Emergency HVAC Repair in Houston: 24/7 Service for AC, Heating & Commercial

Your AC quits at 2am. A furnace won’t ignite on the coldest night of the year. A rooftop unit at a Heights restaurant gives up halfway through the lunch rush. Emergency HVAC repair isn’t really about being open 24/7 — almost every Houston shop claims that. The thing that matters at 2am is whether a Houston-based dispatcher picks up the phone, whether the truck has the parts on board, and whether the company is going to charge you double because it’s a Saturday. 75 Degree AC has been operating in Houston since 2016. License TACLA72152E. Every dispatched technician carries EPA Section 608 Universal. Trucks stocked for Carrier, Trane, Lennox, Goodman, Rheem, American Standard, Daikin, Mitsubishi, Bryant, and York. Residential split systems, gas furnaces, heat pumps, and light-commercial rooftop work.

TACLA72152E (Class A) — verify at tdlr.texas.gov
EPA Section 608 Universal certified technicians
24/7 dispatch — no after-hours surcharge
90-minute target inside Loop 610
Same-day in Katy, Sugar Land, Cypress

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When Is It Really an HVAC Emergency?

An HVAC emergency is any failure that puts health, safety, or property at risk. Sparks, burning smells, water on the ceiling, a furnace tripping a CO detector — those are obvious. The harder calls are the ones in the middle.

Stop-everything signs — call us immediately:

Burning & Sparks: Burning smell from a vent/indoor unit or sparks, smoke, or visible flame at the air handler or condenser.

Gas Odor & CO Alarms: Suspected gas odor near a furnace (leave home, call CenterPoint at 713.659.2111, then us) or a triggering CO detector.

Electrical & Breakers: A main circuit breaker that trips again the exact moment the system tries to restart.

Active Water Leaks: Water pouring directly from the indoor unit onto your ceiling, drywall, or flooring.

Refrigerant Leaks: Sweet, ether-like smell or visible oily residue build-up near the indoor or outdoor coils.

What an Emergency Call Looks Like With Us

We target a 90-minute response window inside Loop 610 and same-day dispatch in the suburbs. During a heat dome or the week after a derecho, both numbers stretch — we tell you the honest ETA when you call.

When the call lands, dispatch confirms your address and the symptom. You get a text with the technician’s name, photo, and ETA. Our trucks carry capacitors (3–80 µF), contactors (24V/240V), condenser fan motors, ECM and PSC blower motors, hot-surface igniters, flame sensors, gas valves, control boards, drain-clearing equipment, manifold gauges, and R-410A, R-454B, and R-32 refrigerant. Most calls finish on the first visit.

NO SURCHARGES • 24/7 LIVE DISPATCH

Emergency Request

No after-hours, weekend, or holiday surcharge. The diagnostic fee at 2am on a Saturday is the same as at 10am on a Tuesday. No fuel surcharge, no trip add-on, no overtime premium.

Call Emergency Line (713) 598-2737

CREDENTIALS & WARRANTY

Texas TACLA72152E — Class A, any tonnage
EPA Section 608 Universal — Every tech
Fully Insured & Bonded
Founded in Houston, 2016
30-Day Same-Issue Callback Warranty
1-Year Labor Warranty on Emergency Repairs

Common Emergency Repairs in Houston

What actually fails in a Houston summer — six failure modes that cover the bulk of our emergency call volume, with typical 2026 repair pricing. Most resolve on the first visit because the part is on the truck.

Run Capacitor

Compressor strains to start, contactor chatters, breaker trips. We carry 3–80 µF units. Typical repair $150–$350

Contactor (24V / 240V)

The relay that closes when the thermostat calls for cooling. When it pits and welds, the outdoor unit stays silent. $200–$400 typical

Refrigerant Leak + Frozen Coil

Low charge freezes evaporator. We find the leak, repair it, and recharge with correct R-410A, R-454B, or R-32 fluid lines.

Clogged Condensate Drain

#1 "AC won't turn on" call here June–September. Drain clogs, float switch lifts, system shuts off to protect assets. Often under $200

Condenser Fan Motor

Outdoor fan stops turning completely, compressor quickly overheats and locks out. $450–$900 with stocked truck parts

Post-Storm Capacitor Failure

CenterPoint restores power after a storm, the voltage transient often takes out the run capacitor. Almost always a $200–$350 fix

YEAR-ROUND READINESS

Emergency Furnace & Heating Repair

Heating emergencies are rarer than AC emergencies here. However, Winter Storm Uri in February 2021 proved how critical heat is. That is why we keep furnace and heat pump components fully stocked year-round.

Gas Furnace Emergencies

Hot-Surface Igniter Failure

$175–$400

No ignition cycle occurs, triggering a fault code blinking on the main control board.

Flame Sensor Failure

$100–$300

Furnace fires normally for 30–90 seconds, then abruptly shuts down and locks out.

Gas Valve Failure

$500–$3,000

Fuel cannot reach the burner. On an older furnace, this typically becomes a replacement conversation.

Cracked Heat Exchanger

$1,500–$3,000

Strictly a safety issue, not a comfort issue. A physical crack can vent deadly CO into your supply air.

SUSPECTED GAS LEAK?

Leave the house immediately, do NOT flip light switches. Call CenterPoint at 713.659.2111 from outside. Once safe, contact us at (713) 598-2737.

Heat Pump Emergencies

Reversing Valve Failure

$700–$1,500

Valve gets physically stuck completely in cooling mode (no heat) or heating mode (no cooling).

Defrost Board Failure

$300–$700

Outdoor unit completely ices up, system cannot clear its frost cycle, blowing room-temperature air at registers.

Low Refrigerant (Heating Mode)

Leak Repair Vary

Heat pumps need a full charge to deliver rated heat at low outdoor temps. A leak that is tolerable in August becomes obvious the first night below 45°F.

Need Emergency Heating Dispatch?

Our technicians are EPA Certified and carry universal replacement electronics directly on the truck.

(713) 598-2737

HVAC Brands, Pricing & Field Realities in Houston

A lot of Houston competitor pages say “all major brands” and stop there. That’s not useful when you’re standing next to a humming Lennox SL28XCV at 11pm wondering whether the tech you called has actually opened one before. If your unit isn’t on this list, call (713) 598-2737 — we probably still service it.

Brands & Specific Models We Service in the Field

EPA SECTION 608 UNIVERSAL CERTIFIED TECHS

Carrier R-454B / R-410A

Infinity 24ANB7, Performance 24ACC6, Comfort 24ABB3

Trane R-454B / R-410A

XV20i, XR16, XL18i

Lennox R-454B / R-410A

Signature SL28XCV, Elite XC25, Merit ML17XC1

Goodman R-454B / R-410A

GSXC18, GSX16, GSX14

Rheem R-454B / R-410A

Prestige RA20, Classic Plus RA17, Classic RA14

American Standard R-454B / R-410A

Platinum 18, Gold XV, Silver 14

Daikin R-32

Fit, 19 Series (DX9VS), MXS multi-zone

Mitsubishi Electric R-32 / R-454B

M-Series, P-Series, Hyper-Heat H2i

Fujitsu R-32

Halcyon HFI, RLS3H

LG R-32

LMU multi-zone, Multi F MAX

Bryant R-454B / R-410A

Evolution 189BNV, Preferred, Legacy

York / Coleman R-454B / R-410A

Affinity, Echelon LX, Latitude

Refrigerant Transition Directive (2026 update): Since January 2025, new HVAC equipment can no longer ship with R-410A. Existing R-410A systems can be fully serviced, though 2026 wholesale costs run $12–$18 per pound (roughly triple the 2024 price profile). We explicitly disclose per-pound rates openly before adding any gas lines.

Emergency HVAC Call Cost Sheet (2026)

Most residential emergency calls land between $250 and $1,500 all-in with diagnostics included. No after-hours markup: Unlike competitors charging 1.5× or 2× standard daytime rates between 6pm and 7am, our rates stay static.

Component Module

Estimated Price Range

Run capacitor (single or dual)

$150 – $350

Contactor (24V or 240V)

$200 – $400

Furnace hot-surface igniter

$175 – $400

Furnace flame sensor

$100 – $300

Furnace gas valve

$500 – $3,000

Furnace control board

$300 – $1,200

Heat exchanger (Safety Issue)

$1,500 – $3,000

Condenser fan motor

$450 – $900

ECM blower motor

$650 – $1,200

Compressor (single-stage)

$1,800 – $3,200

Compressor (variable-speed)

$2,800 – $4,800

Reversing valve (heat pump)

$700 – $1,500

R-410A refrigerant (per pound)

$12 – $18 / lb

Drain clearing + float switch reset
Often under $200

The Core Rule of Thumb

System Age × Repair Cost > $5,000

If the calculated matrix result jumps over $5,000, a full replacement system starts making clean financial sense. If your system is 12+ years old and the emergency repair is $1,500+, we will openly put both variants on your invoice table and let you decide without pressure lines.

Texas falls inside the DOE South Region minimum SEER2 mandates (minimum 14.3 for split systems under 45,000 BTU).

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CenterPoint Energy Approved Rebates

If your emergency repair call leads down the road to a replacement system, we deduct qualifying utility credits directly from your final upfront invoice line item:

Up to $500 on qualifying ENERGY STAR heat pump units
$75 credit on integrated smart connected thermostats

Zero Hassle: We handle 100% of the submission logs on our end.

Emergency Dispatch Lines

Call (713) 598-2737

Commercial HVAC Emergency Service

Light-commercial systems fail differently than residential. A walk-in cooler quits at a restaurant and the food-safety clock starts at hour 12. A rooftop unit on a medical office loses cooling and patient appointments stop. We dispatch separately for commercial, with priority routing for medical offices, restaurants with perishable inventory, and multi-tenant buildings.

Light-commercial split systems (residential-style equipment in commercial use)
Rooftop package units (RTU) on offices, retail strips, restaurants
Dedicated outdoor air systems (DOAS) and make-up air units
Mini-split commercial in retrofit applications
Commercial heat pumps

Scope is light commercial. For industrial systems above 25 tons, we coordinate with our commercial partner network — call (713) 598-2737 to confirm fit. Itemized invoices to LLC or property-management billing on request. Property managers running multiple Houston buildings can set up a fast-track contact pattern that bypasses standard intake.

Houston Climate and Seasonal Emergency Patterns

Houston averages 108+ days above 95°F per year (NOAA HGX baseline). Cooling emergencies cluster June through August; heating emergencies cluster the two or three coldest weeks of the year, usually mid-December through late January.

Summer peak. Heat dome events push call volume to the annual peak. Capacitor failures spike — capacitors die more often as ambient air heats up, and Houston spends August well outside their rated thermal envelope.

Winter cold snaps. Houston winter is mild on average, and that’s the problem. The two or three weeks each year that actually drop below 30°F catch furnaces that ran fine in November. Winter Storm Uri tripled our heating-call volume in a single week.

Storm season. We worked through the Hurricane Beryl outage week of July 2024 and the May 2024 derecho restoration window. When CenterPoint restores power, voltage transients cause Houston-wide capacitor failures. Tuesday-after-restoration call volume runs 5–10× a normal Tuesday.

Professional HVAC Services Near Houston, Texas and Surrounding Neighborhoods

Looking for dependable HVAC service in your area? 75 Degree AC delivers fast, professional, and affordable HVAC solutions across Houston, TX, supporting both residential and commercial systems with expert care and trusted workmanship.

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Houston HVAC Emergency Credentials

License TACLA72152E (Class A). Our Texas Air Conditioning License authorizes residential and commercial HVAC work at any tonnage. Verify it free at tdlr.texas.gov/LicenseSearch — search by license number or by business name “75 Degree AC.”

EPA Section 608 Universal on every dispatched tech. Federally required for handling refrigerant in any HVAC repair. Cert card lives in the service vehicle, available on request.

Fully insured and bonded. Carriers and coverage amounts available on request.

Houston-local since 2016. Dispatch base at 4800 W 34th St, Ste C50F, Houston, TX 77092. The reviews and the reputation are tied to ZIP codes our team has worked in for nearly a decade. We’re not a franchise. We’re a Houston shop that grew because Houston customers kept calling back.

Expert installation by licensed Houston technicians
Energy-efficient systems to lower your bills
Quick and reliable AC replacement service
Compatible with all major AC brands and models
Preventive advice to maximize system lifespan

What Our Customers Are Saying

Recent AC Service Projects We Serve

Take a look at some of our recent AC service projects across Houston. We proudly provide expert installation, repair, and maintenance services to homes and businesses, ensuring comfort and satisfaction in every job we handle.

AC Repair Success

Cooling System Upgrade

Emergency Fix Completed

Leak Repair Resolved

Frequently Asked Questions FAQ's

Find answers to the most common questions about our services. We cover everything from repairs and installation to maintenance and emergency service.

What counts as an HVAC emergency?

Any failure that puts health, safety, or property at risk. The obvious ones: total cooling loss above 95°F with a vulnerable family member in the home, no heat below 40°F, burning smell or smoke, repeated breaker trips, suspected gas or CO leak, refrigerant leak, water pouring from an indoor unit. If you smell gas, leave the house and call CenterPoint Energy’s gas line (713.659.2111) before calling us. Otherwise call (713) 598-2737.

How fast can you actually be at my Houston home?

We target a 90-minute response window inside Loop 610 and same-day dispatch for Katy, Sugar Land, Cypress, Spring, The Woodlands, Tomball, Missouri City, and Richmond. You’ll get a text with the tech’s name, photo, and ETA. During peak weather events (heat dome week, post-derecho restoration), the window stretches — we tell you the honest ETA at the time of your call instead of promising and missing.

Do you charge extra for nights, weekends, or holidays?

No. The diagnostic fee at 2am on a Saturday is the same as the diagnostic fee at 10am on a Tuesday. No fuel surcharge, no trip add-on, no overtime premium. The diagnostic fee credits toward the repair if you authorize work.

Will the technician have parts on the truck?

Most calls finish on the first visit. Trucks carry capacitors (3–80 µF), contactors (24V and 240V), condenser fan motors, ECM and PSC blower motors, hot-surface igniters, flame sensors, gas valves, control boards, drain-clearing equipment, manifold gauges, and R-410A, R-454B, and R-32 refrigerant. If a major part needs to be sourced, we put the next-visit ETA in writing before we leave the property — no second-trip charge.

What's the typical cost for an emergency HVAC call in Houston?

Most residential emergencies land between $250 and $1,500 total, diagnostic included. Capacitor $150–$350. Contactor $200–$400. Furnace igniter $175–$400. Compressor $1,800–$3,200. Heat exchanger $1,500–$3,000. R-410A refrigerant currently $12–$18 per pound wholesale. The most common Houston “AC won’t turn on” call (clogged condensate drain + tripped float switch) is often under $200. Written estimate before work begins on every call.

What HVAC brands and systems do you service?

Carrier, Trane, Lennox, Goodman, Rheem, American Standard, Daikin, Mitsubishi Electric, Fujitsu, LG, Bryant, and York/Coleman. Split systems, packaged units, heat pumps, mini-splits, gas and electric furnaces, and light-commercial rooftop units. Every tech holds EPA Section 608 Universal.

Do you handle commercial HVAC emergencies?

Yes — we dispatch separately for commercial: light-commercial splits, RTUs, DOAS, make-up air, mini-split commercial. Property managers can set up a fast-track contact pattern that bypasses standard intake. Calls we handle regularly: restaurant walk-in coolers, medical-office cooling failures, retail tenant outages. We invoice to the LLC or property management company on request.

My breaker keeps tripping. Is this an emergency?

Yes. Stop resetting it. The breaker is doing exactly what it’s supposed to do — something downstream is drawing more current than the circuit is rated for. Common causes: failed run capacitor, shorted condenser fan motor, locked-up compressor, or a wiring fault at the outdoor disconnect. Continuing to reset can damage the compressor (an $1,800–$3,200 part) or start an electrical fire. Turn the system off at the thermostat, leave the breaker in the OFF position, and call (713) 598-2737.

Are you licensed in Texas? How can I verify?

Yes. Our Texas Air Conditioning License is TACLA72152E, Class A — authorizing residential and commercial HVAC work at any tonnage. Verify at tdlr.texas.gov/LicenseSearch by license number or by business name “75 Degree AC.” Every dispatched tech also holds EPA Section 608 Universal.

Will I get a written estimate before any work starts?

Yes. Every emergency call gets a written estimate before work begins. The tech runs diagnostics (capacitor microfarad check with a Fieldpiece tester, manifold gauge readings, multimeter voltage and continuity), identifies the failed component, and shows you the reading or the failed part itself. Then you get the estimate with parts and labor broken out. You authorize before we start. No surprise upsells, no high-pressure replacement pitch.