Furnace repairs
We investigate no-heat complaints, repeated shutdowns, ignition faults, blower problems and thermostat or control issues. We test the system and explain the findings before recommending component replacement.
NASSAU & SUFFOLK · REPAIR · INSTALLATION · MAINTENANCE
Gas & Oil Furnace Service
A furnace that will not start, blows cool air or heats unevenly needs a clear diagnosis. A1 repairs, maintains and installs gas and oil furnaces throughout Nassau and Suffolk.
EQUIPMENT WE SERVICE
Help for your heating system.
Gas furnacesOil furnacesForced-air heating systemsBlower motors & controlsIgnition & burner componentsThermostats & connected ductwork
What to share when you call.
Share the fuel type, equipment brand, symptoms and any displayed error code. Let us know whether the blower runs and which rooms are affected. A photo of the model label is useful when requesting service online.
Based at 11 Hulse Road in East Setauket, A1 serves residential and commercial properties in Nassau and Suffolk. Share your service address so we can confirm coverage and coordinate the visit.
Heating service questions.
Do you service gas and oil furnaces?
Yes. A1 works on gas and oil forced-air furnaces and services all equipment makes and models.
Is a furnace the same as a boiler?
A furnace heats air that is distributed through ducts. A hot-water boiler heats water circulated to equipment such as baseboards or a hydro-air coil. A1 services both types.
Can you check the furnace and central air together?
Yes. Where the systems share airflow equipment or ductwork, tell us about problems in both heating and cooling modes so we can review the connected system.
Is emergency furnace service available?
A1 provides 24/7 emergency heating service. Call 631-331-2102 for urgent help. Arrival times depend on location, conditions and availability; an online request does not confirm an appointment.