New YorkRuns onDUO.
Plumbing, heating and HVAC — engineered to NYC code, delivered with grit and grace across all five boroughs.
Real DUO job sites
Years master-plumber experience
NYC boroughs served
Mechanical disciplines, one contractor
Emergency response
Four disciplines. One contractor.
Most buildings juggle multiple trades and multiple invoices. DUO does plumbing, heating and HVAC under one licensed roof — so the work is coordinated and the accountability never moves.
Commercial-grade work, on every job.
Grit and grace, on every job.
Built from a small venture into a trusted NYC name the way it should be done — through licensed, accountable work and relationships that outlast the invoice.
Licensed & accountable
NYC-licensed master plumber on every job, with documented DPTP and OSHA safety standards.
One mechanical partner
Plumbing, heating and HVAC under one roof — no finger-pointing between trades.
Commercial-grade rigor
Premium materials, code-correct installs and clean documentation, from a closet leak to a full boiler swap.
Built for NYC
We know DOB, FDNY and Con Edison requirements because we work inside them every day.
25+ years
in NYC
Master-plumber leadership servicing New York City since day one.
Who we keep running
Commercial
Offices, retail, hospitality and mixed-use buildings that need uptime, not excuses.
Industrial
Plants and facilities with heavy mechanical loads, process piping and strict compliance.
Residential
Brownstones, condos and homes — the same engineering rigor, human-sized.
Property Management
Portfolios that demand one accountable mechanical partner across every address.
Boilers, pumps, risers, fire protection.
Featured projects
Real DUO job sites across New York City — not stock photos.
What NYC Says
Our customers trust DUO Mechanical for dependable plumbing, heating and HVAC services across New York City.
"Outstanding service from start to finish. The DUO Mechanical team arrived on time, explained everything clearly, and completed the plumbing repair with exceptional professionalism."
Michael R.
Verified Customer
"Highly recommend DUO Mechanical. They installed our HVAC system flawlessly, kept the workspace clean, and delivered exactly what they promised."
Sarah L.
Verified Customer
"Excellent customer service and honest pricing. The technicians were knowledgeable, friendly, and completed the work ahead of schedule."
David P.
Verified Customer
Burst pipe? Dead boiler? We answer.
Let's build something that works.
Tell us about your building and your problem. You'll get a straight answer and a fair estimate — not a runaround.