When replacement beats another repair
Most Cibolo installations start as a repair call that stops making sense. A compressor quote of $1,200–$2,500 on a 14-year-old system, or a coil problem at $900–$2,500, forces the real question.
Two rules of thumb help frame it. The 5,000 rule: multiply system age by the repair cost — over 5,000 leans toward replacement. The 50% rule: a repair near half the cost of a new system rarely pays back.
The repair or replace AC guide works through that math with local numbers before you commit to either path.
Why sizing matters more than brand
An oversized system is not a luxury. It blasts the house cold in short bursts, shuts off before removing humidity, and cycles its compressor to an early grave — the same short-cycling wear that kills older units.
An undersized system has the opposite problem: it runs all afternoon on a 100°F day and never catches up, which is how Cibolo homeowners end up with a brand-new system and a still-hot second floor.
A proper installation starts with a load calculation using your home's square footage, insulation, windows, and orientation. In subdivisions like Steele Creek and Turning Stone, two houses with the same floor plan can need different tonnage depending on which way they face.
Can I just match the tonnage of my old system?
Not safely. The old unit may itself have been oversized or undersized, and changes like new windows, added insulation, or a finished bonus room shift the load. A fresh load calculation takes under an hour and anchors the whole installation.
Will a bigger system cool my upstairs better?
Usually not. Uneven two-story cooling is normally an airflow and duct problem, not a tonnage problem. More capacity on the same ducts often makes downstairs colder while upstairs stays warm. Ask the pro to check duct sizing and returns during the quote visit.
What a full installation includes
A complete installation covers the outdoor condenser, the indoor coil or air handler, refrigerant lines, a new thermostat where needed, and disposal of the old equipment. Ductwork is inspected, and sealed or repaired where it leaks.
The pro you're matched with should also check the condensate drain — a detail Cibolo's builder-grade homes get wrong often enough that clogged drains are a leading cause of water damage calls.
Electrical capacity matters too. Some older panels need attention before a modern system goes in, and that should appear in the written quote, not as a surprise on install day. For the full breakdown of what drives a quote, see AC replacement cost.
What a new system costs in Cibolo
Full system replacement in the San Antonio area runs $5,000–$12,000+, and where your home lands in that range depends on tonnage, efficiency tier, duct condition, and refrigerant type.
Efficiency is rated in SEER2, the current metric. Higher SEER2 costs more upfront and less per month — with about 3,148 cooling degree days a year in this climate, the running-cost side of that trade is real money over 15 summers. The SEER rating explained page works through the payback plainly.
Every quote through this service is a written range before work starts. If a number arrives without a range or a load calculation behind it, that is worth questioning.
| Item | Typical range | What moves it |
|---|---|---|
| Full system replacement | $5,000–$12,000+ | Tonnage, SEER2 tier, ductwork condition |
| Evaporator coil replacement only | $900–$2,500 | Coil size and refrigerant type |
| Compressor replacement only | $1,200–$2,500 | Warranty status and system age |
| Common pre-install repairs | $150–$650 | Drain, electrical, and duct fixes found on inspection |
Builder-grade systems are hitting replacement age
About 74% of homes in ZIP 78108 were built between 2000 and 2019, and the builder-grade systems installed then are now roughly 7 to 25 years old. Homes built from 2010 onward commonly hit their first major failure at 8 to 12 years.
That wave is why neighbourhoods like Falcon Ridge, Bentwood Ranch, and Cibolo Valley Ranch see several installations on the same street in one summer. The systems went in together, and they age out together.
If your home is in that window, getting a replacement quote before the system dies in July is worth real money — planned installations get better scheduling and calmer decisions than emergency ones. The builder-grade AC problems page explains the pattern.
My system still cools. Should I replace it before it fails?
If it is past 12 years old, uses R-22 refrigerant, or has needed a major repair in the last two summers, getting quotes now is sensible. You are not committing — you are learning your number while you can still choose the timing instead of the heat choosing it for you.
What happens to my old refrigerant?
Refrigerant must be recovered, not vented, and refrigerant work requires an EPA 608 certified technician. The installation quote should include proper recovery and disposal of the old unit. Ask about it directly — a pro who handles this correctly will say so without hesitation.
New refrigerant, new rules: R-454B
Systems built from 2025 onward ship with R-454B instead of R-410A. It is a mildly flammable A2L refrigerant, which means professional handling, the right sensors, and a pro who is trained on it — not every installer is yet.
For homeowners the practical points are simple: new systems will use it, existing R-410A systems keep their refrigerant, and the two are never interchangeable in the same system.
The R-454B refrigerant page covers what changes for repairs and running costs. When you get installation quotes, ask which refrigerant the proposed system uses and confirm the pro services it.
How installation through this service works
BreezeCrew connects homeowners with independent local pros — it does not install systems itself. You call, describe the home and the old system, and get matched with a pro who handles installations in Cibolo.
That pro measures, calculates the load, and gives you a written range. You compare, ask questions, and approve before anything is ordered. Comparing the quote against typical AC repair costs for your old system helps confirm replacement is the right call.
A good installation also sets up the next decade: correct charge, sealed ducts, a clear drain, and a thermostat you actually understand before the crew leaves.
Questions homeowners ask
How long does a new AC installation take in Cibolo?
A straightforward like-for-like replacement usually takes a day. Jobs that add duct repairs, electrical work, or a different system layout can run into a second day. The pro you're matched with should give you a schedule with the written quote, including when cooling will be back on — important information if the work lands during a 100°F stretch.
What size AC does a Cibolo home need?
There is no honest answer without a load calculation. Tonnage depends on square footage, ceiling height, insulation, window area, and orientation — two identical floor plans in Turning Stone can need different sizes. Rule-of-thumb sizing by square footage alone is how homes end up oversized, humid, and short-cycling. Insist the quote includes a proper calculation.
Is a higher SEER2 system worth the extra cost here?
In this climate, often yes. Cibolo racks up about 3,148 cooling degree days a year, so the system runs long hours for five months. A higher SEER2 rating costs more upfront but cuts monthly running costs across roughly 15 summers. Ask for the estimated annual running cost at each tier, in writing, and compare the payback period against how long you plan to stay.
Can a new system fix my hot second floor?
Only if the cause is capacity, which it usually is not. Two-story Cibolo homes typically suffer from duct sizing, return-air, and balancing problems. A good installation visit includes checking the ductwork and returns, and the fix may be duct work or a zoning change rather than a bigger unit. Raise it during the quote so it is priced into the plan, not discovered after.
What should I ask before approving an installation quote?
Ask for the load calculation, the exact SEER2 rating, which refrigerant the system uses, whether duct repairs and old-unit disposal are included, and the written price range with what could move it. Also ask who handles warranty registration. A pro matched through this service expects these questions — clear answers in writing are the sign the quote is a serious one.
Related pages
Need a Cibolo AC pro?
Thinking about a new system? Call (830) 555-0147 for a matched local pro who sizes it properly and quotes a written range first — no biggest-box upsell, no pressure to sign on the spot.
Call (830) 555-0147