Time for a new AC system? We'll size it right, install it right, and make sure it keeps your family cool for the next 15-20 years. Free in-home estimates and financing available.
Get a Free EstimateReplacing your air conditioning system is one of the biggest home improvement investments you'll make. In Katy's extreme climate, getting it right matters more than almost anywhere else in the country. An improperly sized or poorly installed system will struggle through our 7-month cooling season, drive up your electricity bills, and fail years before it should.
At Katy AC Pros, every installation starts with a thorough evaluation of your home. We don't just match the tonnage of your old system — we calculate the actual cooling load based on your home's square footage, insulation levels, window placement and type, ductwork condition, and orientation to the sun. This Manual J load calculation ensures you get a system that's sized perfectly for your specific home.
Many Katy homes, especially those built in the early 2000s in communities like Cinco Ranch and Grand Lakes, were originally equipped with builder-grade AC systems that were marginally sized for cost savings. These units worked when they were new, but after 15+ years of Katy summers, they've lost efficiency and often can't keep homes below 78-80°F on the hottest days.
An oversized system cools too quickly, then shuts off before properly dehumidifying your home. In Houston's humidity, this means your house feels cool but clammy, promotes mold growth, and the constant on-off cycling wears out the compressor prematurely.
An undersized system runs constantly, never reaching your desired temperature on 100°F+ days. Your electricity bills skyrocket, and the system wears out years early from the constant strain.
A properly sized system runs in longer, efficient cycles that cool and dehumidify effectively. It maintains consistent temperatures throughout your home and operates at peak efficiency.
We install top-tier equipment from brands with the best track records in the Houston-area climate:
As of January 2023, the Department of Energy updated efficiency standards to SEER2 (Seasonal Energy Efficiency Ratio 2). The minimum for the southern U.S. region, which includes Texas, is 15 SEER2.
For Katy homeowners, we typically recommend 16-18 SEER2. Here's why: your AC runs 7+ months per year, often 10-14 hours per day in peak summer. At that usage level, the electricity savings from a higher SEER2 system are significant. A 17 SEER2 system uses roughly 20% less electricity than a 15 SEER2 system. On a $350/month summer electric bill, that's $70/month in savings — which adds up to $2,500-3,000 over the first 5 years.
Systems above 20 SEER2 are available but offer diminishing returns for most Katy homes. We'll show you the math for your specific situation so you can make an informed decision.
We understand that a new AC system is a significant investment. That's why we offer flexible financing options with multiple lenders. Most Katy homeowners qualify for low-interest monthly payments that make a new, efficient system affordable. During your free estimate, we'll walk you through the financing options available to you.
A new AC system in Katy typically costs between $4,500 and $12,000 installed, depending on the size of your home, equipment brand, and efficiency rating. A standard 3-ton system for a 1,500-2,000 sq ft Katy home runs $5,000-$7,500. We provide free in-home estimates with exact pricing.
AC sizing depends on your home's square footage, insulation, window placement, and ductwork. In the Katy area, a general guideline is 1 ton per 500-600 square feet, but a Manual J load calculation gives the most accurate answer. Oversized systems short-cycle and waste energy; undersized systems can't keep up with Texas heat.
The federal minimum for Texas is 15 SEER2. We recommend 16-18 SEER2 for most Katy homeowners — the higher efficiency pays for itself within 3-5 years through lower electricity bills given how much we run AC in the Houston area. Systems above 20 SEER2 offer diminishing returns for most homes.
A standard replacement (same location, same size) typically takes 4-8 hours and is completed in one day. If ductwork modifications are needed or it's a new construction install, it may take 1-2 days.