“The team was professional, responsive, and very easy to work with. They arrived on time, explained everything clearly, and completed the work efficiently.”
Michael R.
Customer Testimonial
Licensed NYC Mechanical Contractor
New YorkRuns onDUO.
Plumbing, heating and HVAC — engineered to NYC code, delivered with grit and grace across all five boroughs.
Plumbing /Heating /HVAC /Emergency Repairs /All 5 Boroughs /Plumbing /Heating /HVAC /Emergency Repairs /All 5 Boroughs /
Real DUO job sites
0+
Years master-plumber experience
0
NYC boroughs served
0
Mechanical disciplines, one contractor
0/7
Emergency response
What we do
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.
Built in New York
Commercial-grade work, on every job.
Why DUO
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.
Industries
Who we keep running
01
Commercial
Offices, retail, hospitality and mixed-use buildings that need uptime, not excuses.
02
Industrial
Plants and facilities with heavy mechanical loads, process piping and strict compliance.
03
Residential
Brownstones, condos and homes — the same engineering rigor, human-sized.
04
Property Management
Portfolios that demand one accountable mechanical partner across every address.
The portfolio
Boilers, pumps, risers, fire protection.
Selected work
Featured projects
Real DUO job sites across New York City — not stock photos.
Reputation
What NYC says
See what customers have to say about DUO Mechanical Inc.
“Very happy with the service. The technicians were knowledgeable, respectful of the property, and paid close attention to the details of the job.”
James T.
Customer Testimonial
“Great experience from start to finish. Communication was excellent and the work was completed professionally. I would definitely recommend the team.”
David M.
Customer Testimonial
“Excellent service and very professional crew. They handled the work carefully, kept the area clean, and made sure everything was working properly before they left.”
Robert K.
Customer Testimonial
“The entire process was smooth and straightforward. The team was courteous, knowledgeable, and delivered quality workmanship. Very satisfied with the result.”
Daniel P.
Customer Testimonial
24/7 Emergency
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.