Manny HVACDutchess & Westchester, NY
Sheet Metal Fabrication

Custom DuctworkDutchess County, NY

Precision-fabricated sheet metal ductwork designed for your home. Better airflow, quieter system, lower energy bills — built to last decades.

Why It Matters

Good ducts make the whole system work

Balanced Airflow

Properly sized ducts eliminate hot and cold spots — every room gets the right amount of air.

Built for Your Home

Every piece is measured and fabricated on-site or in-shop specifically for your home's layout.

Sheet Metal Quality

We use galvanized steel, not flexible plastic. It lasts longer, leaks less, and performs better.

Efficiency Gains

Leaky or undersized ducts waste up to 30% of your HVAC output. New ductwork pays for itself.

What We Do

Every duct job, done right.

  • New ductwork installation for additions and renovations
  • Ductwork replacement for aging or damaged systems
  • Custom fabrication for non-standard layouts
  • Duct sealing and insulation
  • Airflow balancing and testing
  • Supply and return grille sizing
  • Attic and crawlspace duct runs

Properly Designed Ducts

Most HVAC problems aren't caused by the equipment — they're caused by poorly designed ductwork. Undersized returns, leaky connections, and unbalanced airflow can make even a brand-new system perform poorly.

We use Manual D calculations to size every duct run correctly, ensuring your system delivers the right amount of conditioned air to every room.

FAQ

Common questions

How do I know if my ductwork needs replacing?
Common signs include uneven temperatures room to room, excessive dust, unusual noises from vents, or a sudden spike in energy bills. If your ducts are over 15–20 years old, an inspection is worthwhile.
Can you add ductwork to a home that doesn't have it?
Yes. We regularly design and install new duct systems in older homes, additions, and renovations. For homes where running ducts isn't practical, we can also discuss ductless mini-split alternatives.
What material do you use for ductwork?
We fabricate with galvanized sheet metal — the industry standard for longevity and performance. We avoid flex duct for main trunk lines, though it's used appropriately for final connections.
How long does ductwork installation take?
Depends on scope. A single room addition might take one day. A full-home duct system replacement typically takes 2–4 days.
Do I need permits for ductwork?
For new construction and major renovations, permits are usually required. We handle all permitting as part of the job.

Get a free ductwork assessment

We'll inspect your existing system, identify inefficiencies, and give you a clear, upfront quote.

Call (914) 461-7296