FAQs

D & D Heating & Air Conditioning Inc

  • How often should I schedule maintenance for my heating and/or cooling system?

    We recommend scheduling preventative maintenance at least once annually, ideally before the summer or winter seasons begin. Regular tune-ups and maintenance help ensure your HVAC system operates efficiently and extends its lifespan. According to Today's Homeowner, the best practice is to have your HVAC system inspected twice each year.
  • What signs show that my HVAC system might need repairing?

    Common warning signs that your residential HVAC system needs servicing include unusual sounds, uneven temperatures in different areas of your home, higher than normal energy bills, and unfamiliar odors. If you notice any of these issues, it's important to contact a licensed HVAC technician for an inspection.
  • Should I replace my existing HVAC system or try to repair it?

    This decision depends on several factors, including your unit's age, frequency of use, and maintenance history. We recommend having a reputable, licensed HVAC company inspect your system and discuss your options. As a general guideline, HVAC systems that are more than 15 years old and require frequent repairs should typically be replaced.
  • How can I improve the efficiency of my HVAC system?

    You can enhance your HVAC system's efficiency through regular maintenance, changing air filters on schedule, and ensuring furniture and other items don't block your vents so air can flow freely throughout your home.
  • Why is my furnace blowing cold air?

    A furnace that's set to a warm temperature should never blow cold air, and this likely indicates a problem. Potential causes include thermostat malfunctions, low fuel levels, an extinguished pilot light, or a blocked filter. If you've checked these items and the issue persists, it's best to call for professional HVAC repair.
  • What causes my furnace to make loud noises?

    Furnaces should operate relatively quietly. If yours is making loud noises, we recommend contacting an HVAC company for cleaning and maintenance. Common causes include dirty burners, loose components in the blower, or worn bearings.
  • How can I improve the heating performance of my system?

    You can enhance your system's heating performance by sealing any air leaks in your ductwork, ensuring all vents remain unobstructed, keeping windows locked during heating season, and using a programmable thermostat to optimize efficiency.
  • Why isn't my air conditioner cooling my home to the temperature it's set at?

    This could indicate low refrigerant levels, dirty coils on the unit, a blocked condensate drain, or problems with your thermostat. If you've checked these potential issues and the problem persists, it's best to contact a licensed HVAC company for a thorough inspection.
  • How often should I change my air conditioner filter?

    Most air conditioning filters should be changed every 1 to 3 months. The exact frequency depends on factors like whether you have pets and how frequently you use your unit.
  • What should I do to prepare for my service appointment?

    To help your appointment run smoothly, please clear the space around your heating or cooling equipment so our technicians can easily access it. Secure any pets in another room, and inform us about any specific concerns or problems you've observed with your system. If you have maintenance records or warranty documentation available, it's helpful to have those ready for reference.
  • Do you offer any guarantees or warranties for your work?

    Yes, we stand behind the quality of our work with warranties on labor and parts. The specific terms depend on the type of service performed and the equipment installed. Our team will provide you with detailed warranty information for your particular service or installation, and we're always available to answer questions about coverage.
  • What products and services do you offer?

    We provide comprehensive heating and cooling solutions for residential and commercial properties throughout Central Massachusetts. Our services include installation, repair, and maintenance of furnaces, air conditioners, heat pumps, and ductless systems. We also offer indoor air quality solutions, emergency repairs, seasonal tune-ups, and energy efficiency consultations to keep your home or business comfortable year-round.