Local Experts Who Keep the Valley Warm

When winter hits hard and your heating system goes out, you want a local team that knows your town and responds fast. That’s why A&S Nathan Heating and Cooling LLC, headquartered right here in Ansonia, CT, is the first call for homeowners needing heating repair they can trust. Our family-owned company has been serving the Valley since 2000, combining quick response times with skilled, lasting repairs for furnaces, boilers, and heat pumps of all brands and fuel types.

We Fix Every Type of Heating System

Our licensed technicians handle all system types and brands, including:

Gas & Oil Furnaces – Ignition issues, motor failures, or poor airflow corrected efficiently.
Steam & Hot-Water Boilers – Pressure loss, leaks, or inconsistent heating solved fast.
Propane Heating Systems – Venting and combustion adjustments for safe operation.
Heat Pumps & Hybrids – Defrost, refrigerant, and electrical problems diagnosed accurately.
Ductless Mini-Splits – Zoning and sensor repairs for reliable comfort in every room.

We carry most replacement parts on-hand to complete repairs the same day.

Common Heating Problems in Ansonia Homes

No heat or blowing cold air
System cycling on and off
Uneven heat between rooms
Strange noises or smells
High utility bills without more use

EvWe provide honest evaluations and up-front pricing before work begins.

Valley-Based, Community-Focused Service

From homes along Main Street to neighborhoods near the Ansonia Nature Center, our technicians are your neighbors. We proudly serve Ansonia, Derby, Seymour, and Shelton, offering 24/7 emergency heating repair to keep families safe and warm through Connecticut winters.