A Treffeisen & Son — Oneonta NY

Business Overview

A Treffeisen & Son Oneonta NY is a century-old mechanical and electrical contractor serving commercial, industrial, and institutional clients. Founded in 1923, the company operates with about 20 skilled employees and offers design-build services across a roughly 75-mile radius of Oneonta.

The firm handles planned projects and emergency calls. Emergency service is available for urgent plumbing and electrical issues that threaten building operations. While much of the work is commercial and institutional, the team also takes on select residential projects when systems or replacements are needed.

Key Services

Services are focused on plumbing and electrical trades, plus mechanical work like ductwork fabrication. Main offerings include:

• Drain installation and trenching for remodels and new construction
• Electric inspection and system testing for codes and safety
• Plumbing inspection to locate leaks, blockages, and system wear
• Plumbing installation or replacement of piping, fixtures, and water systems

Areas Served

Primary service area includes Oneonta NY and nearby communities. Regular work is performed in:

• Oneonta, NY
• Otsego, NY
• West End, NY
• Kortright, NY
• Burlington, NY

The company also accepts jobs across a wider 75-mile radius for larger design-build projects and municipal bids.

Company History

Started in 1923, A Treffeisen & Son Oneonta NY grew from a local trades shop into a multi-trade contractor. Over generations the business added plumbing, HVAC, and electrical capability and expanded into ductwork fabrication and system renovations.

The firm has completed projects for schools, municipal facilities, and industrial clients. Its long history means experience with older Oneonta homes and institutional buildings that need careful retrofits and code updates, especially in a climate with cold winters and seasonal freeze-thaw cycles.

Leadership

Leadership is local and trade-focused. Managers and senior technicians bring decades of hands-on experience in plumbing, electrical systems, and project coordination. The company keeps ties to community agencies and municipal clients and participates in local projects that affect schools and public buildings.

Specialties & Highlights

• Design-build capability for coordinated mechanical and electrical projects
• Experienced team familiar with institutional and municipal requirements
• Ductwork fabrication and system renovation for older buildings
• Prompt emergency response for systems that impact building use

Why Locals Choose A Treffeisen & Son

Local clients pick A Treffeisen & Son Oneonta NY for steady, experienced work without fuss. The company knows the region’s weather, older housing stock, and institutional needs. Short crews and clear project plans keep downtime low for schools and municipal facilities.

With more than 100 years in the trades, A Treffeisen & Son Oneonta NY presents a practical option for clients who need tradespeople that understand local codes, seasonal wear, and how to coordinate plumbing and electrical systems on complex projects.