Air Conditioning Repair in Houston, TX | Licensed & Insured AC Specialists

When your AC stops cooling on a 100°F Houston afternoon, you don’t have hours to compare quotes. 75 Degree AC handles AC repair across Houston, TX under Texas TACLA72152E, with same-day service before 2pm for most inner-Loop ZIPs and a flat $89 diagnostic waived when you approve the repair. No after-hours markup. No surprise invoices.

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$89

Flat Diagnostic

Waived with approved repair

Same-Day

Before 2pm

Waived with approved repair

5.0★

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Since 2016

TACLA Class A

License TACLA72152E

Professional AC Repair Services Across Houston, TX

75 Degree AC provides reliable air conditioning repair in Houston services for residential and light commercial properties. Our team delivers dependable AC repair services backed by hands-on technical experience, accurate system checks, and a clear commitment to honest, straightforward service on every call. As a locally owned AC contractor in Houston, we handle everything from central air conditioning systems to ductless mini-splits and heat pumps. Every repair is performed by trained technicians who take the time to find the real cause of the problem, walk you through the solution, and complete the work the right way.

We Show You the Failed Part Before Quoting

The most common story we hear from new customers in Houston is some version of this: another company quoted them $14,000, $22,000, or $32,000 for a “new system” when the actual problem turned out to be a $250 capacitor. It happens often enough in this market that it’s the first thing we address. When our technician finishes the diagnostic, you see the failed component pulled out of your system. The bulged-top run capacitor. The pitted contactor with melted contacts. The seized condenser fan motor with the burned winding. Whatever it is, you hold it in your hand, and the repair quote is line-itemed in writing before any tool comes back out of the truck.If we ever recommend replacement instead of repair, we present the repair quote and the replacement quote side by side, plus the math that actually justifies the decision: the 50% Rule, the $5,000 Rule, your system’s age, and what CenterPoint Energy’s 2026 rebate would offset.

Our Air Conditioning Repair Services Across Houston, TX

Central AC Repair

Central AC repair covers the full system from the condenser outside to the air handler inside. A burnt contactor, failing blower motor, or refrigerant pressure drop are the most common faults we find on service calls.We run a full electrical and pressure check before touching anything and give you a written quote on the spot.

Mini-Split AC Repair

Mini-split AC repair is not always straightforward because the fault can sit in the indoor unit, the outdoor unit, or the communication between the two. Dirty evaporator coils, refrigerant leaks, and sensor errors are the issues we find most on mini-split calls. We diagnose the exact problem and fix only what needs fixing.

AC Leak Repair

AC leak repair has to be done at the source because a refrigerant leak does not fix itself. The longer it goes unaddressed the more it reduces cooling output, raises energy bills, and strains the compressor. We locate the leak, fix it properly, and recharge the system to the correct refrigerant level using our certified technicians.

Heat Pump AC Repair

Heat pump AC repair covers both sides of the system because a heat pump handles your cooling and heating from one unit. The most common faults we find are a failed reversing valve, low refrigerant charge, and a defrost cycle that will not complete. We test the full system before recommending any repair so nothing gets missed.

Emergency AC Repair

AC stopped working on a hot day and you need someone out fast? Emergency AC repair is available the same day across Houston seven days a week. We show up, run a full diagnostic, and give you a written quote before any work starts. No overtime charges, no hidden fees.

AC Compressor Repair

AC compressor repair starts with confirming the compressor is actually the problem because a failed compressor is the most expensive fault in any cooling system. We check refrigerant charge and electrical supply first before recommending repair or replacement.

What Does AC Repair Cost in Houston?

AC repair in Houston ranges $150–$900 in 2026, with most homeowners paying around $345 per HomeGuide data. Capacitor replacements run $150–$350; contactor swaps $250–$450; refrigerant leak repairs $300–$1,500. Houston runs 10–15% above national average due to ~2,200 cooling hours/year and 75% July humidity.

Our diagnostic visit: $89 flat, 7 days a week

The $89 diagnostic fee is disclosed before we dispatch the technician. It’s applied to your repair cost when you approve the quote, so if you do the repair, you don’t pay extra for the diagnosis. If we arrive and can’t identify the problem, you don’t pay the diagnostic fee. We do not add weekend, after-hours, or holiday markups. Same flat rate Saturday at 11pm as Wednesday at 2pm.

Houston AC Repair Price Ranges (2026)

Repair	Range	Notes
Diagnostic Visit	$89	Waived With Approved Repair
Run Capacitor Replacement	$150–$350	#1 Most Common AC Failure
Contactor Replacement	$250–$450	Second Most Common
Condenser Fan Motor	$550–$950	OEM Matched To Your Unit
Blower Motor	$700–$1,200	Indoor Air Handler
Refrigerant Recharge	$190–$500	Leak Repair May Be Required
Refrigerant Leak Detection + Repair	$300–$1,500	Nitrogen Pressure Test / UV Dye
TXV Replacement	$400–$800	Refrigerant Cycle Component
Compressor	$1,200–$2,500	Repair vs Replace Discussion
Coil Replacement	$1,500–$2,800	System Age Becomes A Factor

Refrigerant leak detection: what’s actually happening

A refrigerant leak is the second most common repair we run in Houston. The honest diagnostic sequence is: nitrogen pressure test or electronic leak detection first, repair the leak second, recharge third. In that order, every time. Refrigerant is a sealed-system fluid; it doesn’t get used up. If anyone keeps recharging your refrigerant without finding the leak, you’re paying twice for the same problem.

Why Houston runs 10–15% above the national average

Houston averages 102+ days above 90°F annually, and AC systems run roughly 2,200 hours per year here, nearly 30% more than the national average. Add 75% average July humidity and you get faster wear on capacitors, coils, contactors, and compressors. That’s why parts cost more here, why we recommend twice-yearly maintenance, and why a 10-year-old system here is in the same condition as a 15-year-old system in Chicago.

Common AC Repairs we Handle in Houston, TX

Run capacitors and start capacitors (the #1 Houston failure)

The run capacitor stores the electrical jolt that gets your compressor and condenser fan motor spinning. When it fails, the system appears completely dead even though every other component may be fine. Houston heat plus grid surges kill capacitors at 5–8 years here instead of 10–15. Visual giveaways: a bulged top, a leaking case, or a unit that hums but won’t start.

Contactors and condenser fan motors

The contactor is the high-voltage switch that energizes the compressor circuit. Pitted contacts, welded points, and burned terminals are the failure pattern. We carry 24V and 240V universal-fit contactors on every truck. The condenser fan motor fails from bearing failure, winding burnout, and shaft seizure. Capacitor failure often takes the fan motor with it, so we check both.

Blower motors (ECM vs PSC)

The blower motor lives inside the indoor air handler and moves conditioned air through your ducts. Older systems use PSC motors; newer systems use ECM motors that vary speed for humidity control. ECM motors cost more to replace but they’re the reason your newer system pulls moisture out of Houston air better than the old one did.

Refrigerant leaks: R-410A and R-454B

Houston systems from 2010–2024 typically use R-410A; new equipment from 2025+ uses R-454B per the EPA AIM Act phase-down. We service and recharge both. R-22 systems (pre-2010) are a different conversation: production ended and recharge can exceed $1,000 per pound. We’ll tell you honestly whether a recharge is throwing good money after bad.

Evaporator and condenser coil pinhole leaks

Houston humidity accelerates coil corrosion. Acid carryover from Gulf Coast pollen, condensate pooling, and copper-on-aluminum reactions create pinhole refrigerant leaks 2–3 years earlier than dryer markets. When the coil leaks, you’re typically looking at $1,500–$2,800 for replacement, and on a system over 10 years old that’s often the trigger to replace the condenser.

Compressor failure & TXV / drain line work

The compressor is the heart of the system and the most expensive single component; a replacement at $1,200–$2,500 is the moment to consider replacement. The TXV regulates refrigerant into the evaporator—failure shows as icing or short-cycling. Condensate drain clogs from algae are the universal Houston problem; clearing the line is a $150–$300 visit.

Blowing warm air despite the system running

The compressor isn’t engaging (capacitor or contactor), refrigerant is low, the condenser is dirty or the fan motor is dead, the thermostat is on ‘on’ not ‘auto,’ or the disconnect tripped. We diagnose all five in the first 30 minutes.

Ice on the indoor coil or refrigerant lines

In 100°F Houston weather your AC can freeze solid. Restricted airflow or low refrigerant lets the coil drop below freezing. Turn the system off, set the fan to ‘on’ to melt the ice, and call us. Running it while frozen damages the compressor.

Water leaking from the indoor unit or a ceiling stain

Almost always a clogged condensate drain in Houston. Algae grows faster in our humidity than any other major US market. A stuck or missing float switch means you find out the hard way. Same-visit clear, $150–$300.

Short-cycling: on and off every few minutes

The system should run in 15–20 minute cycles. On for 90 seconds, off for 3 minutes, repeat is short-cycling. Causes: oversized unit, low refrigerant, frozen coil, failing capacitor, or a bad thermostat. Each shortens compressor life.

Clicking, humming, or no startup at all

Clicking with no startup usually means the capacitor can’t start the compressor. Humming with no startup is the compressor trying to start against high head pressure or a locked rotor. Both diagnose in under 30 minutes.

Warning Signs Your Houston AC Needs Repair

AC Failures Houston Homeowners See That Other Markets Don't

Houston AC repair isn’t the same problem set as Dallas or Atlanta. Four failure modes show up here that competitors in dryer or less storm-exposed markets don’t structurally address.

Humidity-driven coil corrosion (the 75% July humidity problem)

Houston’s average July humidity is 75%. Gulf Coast pollen settles on coils, mixes with condensate, and creates an acidic film that eats copper and aluminum. Pinhole leaks show up 2–3 years earlier than inland. Twice-yearly maintenance with coil rinses gets you 13–15 years; once-a-year averages 10–12.

Post-storm capacitor surge (the Hurricane Beryl pattern)

After Beryl’s July 2024 outages, units that ran fine wouldn’t restart after power returned—most often start-capacitor surge damage from the grid restoration spike. Wait 3 minutes after power returns. Restarting on a damaged capacitor can grenade the compressor and turn a $250 fix into a $1,200–$2,500 repair.

CenterPoint outage thermal-overload lockout

Extended outages (over 4 hours) cause the compressor to try starting against a hot suction line and high head pressure; the thermal-overload protector locks it out and the system appears dead. The fix is usually just letting the unit sit with power on for 30–60 minutes so the overload resets. No parts, no labor.

Spring pollen and the blower wheel

Houston spring pollen clogs indoor blower wheels faster than any market we work in. A clogged blower drops airflow and cooling capacity and starts the cascade toward frozen coils. We carry a HEPA vacuum and a soft-bristle blower brush for this. The fix runs $200–$400.

Brands We Service

Carrier

Infinity 24ANB7 (variable-speed), Performance 24ACC6, Comfort 24ACB7

Trane

XV20i (variable-speed, 18–22 SEER2), XR16, XL18i

Lennox

Signature SL28XCV (28 SEER variable-speed), Elite XC25, Merit 14ACX

Goodman

GVXC20 (variable-speed), GSXC18, GSXN404 (R-454B-compatible)

Rheem

Prestige RA20, Endeavor Line, Classic Plus RA17

American Standard

Platinum AccuComfort (inverter), Gold S9V2, Silver SI

Daikin

Fit (slim-profile), 19 Series, Aurora ductless

Bryant

Evolution 187B, Preferred 124C, Legacy 113A

York

Affinity YXV, LX YHE, Latitude

Houston systems installed between 2010 and 2024 typically use R-410A refrigerant; new equipment installed in 2025 and beyond uses R-454B per the EPA AIM Act phase-down. We service and recharge both.

R-22 systems pre-2010 are a separate conversation: availability is limited and replacement is usually the honest recommendation. Verify your AC’s official SEER2 rating at ahridirectory.org.

For ductless and mini-split brand specifics, see our mini-split AC repair page →

TACLA #TACLA72152E and insurance filed with TDLR

Our Texas TACL license is TACLA72152E — Class A, no tonnage limit, valid statewide. Verify it at tdlr.texas.gov/LicenseSearch. Our $300K+ general liability insurance is on file with TDLR. Certificate available on request.

Meet Kenny Ho: Lead HVAC Technician

Kenny Ho is our lead HVAC technician. He holds EPA 608 Universal certification and is ACCA Manual J trained. He’s worked Houston HVAC since before 75 Degree AC opened in 2016, and his Google review profile has more named-tech mentions than any other employee.

230+ verified 5-star Google reviews

Our Google Business Profile sits at 5.0 stars across 230+ verified reviews, with neighborhood attribution from Heights, Memorial, Sugar Land, Katy, Cypress, Bellaire, and Meyerland customers. Every review is a real Houston AC repair with a written warranty.

Twice-yearly maintenance is the Houston standard

Houston’s 2,200 cooling hours and Gulf humidity wear systems faster than dryer markets. We recommend twice-yearly maintenance instead of the industry-standard once — the difference between a 13–15 year system and a 10–12 year one.

Our repair guarantee

✓ 12-month labor warranty on every repair ✓ Manufacturer parts warranty pass-through — typically 5–10 years; we never void it with off-brand parts ✓ 30-day same-problem return — if the exact same component fails within 30 days, we return at no diagnostic charge

HOW IT WORKS

Our Repair Process

From scheduling your appointment to testing the completed repair, every step follows a documented process designed to provide accurate diagnostics, transparent pricing, and dependable results.

Schedule with 2-hour confirmed window

When you call, our Houston dispatcher gives you a 2-hour arrival window. Same-day windows are available before 2pm Mon–Sat for most inner-Loop ZIPs, with a text confirmation of the window and the $89 diagnostic fee.

Live ETA text 20–30 minutes out

When the truck is 20–30 minutes away, our dispatcher texts you a live ETA with the technician’s name and TACL license number. You see who's coming before they ring the bell. If we're running behind, we call before the window closes, not after.

On-site full system inspection (60–90 minutes)

The technician walks the system from thermostat to outdoor unit: voltage, return airflow, filter, blower amperage, coil temperature, refrigerant pressures, subcool and superheat, fan motor amperage, capacitor microfarad test under load, and contactor inspection.

Pro-grade diagnostic tools

Fieldpiece SMAN 460 digital manifold gauges, Testo 552i micron vacuum gauge, Inficon TEK-Mate electronic leak detector, Fluke 902 FC clamp meter, CPS 600 EPA-compliant recovery scale. Diagnosis quality depends on the equipment. We're not guessing.

Written diagnostic + line-item quote on-site

You get a written report with the failed component named, the readings that confirmed it, the repair scope, and the line-item price. We show you the failed part. You approve the quote or you don't, and the $89 diagnostic fee is waived when you approve.

Repair on the same visit when possible

About 80% of Houston AC repairs we run are completed same-visit because we stock universal-fit capacitors, contactors, fan motors, blower wheels, drain pan kits, and R-410A on the truck. OEM-specific parts get ordered with the return visit scheduled before we leave.

System tested and confirmed before we leave

We don't leave until the system is cooling, the readings are within manufacturer spec, and you've verified the temperature is dropping. Every repair includes a 12-month labor warranty.

Service Areas Section

Same-Day AC Repair Across Greater Houston

Same-day service is available for most inner-Loop ZIPs when you call before 2pm Monday through Saturday. Our trucks dispatch from West 34th Street (77092) and cover the full Loop 610 footprint plus first-ring suburbs.

Inner-Loop ZIPs We Serve Same-Day

77002 77004 77006 77007 77008 77019 77024 77025 77027 77055 77056 77063 77080 77092 77098

Same-Day Suburbs

Katy Sugar Land Cypress Spring The Woodlands Pearland Pasadena Memorial Heights Bellaire Tomball Missouri City Baytown Fulshear Rosenberg

Houston Neighborhoods We Cover

Downtown Midtown Montrose River Oaks Galleria Meyerland Spring Branch Greater Heights Northwest Houston Greater Inwood Fairbanks / NW Crossing

If you're outside Loop 610 or in a farther suburb, we still serve you. Same-day timing depends on current dispatch load and traffic. Our dispatcher tells you on the phone before you commit, not after.

AC repair in Katy → Greater Heights → Northwest Houston (77092) → Downtown Houston →

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Faq

Frequently Asked Questions

How much does AC repair cost in Houston?

AC repair in Houston ranges $150-$900 in 2026, with most homeowners paying around $345 per HomeGuide and acrepairservicetx.com data. Common repairs: capacitor $150-$350, contactor $250-$450, condenser fan motor $550-$950, refrigerant leak $300-$1,500, compressor $1,200-$2,500. Houston runs 10-15% above national average due to ~2,200 cooling hours/year and 75% July humidity. 75 Degree AC quotes line-item pricing before any work begins.

Should I repair or replace my AC unit?

Two industry rules apply. The 50% Rule: if the repair cost exceeds half the price of a new system, replace. The $5,000 Rule: multiply your AC’s age by the repair cost. If it’s over $5,000, replace. Houston systems average 10-12 years (national 12-15) due to humidity and ~2,200 cooling hours/year. R-22 systems are replacement candidates regardless of age; R-22 production ended in 2010.

Is the diagnostic fee waived if I get the repair done?

Yes. 75 Degree AC charges $89 for the AC diagnostic. The fee is disclosed before dispatch, applied to your repair cost when you approve the quote. If we can’t identify the problem, you don’t pay the diagnostic fee. We do not add weekend, after-hours, or holiday markups to parts or labor. Same flat rate Saturday 11pm as Wednesday 2pm.

How long does AC repair take?

Most AC repairs are completed same-visit, within 1-3 hours. Capacitor or contactor swaps take 30-60 minutes. Refrigerant leak repairs take 2-4 hours including leak detection. Compressor replacements run 4-6 hours and may need a second visit to receive the matched OEM part. We give you the time estimate in writing before any work begins.

What Parts Of Houston Does 75 Degree AC Serve?

75 Degree AC provides HVAC services across Houston TX, supporting residential and light commercial properties throughout the city. Our service coverage reflects how HVAC demand actually works in Houston, from central neighborhoods to outer city districts. Customers rely on us for consistent service standards, clear communication, and dependable system support city-wide.

Downtown

East Downtown (EaDo)

Westwood

Midtown

Spring Branch (Central, TX)

University Place

Montrose

Gulfton

Meyerland

The Heights

Westbury

Eastwood

River Oaks

Memorial

Harrisburg / Manchester

Third Ward

Lazybrook / Timbergrove

Spring Branch (East Houston)

South Belt / Ellington

Trinity / Houston Gardens

Clear Lake (Houston City Portion)

Richmond

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