Service Area › Westchester County
Duct Leakage Testing in Lewisboro, NY
Fast scheduling · Signed report same day · Contractor pricing
Serving Lewisboro HVAC Contractors
Lewisboro encompasses South Salem, Vista, and Goldens Bridge — a largely rural, low-density town in northeastern Westchester where HVAC retrofits often involve extensive new duct runs in larger older homes.
Lewisboro's three hamlets — South Salem, Vista, and Goldens Bridge — are spread across a large, wooded landscape in northeastern Westchester near the Connecticut border. The town's rural character means properties are widely spaced with long driveways, and homes tend to be larger with extensive duct systems. Many properties around the Cross River and Waccabuc reservoirs have been significantly expanded over the decades, resulting in complex multi-zone HVAC configurations. The town building department is small but consistent in enforcing energy code requirements.
Westchester Duct Testing provides residential duct leakage testing for HVAC contractors throughout Westchester County. 35–45 minutes from our Harrison office. We show up, run the test, and hand you the signed report the same day.
Lewisboro at a Glance
- Population
- 12,800
- Municipality type
- Town of Lewisboro
- ZIP codes served
- 10590, 10519, 10560
- Typical housing
- Mix of 1960s–1980s raised ranches and colonials with rural estates
Local Building Department
Town of Lewisboro Building Department
Phone: (914) 763-3511
Permits required for all duct installations; test report required at final inspection.
Common Projects in Lewisboro
- ✓Full duct system replacement
- ✓Multi-zone HVAC installation
- ✓Ductwork modification for additions
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 air handler). Full test process details →
Schedule a Test in Lewisboro
Call to schedule or submit the form online.