
Signs like uneven cooling, loud operation, and constant repairs often point to one solution: it's time for a replacement. A modern, high-efficiency AC system isn’t just about staying cool—it’s about staying smart with your comfort, budget, and energy usage.
At DT Air Conditioning & Heating of Frisco, we take pride in providing dependable AC replacement solutions tailored to your home’s unique needs. Our team doesn’t show up with a one-size-fits-all mindset. Every home is different, and your cooling system should be, too. We believe in honest recommendations, transparent pricing, and premium workmanship that stands the test of time.
Helping homeowners throughout Frisco choose the right AC system is something we take seriously—and personally. Replacing an air conditioner is a big decision, and you deserve to feel confident from the first conversation to the final install.
You’ve got choices when it comes to HVAC companies. But here’s what sets us apart:
From the first call to final inspection, we treat every job like it’s happening in our own home.
Holding on to an outdated or underperforming AC system might seem like a money-saving move—until repair bills start stacking up and energy bills climb. Over time, your older system works harder to cool the same space, burning more energy and delivering less comfort.
Upgrading to a newer system can mean:
The benefits aren’t just about today—they last for years to come.


We at DT Air Conditioning & Heating of Frisco know what Frisco summers can throw your way. This city experiences real heat, and an underpowered AC unit just won’t cut it. That’s why so many local homeowners trust our team—not just for expert-level installation, but for a smooth and stress-free experience every time.
Our team works across Frisco neighborhoods every day. Whether you're in Panther Creek, Phillips Creek Ranch, or near Main Street, we’re familiar with the unique layouts and insulation levels of homes in your area. That local knowledge helps us deliver efficient, right-sized systems that perform beautifully year after year.
We make sure every detail is handled with care. Here’s how our AC replacement process works:
No surprises. No shortcuts. Just reliable service and quality craftsmanship from start to finish.
If your unit is over 10–15 years old, needs frequent repairs, or no longer cools effectively, it’s likely more cost-effective to replace it than to keep repairing it. Energy efficiency standards have improved dramatically, so a new unit often pays for itself over time.
That depends on your home’s square footage, insulation, windows, and layout. We perform a full load calculation to determine the perfect size—not too big, not too small—so your system runs efficiently without short cycling.
Yes. We offer flexible financing options with approved credit, so you don’t have to delay comfort. Our team will walk you through everything and help you apply quickly.
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.