24/7 dispatch across San Antonio, TX
AC & Heating Repair in San Antonio, TX
Central AC not cooling, furnace won't ignite, heat pump throwing an error code, condensate line clogged — dispatched to licensed Texas HVAC techs.
Texaserv connects you with independent, licensed and insured contractors serving San Antonio and surrounding Harris/Dallas/Travis/Bexar-area suburbs. We don't do fake five-star badges or "15-minute guarantees" — response time is honest and quoted by dispatch.
Local AC & Heating (HVAC) service, dispatched from San Antonio
San Antonio's mix of century-old King William Victorians and 1950s Alamo Heights homes creates a patchwork of legacy plumbing, cloth-wrapped wiring, and undersized electrical panels. Cascading heat with limited shade in newer subdivisions means AC systems seldom get a break.
What that means for ac & heating (hvac) in San Antonio: Summer highs pushed past 100°F for months. Attic condensers in Stone Oak subdivisions fail fastest.
Every job dispatched through Texaserv in San Antonio goes to an independently licensed local contractor — not a national call center reading a script. That means the tech knows local code, common failure patterns for San Antonio homes, and where to source parts locally when a job needs an unexpected fix.
AC & Heating (HVAC) services we dispatch in San Antonio
The catalog below covers what our San Antonio network handles on a normal week. Nothing on this list is a bait-and-switch — if a tech quotes a scope different than what you called for, that gets flagged.
Diagnostic + repair call
Trip charge covers diagnosis; repair estimate given before work begins.
Refrigerant leak & recharge
EPA 608–certified techs; R-410A standard, R-32 for newer systems.
Capacitor / contactor replacement
The #1 summer failure. Usually a 30-minute fix once diagnosed.
Blower motor & ECM board
Furnace airflow issues, staged/variable speed board replacement.
Thermostat install (smart or standard)
Nest, Ecobee, Honeywell — including C-wire adapter if needed.
System replacement (2-ton to 5-ton residential)
SEER2 15–20 range, heat pump or straight-cool. Load calc included.
Duct sealing & repair
Mastic and metallic tape (not cloth tape). Manual D verification available.
Preventative maintenance
Coil cleaning, refrigerant check, drain line clear, capacitor test.
Most common ac & heating (hvac) problems we see in San Antonio
This list covers roughly 70% of the calls dispatched to San Antonio ac & heating (hvac) techs. Each includes the actual fix — no scare tactics, no upsell pressure.
No cool air from vents, outdoor unit is silent
Almost always electrical: failed capacitor, tripped high-pressure switch, or dead contactor. Diagnostic in 20-30 minutes. Capacitor swap $180-380 total; contactor $200-400.
No cool air, outdoor unit runs, indoor blower runs
Refrigerant-side issue — either low charge from a slow leak or a stuck TXV/metering device. Leak search plus recharge $400-900; TXV replacement $700-1400.
System cools, then trips off after 15-30 minutes
Overheating condenser, dirty evaporator, or low refrigerant tripping the freeze-stat. Coil cleaning $250-500; deep chemical clean $450-800.
Water dripping from ceiling near the indoor unit
Condensate drain line is clogged. Emergency shutoff, drain clear, and pan check runs $150-350. Left untreated causes drywall damage that costs 10x more.
Furnace ignites, then shuts off after seconds
Classic flame sensor issue in gas furnaces — the sensor is coated in oxide and can't confirm flame. Sensor clean is $180-280, replacement $250-400.
Honest pricing in San Antonio
Numbers below are the 2024–2025 market ranges we see in San Antonio. Actual quote depends on access, parts availability, and whether after-hours labor rates apply. You always get a written estimate before any work starts — nothing gets billed without your say-so.
| Service | Typical range |
|---|---|
| Diagnostic / service call | $85 – $150 |
| Capacitor replacement (parts + labor) | $180 – $380 |
| Blower motor replacement | $400 – $900 |
| Refrigerant recharge (R-410A per lb) | $80 – $150 per lb (2–5 lb typical) |
| Full condenser + coil replacement (3-ton) | $5,000 – $8,500 |
| Full system (16 SEER2 heat pump, 3-ton) | $8,500 – $13,500 installed |
Why we publish these ranges: price opacity is the #1 complaint people have about home services. We'd rather scare off tire-kickers than surprise you on the invoice.
Realistic response time in San Antonio
We won't promise "15 minutes anywhere." That's marketing, not physics. What you can actually expect, based on hundreds of San Antonio dispatches:
- Inner-loop / downtown weekday daytime: tech dispatched within 15–30 min, on-site 30–60 min after call.
- Metro suburbs weekday daytime: on-site 45–90 min after call.
- Late-night / weekend / weather event: add 20–60 min to the above. Storms delay everything.
- Life-safety emergencies (gas leak, live wire, active water damage): we prioritize and dispatch the closest available tech, but we still won't lie about ETA. Call 911 first for gas leaks and live-wire hazards.
On the call, dispatch will give you an honest ETA window based on tech location at that moment. If the number they say is longer than you can wait, tell them — we'll help you decide whether another provider or 911 is the right call.
Neighborhoods and areas covered in San Antonio
Coverage across San Antonio and the wider Bexar County metro. Freeways served: I-10, I-35, I-37, Loop 1604, Loop 410, US-281. Landmarks nearby: San Antonio International Airport, The Alamo, River Walk, JBSA-Lackland, JBSA-Randolph.
Outside these areas? Call — we may still have a dispatchable tech in your zip code.
What actually happens on the tech visit
Every dispatched San Antonio ac & heating (hvac) visit follows the same core flow. This is not aspirational — it's how the invoice-flow works with our contractors:
- Tech arrives with gauges, multimeter, refrigerant scale, common parts.
- Walks the outdoor unit and indoor air handler, reads static pressure and temperature split.
- Runs sequence-of-operation test to isolate electrical vs refrigerant vs airflow.
- Writes an estimate with parts, labor, and warranty terms.
- Executes repair, retests, and confirms proper delta-T and refrigerant pressures.
If a tech skips the written-estimate step, or starts work without your verbal approval on the number, call the dispatch line immediately.
Seasonal considerations for San Antonio
AC service calls spike in June-August (heat) and January-February (freeze). Book maintenance in April (AC) or October (heat) to avoid peak-season pricing and long wait times. Do NOT wait for a July no-cool call at 2x the normal rate.
Materials, brands, and warranty
Manufacturer warranties: 5-10 years on parts (Carrier, Trane, Lennox, Rheem, Goodman). Compressor: often 10 years on registered systems. Labor warranty from the contractor is typically 1-2 years. Registration MUST happen within 60-90 days of install — do it.
How Texaserv dispatch works
- You call (512) 994-1596. A human answers, not an IVR maze.
- You describe the problem. Dispatch pulls the closest licensed ac & heating (hvac) contractor in San Antonio.
- You get an ETA and a base price. No fake "urgency premium" — the number is the number.
- Tech arrives, diagnoses, quotes. Written estimate before any work begins.
- You approve. Work is done. You pay the tech direct. Texaserv gets a small dispatch fee from the contractor — that's why we won't dispatch anyone with unresolved complaints.
What NOT to do before we arrive
- Don't sign a blank invoice or approve unwritten estimates. Ever. Any legitimate contractor writes the estimate first.
- Don't pay cash-only techs who won't provide a company name and license number. That's a red flag industry-wide.
- Don't attempt DIY on gas lines, live electrical panels, or slab excavation. These jobs kill people every year in Texas.
- Don't fall for "same-day upsell" pressure. If it's not truly an emergency, sleep on the quote — a real problem will still be there tomorrow.
Licensing, insurance, and how to verify
Every ac & heating (hvac) contractor we dispatch in San Antonio carries the appropriate Texas license for their trade — TDLR for electricians, TSBPE for plumbers, TDLR for HVAC, TDLR for tow operators, DPS for locksmiths. You can and should verify:
- Ask for the license number on arrival — a real tech carries an ID card.
- Look up the number at tdlr.texas.gov (or the appropriate board).
- Confirm general liability insurance — ask for a certificate before work if it's a large job.
Texaserv itself does not perform the service work. We are a dispatch and lead-generation platform connecting San Antonio-area customers with independent, licensed and insured contractors. All work is performed, invoiced, and warranted by the contractor.
AC & Heating (HVAC) FAQ — San Antonio
Why isn't my AC cooling in San Antonio?
The most common causes we see: (1) a failed capacitor — the small can inside your outdoor unit that starts the compressor; (2) low refrigerant from a slow leak, usually at the evaporator coil or line-set joints; (3) a dirty condenser coil restricting heat rejection; (4) a frozen indoor coil from restricted airflow (clogged filter or blower issue). A diagnostic visit isolates the cause in 20–40 minutes.
How much does AC repair usually cost in San Antonio?
Simple part swaps (capacitor, contactor, thermostat) run $180–450 all-in. Refrigerant recharges run $250–700 depending on leak size. Blower motors, boards, and compressor issues are $500–2000. Anything above 40% of new-system cost we recommend replacement rather than repair.
Should I repair or replace an old AC unit?
General rule: if the unit is 12+ years old and the repair estimate exceeds 40% of a new system, replacement usually saves money over a 5-year window because newer SEER2 units use 30–45% less electricity. If under 8 years old, repair. In between it depends on refrigerant type (R-22 systems are no longer serviceable with new refrigerant) and warranty status.
What size AC unit does my house need?
Rough rule for Texas: 400–600 sqft per ton. A 2000 sqft single-story typically needs 3.5–4 ton. But orientation, insulation, ceiling height, and window area matter a lot — an oversized unit short-cycles and doesn't dehumidify. A proper Manual J load calculation is worth the $150–300 it costs before spending five figures on a new system.
Do you work on heat pumps and mini-splits?
Yes — both. Heat pumps are the dominant new install in Texas now because they handle both heating and cooling with a single system. Mini-splits (ductless) are common for garages, additions, and older homes where installing ductwork is impractical.
How often should I get maintenance?
Once a year minimum — spring is ideal for AC-dominant systems, fall for heat pumps. A tune-up catches worn capacitors, low refrigerant, and dirty coils before they cause a mid-July no-cool call at 2x the price.
Need ac & heating (hvac) help in San Antonio now?
Call and speak to a human. Honest ETA, honest price, licensed local tech.
Call (512) 994-1596