We service and repair most major HVAC brands
Expert Air Conditioner Repair – Major HVAC Brands
Your Climate – Our Commitment
With years of dedicated AC service in Central Texas, including Temple, Killeen, and Belton, we understand the importance of a reliable HVAC system for your home or office. Our comprehensive range of services, from air conditioning repair, heating services, HVAC repair, ductless systems, heat pumps, AC maintenance, and system replacements, are designed to ensure your space is not just comfortable, but also energy-efficient and safe.
Our team of experts is committed to delivering the BEST service, whether you’re looking for temple HVAC repair, require urgent AC repairs, need emergency air conditioning repair, or routine indoor air quality maintenance. We believe in quality, reliability, and customer satisfaction. Let us take care of your HVAC needs so you can enjoy peace of mind, no matter the season.
Lockey Air has been dedicated to keeping Central Texas cool and comfortable for years, proudly serving homeowners and businesses across Temple, Killeen, Belton, and nearby areas. Our expertise in AC services includes everything from routine AC maintenance and cooling system repairs to full air conditioning replacements and HVAC system upgrades. We are your go to experts for ensuring your space remains both cozy and energy efficient. With our extensive experience, there’s hardly any cooling problem we haven’t tackled. Trust us to take care of your air conditioning needs with professionalism and care.
Trusted HVAC Services & AC Repair in Temple, Belton, Killeen & Central Texas
With over 80 years of combined experience, we have been helping Central Texans for decades stay cool in the summer and warm in the winter.
Lockey Heating and Air Conditioning understands that problems with heating and cooling systems can make you feel extremely uncomfortable, especially during ridiculously hot summers or freezing winter weather. It can be hard to find a trustworthy and reliable air conditioning repair service if you are not sure what to look for. Luckily, our customer service team at Lockey Air is always ready to help you quickly with your urgent HVAC needs, including AC repair, heating repair, air conditioning maintenance, HVAC troubleshooting, system diagnostics, and emergency cooling service.
If you need help installing, repairing, or maintaining your HVAC system, our skilled team is ready to offer fast help whether you are in Temple, Belton, Killeen, Harker Heights, Waco, Georgetown, or anywhere in between. We provide residential and commercial HVAC service to most of Central Texas’ residents.
If you need service on your HVAC system for your home or business, our team can help with air conditioning repair, furnace repair, heat pump service, ductless mini split systems, thermostat issues, airflow problems, refrigerant leaks, and routine HVAC maintenance. And if it’s time to replace your unit, we offer a wide range of high quality air conditioners, heating systems, and energy efficient HVAC products from top brands in the industry. We will work with you to ensure that your new system is installed properly, safely, and quickly.
By properly servicing and maintaining your HVAC unit(s), you can avoid these situations.
Strange Noises
In most cases, strange noises coming from your HVAC unit during operation is not normal. Noises like grinding, hissing, rattling or other odd noises could point to larger issues within your unit. Scheduling an air conditioning or heating service call quickly can help us evaluate your HVAC unit and provide recommendations before it completely fails. Our experienced technicians will resolve your issue the first time.
High Energy Bills
If you have an undersized HVAC unit (maybe you’ve expanded your indoor area or it wasn’t sized properly when purchased), the unit does not have the capacity to properly heat and cool your home or office. Or maybe you’ve seen an increase in your energy bill recently, which could indicate a dying HVAC unit. Either way we recommend you schedule a service call ASAP to avoid as much down-time as possible.
HVAC Unit is 10+ Years Old
If your HVAC unit is over 10 years old, it’s life may be coming to an end, especially if it has not been maintained properly and serviced every six months. In addition, it most likely uses R22 freon which has been retired. Replacing your old system with a new, energy-efficient unit will give you peace of mind while saving you money on your monthly energy bill.
HVAC Not Blowing Cool Air
If it’s hot outside and your air conditioning unit is not blowing cool/cold air, you may have an issue with your compressor or refrigerant. If your HVAC unit is older and uses R22 freon, the cost of converting it may be more than replacing the unit itself – not to mention the energy cost savings a new unit will bring. Schedule service so we can take a look and advise you on the best way to proceed.
Poor or Weak Airflow
If your HVAC unit is barely blowing air, you could have something as minor as a clogged filter, but it may be an indicator of a broken motor, blower fan or something even more serious. Either way if your HVAC isn’t performing at it’s peak level, your energy costs will increase and the unit’s performance will continue to decrease. We can analyze the issue and give you an objective opinion of how to proceed to get the best value for your money.
Increased Humidity Levels Inside
An air conditioner is supposed to pull humidity from the air in your home. If you are experiencing increased humidity inside your home or office, it could be an indicator that your HVAC unit is not performing at it’s peak level, or you may have an under-sized unit. This also results in decreased air quality and can lead to mold or mildew buildup inside the home. We recommend having your unit serviced ASAP by one of our trained, experienced technicians here at Lockey Heating and Air.
Proud Partners with the Following HVAC Manufacturers
Frequently Asked Questions
Why is my air conditioner running but my home is still not cooling properly?
An air conditioner can run continuously without cooling your home if there are issues such as restricted airflow, frozen evaporator coils, low refrigerant, thermostat malfunctions, or failing components. A professional AC repair inspection can identify the actual cause and prevent unnecessary part replacements.
Can I keep using my air conditioner if it's cooling, but not as well as it used to?
It’s possible, but it’s not recommended. Reduced cooling performance often means your system is working harder to reach the desired temperature, which can increase energy bills and place extra strain on key components. Addressing the issue early may help avoid a more extensive AC repair later.
Does an air conditioner always need refrigerant when it stops cooling?
Not necessarily. Many homeowners assume low refrigerant is the problem, but poor cooling can also be caused by clogged filters, electrical faults, frozen coils, or airflow restrictions. Because refrigerant circulates in a sealed system, low levels often indicate a leak that should be professionally repaired rather than simply topped up.
Can a small air conditioning problem become a major repair later?
Yes. Minor issues such as weak airflow, unusual noises, short cycling, or inconsistent cooling can put additional strain on your air conditioning system over time. Scheduling AC repairs early can help prevent unexpected breakdowns and reduce the risk of more expensive repairs later.
Why does my AC freeze up during the summer?
A frozen air conditioner isn’t always caused by hot weather. Dirty air filters, blocked airflow, refrigerant leaks, or blower problems can all allow ice to form on the evaporator coil. Continuing to run the system may worsen the damage, so it’s best to switch it off and arrange an inspection.
How can I avoid emergency AC repairs during the hottest months of the year?
Scheduling seasonal maintenance, replacing air filters regularly, and paying attention to early warning signs like unusual noises, weak airflow, or longer cooling cycles can help reduce the chance of unexpected AC repairs when your system is working hardest.

