Frequently Asked Questions

  • Which areas does Hyson Mechanical serve in New Hampshire?

    We serve Sandown, Windham, Londonderry, Atkinson, Manchester, Derry, Pelham, Auburn, Bedford, Chester, Danville, Deerfield, East Kingston, Epping, Goffstown, Hampstead, Kingston, Merrimack, Nottingham, Raymond, and surrounding Rockingham County areas.

  • What AC brands do you install and service?

    We install and service top-quality brands including Concord, Carrier, and Fujitsu units. These brands are known for reliable performance, energy efficiency, and manufacturer support, ensuring your cooling system operates dependably for years.

  • How do you determine the right AC size for my home?

    We perform precise load calculations based on your home's square footage, insulation quality, window placement, and typical heat load. Proper sizing prevents short-cycling from oversized units or constant running from undersized systems.

  • Do you provide emergency AC repair services?

    Yes, we offer 24/7 emergency AC repair throughout our service areas. Our technicians arrive with diagnostic tools and common replacement parts to restore cooling quickly when your system fails during hot weather.

  • What's included in AC maintenance services?

    Our AC maintenance includes system inspections, filter changes, coil cleaning, refrigerant level checks, electrical connection testing, and airflow verification. Regular maintenance prevents breakdowns and maintains peak efficiency throughout cooling season.

  • Can mini-split systems cool and heat my home year-round?

    Yes, ductless mini-split systems provide both heating and cooling through inverter technology. Modern cold-climate models work efficiently in New Hampshire winters while offering zoned temperature control and improved air quality.

  • What causes most AC breakdowns during summer?

    Common causes include refrigerant leaks, compressor failures, electrical malfunctions, frozen evaporator coils, and failed capacitors. Regular maintenance identifies these issues early, preventing unexpected breakdowns during peak cooling demand.

  • How far from Sandown will you travel for service?

    We serve throughout Rockingham County and surrounding areas including Manchester, Derry, Salem, and communities within our established service radius. Contact us to confirm availability in your specific location.

  • When should I replace my AC unit instead of repairing it?

    Consider replacement if your unit is over 15 years old, needs frequent repairs, struggles to cool effectively, or has rising energy bills. We evaluate repair costs versus long-term savings to help you make informed decisions.

  • Do you install central air in homes without existing ductwork?

    Yes, we provide both ducted central air installations and ductless mini-split systems. Mini-splits are ideal for homes without existing ductwork, offering efficient cooling with wall-mounted indoor units and outdoor condensers.