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An air conditioner can fail at any time, but a breakdown during an Oklahoma heat wave can quickly become dangerous. Our team will provide the fastest available response and help you determine what to do next.
Start with what you notice
Signs your AC needs repair.
Some cooling problems are obvious. Others begin with small performance changes that can become more serious if ignored. Contact the Mark Hill team if you notice any of the following:
You do not need to diagnose it yourself. Tell us what you are experiencing, and we will find the cause.
Find The Actual Cause
Common AC problems we repair.
Cooling problems can stem from electrical components, airflow restrictions, refrigerant issues, drainage problems, control issues, or normal equipment wear. Our technicians diagnose and repair problems involving:
01
Electrical Components
Capacitors, contactors, relays, wiring, and other electrical components help start and operate your cooling equipment. A failed component may prevent the system from starting or cause it to shut down unexpectedly.
02
Refrigerant Leaks
Low refrigerant is often a sign of a leak rather than something that should be refilled. Our technicians can inspect the system, identify the problem, and explain the available repair options.
03
Frozen Evaporator Coils
Restricted airflow, refrigerant problems, dirty coils, or other system conditions can cause ice to form. Continuing to operate a frozen system can lead to additional damage.
04
Condensate Drain Problems
Air conditioners remove moisture as they cool. A clogged drain or failed condensate component can cause water to collect around the indoor unit or trigger a safety switch that shuts the system down.
05
Blower and Fan Motor Problems
Blower and condenser fan motors move air through the system and release heat outdoors. Motor or fan problems can reduce airflow, create unusual noises, or stop the cooling cycle entirely.
06
Compressor Problems
The compressor is one of the most important components in an air conditioning system. If it is struggling or has failed, we will explain whether repair is practical and how the cost compares with replacement.
We Repair All Major AC Brands
- Trane®
- Goodman®
- Lennox®
- Carrier®
- York®
- Bryant®
- Rheem®
- Ruud®
- American Standard®
- And more
The Mark Hill Difference
Trusted HVAC Experts Tulsa Since 1967
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Honest, Upfront Estimates
You approve the number before we start. No overtime surprises, no pressure to buy more than you need.
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Trane® Comfort Specialist
Oklahoma's No. 1 Trane® dealer, with techs certified on the equipment we install.
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NATE-Certified Technicians
Every tech on our trucks is background-checked, drug-tested, and NATE-certified.
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Family Owned, Locally Operated
Serving the Tulsa metro since 1967. Not a franchise, not a call center.
Catch developing issues before peak summer.
Some air conditioning failures develop gradually as components wear out, connections loosen, coils accumulate debris, or airflow becomes restricted.
Annual AC maintenance gives a technician an opportunity to inspect the equipment before the most demanding part of summer. While maintenance cannot prevent every breakdown, it can help identify developing issues and support more dependable system operation.
What We Do
What Tulsa Homeowners Are Saying About Mark Hill
Frequently Asked Questions About AC Repair
Before you schedule.
A few quick answers about your AC repair service questions and our coverage across the Tulsa metro.
Do you offer emergency AC repair in Tulsa?
Yes. Mark Hill Heating & Air is available 24/7 for urgent air conditioning problems. Call (918) 258-8855 for the fastest available response.
What air conditioner brands do you repair?
We repair all major residential AC brands, including Trane, Carrier, Lennox, Goodman, Rheem, Ruud, York, Bryant, American Standard, and others.
Why is my air conditioner running but not cooling?
Possible causes include restricted airflow, a dirty coil, a refrigerant issue, a failing compressor, an electrical problem, or a problem with the thermostat or controls. A technician must inspect the system to identify the actual cause.
Why does my AC keep turning on and off?
Frequent cycling can be connected to thermostat issues, restricted airflow, electrical components, refrigerant problems, system sizing, or other equipment conditions. Continuing to operate the system may place additional strain on its components.
Should I turn off my AC if it is frozen?
Yes. Continuing to run a frozen air conditioner can worsen the problem. Turn off the cooling function and contact Mark Hill for service. Do not attempt to remove ice with tools or direct heat.
Is it better to repair or replace my air conditioner?
That depends on the repair cost, the system’s condition, the equipment’s age, the breakdown history, efficiency, and its ability to cool your home. Mark Hill will compare the options and explain whether the repair provides reasonable value.
Can you repair my system if Mark Hill did not install it?
Yes. We repair and maintain all major HVAC brands, regardless of who originally installed the equipment.
Honest AC Repair guidance
Get Your Air Conditioner Cooling Again
Don’t spend another hot Oklahoma day waiting for a cooling problem to resolve itself. Call Mark Hill Heating & Air for a professional diagnosis, an upfront estimate, and honest guidance about the best way to restore your comfort.