When Is It Time to Replace Your Katy AC System?
Houston's extreme climate puts more wear on HVAC systems than almost anywhere in the country. Your system runs 8–10 months per year here versus 4–5 months in northern states. That compressed wear cycle accelerates aging significantly. Consider replacement when:
- System is 12+ years old
- Uses R-22 (Freon) refrigerant
- Repair costs exceed 50% of replacement
- Energy bills rising despite no usage change
- Rooms won't cool below 78–80°F on peak days
- Frequent breakdowns — 2+ per year
- Excessive humidity indoors despite AC running
- Loud rattling, banging, or grinding noises
- Compressor failure on older system
- System runs constantly without reaching setpoint
The Katy Climate Challenge — Why Sizing Matters So Much Here
Katy sits in ASHRAE Climate Zone 2A — Hot Humid. This means your AC system faces a dual load: it must remove heat and moisture simultaneously. An oversized system (a common builder error) short-cycles — it reaches the temperature setpoint before running long enough to dehumidify the air. The result is a home that feels cold but clammy. Indoor humidity stays at 65–70% instead of the ideal 45–50%.
An undersized system runs constantly and still can't cool your home on a 104°F afternoon in front of Katy Mills. Our Manual J calculations account for your home's square footage, ceiling height, window orientation, insulation values, and the specific solar load your neighborhood's orientation creates. This is the only way to get sizing right.
💡 CenterPoint Energy Rebate: Texas homeowners replacing systems with qualifying high-efficiency units (SEER2 16+) may be eligible for rebates up to $300 from CenterPoint Energy. We handle the paperwork for you at no charge.
Systems We Install
We are authorized dealers for all major manufacturers. For Katy homes, we most commonly recommend:
For most Katy homes over 2,200 sq ft, we recommend two-stage or variable-speed compressor systems. The added cost is typically recovered in 3–4 years through lower energy bills, and the improved dehumidification performance is immediately noticeable.
What's Included in Every Installation
- Manual J load calculation
- Full system removal & disposal
- New refrigerant line set (when required)
- New disconnect box & electrical
- New programmable or smart thermostat
- Condensate drain line flush & float switch
- Start-up commissioning & calibration
- Permit pull & inspection (when required)
- Manufacturer warranty registration
- 10-year labor warranty on installation
Financing Options
A full system replacement is a significant investment — typically $4,500–$12,000 depending on system size, efficiency rating, and your home's ductwork condition. We offer 0% financing for qualified homeowners through our lending partners, with terms up to 60 months. Apply in minutes from your phone before the technician leaves your driveway.
⚠ Ductwork Matters: A new high-efficiency system installed on old, leaky ductwork delivers a fraction of its rated performance. Before recommending a specific system, we inspect your ductwork for leaks, sizing issues, and insulation. Ask us about our combined system + duct upgrade packages.