Mahopac Falls, the hamlet beside Mahopac
Mahopac Falls is a hamlet in the southwestern part of the Town of Carmel, the same town as Mahopac, with its own post office and the ZIP code 10542. It is centered on Hill Street, which is County Road 32, and Route 6N. The Mahopac Middle and High School campus sits between the two hamlets.
Because it shares a town with Mahopac, the building department, the town flood law and the hazard plan that apply to your house are the same ones that apply to ours. Emergency dispatch is available around the clock for every address in the hamlet, including the roads off Hill Street and Route 6N.
Hill Street, Route 6N and the Red Mills area
The Putnam County hazard mitigation plan lists Hill Street at Route 6 among the flood-prone spots in the Town of Carmel. That intersection sits on the corridor that connects Mahopac Falls to Mahopac, so a road that floods there affects the route in and out. When a storm closes it, water in nearby cellars and yards is usually part of the same event.
The hamlet is also home to Red Mills, the site of a Revolutionary-era grain mill with a small park on the old mill ground. It is a reminder that this community grew up around moving water. Older properties near streams and former mill races deal with groundwater that newer subdivisions on higher ground do not.
Water problems that start in Mahopac Falls homes
Cellars and lower levels
Groundwater and storm runoff reach finished basements. Pumping, drying and replacing wet materials is covered in basement water damage cleanup.
Supply line failures
Aging copper, galvanized remnants and old valves can fail in winter or from pressure. See burst pipe water damage.
Storm runoff and culverts
Hurricane Sandy blew out culverts in the Town of Carmel, and the July 2023 storms damaged culverts countywide. See storm water damage cleanup.
Roof and ceiling leaks
Wooded lots drop debris into valleys and gutters. See ceiling water damage repair.
If water is still spreading in Mahopac Falls
Work through these in order while the crew is on the way. Stop at any step that is not safe.
Close the main
Turn the main shutoff clockwise. If the valve is stuck, call and we will help you decide the next step.
Power down wet rooms
Switch off breakers only if the panel is dry and you can reach it without stepping in water.
Lift what you can
Move rugs, electronics and papers up and out. Leave heavy furniture alone.
Keep clear of dirty water
Stay out of water that came from a drain or a flooded yard, and keep children and pets away.
Call the 24/7 line
Tell us where the water entered, how deep it is and whether it is still rising.
Permits, utilities and neighboring ZIPs
Repairs that involve permits in Mahopac Falls go through the Town of Carmel building department. The town adopted its Flood Damage Prevention Law on January 9, 2013, and ask them how it applies if your house is in a mapped flood zone.
Two nearby places have their own ZIP codes and sit across the line in Westchester County. Shenorock is 10587 and Granite Springs is 10527. Both are in a different county, so permits there go through Westchester town authorities rather than Carmel. The Town of Somers hazard plan lists the Shenorock Dam, a town-owned dam, among its monitored structures. We serve all three ZIP codes.
Water in your Mahopac Falls home
Call the 24/7 line and tell us the street and the source.
Mahopac Falls on the map
The map is centered on the Mahopac Falls hamlet so you can confirm we cover your street. Our base is on Route 6 in Mahopac, a short ride east along the Route 6N and Hill Street corridor.
Mahopac Falls water damage questions
Yes. The line is answered around the clock every day of the year. Tell us the street, how deep the water is and what the source is, and we will tell you what to do while the crew is organized.
We serve the hamlet's own ZIP, 10542, which covers the Hill Street and Route 6N area and the roads around Red Mills. We also serve the neighboring Westchester ZIPs 10587 for Shenorock and 10527 for Granite Springs.
The Town of Carmel building department. If your house is in a mapped flood zone, ask them how the town's Flood Damage Prevention Law applies.
Not always, but they are related. Road flooding means the drainage in the area is overwhelmed, and basements nearby often take water as well. A sump pump with a battery backup is worth discussing with a plumber.
Often, if the water was clean and caught early. Moisture readings decide. See our hardwood and carpet pages for the details.