FAQs

If your furnace or heat pump is blowing cold air, making unusual noises, short cycling (turning on and off frequently), or causing a sudden spike in your energy bill, it’s likely time for a repair. You might also notice weak airflow, inconsistent room temperatures, or strange smells. Our licensed technicians at Mountain House Mechanical are trained to quickly diagnose and repair all types of heating systems—whether it's a traditional gas furnace or a modern heat pump.

Yes! As a matter of fact we are the experts. We utilize an ACCA-accredited Manual J software to assess your home’s size, building characteristics, insulation, and energy needs to recommend the most efficient and cost-effective heating system for your comfort and budget. No guessing or using "rules of thumb". We determine the exact btu requirements of your home, guaranteeing proper performance and longevity of your new heating and/or air conditioning equipment. Ask our competitors if they have completed a Manual J load calculation to properly size your equipment, the replies will likely both surprise and concern you.

Unusual noises like banging, rattling, or squealing can signal a loose part, worn component, or airflow issue. If your HVAC unit is louder than normal, it’s best to schedule a professional inspection before it leads to bigger, more expensive problems.

Uneven cooling could be caused by a dirty filter, duct issues, low refrigerant, or poor insulation. Our AC specialists will find the source and fix it so your home stays consistently comfortable.

If your AC is over 10–15 years old, needs frequent repairs, or your energy bills keep rising, replacement is likely the better option. New AC systems are more energy-efficient and reliable.

A heat pump is an all electric heating and cooling solution that moves heat from one place to another. As opposed to a furnace that is actually generating heat through the process of combustion. When a heat pump is operating in cooling, heat from inside the home is absorbed by the refrigerant in the evaporator and discharged to the outside air using the outdoor condenser. During heating, heat from the outdoor air is absorbed by the condenser then discharged into the home through the evaporator. Heat pumps are an energy-efficient alternative to separate furnace and AC units and can help lower your energy bills year-round.

If your unit is over 10–15 years old, frequently needs repairs, or struggles to keep your home comfortable, it might be time to replace it. Newer systems are more energy-efficient and reliable, helping you save money long-term.

A ductless (or ventless) system uses wall-mounted units to heat and cool individual rooms without traditional ductwork. It’s perfect for older homes, room additions, or any space that needs targeted temperature control. Added benefits of ductless systems include the ability to have separately controlled zones, which means you don’t have to heat or cool the entire house, just the areas that are occupied, resulting in significant savings on your utility bill. In addition, the absence of ductwork through unconditioned crawl spaces and attics means increased efficiency due to the elimination of any air leakage and heat transfer that occurs outside the living area of the home.

Yes, like all HVAC systems, ductless mini-splits require regular maintenance. Clean indoor filters regularly and schedule professional service once a year to keep them running efficiently.

We recommend having your HVAC system professionally serviced at least once a year—ideally in the spring for cooling and fall for heating. Regular maintenance helps prevent breakdowns, boosts energy efficiency, and extends your system’s lifespan.