Basement Waterproofing
Freeport, NY
Family-owned since 2000. Serving Freeport and all of Town of Freeport. Free estimates, 24/7 emergency service.
Why Freeport Basements Flood
Freeport is one of Diamond's core service areas — and one of Long Island's most flood-prone villages. Surrounded by water on multiple sides, Freeport basements are under constant hydrostatic pressure.
Diamond Masonry holds a Town of Freeport contractor license (#19283) specifically because so much of our work is done here. We know the soil, the drainage patterns, and the specific challenges Freeport homes face better than any other contractor.
GET FREE ASSESSMENTWARNING SIGNS IN YOUR FREEPORT HOME
- ⚠Water on basement floor after rain
- ⚠Damp or wet foundation walls
- ⚠White mineral deposits on walls
- ⚠Musty smell or visible mold
- ⚠Cracks in foundation walls or floor
- ⚠Sump pump running constantly
Seeing any of these? Call now — free assessment:
📞 CALL 516-920-2543Waterproofing & Masonry Services
Every service below is available to Freeport homeowners. Free estimate on every job.
French Drain Systems
Redirects groundwater away before it can flood your basement. One of our most common solutions in Freeport given the area's water table conditions.
Learn MoreSump Pump Installation
We install submersible pumps with battery backup — critical for Freeport homeowners who need protection when Long Island storms knock out power.
Learn MoreFoundation Crack Repair
High-performance epoxy and polyurethane injection seals cracks permanently. Most repairs done from inside — no excavation needed.
Learn MoreExterior Membranes
90-mil membrane applied directly to your foundation walls — stops water at the source before it ever contacts your home.
Learn MoreInterior Drainage Systems
Perimeter drainage channels capture water and route it to a sump basin. Fast installation with no disruption to your yard or landscaping.
Learn MoreMasonry & Concrete
Pavers, stoops, retaining walls, concrete, and more. The same family that fixes your basement can transform your outdoor space.
Learn MoreWhat Town of Freeport Homeowners Say
"My basement would flood during heavy rains and my husband and I would have a lot of anxiety. Diamond's professionalism made us feel comfortable and the french drain system they installed is the best investment — not having to worry about our basement flooding again."
Ready for a Dry Basement in Freeport?
Free estimate. No pressure. We've been serving Town of Freeport since 2000.