Most central air conditioners last twelve to fifteen years, so age is the first thing to consider when weighing repair against replacement. It’s worth thinking about replacement if your system is more than ten years old, needs frequent or expensive repairs, struggles to keep your home cool, or has your energy bills climbing every summer.

When Replacement Makes Sense

An air conditioner that still uses older R-22 refrigerant is a strong candidate for replacement on its own, since that refrigerant has been phased out and is now costly to service. Combine that with an aging unit and frequent repairs, and replacement usually pencils out better than continuing to fix an old system.

Choosing the Right Size

Bigger isn’t better when it comes to air conditioning. An oversized unit cools the air too quickly without removing humidity, leaving your home cool but clammy and causing the system to short cycle and wear out faster. An undersized unit runs constantly and never quite keeps up. A qualified technician performs a load calculation, often called a Manual J, that accounts for your home’s square footage, insulation, windows, and local climate to recommend the right capacity.

Understanding SEER2 and Efficiency

When shopping for a new air conditioner, you’ll see efficiency ratings measured in SEER2. A higher number means the unit uses less electricity to deliver the same cooling, which translates to lower summer energy bills. Higher-efficiency models cost more upfront, but the savings add up over the life of the system, and many qualify for utility rebates or tax incentives.

What to Expect During Installation

A professional installation usually takes most of a day. The technician removes your old equipment, prepares the indoor and outdoor units, connects refrigerant lines and electrical wiring, and may inspect or seal your ductwork to ensure good airflow. Once connected, the system is charged with refrigerant, tested, and calibrated. A quality installer will also walk you through your new thermostat and the maintenance schedule that keeps your warranty valid.

Serving the Denver Metro

We install and replace air conditioning systems for homeowners across Denver, Aurora, Lakewood, Westminster, Thornton, Centennial, Broomfield, Parker, Highlands Ranch, Commerce City, Littleton, Wheat Ridge, Brighton, Englewood, Arvada, Golden, Castle Rock, Greenwood Village, and Northglenn.

Frequently Asked Questions

How much does a new air conditioner cost? It depends on the size and efficiency of the unit, installation complexity, and your location. A licensed contractor can provide a detailed quote after evaluating your home.

How long does a new AC unit last? With proper installation and regular maintenance, most central air conditioners last twelve to fifteen years.

Is it better to repair or replace an old air conditioner? If your unit is under ten years old and the repair is minor, fixing it is usually the better value. If it’s older, uses phased-out refrigerant, or needs a major repair, replacement often saves more money long-term.

Ready for a New Air Conditioner?

A properly sized, professionally installed air conditioner keeps your home cool and energy-efficient for years to come.

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