Hollis Basement Waterproofing
Basement Waterproofing in Hollis, Queens
Wet floors, damp walls and leaks after storms traced to their cause and fixed in Hollis basements.
- Find the source of the water
- Drainage, sealing and pump options
- Free written estimate
Local Conditions
Why Do Hollis Basements Get Wet?
Southeast Queens has a known history of street flooding in heavy rain, and groundwater here can sit high. When the soil outside your wall is saturated, water pushes through cracks, joints and the floor edge. Basements in Hollis often seep after long storms even when the street is not flooded.
Most Hollis homes are detached houses with basements under them. Many were built decades ago with little or no waterproofing. Walls of block or old concrete are porous, and the joint where the floor meets the wall is a common leak point.
Surface water makes it worse. A driveway or yard that slopes toward the house sends rainwater to the wall. Clogged gutters and short downspouts dump more of it beside the foundation.
Rain is not the only source. A backed up sewer can bring water through a floor drain. That is a plumbing problem and needs a licensed plumber, often with a backwater valve.
What Are the Ways to Waterproof a Basement?
Each method fits a different entry point. Sealing handles small cracks. Interior drainage with a sump pump handles water that rises from below. Exterior fixes, such as regrading and gutter work, reduce what reaches the wall in the first place. Many jobs combine two or three of these.
Sealing cracks and wall surfaces stops minor seepage. It works best where the leak is local and the water pressure is low. It is not enough on its own where groundwater is high.
Interior drainage collects water at the base of the wall and moves it to a sump pit. A pump then sends it out of the house. This approach copes with the heavy water that high groundwater areas produce.
Should I fix the outside first?
Often yes. Longer downspouts, clean gutters and soil that slopes away from the house can reduce the load and sometimes solve a small leak by themselves.
Water on the floor after the last storm? We can find out where it came from.
Book an Inspection Call NowCost Factors
What Changes the Cost of Waterproofing a Hollis Basement?
Water source
A single crack costs less than water coming in along the whole floor edge.
Wall length
More linear feet of drainage means more labor and material.
Finished space
A basement with finished walls or flooring takes more care and time.
Pump and backup
The number of pumps and any battery backup affect the scope.
You receive the plan and the price in writing, with each method explained.
Request Your QuoteProcess
How Does Basement Waterproofing Proceed?
Inspection
We check walls, floor joints, drains and the grade outside.
Plan and estimate
The written plan names the method for each leak.
Preparation
We protect your belongings and prepare the work zone.
Installation
The crew installs drainage, seals surfaces or sets the pump as planned.
Testing
We check the system and walk you through how to maintain it.
Are Permits Needed to Waterproof a Basement in Hollis?
Interior sealing usually does not involve the city, but plumbing work such as a sewer backflow fix needs a licensed plumber and sometimes a permit. Structural work can involve the Department of Buildings. Hollis has no historic district that we can confirm, though you should check the city rules for your lot.
Where a backwater valve is the answer, we bring in or recommend a licensed plumber rather than doing the work ourselves.
Nearby
Basement Waterproofing Near Hollis
We waterproof basements in neighborhoods around Hollis too.
FAQ
Hollis Basement Questions
Long storms saturate the soil. Once the ground around your house holds water, the pressure pushes it through small cracks and joints.
If groundwater rises under the floor, a pump is usually part of the fix. We explain whether your basement needs one and why.
It reduces water entry significantly in most cases, but no one can promise a perfectly dry basement. We outline expectations in the estimate.
If water rises through a floor drain, it may be a sewer backup. That needs a licensed plumber and often a backwater valve.
Many owners do. Fix the water first, then finish the space with materials that tolerate damp.
Call (718) 468-8803 to schedule a visit. We write the estimate at no charge.
Contact
Request Your Hollis Waterproofing Estimate
Note the spot where water shows up and how often. Add a picture of the damp spot if you have one.
- 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.