24/7 Live Line: (281) 549-0799
4.8 (210 Google reviews) • Licensed TACLB #TX-88214 • Insured • NATE Certified
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AC Not Cooling · Priority Dispatch Active

AC Not Cooling in Houston? Here's What's Likely Wrong

An AC that runs but doesn't cool is one of the most common calls we get in Houston summers. Our techs diagnose the actual cause instead of guessing.

TACLB #TX-88214 NATE-Certified Techs $0 Diagnostic w/ Repair
~35-Minute Houston-Wide Emergency Dispatch. Live technician answered in under 60 seconds — no call center loop.
NATE ACTIVEHOUSTON-WIDE
An HVAC technician performing AC Not Cooling in Houston, TX
NATE-Certified Field TechsDiagnostic tools on every truck, every call.
Emergency Dispatch Matrix

Select Your Situation

Active units staged across Houston, Katy, Sugar Land & The Woodlands.

Before We Arrive

Quick Checks That Sometimes Solve It

A few things worth checking before assuming the worst.

1. Filter Check
2. Outdoor Unit
3. Thermostat
4. Ice Buildup
Protocol Focus · Minute 0–5

Check for Ice on the Indoor Coil or Refrigerant Lines

Ice buildup is a common sign of restricted airflow or low refrigerant, and running the system further with ice present can damage the compressor.

If you see ice, turn the system to "Fan Only" mode and let it thaw completely — this can take a few hours.
A dirty filter is the most common cause of restricted airflow leading to ice.
Do not run the system in "Cool" mode again until the ice is fully melted.
Standard of Excellence

How We Compare to a Typical Houston HVAC Company

Houston HVAC ServicesIndustry Average
Free diagnostic with any repair$89–$150 diagnostic fee
Live line answered 24/7Voicemail after 6pm
~35-min average dispatch2–4 hour arrival windows
Written price before repair startsVerbal quote, surprise total
NATE-certified techniciansNo certification requirement
1-year written repair warranty30-day or no warranty
11
Years Serving Houston
8,200+
Systems Repaired
35-min
Average Dispatch
4.8★
210 Verified Reviews
Credentials

Certified. Licensed. Accountable.

Every technician holds NATE certification and Texas TACLB licensing before ever stepping on your property.

NATE Certified
TACLB #TX-88214
BBB Accredited
EPA 608 Certified
The 5-Step Field Protocol

From Your Call to a Cool Home

01 · FIRST 10 MIN

Dispatch & Safety

Live tech walks you through breaker and thermostat checks while a truck is routed.

02 · ~35 MIN ARRIVAL

Full Diagnostic

Refrigerant pressure, electrical, and airflow tested — not a guess.

03 · SAME VISIT

Written Price

You approve a flat, itemized price before any part is touched.

04 · SAME VISIT

Repair or Replace

Most repairs completed same-visit from a fully stocked truck.

05 · CLOSEOUT

Verified Cooling

We confirm supply-air temperature drop before we leave.

Comprehensive Houston Services

Complete HVAC Services

Transparent Estimates

What This Type of Repair Costs in Houston

Cost depends on the actual cause found during diagnosis.

CAPACITOR/CONTACTOR
$150–$400

Common electrical component replacement.

REFRIGERANT LEAK
$400–$1,200

Leak repair plus refrigerant recharge, depending on leak location.

COMPRESSOR
$1,200–$2,800

Compressor replacement for confirmed compressor failure.

Why This Happens So Often in Houston

Common Root Causes We Find

REFRIGERANT

Slow refrigerant leaks

Small leaks at fittings develop over years and reduce cooling capacity gradually.

DIRTY COILS

Coil buildup

Houston dust and pollen build up on coils, insulating them and reducing efficiency.

AGE

Aging compressors

Compressors nearing end-of-life struggle most during peak heat.

AIRFLOW

Blocked vents or ducts

Closed vents or crushed ductwork restrict airflow needed for cooling.

Verified Houston Reputation

Rated 4.8 Stars Across 210+ Reviews

★★★★★

"AC died at 9pm in July. Tech was at our door in 30 minutes and had it running again within the hour."

— Jennifer M., Katy
★★★★★

"Gave us the price upfront, no surprise charges. Compressor was clearly explained before they touched it."

— Carlos R., Sugar Land
★★★★★

"Called three companies at 11pm — only one picked up. Real technician walked me through safety steps."

— Sarah L., The Woodlands
Questions

Frequently Asked Questions

Why is my AC running but not cooling?

The most common causes are low refrigerant, a failing capacitor, dirty coils, or restricted airflow — a diagnostic identifies which applies to you.

Is it safe to keep running my AC if it's not cooling well?

Running it briefly is usually fine, but continued operation with ice buildup or a refrigerant leak can cause compressor damage.

How much does it cost to recharge refrigerant?

This depends on finding and repairing the leak first — simply adding refrigerant without fixing the leak is a temporary, wasteful fix.

Could this mean I need a whole new system?

Not necessarily — we'll give you an honest assessment of repair cost versus replacement value for your specific system's age and condition.

How fast can you diagnose this?

Our average dispatch time is about 35 minutes, with most diagnostics completed within an hour of arrival.

Your AC Won't Fix Itself.

Same-day dispatch open now across Houston, TX.

Call (281) 549-0799