Frequently Asked Questions

A seasonal tune-up includes testing system performance, cleaning coils, checking airflow, inspecting safety controls, and verifying refrigerant levels. At Seals Heating and Cooling, we provide spring AC tune-ups and fall heating tune-ups with published pricing to help Davidson homeowners maintain efficiency and prevent breakdowns during peak seasons.

Load calculations determine the correct system size based on your home's square footage, insulation, windows, and local climate. Proper sizing prevents short-cycling, improves comfort control, and reduces energy waste. At Seals Heating and Cooling, we perform load calculations on every replacement to ensure optimal performance in Davidson's humid summers and variable winters.

Humidity promotes mold, dust accumulation, and allergen buildup inside ductwork, reducing indoor air quality and system efficiency. Regular cleaning improves airflow and creates a cleaner environment. At Seals Heating and Cooling, we use Rotobrush equipment to brush, vacuum, and fog ducts, addressing Davidson's seasonal pollen and moisture challenges.

Dryer vents should be cleaned annually, especially in humid climates where lint buildup accelerates and long vent runs are common. Regular cleaning prevents fire hazards, reduces drying time, and improves energy efficiency. At Seals Heating and Cooling, we use Rotobrush VentVac equipment to safely remove all lint and inspect airflow in Davidson-area homes.

High outdoor temperatures force AC units to run continuously, stressing aging components like capacitors, contactors, and compressors. Dirty coils and low refrigerant worsen the problem. In Carolina summers, Davidson homes experience urgent failures that require fast diagnostics and repair to restore cooling and prevent further damage.

Smart thermostats learn your schedule, adjust temperatures automatically, and allow remote control to minimize runtime when you're away. They optimize heating and cooling cycles for better efficiency. At Seals Heating and Cooling, we install and configure smart controls compatible with heat pumps and hybrid systems common around Lake Norman subdivisions.

Skipping seasonal tune-ups is the most common mistake, leading to reduced efficiency, higher bills, and unexpected breakdowns. Proactive care extends equipment lifespan and catches small issues early. At Seals Heating and Cooling, we recommend spring and fall tune-ups for Davidson homeowners to stay ahead of Carolina's demanding climate.

Yes, filtration upgrades, UV purifiers, and humidity control reduce pollen, mold spores, and airborne allergens circulating through your HVAC system. These solutions are especially helpful in high-pollen areas. At Seals Heating and Cooling, we assess homes in the Lake Norman area and recommend IAQ systems tailored to seasonal allergen levels.

Most residential HVAC systems last 12 to 15 years with regular maintenance, though Carolina's humid climate and heavy summer use can shorten lifespan. Proper sizing, quality installation, and seasonal tune-ups maximize longevity. At Seals Heating and Cooling, we help Davidson homeowners plan replacements before major failures occur.

Check your thermostat settings, replace the air filter, and ensure outdoor units aren't blocked by debris or ice. If the problem persists, refrigerant leaks or compressor issues may require professional repair. At Seals Heating and Cooling, we offer same-day emergency service in Davidson with an $80 diagnostic to quickly identify and fix heating failures.

Yes, old or improperly sized ductwork reduces airflow, wastes energy, and prevents new systems from reaching peak performance. Evaluating ducts ensures proper distribution and comfort control. At Seals Heating and Cooling, we inspect ductwork during every replacement consultation for older Davidson homes and fast-growing Lake Norman neighborhoods.

Maintenance is proactive seasonal service that prevents breakdowns through cleaning, testing, and adjustments. Emergency repair responds to sudden failures requiring urgent diagnostics and parts replacement. At Seals Heating and Cooling, we provide both services in Davidson with no extra charge for weekend or after-hours emergency calls.