Managing home comfort can raise plenty of questions, especially when systems make strange sounds or energy bills unexpectedly jump. To help you keep your heating and air conditioning running smoothly, our certified technicians at Nugent Mechanical Contractors have answered some of the most common questions homeowners ask.

Q1: How often should I replace my HVAC air filter?

A: As a general rule, standard 1-inch pleated filters should be replaced every 30 to 60 days. However, if you have pets, allergies, or live in windy, dusty environments like West Texas, you may need to check and replace your filter every 30 days. Clean filters protect indoor air quality and prevent restricted airflow, which can overheat your furnace or freeze your AC evaporator coils.

Q2: How often does my heating and cooling system need maintenance?

A: We recommend professional preventative maintenance twice a year:

  • Spring: Tune up your air conditioning system before summer heat hits.

  • Fall: Inspect and service your furnace or heat pump before cold weather sets in.

Regular tune-ups catch minor wear and tear early, boost energy efficiency, lower monthly operating costs, and help extend system service life.

Q3: Why is my AC unit running, but my house isn’t getting cold?

A: This common issue can stem from several factors, including:

  • A dirty, clogged air filter restricting airflow.

  • Low refrigerant levels due to a system leak.

  • A dirty outdoor condenser coil unable to release heat.

  • Thermostat misconfigurations or failing blower components.

If changing your air filter doesn’t resolve the issue, turn the system off and schedule a diagnostic repair visit to prevent further component damage.

Q4: Should I repair or replace my aging HVAC system?

A: Consider the 50% Rule: If your system is over 10 to 15 years old and the cost of necessary repairs approaches 50% of the cost of a new system, replacement is usually the smarter long-term financial choice. Modern systems offer higher AFUE and SEER2 efficiency ratings, delivering lower monthly utility bills and greater peace of mind.

Q5: What can I do to lower my monthly heating and cooling bills?

A: Easy steps include:

  • Installing a programmable or smart thermostat to adjust temperatures automatically when you are away.

  • Keeping up with routine seasonal maintenance tune-ups.

  • Sealing gaps around windows and doors to keep outdoor air out.

  • Ensuring air vents and return grilles remain unobstructed by furniture or drapes.

Have More Questions About Your Home’s Comfort?

Whether you need routine tune-ups, emergency 24/7 repairs, or guidance on system upgrades, the expert team at Nugent Mechanical Contractors is here to help.