Basement water in Hawthorne
Hawthorne is a hamlet in the Town of Mount Pleasant near the geographic center of Westchester, bounded by Route 9A on the west and the Taconic State Parkway on the east, and split by the Sprain Brook Parkway. It was once called Hammond's Mills and later Unionville, and the Saw Mill River runs through the area.
Homes near the Saw Mill River valley deal with higher groundwater, while houses on the surrounding hills take runoff. An F2 tornado touched down here in July 2006 before moving into Valhalla, a reminder that storm season brings wind as well as water.

The contractor who follows up will look at the basement and walk the property, paying attention to slope, downspouts, window wells and any low spots. Then they give you a written proposal. In this part of Westchester, common fixes include French drains and curtain drains, sump pumps with battery backups and outside work like rerouting downspouts and regrading.
Help them help you: note which walls get wet and how soon after rain, take photos when it happens, and check that gutters are clear. If your house sits on a slope, mention it, along with any stone or block foundation. Walk the yard in a heavy rain if you can do it safely and watch where the water runs, because that is often the best clue to where it ends up.
Ask any contractor working in Hawthorne for a Westchester County home improvement license number, proof of insurance, a written warranty and a clear plan for where drained water will go. Leave electrical work for pumps to licensed trades.
Nearby areas we also cover: Pleasantville, Thornwood, Valhalla, Elmsford.
Waterproofing requests we take in Hawthorne
- Basement waterproofing in Hawthorne
- French drains and curtain drains in Hawthorne
- Sump pumps and battery backups in Hawthorne
- Exterior waterproofing in Hawthorne
- Foundation crack repair in Hawthorne
- Encapsulation and vapor barriers in Hawthorne
- Yard drainage and window wells in Hawthorne
Questions homeowners ask
What does basement waterproofing cost in Hawthorne?
This Old House puts interior waterproofing at about $3,000 on average and exterior work at roughly $7,000 or more. Slopes, rock and long walls raise the price, so get written estimates.
Who will inspect my basement in Hawthorne?
A local waterproofing contractor who works in Hawthorne and the surrounding area. They contact you and give you their own price.
Is a sump pump enough?
A pump only removes water that reaches the pit. Without a drain to collect water along the walls, or outside fixes to reduce the water, a pump alone may not keep the basement dry.
Should I start with gutters and grading?
Yes. Clearing gutters, extending downspouts and making sure soil slopes away cost little and can solve runoff problems on their own.