUR FREE REPLACEMENT ESTIMATE.  NO OBLIGATION.

Hear From Our Happy Customers

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Megan Hendricks profile picture
Megan Hendricks
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Very helpful! Showed me a reusable filter I had no idea I was supposed to be cleaning.
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Joshua Longo profile picture
Joshua Longo
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Gino was amazing and knowledgeable.
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Stephen Bullock profile picture
Stephen Bullock
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Gino was incredibly thorough, going above and beyond to ensure we understand what he was doing and the steps we could take to prolong the life of our AC. Excellent work 😃
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David Johnson profile picture
David Johnson
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I scheduled a winter checkup with Ray O. Cook to ensure my heater was functioning for the Fall/Winter season. It was easy to schedule and I was able to get an appointment the next day. The service technician, Patrick arrived within the two hour timeframe he was scheduled. I have a prepaid maintenance plan so there was no further charge for this service. Patrick did identify a problem with soldering that was wearing out on a circuit board. It didn't need to be replaced at this time, but may eventually fail. I recommend having Ray O. Cook inspect you A/C and heating system to ensure it's maintained properly. Their technicians are well qualified and their prices are competitive.
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Kirk Stenroos profile picture
Kirk Stenroos
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Well, personable, thorough, smiled, efficient, answers questions like a person with no attempt to impress you with knowledge, just answers, perfect.
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Don Panec profile picture
Don Panec
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My wife, Susan, and I were extremely satisfied with the professional service, attention to detail and expertise that Gino, the certified service technician from Ray O. Cook Heating and Air displayed on our service call August 4, 2026. Gino was courteous, on time, hard working and took pride in being able to thoroughly inspect and recommend needed repairs to the 4 HVac systems that provide cooling to our home. We were especially surprised to learn that Gino treats each customer’s home as if it were his own home or his mother’s home and provides a high level of service and attention to detail in all that he does. By the end of the day, after Gino had completed servicing on all 4 of our systems, Susan and I had no reservations about signing up to be Ray O Cook Service Club members and have our HVAC and Heating units routinely serviced per their annual contract. We feel very fortunate to have discovered this amazing company.
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Robert Boehm profile picture
Robert Boehm
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Gino was professional, personable, and experienced! He took his time to diagnosis and assess what was occurring in addition to hearing my concerns about the problem before acting.
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Julie Peterson profile picture
Julie Peterson
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Gino was prompt, polite and professional. He was very thorough and informative. Everything he suggested was based on photos and evidence he shared with us.
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FAQ's About Heater Repair in Roseville, CA & The Sacramento Valley

What are common signs of a faulty heater?

Some of the most common signs that you may need heater repair in Roseville, CA include uneven heating from room to room, a sudden spike in your energy bills, or unusual noises such as grinding, banging, or rattling coming from your heating system. You may also notice your heater turning on and off more frequently than normal. If you experience any of these issues, it’s best to schedule a professional heating inspection right away to avoid a complete system breakdown and more costly repairs.

How long does a typical furnace repair service take?

Most common heater repairs, such as replacing a thermostat or a small component, can often be completed in a single visit, typically taking one to three hours. More complex issues involving major component replacement or extensive diagnostics may require more time, which we will clearly communicate upfront.

What factors affect the cost of heater repair ?

The cost of heater repair in Roseville, CA depends on several factors, including the complexity of the problem, the specific parts needed for the repair—such as a fan motor, ignition system, or pressure switch—and the overall age and condition of your heating system. Older or poorly maintained systems may require more extensive work. To ensure peace of mind, we provide clear, upfront pricing and a detailed explanation of all recommended repairs before any work begins.

Do you offer 2/7 furnace repair?

We prioritize your family's comfort and strive to offer prompt solutions. We provide same-day service appointments whenever possible for urgent heating issues, ensuring that your most critical repair needs are addressed quickly, especially during cold periods.