AC Installation & Replacement San Marcos

When replacement makes sense

The system is 12–15+ years old and needs a major repair
It uses R-22 refrigerant and has a leak
Energy bills keep climbing or the system can't keep up on hot afternoons
You're remodeling, adding space, or replacing ductwork anyway

Sizing matters

Bigger isn't better. An oversized AC cools the air quickly and then shuts off before it removes humidity, which leaves the house cool but clammy. An undersized one runs nonstop on the hottest days. A proper load calculation looks at square footage, insulation, windows, sun exposure and ductwork.

Efficiency and newer refrigerants

Since January 2023, new central air conditioners are rated under the SEER2 standard, and the southern U.S. has a higher minimum efficiency for new systems than the north. Since 2025, new residential systems are moving to lower-impact refrigerants such as R-454B and R-32. We'll explain what applies to the equipment you're considering.

What an installation includes

A typical replacement covers removing the old equipment, setting the new outdoor and indoor units, connecting the refrigerant lines, electrical and condensate drain, and starting up and testing the system.

All Major Brands, Sold, Installed & Serviced

We sell, install, and service all major brands. Brands we work with include:

Carrier
Trane
Lennox
Goodman
Rheem
Ruud
American Standard
Daikin
Amana
York
Bryant
Heil
Tempstar
Coleman
Payne
Mitsubishi Electric
Fujitsu
LG
Gree
Bosch
Frigidaire
Maytag
Armstrong Air
Ducane
Comfortmaker
Luxaire
Nordyne/Intertherm (manufactured homes)
Day & Night
Arcoaire

Brand names are trademarks of their respective owners.

Financing available

A new system doesn't have to be paid for all at once. Financing is available. Ask about financing options when you call (512) 333-1135.

Guaranteed work

All of our work is guaranteed.

We serve homes and businesses along the I-35 corridor from Austin to San Antonio and the surrounding area. See all service areas.

Frequently asked questions

How long does an AC replacement take?

A straightforward replacement of an existing split system is often completed in a day. Changes to ductwork, electrical or equipment location can add time.

Should I replace the indoor and outdoor units together?

Usually, yes. Matched indoor and outdoor components are needed to reach the rated efficiency, and newer refrigerants generally aren't compatible with older coils.

Do you install heat pumps too?

Yes. See heat pump service and replacement.

New AC Installation & Replacement