Service Area › Westchester County
Duct Leakage Testing in North Castle, NY
Fast scheduling · Signed report on-site · Contractor pricing
Serving North Castle HVAC Contractors
North Castle includes Armonk and North White Plains — a growing residential market in central Westchester where new construction and major renovations drive steady duct testing demand.
North Castle straddles the I-684 corridor between White Plains and Bedford, with the hamlet of Armonk as its commercial center. The town has seen significant new luxury home construction in recent years, particularly in developments off Bedford Road and around Wampus Lake. North White Plains, at the town's southern edge, has denser mid-century housing. IBM's historic presence in Armonk attracted executive housing development in the 1970s–1990s, and these homes are now reaching the age where full HVAC system replacement is common.
Westchester Duct Testing provides residential duct leakage testing for HVAC contractors throughout Westchester County. 15–20 minutes from our Harrison office. We show up, run the test, and hand you the signed report before we leave.
North Castle at a Glance
- Population
- 12,600
- Municipality type
- Town of North Castle
- ZIP codes served
- 10504, 10605
- Typical housing
- Mix of 1960s–1980s colonials and newer luxury construction
Local Building Department
Town of North Castle Building Department
Phone: (914) 273-3542
Building department requires test report submission before CO issuance; active enforcement on new construction and renovations.
Common Projects in North Castle
- ✓Multi-zone HVAC installation
- ✓New construction duct installation
- ✓Full duct system replacement
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 North Castle
Call to schedule or submit the form online.
We Also Serve Nearby Communities
Duct testing in North Castle?
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