24/7 dispatch across Houston, TX
AC & Heating Repair in Houston, 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 HVAC contractors serving Houston and Harris County suburbs (Heights, Galleria, Clear Lake, Katy, Cypress, Kingwood, and more). No fake five-star badges or "15-minute guarantees" — dispatch quotes a real ETA for your ZIP.
Local AC repair when Houston heat will not quit
Houston AC calls peak from May through October: systems that ran all night still blow warm air by noon, outdoor units freeze after thermostat battles, and capacitors fail during multi-day heat advisories. Older bungalows in the Heights and Montrose often share the same story — a 12–15 year condenser that was never sized for today's humidity load.
What that means for AC & heating in Houston: Compressors and contactors see 8–10 months of hard duty. Storm-related power flickers kill control boards. Condensate clogs and dirty evaporator coils show up constantly in humid weeks. Winter cold snaps still produce no-heat calls on furnaces and heat pumps in the northern suburbs.
Every HVAC job dispatched through Texaserv in Houston goes to an independently licensed local contractor — not a national call center. Techs should carry common capacitors, contactors, and refrigerant recovery gear, and quote before major parts are ordered.
AC & Heating (HVAC) services we dispatch in Houston
The catalog below covers what our Houston 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 Houston
This list covers roughly 70% of the calls dispatched to Houston 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 Houston
Numbers below are the 2025–2026 market ranges we see in Houston. 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 Houston
We won't promise "15 minutes anywhere." That's marketing, not physics. What you can actually expect, based on hundreds of Houston 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.
- No-cool / no-heat emergencies: elderly household, infant at home, or indoor temps climbing past safe levels — tell dispatch so the closest available tech is prioritized. For gas odors, leave and call 911 first.
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 Houston
Coverage across Houston and the wider Harris County metro. Freeways served: I-45, I-10, I-69/US-59, I-610, Beltway 8, SH-288. Landmarks nearby: Texas Medical Center, NRG Stadium, Bush Intercontinental Airport, Hobby Airport, Port of Houston.
Outside these areas? Call — we may still have a dispatchable tech in your zip code.
What actually happens on the tech visit
Every dispatched Houston 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 Houston
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 Houston.
- 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.
- Don't keep resetting a tripped breaker on a hot outdoor unit. Repeated resets can burn the compressor.
- Don't chip ice off a frozen coil with a knife or screwdriver. That damages fins and refrigerant lines.
- Don't fall for "same-day upsell" pressure. Get the written diagnosis first unless the home is unsafe.
Licensing, insurance, and how to verify
HVAC contractors dispatched in Houston should hold the appropriate Texas TDLR air conditioning / refrigeration license. You can and should verify:
- Ask for the TDLR license number on arrival.
- Look up the number at tdlr.texas.gov.
- Confirm general liability insurance before major equipment replacement.
Texaserv itself does not perform the service work. We are a dispatch and lead-generation platform connecting Houston-area customers with independent, licensed and insured contractors. All work is performed, invoiced, and warranted by the contractor.
AC & Heating (HVAC) FAQ — Houston
Why isn't my AC cooling in Houston?
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 Houston?
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.
Houston AC & heating guides
Read these before or while you wait for the tech:
Need AC or heating help in Houston now?
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