Basement & Crawl Space Waterproofing
Foundation Waterproofing in Suffolk County
We find where water is getting into the foundation and stop it at the source, so the basement stays dry in every season.
- Free Estimates
- One Contractor
- Lindenhurst, NY
- All Suffolk County
Get Your FREE, No‑Obligation Estimate
Tell us about the project and we will get back to you.
- Free Estimates
- One Contractor
- Lindenhurst, NY
- All Suffolk County
Foundation Waterproofing
Keep the Foundation Dry for Good
Water in a basement rarely fixes itself. Damp patches, a musty smell or puddles after rain mean water is getting in, through cracks, the joint between wall and floor, or groundwater pushing on the walls.
The fix depends on the cause, so we find it first. Then we match the work to it: exterior waterproofing at the outside of the walls, interior waterproofing and drainage, French drains, sump pumps and crack repair. Many homes need a mix of these, explained before anything is booked.
What's Included
What the Job Covers
The steps that go into the work, so you know exactly what you are paying for before anything starts.
- An inspection to find where and why water is getting in
- Exterior foundation waterproofing of the outside walls
- Interior basement waterproofing and drainage
- French drains and foundation drainage
- Sump pump installation
- Foundation and basement crack repair
- Crawl space waterproofing and encapsulation
Recent Work
Our Foundation Work
Photos from our own foundation jobs on Long Island, from digging out and waterproofing the walls to new footings.
Water Getting into Your Foundation?
Get a free, no-obligation written estimate anywhere in Suffolk County.
Related Work
You Might Also Need
Work that often goes hand in hand with this job, carried out by the same local team and priced on the same written estimate if you want it.
Why Choose Us
Why Choose Us for Foundation Waterproofing
Water in a basement needs the cause fixed, not the symptom. We find where it is getting into the foundation before we recommend any work.
Cause Found First
We find where and why water gets in before recommending work.
Inside & Out
Walls, floor and the ground outside the foundation all checked.
Every Method
Exterior, interior, drains, sump pumps and crack repair.
Ready to Finish
A dry basement you can then finish into living space.
Tailored Advice
Recommendations based on what we find, not a set package.
How It Works
From First Call to Sign-Off
A typical project runs like this, with the scope and the price agreed in writing before any work starts on your home, so you know exactly what to expect.
Tell Us About the Project
Call us or send the form with a few lines about the work you want done, where you are and when suits you to talk.
We Take a Look
We visit your home, look at the space with you and discuss the options, materials and finishes.
Your Written Estimate
You receive the full scope and the price in writing, with time to consider it before you decide.
Completed as Agreed
We complete the work, then review it with you and confirm everything has been done as agreed.
Common Questions
Foundation Waterproofing Questions
Why is water getting into my basement?
Usually through cracks in the walls or floor, along the joint between the wall and floor, or from groundwater and poor drainage pushing against the outside of the foundation. Finding the cause is the first step, which is why we start with an inspection.
Do I need interior or exterior waterproofing?
It depends on where the water comes from. Exterior waterproofing stops water at the outside of the foundation walls; interior waterproofing collects water that gets in and directs it away. Many homes benefit from both, and we explain which suits yours after the inspection.
Is foundation waterproofing worth it?
For most homes with a damp or leaking basement, yes. It protects the foundation, helps keep mold out of the air and turns a damp space into one you can use.
Will waterproofing fix a mold problem?
Removing the moisture is what stops mold coming back, so waterproofing deals with the cause. Mold already on surfaces still needs cleaning, which we can talk through on the visit.
Can you finish my basement after waterproofing?
Yes. Once the foundation is dry we can remodel the basement into living space as well, with one contractor for both jobs.
What affects the cost of foundation waterproofing?
Where the water is coming from, the length of wall involved, whether the work is inside or outside, and extras such as drains or a sump pump. We give you a written price once we have found the source.
Can't Find the Answer You're Looking For?
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