Service Area › Westchester County
Duct Leakage Testing in New Castle, NY
Fast scheduling · Signed report on-site · Contractor pricing
Serving New Castle HVAC Contractors
New Castle encompasses Chappaqua and Millwood — an affluent northern Westchester town with large, complex homes where multi-zone HVAC installations are common and duct testing is routine.
New Castle is centered around the hamlet of Chappaqua, a commuter community along the Harlem Line with large homes on wooded lots. The town has seen significant renovation and expansion activity, with homeowners upgrading aging single-zone systems to modern multi-zone configurations. Millwood, on the town's western edge, has a mix of older homes and newer subdivisions. Contractors working in New Castle frequently encounter homes that have been expanded multiple times, resulting in complex duct routing that makes proper sealing — and testing — especially important.
Westchester Duct Testing provides residential duct leakage testing for HVAC contractors throughout Westchester County. 25–30 minutes from our Harrison office. We show up, run the test, and hand you the signed report before we leave.
New Castle at a Glance
- Population
- 18,300
- Municipality type
- Town of New Castle
- ZIP codes served
- 10514, 10546
- Typical housing
- Mix of 1950s–1970s colonials and large custom homes on wooded lots
Local Building Department
Town of New Castle Building Department
Phone: (914) 238-4723
Duct leakage test report required before CO issuance; thorough inspection process for complex HVAC systems.
Common Projects in New Castle
- ✓Multi-zone HVAC installation
- ✓Full duct system replacement
- ✓Ductwork modification for additions
- ✓New construction duct installation
Code Requirements
The 2025 ECCCNYS requires duct leakage testing for all residential duct installations, including retrofits (R503.1.2). Maximum allowable leakage: ≤ 4 CFM per 100 sq ftof conditioned floor area at 25 Pa (≤ 3 CFM/100 sf at rough-in without AHU). Full test process details →
Schedule a Test in New Castle
Call to schedule or submit the form online.
We Also Serve Nearby Communities
Duct testing in New Castle?
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