
Furnaces are designed to last for many years, but like any major appliance, they can run into problems from time to time. When your furnace isn’t functioning as it should, it’s important to address the issue right away to avoid further damage and potential safety hazards. Here are some common signs that your furnace may need repair:
When you notice any of these signs, it's important to call a professional furnace repair technician from DT Air Conditioning & Heating right away. We specialize in diagnosing and fixing furnace problems efficiently, ensuring your system runs smoothly and keeps you warm all winter long.
In Richardson, TX, where winters can be chilly, furnace maintenance is essential. Ideally, you should have your furnace serviced once a year, preferably before the colder months begin. A preseason inspection allows your furnace to be ready for the demands of the heating season and helps catch any potential problems before they become serious.
Scheduling regular furnace maintenance annually is usually sufficient, but if your system is older or has had issues in the past, you may want to consider more frequent inspections. During a maintenance visit, we check for things like gas leaks, wear and tear on parts, airflow issues, and carbon monoxide levels to ensure your furnace runs smoothly and safely.


At DT Air Conditioning & Heating, we’re proud to serve the Richardson, TX area and surrounding communities. Richardson is known for its vibrant neighborhoods, beautiful parks, and thriving businesses. Whether you live near the historic Richardson Square or in one of the many newer developments like the Canyon Creek area, we understand the specific heating needs of homeowners in the region.
We’ve been providing top-quality heating and air conditioning services in Richardson for years. Our team of licensed professionals is familiar with the local climate and building standards, ensuring that every furnace we install or repair is perfectly suited to the area. When you choose DT Air Conditioning & Heating, you’re choosing a trusted local company that cares about your comfort.
In addition to repairs, we also specialize in furnace installation. If your current furnace is outdated, inefficient, or beyond repair, we can help you select and install a new, energy-efficient system that suits your home’s needs. We offer a range of high-quality models, ensuring that you find the perfect furnace for your home and budget.
Our installation process is straightforward, and we take care of every detail to ensure that your new furnace operates efficiently and safely. From sizing the system correctly to setting up the thermostat, we’ll handle everything so you can enjoy reliable heat without worry.
Here are some of the most common questions we receive about furnace repair and installation:
When should I replace my furnace? If your furnace is over 15 years old, requires frequent repairs, or is inefficient, it may be time to replace it. Our technicians can help you assess whether repair or replacement is the best option for your situation.
Can I maintain my furnace myself? While you can change the filter and keep the area around the furnace clean, we recommend professional maintenance at least once a year to ensure optimal performance and safety.
How long does a furnace typically last? With proper maintenance, most furnaces last between 15 to 20 years. Older units may need replacement sooner, especially if they are no longer efficient or safe.
What should I do if my furnace stops working? If your furnace isn’t working, check the thermostat settings, change the air filter, and ensure that the system is powered on. If it still doesn’t work, call DT Air Conditioning & Heating for a professional inspection.
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.