
Air Conditioner Installation in Corona
An Experienced Team Delivering Reliable AC Replacements
When summer temperatures soar in Corona, having a reliable air conditioning system is necessary. With hot days that stretch on for months and the occasional bout of Santa Ana winds adding to the heat, keeping your home cool and comfortable is critical. That’s where we step in. At John Stevenson Plumbing, Heating & Air Conditioning, Inc., we deliver professional, hassle-free AC installation services tailored to Corona homeowners' and business owners' unique needs. Whether upgrading an outdated system, building a new home, or dealing with an emergency replacement, our experienced team can help you achieve peak comfort and efficiency.
We’ve proudly served the community since 1990, earning our reputation as a trusted partner for all things HVAC. Our deep local insights mean we understand the challenges of Corona’s climate and know how to design and install systems suited to your needs. Being a family-owned and operated company allows us to bring a personal touch to every project, building lasting relationships based on trust and care. Our NATE-certified, EPA-certified, and EPA-trained technicians perform every installation with meticulous attention to detail for optimal performance and longevity.
We also believe in transparency and long-term value; with upfront pricing, you won’t encounter hidden fees, and you’ll know what to expect throughout the service. Beyond that, we prioritize convenience and reliability, offering same-day appointments, flexible scheduling, and emergency services so you can get the help you need whenever needed.
Call us at (760) 276-6690 or reach out online to schedule an AC installation. Our team is ready to provide professional advice, answer your questions, and help you select an ideal cooling solution for your home.
From Assessment to Comfort: Our Installation Process
Installing a new air conditioning system should be as effortless for you as possible. Our step-by-step process allows us to address every detail and deliver a lasting solution to keep your space cool.
We make that happen through:
- Property and needs assessment – Every installation begins with a detailed evaluation of your home’s size, insulation levels, and cooling requirements. This step enables us to recommend a system that matches your space and energy efficiency goals.
- Discussion of options – We present you with tailored AC system options, providing a clear explanation of the features and benefits of each. This collaborative approach ensures that you’re well-informed about your investment.
- Customer approval – Before we begin, we ensure you fully understand the recommended system and provide upfront pricing, so you know what to expect.
- Professional installation – Backed by decades of experience and a team of NATE-certified, EPA-certified, and EPA-trained technicians, we install your air conditioning system with precision and care. Our team’s knowledge and skills contribute to a seamless process, minimizing disruption to your home.
- System and safety check – Once the installation is complete, we thoroughly test the system to confirm it’s running at peak performance and meets safety standards. This meticulous process safeguards your comfort and peace of mind.
- Post-installation check-in – Our commitment doesn’t end when the work is done. We follow up to confirm your complete satisfaction and answer any questions you might have about your new system.
When you choose us, you benefit from the skill and dedication of professionals who bring years of insight into every job. We are known for our attention to detail, allowing each installation to be as efficient as possible.


Don’t Miss Out on These Savings!
Is It Time for a New AC? Signs You Might Need an Upgrade or Replacement.
Air conditioning is essential to staying comfortable through Corona’s long, hot summers. Still, even the best systems don’t last forever. If your AC struggles to keep up or is causing recurring problems, it might be time to consider a replacement.
We can thoroughly evaluate your system to help you decide whether to repair or replace it.
Common signs that upgrading to a new unit could be the most efficient option include the following:
- System age – Air conditioners typically have a 10-15-year lifespan. If your system is approaching or exceeding this range, it may no longer operate efficiently or effectively, making an upgrade worthwhile.
- Frequent and costly repairs – When repair bills start piling up or your system breaks down regularly, investing in an aging unit becomes more expensive than replacing it.
- Rising energy bills – Older or declining systems require more energy to function, leading to higher utility bills. Upgrading to a newer, energy-efficient model can lower your monthly expenses.
- Inconsistent cooling or hot spots – Struggling with uneven temperatures, inadequate cooling, or specific areas of your home that never seem to reach comfort? That inconsistency could signal that your current unit isn’t properly sized or is starting to fail.
- Strange noises or smells – Unusual sounds like grinding, banging, or whining, as well as musty or burning smells, can indicate serious issues within your AC system that might warrant replacement.
- Use of R-22 refrigerant – If your air conditioner relies on R-22 refrigerant, which is being phased out due to environmental concerns, replacing the system is wise for long-term reliability and compliance.
If you're experiencing these issues, it might be time to consider a new AC unit installation. Our technicians perform a complete system check to provide tailored recommendations aligned with your comfort needs and budget.
Call for an AC Installation Estimate!
At John Stevenson Plumbing, Heating & Air Conditioning, Inc., we believe that exceptional service goes beyond the installation itself. It’s about creating a seamless experience for every customer, focusing on comfort and satisfaction at every step of the process. Backed by decades of experience and knowledge, we’ve built a reputation as a trusted source for high-quality air conditioning services in Corona.
Being a family-owned and operated company, we take immense pride in the values that guide our work. Trust, integrity, and personalized service are at the heart of everything we do, qualities you’ll feel from the moment you contact us until long after your new AC system is installed. Welcoming a service provider into your home requires confidence, so our team is committed to treating your space with care and respect, just as we would our own.
A cool, comfortable space is just a phone call away. Contact us at (760) 276-6690 to schedule an appointment.

What Makes Us a Community Name?
Benefits of Working with Our Expert Team
Frequently Asked Questions
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What's a Pre-Installation Evaluation? Does My New A/C Need One?In short, yes. A first step is conducting an energy audit to determine the energy load for your home. Calculating the load tells the experts at John Stevenson Plumbing, Heating & Air how much heat your house gains throughout the day & what size air conditioner will work best to keep it cool. This is critical as most A/C installation issues stem from an improperly-sized air conditioning unit.
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Is Your Home's Ductwork & Design Able to Handle a New A/C System?Often your old, existing ducts can’t handle the airflow of a newly installed air conditioner. Any upgrades to accommodate a new system will likely increase the cost to install an A/C unit, but will ultimately help you avoid costly, high energy bills & hot rooms in the future.
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What Type of Central A/C Unit Should I Install?Here’s where the load calculation comes into play, as you want to pick the right size A/C unit to install – either too big or too small of an A/C unit can lead to costly repair or replacement down the road. Call the HVAC professionals at John Stevenson Plumbing, Heating & Air, they’ll know which A/C unit is perfect to install in your home at the lowest price.
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How Much Does it Cost To Get My Air Conditioning Unit Installed?The price of replacing your air conditioning unit depends a lot on the size of the unit you need to fit the size of your house. But no matter what unit you pick out for your home, ask an expert at John Stevenson Plumbing, Heating & Air for fast answers & reliable service. Trained technicians can come to your house to give you an upfront, transparent installation report, as well as consult you on what unit your home will need.
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Why Would My Air Conditioner Stop Working?Breakdown of your home A/C unit can stem from many different things, from an electrical issue to the compressor being misaligned or broken. Luckily for you, the team at John Stevenson Plumbing, Heating & Air is trained in diagnosing the problem and presenting you with a competitive price to fix or replace and install your new A/C unit.
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Who Can Replace my A/C Unit?Our technicians at John Stevenson Plumbing, Heating & Air can replace your air conditioning unit. An A/C unit is something that will be a part of your house for many years, and it is important that it is installed correctly to keep your energy costs low and your unit working at top performance. Our team at John Stevenson Plumbing, Heating & Air has top-quality, highly-trained technicians that will come to your house to help you to make an informed decision on which unit to buy. Then, we can properly install your air conditioning unit.

A Homeowner's Best Friend
Expertise isn't the only thing we have gained over the past three decades - check out our loyal customer base!
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“I can't say enough great things about Patrick and the whole John Stevenson company.”- Holly G.
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“Great job, the technicians explained everything so that I could make the best decision for my home.”- Victoria J.
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“I have been using John Stevenson’s services for about 7 years now and am really happy with all the services provided so far: new heater installation and yearly checkup/tune-up; new tankless water heater installation and yearly flush.”- Flavia P.
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“The thing about John Stevenson Plumbing is that it is simply the best company of its type in the region. The technicians are smart, personable, always courteous and helpful, knowledgeable and fun to get to know. They do their jobs on time and on budget and”- John H.
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“Luis was great! Fixed a leak in a gas line to our Guest House. Work was done quickly and professionally with excellent communication to me about the process.”- Pam L.
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“I have used John Stevenson numerous times over the past few years for both plumbing and heating issues.”- Phyllis S.
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“Scheduling was easy. Received a call 30 minutes before technicians arrived. John, the lead man explained the work to be done. He and his apprentice Gilbert were courteous and friendly.”- Phil H.
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“We really enjoyed the experience and the professionalism from John Stevenson Plumbing. Thomas came out and did the initial inspection and troubleshooting of our furnace.”- Nancy C.
