
Boiler Installation NYC
Commercial and residential boiler installation across NYC — sized, installed and commissioned to code.
Boiler Installation in New York City
A boiler is a decade-plus decision. We size it to the building's real heat loss, install it cleanly, and commission it properly so it runs efficiently from day one — not just until the warranty.
How DUO delivers
Assess
On-site evaluation and an honest diagnosis — no upsell theater.
Engineer
A code-correct plan and a clear, itemized estimate before work starts.
Execute
Licensed install with documented DPTP and OSHA safety standards.
Verify
Testing, sign-off and clean documentation for any inspector.

Real boiler installation work across NYC
Questions, answered
A straightforward residential swap is often a day or two; commercial and cascade systems take longer. We give you a realistic schedule after assessing the existing piping and venting.
Boiler Installation in the field
Real DUO project photography drops in here — replace the marked tiles with your job-site shots.






