42,000 BTU · 1,800 – 2,300 sq ft
3.5-ton AC Unit Price Installed in San Antonio — $7,300 – $9,000
That is a complete 3.5-ton changeout — outdoor unit, indoor coil, permit, charge and haul-off — not a teaser price for the condenser alone. Where you land in that range comes down to the brand you pick, how efficient a system you want and the size of your home. Call or text the owner and get the real number for your house in a few minutes.
What a 3.5-ton system actually costs
Real installed ranges, published. Most San Antonio homeowners never see a number until a salesman has been in the living room for ninety minutes.
Financing is available on any of these, with approved plans from about $98 a month. Duct repairs, electrical upgrades or difficult attic access can move the number — we tell you before we start, never after.
What moves your price
Nobody can hand you one number for a 3.5-ton system sight unseen and be honest about it. Here is exactly what decides where you land in that range.
The size of your home
Square footage, ceiling height and sun exposure set the tonnage. A bigger system costs more equipment and more labor.
The brand you pick
Goodman, Carrier, Armstrong Air and American Standard all sit at different price points. Every one of them comes with the same warranty package from us.
How efficient you want to go
A standard 14–15 SEER2 system is the value end. A 16–20 SEER2 variable-speed system costs more up front and cuts the CPS bill every month after.
What we find at your house
Duct condition, electrical, drain lines and attic access. We look before we quote, and you hear the number before we start — never after.
Is a 3.5-ton unit the right size for your home?
A 3.5-ton system is rated at 42,000 BTU and generally cools 1,800 – 2,300 sq ft in our climate. Common on two-story homes running a single system, and larger one-story floor plans.
Size is not guesswork, but it is also not a mystery — we hold a Texas master HVAC license and have installed in these neighborhoods since 2010. Tell us the square footage, the age of the house and what is on the pad now, and we will tell you straight whether 3.5-ton is right or whether you need to go up or down a size. Oversizing is the most common mistake we find: the house gets cold but stays clammy because the system short-cycles.
What the price includes
- New outdoor condenser and matching indoor coil or air handler
- Permit, pad, line-set connections and factory-spec refrigerant charge
- Old system removed and hauled off the same day
- 10-year parts warranty
- 2-year labor warranty
- 2-year service agreement included
"I'll give you a real 3.5-ton price on the phone. No salesman, no ninety-minute pitch."
Clint Carnes — Owner · San Antonio · Family owned since 2010
What Your Neighbors Are Saying
Get your 3.5-ton price today
Talk directly with the owner. Honest all-inclusive number, financing from $98 a month, most systems installed the next day.
Texas master HVAC license · 10-year parts warranty