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AC Installation

Air Conditioner Installation in Temecula

Professional AC Installation to Keep Your Home Cool

Temecula’s summer heat doesn’t pull any punches, with triple-digit days making dependable air conditioning more of a necessity than a luxury. Whether you're located near Old Town Temecula, tucked away in Wine Country, or living in a modern home near Redhawk or Paseo del Sol, having an AC system you can rely on is key to staying comfortable—and safe. That’s where John Stevenson Plumbing, Heating & Air Conditioning, Inc. comes in.

We’ve proudly served the community since 1990. As a family-owned business, we’ve built relationships based on trust, reliability, and consistent quality. Our EPA-certified and NATE-certified technicians follow strict safety and installation standards to help your new AC system run efficiently. We're fully licensed and insured and don’t believe in surprises—just upfront pricing and straightforward, honest advice to help you make informed decisions.

When you choose us, you get more than just an AC installation. You get a team committed to doing the job right, with flexible scheduling, emergency availability, and fast, same-day installation options when possible. Whether replacing an outdated system or installing a new unit in your home, we aim to provide energy-efficient solutions to match your comfort needs and budget.

Contact us at (760) 276-6690 to schedule your AC installation and stay ahead of the next heat wave.

Seamless Installation for Long-Term Comfort and Efficiency

Choosing the right air conditioning system isn’t just about staying cool today—it’s about securing long-term comfort, efficiency, and value for your home. We deliver professional AC installation services tailored to homeowners who want energy-efficient solutions that will perform reliably for years. 

We work with most major brands and models, giving you a wide range of high-performance options aligned with your home’s size, energy goals, and budget.

Our process is designed to deliver results with professionalism, precision, and a focus on lasting performance:

  • Property and needs assessment – We evaluate your home thoroughly, considering square footage, insulation quality, window placement, layout, and other factors that impact system sizing and performance in the area’s hot, dry climate.
  • Discussing your AC system options – Our team walks you through your options, explaining the benefits of various models and helping you choose an energy-efficient system that fits your home and financial plan. Whether in a single-story house near Margarita Road or a larger two-story property in Wolf Creek, we help you make a wise, future-focused investment. We also guide you on available rebates and energy efficiency incentives.
  • Your approval and scheduling – Once you've selected the right system, we provide a clear quote and schedule the installation at a time that works for you. Our team communicates throughout the process so you know what to expect.
  • Professional and efficient installation – Our licensed and insured technicians carefully handle every part of the installation, from properly sizing equipment to sealing ductwork and verifying electrical connections.
  • System and safety check – After installation, we perform a complete system test to confirm that your new AC unit operates safely and efficiently. We verify airflow, thermostat function, and cooling performance under real conditions.
  • Post-installation check-in – We follow up with you after the installation to make sure everything is running smoothly and answer any remaining questions. Your satisfaction is our priority, and we stand behind our work.

Backed by decades of experience and a focus on dependable, quality service, we’re here to help you future-proof your comfort.

To help you protect your investment and maintain system performance, we offer long-term support through Charlie’s Care Club. Membership provides priority scheduling, exclusive discounts, and regular system maintenance for your cooling equipment to extend the life of your system and prevent costly breakdowns.

Don’t Miss Out on These Savings!

  • 10% OFF All Military, First Responders & Seniors

    Call John Stevenson Plumbing, Heating & Air for details. Offer valid on service and repair. Receive 5% off all installation services.

  • Free Consultation

    FREE in home consultation for a Moen® Flo Smart Water Monitor and Shutoff System

Benefits of a New, Professionally Installed AC System

Having trained professionals install your air conditioning system does more than keep your home cool. It contributes to efficiency, safety, and performance. 

Our team combines decades of hands-on experience with industry-leading credentials to do the job correctly. From proper system sizing to secure electrical connections, we don’t cut corners. Our commitment to detail helps you get the most out of your investment, especially in a climate like Temecula’s, where high summer temperatures demand reliable cooling.

When you choose professional installation, you gain advantages that go beyond immediate comfort:

  • Enjoy consistent comfort through the hot summers – With correct installation and proper airflow balancing, your home can maintain a steady indoor temperature, even during extended heat waves.
  • Lower energy bills with energy-efficient technology – We install modern, high-efficiency systems that use less energy to cool your home. Proper installation ensures that efficiency ratings translate into real-world savings.
  • Improve air quality for a healthier home – A correctly installed AC system filters out airborne pollutants more effectively, supporting better indoor air quality and helping to reduce allergens and humidity.
  • Increase property value – An upgraded AC system adds value to your home, especially when installed by a licensed, reputable company known for quality work.
  • Quieter operation – Precision installation means fewer vibrations, tighter seals, and reduced system noise. The result is quiet, unobtrusive comfort in every room.

A new AC system is more than an upgrade—it’s peace of mind, backed by a company that stands behind every installation.

Get Reliable AC Installation

When installing a new air conditioning system, you need a company that delivers dependable service and understands what Temecula homeowners expect regarding quality and comfort. 

At John Stevenson Plumbing, Heating & Air Conditioning, Inc., we provide AC installation services prioritizing safety, performance, and reliability. Backed by over three decades of experience and a team of highly skilled technicians, we’re committed to helping you choose and install a system that meets your needs today and continues to perform well for years. Whether replacing an outdated unit or installing a system in a new build, you can count on us for honest advice, upfront pricing, and top-tier workmanship.

Call us at (760) 276-6690 or contact us online to schedule an AC installation service and enjoy the comfort you can trust all summer.

What Makes Us a Community Name?

Benefits of Working with Our Expert Team
  • Drug Tested & Background Checked Technicians
  • Upfront Pricing — You’ll Never Pay More Than You’re Quoted
  • Expert Advice From Professional, Licensed and Certified Technicians
  • We Stock Enough Parts in Our Trucks to Do 93% Of Repairs on the Spot
  • Flexible Scheduling - Ask About Same-Day or Emergency Service
  • 5 Star Service Guarantee Includes Service Tailored to Your Needs & Budget

Frequently Asked Questions

  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.

Ready to Get Started?

Call (760) 276-6690 Now!
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Always Close By Providing Service 6 Days a Week. Monday - Sunday, 8:00 AM - 7:00 PM

You can rely on us for fast, effective services. As part of our 5 Star Service Guarantee, we promise to value your time, provide knowledgeable technicians, and dedicate ourselves to your full happiness with all of our services.

Serving San Diego County and Orange County 

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!
    “Such a great experience!”
    “I can't say enough great things about Patrick and the whole John Stevenson company.”
    - Holly G.
    “Great Experience!”
    “Great job, the technicians explained everything so that I could make the best decision for my home.”
    - Victoria J.
    “Highly Recommend!”
    “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.
    “Very Knowledgeable!”
    “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.
    “Definitely Recommend!”
    “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.
    “Excellent Work!”
    “I have used John Stevenson numerous times over the past few years for both plumbing and heating issues.”
    - Phyllis S.
    “Very Pleased!”
    “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.
    “Extremely Professional!”
    “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.