
At DT Air Conditioning & Heating, our team specializes in replacing outdated or failing AC systems with high-quality, energy-efficient units built to handle the most brutal summers. From the first conversation to the final system check, we focus on delivering reliable cooling, long-term savings, and a stress-free experience for you and your family.
Every home is different, and so is every AC replacement. We take the time to evaluate your specific needs, offering honest guidance on the best solutions. Homeowners across Richardson trust us because we combine technical skill with genuine customer care.
Here's what gives us a competitive edge:
Replacing an AC isn't something you do every year, so we keep the process straightforward:
This step-by-step approach ensures no surprises and a seamless transition to a more efficient cooling system.
Our roots in Richardson run deep. We've worked in homes across the city, giving us a first-hand understanding of how the local climate and housing styles affect cooling needs. That insight allows us to recommend systems that truly fit how our neighbors live. Whether your home is a few years or decades old, our experience ensures we can install a replacement AC that matches your comfort and efficiency goals.


Sometimes it's obvious, but other times it's less so. If you notice these issues, it's worth having our team evaluate your system:
When you choose us, you choose a partner invested in your long-term comfort.
Replacement is a larger upfront investment, but it can save you on energy and repairs in the long run. That said, smaller issues may only require affordable AC repair to keep your system running smoothly. If you're nodding along to any of these, a new system will likely save you money and headaches in the long run.
Upgrading your air conditioner isn't just about cooling your home—it's about improving your quality of life. A modern system can:
Upgrading to a modern AC unit improves comfort, reduces energy bills, and increases home value. A skilled Richardson HVAC contractor will make sure your new system is properly sized and installed for maximum efficiency. Our goal is to make sure you feel the difference immediately after installation.
Even the best AC unit won't perform well if installed incorrectly. Our team follows manufacturer guidelines and industry best practices to ensure your system is set up for maximum efficiency and longevity. We care for every detail, from proper refrigerant levels to secure duct connections so that you can enjoy worry-free comfort for years.
We believe a great AC replacement is about more than the equipment—the experience. Our customers know us for:
When you choose us, you choose a partner invested in your long-term comfort.
A: Most replacements are completed within one day. We'll give you a clear schedule before starting, so you know exactly what to expect.
A: Yes—new systems are designed for efficiency. Many of our customers see noticeable savings in their first month.
A: Absolutely. We evaluate your home's square footage, insulation, and layout to recommend an appropriately sized system that maximizes efficiency and comfort
A well-maintained AC system doesn’t have to work as hard to cool your home. Clean coils, proper airflow, and correctly calibrated components help reduce energy consumption.
Benefits include:
Competitor resources consistently note that neglected systems without proper AC maintenance often lose efficiency long before they fail completely.
Many AC failures don’t happen suddenly—they develop over time. Maintenance allows technicians to identify worn parts, loose connections, or airflow problems before they cause system shutdowns.
Preventive maintenance helps:
Air conditioners are major investments. Regular maintenance helps protect that investment by reducing wear and tear on critical components.
Routine service can:
In many cases, maintenance can add years to the usable life of an AC system.
Maintenance isn’t just about the equipment—it’s about how your home feels. A tuned system delivers better airflow and more consistent temperatures.
Homeowners often notice:
For homes with airflow challenges, duct-related services may also help.
During maintenance, filters and internal components are checked for dust and buildup that can affect air quality.
Regular service supports:
This is especially important for households with allergies or respiratory sensitivities.
Skipping maintenance doesn’t usually cause immediate failure—but it often leads to gradual performance decline and higher costs over time.
Common consequences include:
Many emergency service calls we receive in Plano could have been prevented with routine maintenance.
Most manufacturers and HVAC professionals recommend professional AC maintenance at least once per year—ideally before peak cooling season.
Some situations may justify additional maintenance:
Our team can help determine the right schedule for your specific system.
Understanding the distinction helps homeowners plan effectively.
AC Maintenance:
AC Repair:
Maintenance reduces the likelihood of needing repairs, but repairs may still be necessary as systems age.
Even if your system is still running, these signs suggest maintenance is overdue:
If these symptoms sound familiar, scheduling maintenance now can help restore performance.
Yes. Annual maintenance helps keep your system efficient, reliable, and operating within manufacturer guidelines, especially in Plano’s demanding climate.
Maintenance can’t prevent all repairs, but it significantly reduces the risk of major breakdowns by catching small issues early.
A clean, well-adjusted system operates more efficiently, which often results in lower energy usage and reduced utility costs.
Over time, neglected systems lose efficiency, require more repairs, and tend to fail earlier than well-maintained units.
Basic tasks like filter changes are helpful, but professional maintenance includes inspections and adjustments that homeowners can’t safely or effectively perform on their own.
We approach maintenance as more than a checklist. Our technicians focus on system health, performance, and long-term reliability—while clearly explaining what we find and why it matters.
When you choose DT Air Conditioning & Heating, you get:
We’re committed to helping homeowners stay comfortable and avoid unnecessary surprises.