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Since 1925, Kapnag Heating & Plumbing Corp. has provided the highest quality heating and plumbing services and solutions to residential and commercial clients in New York City.
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With our team of experienced mechanics and attentive full-time office personnel, led by our licensed and hands-on owner, we pride ourselves on honest interactions with clients, and integrity throughout the Kapnag organization.

We provide inspection, installation, repair and modification services to building sprinkler, standpipe and combination fire suppression systems. Our services include, but are not limited to: weekly/monthly/annual/5-year testing and inspections, sprinkler head modification and relocation, riser installation, leak detection/repairs and Siamese connection installation/repairs.

New York City is home to some of the oldest and most sophisticated one and two pipe steam heating systems in the country. At Kapnag Heating & Plumbing Corp. we diagnose steam heating issues, install and repair radiators, replace steam traps and valves, install steam regulating valves, rid apartments of constant “banging” and work with Con Edison to shutdown and repair