
Is your AC unit struggling to keep you cool?
Don't let the Texas heat take control! At DT Air Conditioning & Heating, we're here to ensure your home stays comfortable all year round.
Living in Richardson, TX, means dealing with scorching summers and mild winters. These extreme temperatures can put a lot of stress on your AC unit, leading to several common issues:
Older units often experience frequent breakdowns, leaking refrigerant, or poor cooling performance. In these cases, repairs may only provide temporary relief. Investing in complete air conditioning installation services can save you money on repairs while ensuring dependable cooling for years to come.
Your AC unit is a complex system with several components that can malfunction. Here's a breakdown of some key parts that often need repair:
Recognizing the signs that your AC unit needs repair can save you from more significant issues down the line. Here are some indicators to watch out for:


We at DT Air Conditioning & Heating believe your AC service should be simple, straightforward, and stress-free. Our technicians are highly trained, friendly, and focused on solving problems the right way—never rushing through repairs or pushing unnecessary services.
Here’s what sets us apart for AC repair in Richardson:
From the first call to the final system check, our process is built around transparency and efficiency.
When you contact us, we gather the details about your system’s symptoms and arrange a convenient service time. Upon arrival, our technician inspects the system thoroughly, checking electrical components, refrigerant levels, airflow, and other critical elements. Once we pinpoint the issue, we explain our findings in easy-to-understand terms—no technical overload—then present your repair options.
Because our service trucks are stocked with many common AC parts, repairs often happen during that same visit, minimizing downtime.
We at DT Air Conditioning & Heating have worked with Richardson homeowners for years, which means we understand the climate demands and how they affect cooling systems. From unexpected spring heatwaves to the peak of summer, we’ve seen what local weather can do to AC performance. That knowledge helps us recommend solutions that last—not just quick fixes.
Our goal isn’t only to restore cooling—it’s to ensure your AC is running at peak efficiency so you can enjoy steady comfort and lower energy costs.
Every repair call is handled with the same care we’d want for our own homes. That means showing up on time, treating your property with respect, and doing the job right the first time. We take pride in our work and back it with a satisfaction guarantee—because your trust matters.
While we’re always ready to repair your AC, we know you’d rather avoid breakdowns altogether. That’s why we also offer maintenance services designed to keep your system reliable year-round.
Our maintenance visits include:
Routine maintenance not only reduces emergency repair calls but also extends the life of your AC system.
We at DT Air Conditioning & Heating believe you should know exactly what to expect when it comes to cost. Before starting any work, we provide a detailed quote so there are no surprises. We also explain the repair so you understand where your money is going and why it’s necessary. Our goal is to provide the best value—not just the lowest price—by ensuring repairs are done right the first time.
Choosing the right HVAC company can make all the difference in how smoothly your repair goes. Homeowners in Richardson choose us because:
At DT Air Conditioning & Heating, we take pride in serving the Richardson, TX community. Our team understands the unique challenges posed by the Texas climate and is dedicated to providing top-notch AC repair services to keep your home comfortable. Whether you live near the bustling Richardson Square or the serene Cottonwood Park, we're just a call away. Our local expertise ensures that we can quickly diagnose and fix any AC issue you might encounter.
Even with regular maintenance, AC units can sometimes encounter issues. If your system is not cooling as it should or has completely stopped working, don’t lose your cool—call DT Air Conditioning & Heating for expert AC repair services in Richardson, TX. Our repair services include:
When you choose DT Air Conditioning & Heating for your AC repair needs in Richardson, TX, you can rest assured that you’re getting the best service possible.
Why is my AC blowing warm air?
How often should I have my AC unit serviced?
What are the signs that my AC needs repair?
Can I repair my AC unit myself?
How long does an AC repair typically take?
Homeowners often ask what “maintenance” actually includes. While every system is a little different, a high-quality furnace tune-up commonly focuses on:
A clogged filter is one of the most common causes of reduced airflow and efficiency, which is why regular furnace maintenance is essential. ENERGY STAR guidance is frequently summarized as changing filters at least every 90 days (and more often in heavier-use situations).
This is one reason many experts still recommend servicing before heavy winter use—maintenance helps reduce the chance of mid-season breakdowns and safety-related issues.
Most furnaces benefit from professional service once per year, ideally before heating season. Annual maintenance is widely recommended to support efficiency, reduce breakdown risk, and help your system run as designed.
In North Texas, a practical approach is:
There isn’t one schedule that fits every home, but these general guidelines are common:
What changes the timeline?
Pro tip from our team: Put a recurring reminder on your phone to check the filter monthly. If it looks loaded, replace it—even if it hasn’t hit your “usual” interval.
You can absolutely handle several safe, high-impact steps between professional visits. Here are our go-to homeowner-friendly actions:
If you notice any of the following, your system may be overdue for service:
Many HVAC resources emphasize that ignoring maintenance can lead to breakdowns, higher repair costs, and safety concerns—especially when issues show up right before peak winter demand.
If you’re in Plano and your furnace is showing these symptoms, it’s smart to have it checked before a small issue becomes a full system shutdown.
Efficient heating is mostly about reducing waste—wasted airflow, wasted run time, and wasted heat delivery.
Here’s how maintenance directly supports efficiency:
Furnace manufacturers and HVAC educators commonly note that maintenance helps extend equipment life and supports efficient operation.
For most Plano homeowners, fall is the sweet spot—before cold snaps, before the busy season, and while your system can be tuned for peak winter performance. Guidance targeted to the Plano area also reinforces that pre-winter service reduces the odds of emergency calls during the coldest days.
That said, the “best” time is also:
We’re not a pop-up contractor. DT Air Conditioning & Heating is a family-owned company that’s served Plano, Allen, and surrounding DFW communities for over 20 years, and we focus on doing work the right way—clear options, honest recommendations, and quality service.
When we perform furnace maintenance in Plano, TX, we’re aiming for a specific result:
Furnace maintenance typically includes inspection, cleaning, and testing of key components—especially airflow, controls, and safety-related operation—so your system runs efficiently and reliably.
In many cases, yes. Maintenance is designed to catch early wear, support efficiency, and reduce the risk of surprise breakdowns during high-demand periods.
A common recommendation is once per year, ideally before heating season. Older systems or high-use homes may benefit from more frequent check-ins.
Many households do well checking monthly and replacing within a 1–3 month range, but the right interval depends on pets, dust, allergies, and filter type. ENERGY STAR guidance is often summarized as changing HVAC filters at least every 90 days (and more often in peak season).
Uneven heating, frequent cycling, strange noises, unusual odors that persist, weak airflow, or unexplained bill increases are all signs your furnace should be checked.