A & S Nathan Heating & Cooling LLC

A & S Nathan Heating & Cooling LLC has earned a 4.8-star rating across 541 customer reviews in Ansonia, Connecticut, establishing itself as a trusted name in residential heating and cooling since its founding. The company maintains round-the-clock availability, meaning homeowners can reach them any day of the week for emergencies, a practical reality for systems that fail at the worst possible moment. Serving Ansonia and the surrounding Naugatuck Valley region, the team handles everything from aging oil furnace replacements to complete natural gas conversions, addressing the diverse needs of older Connecticut homes and newer construction alike.

What distinguishes A & S Nathan from smaller operations is their ability to manage full-system conversions that involve multiple disciplines, gas line installation, high-efficiency furnace setup, central air conditioning, and on-demand water heaters all in one project. Customer reviews note their competitive pricing and the confidence with which their team recommending the right system for each home's layout and usage patterns. The office staff, specifically mentioned by name in reviews, keeps clients informed throughout the process and treats homeowners as valued customers rather than one-time calls. Their methodical approach means projects stay on schedule and the worksite remains clean throughout.

The customer stories speak directly to the company's capabilities. For Mark Pastor's household, technicians converted an entire home from oil to natural gas, installing furnace, central air, and an on-demand water heater while maintaining a clean yard and organized worksite. Victoria R's 70-year-old oil furnace was completely removed and replaced with a modern system that finally delivered reliable heat. Christian Grohe called on Dave and Von to investigate an odor around his fireplace, receiving thorough explanations and adjustments that improved heating across his second floor. Each review names specific team members who arrived when promised and explained options clearly.