At a glance
- System types: central split AC, heat pumps, packaged units and ductless mini-splits
- Sizing: should be based on a load calculation (ACCA Manual J), not just square footage
- Permits: new HVAC installations in Laredo typically require a permit pulled by the licensed contractor
- Get started: call (956) 307-9262 or request a quote
Why sizing matters more in Laredo
An oversized system cools the air quickly but shuts off before removing humidity, leaving the house clammy and wearing out parts with short cycles. An undersized system runs nonstop on the hottest afternoons and still can't keep up. A proper load calculation (ACCA Manual J) accounts for your home's insulation, windows, sun exposure, duct location and Laredo's extreme summer design temperatures. Ask every installer whether they'll do one.
Choosing the right system
- Central split AC + furnace or air handler: the standard for homes with ductwork.
- Heat pump: cools and heats with one system. A good fit for Laredo's short, mild winters.
- Packaged unit: everything in one outdoor cabinet. Common on manufactured homes and some commercial buildings.
- Ductless mini-split: ideal for additions, garages, casitas and rooms without ducts. See mini-split installation.
Efficiency is rated in SEER2. The federal minimum for new split AC systems in Texas (DOE's South region) is 14.3 SEER2 for most home-size systems. Higher-SEER2 and variable-speed systems cost more upfront but can lower cooling bills in a climate where the AC runs most of the year.
Need help now? Call or text a real person.
📞 (956) 307-9262What a professional installation should include
- Load calculation and equipment matched to your ductwork
- Permit and inspection where required
- New refrigerant line set or proper flushing and pressure testing of the existing one
- Evacuation with a vacuum pump and micron gauge before charging
- Sealed duct connections and a properly sloped, secured condensate drain
- Correct electrical disconnect and breaker sizing
- Startup testing: refrigerant charge, airflow and temperature split
- Manufacturer warranty registration
Refrigerants are changing
Federal rules are moving new residential systems away from R-410A toward lower-impact "A2L" refrigerants such as R-454B and R-32, and the rules and deadlines have shifted recently. Ask your contractor which refrigerant the system uses and how that affects future service and parts.
Laredo AC Pros is an HVAC referral service, not an HVAC contractor. We connect customers with independent air conditioning contractors licensed by the Texas Department of Licensing and Regulation (TDLR), including our current partner Twins Air Conditioning (TDLR #TACLA015293E). All HVAC work is performed, priced and warrantied by the contractor. Laredo AC Pros may receive a referral fee from contractors.