Trusted AC Leak Repair in Houston, TX - Stop the Damage Before It Spreads

A water stain near the air handler that was not there last week. An AC that runs for hours but still cannot get below 78. A hissing sound near the outdoor unit. These are common signs of a leak, and the problem only gets worse with time. 75 Degree AC repairs both refrigerant and water leaks in residential systems across Houston, TX using TACLA-licensed contractors and electronic detection equipment.

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Since 2016

TACLA Class A

License TACLA72152E

Over a Decade of Leak Detection and Repair Experience

AC leaks are not always obvious, and visible damage is rarely where the issue starts. AC Leak Repair in Houston, TX begins with proper detection. 75 Degree AC TACLA-licensed, fully insured contractors use professional equipment to trace refrigerant and water leaks to the actual point of failure. The repair cost is presented before work begins, covering refrigerant, coil sealing, drain clearing, and replacement parts in one flat-rate number. No revisions midway through the job and no charges you did not approve upfront. Every completed repair is backed by our quality workmanship guarantee. Water saturates drywall and feeds mold within hours. Refrigerant loss grinds down the compressor a little more with every cooling cycle. Same-day dispatch is available for most leak calls so neither type of damage has time to escalate into a bigger, more expensive problem.

Refrigerant and Water Leaks We Find and Fix

AC leaks fall into two categories: refrigerant leaks that rob the system of cooling capacity, and water leaks that damage your home from the inside. Here are the most common leak problems we repair and how we handle each one.

Refrigerant Leak in Central AC

When refrigerant escapes through a corroded coil, cracked line set, or loose fitting, the system loses cooling power gradually. Our contractors use electronic detection to find the exact source, seal it, and recharge to manufacturer spec.

Condensate Drain Line Clog Causing Water Leak

A blocked drain line is the most common cause of indoor water leaks from an AC. Algae, mold, and debris build up in the line, water backs up into the pan, and overflows onto ceilings or floors. We flush, clear, and treat the line to stop it.

Evaporator Coil Pinhole Leak

Formicary corrosion eats microscopic holes through copper coil tubing over time. The system cycles more often, takes longer to cool, and loses refrigerant between recharges. We pressure-test the coil to confirm the leak and recommend repair or replacement.

Line Set Refrigerant Leak

The copper lines between indoor and outdoor units can leak at fittings, wall penetrations, or vibration points. We trace the full run with electronic detection, pinpoint the fault, and repair or replace the damaged section with a verified pressure test.

Frozen Evaporator Coil Causing Water Overflow

Ice builds on the coil from restricted airflow or low refrigerant. When the system cycles off, the ice melts and overwhelms the drain pan. We fix the root cause of the freeze and clear the overflow so the cycle does not repeat.

How AC Leaks Show Up Before the Real Damage Starts

Mini-split systems usually show warning signs before they stop cooling completely. Some problems affect airflow, some show up as ice or noise, and others appear through flashing codes on the display. Catching these issues early can help prevent a larger breakdown and a more expensive repair. Here are common signs that it is time to schedule Mini-Split AC Repair in Houston.

Why Choose Us

Why Choose 75 Degree AC for Central AC Repair in Houston?

Accurate Leak Source Identification

Electronic refrigerant detection and pressure testing confirm exactly where the breach is. A recharge without locating the leak wastes refrigerant and leaves the real problem untouched. Our contractors find it first.

Quality Workmanship Guarantee

Every AC leak repair is completed to a professional standard and backed by our workmanship guarantee. If the repair does not hold, we come back and make it right. That commitment applies to refrigerant seals, drain line work, and coil repairs alike.

Pricing Locked Before Any Work Starts

The full repair cost is quoted in writing before tools come out. Coil repairs, drain line clearing, refrigerant recharges, parts. The number you approve is the number on the invoice. No midway revisions.

Same-Day Leak Repair Available

Water damage and refrigerant loss both get worse by the hour. Same-day dispatch is available for most leak calls so the damage stops today, not next week when an appointment opens up.

How We Find and Fix Your AC Leak Fast

Call and Describe What You Are Seeing

Tell us if water is on the floor, ice on the lines, warm air from the vents, a hissing sound.

Identify the Leak Type and Trace the Source

The contractor determines whether it is a refrigerant leak, a water leak, or both. Electronic detection traces refrigerant breaches through the coil, line set, and fittings.

Confirm the Fault and Lock In the Price

You hear exactly what is leaking and where. The flat-rate repair price is presented before any work begins. If the diagnosis points to coil replacement instead of a patch, you see both options with honest cost comparisons.

Seal, Repair, or Replace the Failed Component

Refrigerant leaks are sealed at the source and the system is recharged to spec. Drain lines are flushed and treated. Coils or pans are replaced when repair is no longer reliable.

Pressure Test and Verify the System

Refrigerant repairs are pressure-tested to confirm the seal holds. Drain lines are verified flowing. Cooling output and system pressures are checked before the contractor leaves.

Our Recent Projects in Houston

Business Hours

Monday 7:00 AM – 9:00 PM

Tuesday 7:00 AM – 9:00 PM

Wednesday 7:00 AM – 9:00 PM

Thursday 7:00 AM – 9:00 PM

Friday 7:00 AM – 9:00 PM

Saturday 8:00 AM – 8:00 PM

Sunday 8:00 AM – 5:00 PM

Understanding the Two Types of AC Leaks

Not all AC leaks are the same. A refrigerant leak is a pressurized gas or liquid escaping from the sealed circuit inside your AC system. Refrigerant does not get used up during normal operation. If the level is low, there is a leak somewhere that needs to be found and sealed. Handling refrigerant requires proper licensing and training, which is why this is not a DIY repair. A water leak is different. Your AC produces condensation as it removes humidity from the air, and that water drains through the condensate line. When the line clogs or the pan cracks, the water overflows. Both types need professional attention, but they are diagnosed and repaired differently. Knowing which type you have before starting work is what separates a permanent fix from a temporary patch.

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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About Houston, TX

Houston, TX ranks as the fourth-largest city in the United States, with a population spread across more than 670 square miles of urban, suburban, and rural land. The region’s subtropical climate produces average summer highs in the mid-90s, humidity levels that regularly exceed 70 percent, and a cooling season that stretches from April through October. That combination puts constant demand on residential AC systems and makes leak-related failures more common than in drier parts of the country. The city’s housing stock ranges from pre-war bungalows and mid-century ranch homes to modern townhomes and high-rise condos. Because Houston has no traditional zoning ordinances, these property types sit side by side across every neighborhood. AC systems in older homes face different leak risks than newer construction, and the repair approach needs to account for the building’s age, ductwork condition, and equipment type. 75 Degree AC provides AC leak repair across Houston and the surrounding metro, serving homeowners in every type of property with the same standard of licensed, insured, and professional service.

Is It Safe to Keep Running My AC If I Suspect a Refrigerant Leak?

Running an AC with a refrigerant leak puts increasing strain on the compressor with every cooling cycle. The system works harder to compensate for the lost charge, which generates more heat and wear on internal components. Continuing to run it risks turning a repairable leak into a full compressor failure. Shut the system off and schedule a diagnostic as soon as possible.

What Should I Do If My AC Is Leaking Water Inside the House?

Turn the system off to prevent further overflow and water damage. Check if the drain pan under the indoor unit is full. Do not run the AC until the drain line is cleared. A blocked condensate drain is one of the fastest and most common AC leak repairs, and most are completed on the same visit.

Can a Refrigerant Leak in a Home AC System Be Fixed Permanently?

Yes, in most cases. Line set and fitting leaks are sealed and pressure-tested to confirm they hold. Evaporator coil leaks caused by corrosion may require section repair or full coil replacement depending on severity. A properly sealed and pressure-tested repair will hold long term.

How Can I Tell If My AC Is Leaking Refrigerant or Just Losing Cooling?

A refrigerant leak usually shows specific signs: ice forming on the line set or indoor coil, a hissing or bubbling sound near the unit, and the system running longer without reaching the set temperature. If you have recharged the system before and it lost cooling again within months, a leak is almost certainly the cause.

Why Does My AC Drain Line Keep Clogging in This Climate?

The high humidity in this region means your AC removes large volumes of water from the air every day. That constant moisture flow creates ideal conditions for algae, mold, and biofilm to grow inside the drain line. Annual drain line flushing and treatment prevents repeat clogs and the water damage they cause.

What Causes an AC Evaporator Coil to Develop a Refrigerant Leak?

Formicary corrosion is the most common cause. Formic acid, found in many household cleaning products and building materials, reacts with the copper tubing in the coil and creates microscopic pinholes over time. The humid climate accelerates this process. Once the corrosion reaches a certain point, repeated recharges stop working and coil replacement becomes the only lasting fix.

10+

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Experience