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Maybe your current air conditioner is more than fifteen years old and struggling to keep up with the brutal Tempe summers. Perhaps you have added a room, finished a garage, or simply grown tired of uneven cooling and steadily climbing energy bills. Whatever brought you here, choosing to install a new air conditioning system is one of the most significant decisions you can make for your home in Tempe, AZ. It affects your comfort every single day, your monthly expenses, and the long-term value of your property. At Four Seasons Home Services, we treat every installation as a chance to get things right from the ground up.

Getting the Load Calculation Right the First Time

The single most important factor in any successful air conditioning installation is proper sizing. In Tempe, where outdoor temperatures regularly push past 110 degrees, an undersized unit will run without stopping and still fail to cool your home. An oversized unit brings its own problems. It cools the air quickly but shuts off before it removes humidity, leaving your home clammy and forcing the compressor to cycle on and off in a way that wears down components years before their time.

To avoid these outcomes, we perform a detailed Manual J load calculation before recommending any equipment. This process examines your home from every angle: square footage, ceiling height, insulation levels, window placement and glazing, sun exposure, and even the number of people who live there. A single-story ranch home with newer double-pane windows carries a very different cooling load than an older two-story house with large west-facing glass. By measuring these variables precisely, we specify a system that matches your home rather than guessing based on square footage alone.

How We Handle Each Installation

A clean, careful installation matters just as much as the equipment itself. Even a premium air conditioner will underperform if the ductwork leaks, the refrigerant charge is wrong, or the electrical connections are sloppy. We treat every step of the process with the attention it deserves, and we walk you through what to expect before we begin.

Our typical installation follows a clear sequence so that nothing gets overlooked and your home is protected throughout the work.

  1. Site assessment and equipment selection: We confirm the load calculation, inspect existing ductwork, and choose a system with the right capacity and efficiency rating for your needs.
  2. Safe removal of the old system: We recover old refrigerant according to environmental regulations and clear out worn components without damaging your home.
  3. Preparing the space: We repair or seal ductwork, check the condensate drain path, and make sure the electrical supply and disconnect meet current code.
  4. Setting and connecting the new unit: We level the condenser pad, mount the air handler or furnace coil, braze the line set, and pull a deep vacuum to remove all moisture and non-condensable gases.
  5. Charging, testing, and verification: We weigh in the exact refrigerant charge, verify airflow and temperature split, and confirm the thermostat controls everything correctly.

Before we leave, we show you how the system operates and answer any questions. We want you comfortable not only in temperature but in understanding what we installed and why.

Understanding the Technical Details That Matter

When you shop for a new air conditioner, you will encounter a handful of specifications that directly affect performance and operating cost. Understanding them helps you make a confident choice rather than relying on marketing alone.

SEER2, the updated Seasonal Energy Efficiency Ratio, tells you how efficiently a system converts electricity into cooling across a season. In a climate like Tempe’s, where the compressor runs for many months a year, a higher SEER2 rating can produce meaningful savings on your utility bills. We help you weigh the upfront cost of a higher-efficiency unit against the long-term savings so the decision fits your budget and your home.

Other specifications deserve attention as well, and we explain each one in plain terms during your consultation.

  • Tonnage: the cooling capacity of the system, where one ton equals 12,000 BTUs per hour, matched precisely to your load calculation.
  • Compressor type: single-stage, two-stage, or variable-speed compressors, with the latter delivering quieter operation and steadier temperatures.
  • Refrigerant type: newer systems use modern, environmentally responsible refrigerants that meet current standards.
  • Airflow design: proper duct sizing and blower settings that deliver even cooling to every room.

These details are not just numbers on a spec sheet. They shape how your home feels on the hottest afternoon of July and how much you pay to keep it that way.

Installations for Every Kind of Home and Situation

No two projects are identical. We install complete central systems in new construction and existing homes, replace aging units that can no longer keep pace with the heat, and add capacity when a remodel or addition changes the cooling demands of a space. We also help homeowners who want to upgrade from an outdated, inefficient system to something that will lower their bills and run more quietly for years to come.

Beyond Tempe, we serve homeowners throughout Cave Creek, New River, Sun City, Deer Valley, Paradise Valley, Arrowhead Ranch & Anthem, AZ with the same standard of care. Whether you own a small condo, a sprawling family home, or a property you rent out, we tailor the system and the installation to fit. Our 24/7 emergency service means that if a failing system leaves you without cooling, we are ready to respond and get you back to comfort quickly.

A Family Rooted in Arizona HVAC

Four Seasons Home Services is owned by Kevin and Jessica Morriston, Arizona natives who come from a long line of air conditioning, heating, and electrical family members. Kevin graduated from RSI in 1986 and quickly became a professional HVAC service technician. Jessica’s father started Four Seasons Refrigeration and Heating in 1982 and ran a successful company throughout her childhood.

When the original company was no longer going to be operated, we decided to go back to our roots and provide personable, professional service at a reasonable and fair price. With a combined 45 years of experience, we strive to provide the very best service to all our clients. Our promise is 5 Star Service in All 4 Seasons, and we believe we can deliver customer service that is unmatched in the valley market. When you are ready to install a new air conditioner in Tempe, we would be honored to earn your trust.