Long Island City Basement Waterproofing
Basement Waterproofing in Long Island City, Queens
Wet cellars and damp walls near the East River and Newtown Creek are a familiar problem. We find where the water enters and stop it.
- Leak source traced first
- Interior drainage and wall sealing
- Free written estimate
Why Do Basements Get Wet in Long Island City?
Many Long Island City basements sit near the waterline of the East River and Newtown Creek. Groundwater is high, older walls are porous, and storm water can overwhelm drains. Low lying waterfront areas flooded during Hurricane Sandy, and some buildings still deal with seepage.
The neighborhood has brick and brownstone row houses in Hunters Point, loft conversions, industrial buildings and many newer towers. Row houses and older buildings usually have cellars with stone or brick walls that let moisture through.
- Damp or weeping stone and brick walls
- Water at the joint between wall and floor
- White mineral deposits on the walls
- Peeling paint and musty smells
- Standing water after heavy rain
- Cracks that leak in wet weather
Newer towers have their own issues, such as garage levels and mechanical rooms, but those usually belong to a building manager and an engineer. Our work centers on row houses, small commercial buildings and older conversions.
A sewer backup is different from seepage. That job belongs to a licensed plumber, who can add a backwater valve. If the water smells like sewage or rises from a floor drain, call a plumber first.
Water in Your Cellar After Every Storm?
We will trace the source and write down the fix before you spend a dollar.
How We Fix It
How Do You Keep a Cellar Dry Near the Waterfront?
The plan starts outside, with gutters, downspouts and grade, and moves inside to sealing and drainage. Interior drains collect water at the wall and floor edge and send it to a sump, where a pump lifts it out. Cracks are sealed and walls are coated as needed.
For old stone and brick walls, we often repoint failing joints and parge the surface before applying a coating. That slows water at the wall.
Where groundwater is high, drainage and a pump do most of the work. We size the system to the space and explain how to maintain it.
We also check the sidewalk side of the building. Areaway drains, coal chutes and old vault openings under the sidewalk can take in surface water, and sealing them often cuts the water that reaches the cellar wall. Ask us to look at them on the same visit.
Access matters in row houses. Narrow stairs and low ceilings shape how we bring in tools and haul out debris. We plan for it before work begins.
What Rules and Permits Apply to Waterproofing Work?
Interior waterproofing is often a private repair, but structural cracks, wall repairs and any digging can involve Department of Buildings permits and a licensed engineer. Work at the street, such as areaways, may need other approvals. Confirm current rules with the city.
If your row house sits in the Hunters Point Historic District, changes visible from the street can need Landmarks approval. Interior work does not, but areaway and sidewalk side changes might.
Do I need a backwater valve?
If water comes back through a drain, a licensed plumber can install a backwater valve. We do not install them, and we tell you when that is the right route.
Does sidewalk work come up?
Sometimes. Digging next to the sidewalk can damage flags, and sidewalk work generally needs a DOT permit. We plan for that and repair the sidewalk when needed.
Why Us
Why Choose Us for Waterproofing in Long Island City?
Source first
We trace where the water enters before we propose a fix.
Old walls understood
Stone and brick cellars need different methods from new concrete.
Written estimate
Each part of the plan is listed so you can compare it.
Nearby
Basement Waterproofing Near Long Island City
Cellar waterproofing is also available in the areas around Long Island City.
FAQ
Long Island City Waterproofing Questions
Yes. We repoint, parge, seal and add drainage depending on how the wall behaves.
If water rises from a drain or smells like sewage, call a licensed plumber. Seepage through walls and floor is our work.
If water collects at the floor edge, a sump gives it somewhere to go. We explain whether your space needs one.
We promise no outcome we cannot control. We explain what the plan manages and what it does not.
We do. Call (718) 468-8803 and ask about a Long Island City cellar visit.
Free on site estimate
Dry Out Your Long Island City Cellar
A visit, a traced source and a written plan.
Contact
Book Your Long Island City Basement Inspection
Tell us where water appears and how often. Photos of walls and floors help.
- Call us(718) 468-8803
- HoursMon to Sat, 9:00 AM to 6:00 PM
- Free on site estimate with a written price
- Licensed and insured, 25+ years in business
- We handle DOT sidewalk permits
- Serving Manhattan, Brooklyn, Queens and the Bronx
Get Your Free Estimate
Takes about a minute. No cost and no obligation.