Service · Connecticut & New York · Since 1994
Basement
Waterproofing.
Interior drainage systems, sump pumps, vapor barriers. Permanent dry basements without the foundation-excavation upsell most contractors will try to sell you. Lifetime warranty in writing, transferable when you sell the home.
Free inspection. Written estimate within 24 hours. Most jobs done from inside – no exterior excavation.
- Lifetime waterproofing warranty
- Transferable on home sale
- Most jobs done in 1–3 days
Three signs you need waterproofing now
If any of these match your basement, we should talk.
Waterproofing is one of those problems that gets exponentially more expensive the longer you wait. These are the three triggers we see most often in CT and NY homes.
Visible water after storms
Puddles on the slab after a heavy rain. Water stains at the wall-floor joint. A finished basement that smells damp 48 hours after a storm. This is hydrostatic pressure pushing groundwater through the path of least resistance.
SCHEDULE A FREE ESTIMATEDamp musty smell year-round
Even when you can’t see water, you can smell it. Mustiness is mold spores feeding on moisture in your basement air. Long-term it damages stored belongings, drywall, and the air quality of the floors above.
SCHEDULE A FREE ESTIMATEEfflorescence on the walls
White, chalky, crystalline residue on your foundation walls. That’s salt left behind as water evaporates through the masonry. It’s not the problem – it’s the symptom that water is actively moving through your foundation.
SCHEDULE A FREE ESTIMATEWhat’s actually going on down there
Why CT and NY basements leak in the first place.
The water in your basement is not random, and it is not your foundation’s fault. It is physics. After every storm, soil around your house saturates and exerts hydrostatic pressure on the foundation wall. That pressure pushes groundwater through the path of least resistance. Hairline cracks in poured concrete. Mortar joints in cinder block. The cove joint where the wall meets the slab. Once water finds an opening, it keeps using it.
Connecticut and lower New York make this worse than most regions. Clay-heavy soil in the Hudson Valley and Litchfield County expands when wet, then contracts when dry, slowly working cracks open. The 42-inch frost line in CT means freeze-thaw cycles in pre-1970 foundations have had decades to do damage. Properties near the Housatonic, Naugatuck, or Connecticut River sit on water tables that rise sharply after spring melt. None of this is unusual. All of it is solvable from the inside.
Walk through a typical job
What a waterproofing install actually looks like.
- 01
Day one morning: arrival and containment
Crew arrives between 7 and 8 a.m. We lay protective film over your floors, build a dust barrier at the basement door, and stage equipment outside. You stay upstairs. Power tools run inside the containment zone only.
- 02
Day one afternoon: perimeter saw-cut
A walk-behind saw cuts a 4 to 6 inch wide channel along the inside perimeter where the wall meets the slab. Dust is collected at the source with HEPA vacuums. By end of day one, the trench is open and ready for drain pipe.
- 03
Day two: drain pipe and sump basin
Perforated PVC is laid in clean stone and pitched toward the sump basin we install in a corner. The basin is plumbed to a primary pump and a battery backup. Discharge line routes outside below CT frost depth so it cannot freeze shut in February.
- 04
Day two or three: vapor barrier and slab restoration
A wall vapor barrier is sealed to the new drain. Fresh concrete is poured over the trench and trowel-finished smooth. We test the system with a hose, walk you through the warranty paperwork, and leave the basement cleaner than we found it.
Why CT and NY homeowners pick Big Easy for waterproofing.
How we actually do it
Interior drainage. Not exterior excavation.
The waterproofing industry has a dirty secret: the most profitable job is also the most invasive one. Excavating your yard, exposing the foundation from outside, applying a membrane, backfilling. $25,000 to $40,000 typical. Disrupts your landscaping for weeks.
The cleaner truth: for the vast majority of CT and NY basements, an interior drainage system solves the same problem – permanently – for a fraction of the cost, with zero impact on your yard. Here is exactly how we do it.
Free inspection
A specialist examines every foundation wall, every existing drain, every moisture sign. We document with photos and measurements. You get a written estimate within 24 hours – no high-pressure follow-up.
Cut perimeter trench
We carefully saw-cut a 4-to-6-inch-wide trench around the interior perimeter where the foundation wall meets the slab – right above the existing footing. Dust controlled at the source. No demolition outside this strip.
Install drain + sump system
Perforated PVC drainpipe laid in clean stone, pitched toward a sump basin we install in the corner. Battery backup pump included as standard. Discharge line routed outside, below CT/NY frost depth so it never freezes shut.
Vapor barrier + restore slab
Wall vapor barrier installed and sealed to the new drain. Concrete poured back over the trench, finished smooth. The basement looks essentially the same as when we arrived – only now it stays dry, with a lifetime warranty in writing.
When exterior excavation IS the right call
We tell you straight: about 10–15% of jobs genuinely need exterior excavation. Severe foundation cracks under hydrostatic load. Failed exterior membrane on a relatively new home. Certain century-old fieldstone foundations. If that’s your situation, we’ll say so on the free inspection. We won’t sell you interior drainage that won’t solve the actual problem – and we won’t sell you exterior excavation that isn’t needed. That’s the difference.
Equipment we trust
Products and systems we install.
We do not invent proprietary names. We install the equipment that working contractors across the Northeast have trusted for 20-plus years, sized correctly for your specific basement.
- Sump pumps: Zoeller M53 or M98 cast-iron primary pumps, depending on basement square footage and water table depth.
- Battery backup: Basepump or Pro Series backup units that kick in within seconds of a power loss. Standard on every install, not an upcharge.
- Drainage pipe: 4-inch perforated PVC bedded in 3/4-inch washed stone, not the corrugated black flex pipe that collapses under slab pressure.
- Vapor barrier: 8-mil reinforced poly wall membrane, mechanically fastened and sealed to the new drain channel.
- Dehumidification (optional): Aprilaire E70 or Santa Fe Ultra units when a sealed-basement humidity control is part of the scope.
Every component is sized for your basement. We do not run a one-size-fits-all package because no two CT or NY foundations are identical.
What you actually get in writing
Warranty and what it covers.
Every interior drainage system we install carries a written lifetime warranty against water entry through the drained perimeter. If water enters the basement through the area we waterproofed, we come back and fix it. No service call fee. No deductible. No fine print that pretends to be coverage and is not.
The warranty is transferable to the next homeowner one time, at no charge, when you sell the property. That clause matters when your real estate attorney requests waterproofing documentation during a closing.
What voids the warranty: cutting into the drain channel without notifying us, blocking the sump discharge line, or modifying the pump system with non-equivalent parts. Pumps themselves carry the manufacturer warranty (typically 3 to 5 years) and we handle the replacement claim on your behalf.
Real waterproofing projects in CT and NY.
Illustrative example · representative of typical basement waterproofing work · not a specific Big Easy customer project[Problem solved in one sentence – e.g. “Recurring storm-driven seepage stopped, basement bone-dry through Hurricane season”]
Illustrative example · representative of typical basement waterproofing work · not a specific Big Easy customer project
Illustrative example · representative of typical basement waterproofing work · not a specific Big Easy customer project[Problem solved in one sentence – e.g. “Pre-listing moisture mitigation completed, inspector signed off in time for closing”]
Illustrative example · representative of typical basement waterproofing work · not a specific Big Easy customer project
Honest pricing
How much does basement waterproofing cost?
Honest range: $3,500 to $12,000 for a typical CT or NY basement. Most jobs land between $5,000 and $8,000. Three factors drive the number.
- Linear feet of perimeter drain. A 1,000 square foot basement has roughly 130 linear feet of perimeter. Full perimeter installs cost more than partial-wall fixes for a single problem corner.
- Sump system complexity. A primary pump plus battery backup is standard in our pricing. A second sump basin for a split-level or addition adds roughly $1,200 to $2,000.
- Slab thickness and access. Older homes with thicker slabs, decorative epoxy floors, or finished basements with framing in the way require additional labor to cut, restore, and reframe.
Every estimate is written, itemized, and emailed within 24 hours of the inspection. No verbal guesses. No bait-and-switch on day one of the job.
CT and NY specifics
CT and NY climate, soil, and housing stock.
Most national waterproofing guides skip the local detail that actually matters. Here is what we deal with every week in this market.
- Frost depth: Connecticut IRC adopts a 42-inch minimum frost depth. Sump discharge lines routed shallower than that freeze in February. We bury ours below 42 inches every time.
- Soil belts: Hudson Valley clay holds water against the foundation. Litchfield County rocky till drains fast on the surface but pools at bedrock seams. Fairfield County coastal sand drains well but rides a high water table near Long Island Sound.
- Housing stock: Pre-1970 Capes and Colonials across CT and NY have block foundations with mortar joints that have absorbed 50-plus winters of freeze-thaw. Interior drainage relieves the pressure without disturbing the wall.
- Floodplain proximity: Homes near the Housatonic, Naugatuck, Quinnipiac, Hudson, or Connecticut River sit on water tables that climb fast after spring melt. Battery backup pumps stop being optional in those neighborhoods.
Where we work
Towns we waterproof basements in.
We serve homeowners in Stamford, Greenwich, Norwalk, Danbury, Hartford, West Hartford, Litchfield, White Plains, Yonkers, Carmel, and Poughkeepsie, plus surrounding towns within a one-hour drive of those hubs.
Coverage spans Fairfield, New Haven, Litchfield, and Hartford counties in Connecticut, plus Westchester, Putnam, and Dutchess counties in New York. If your town borders one of these counties and you’re not sure we cover it, call and ask. We usually do.
Common questions homeowners ask
Frequently asked questions
How long does basement waterproofing take?
Most full-perimeter interior systems are complete in 2 to 3 working days. Smaller corner-only fixes finish in one day. We give you a written timeline before work begins, not a verbal guess.
Will the inside of my basement be torn up?
We saw-cut a 4 to 6 inch channel along the wall-floor joint and pour fresh concrete back over the drain. The rest of the slab stays untouched. Finished basements with framing or flooring along the wall require limited reframing, which we scope in the written estimate.
Is interior drainage as good as exterior excavation?
For the vast majority of CT and NY basements, yes. Both systems relieve hydrostatic pressure. Interior costs roughly one-third of exterior, requires no yard demolition, and carries the same lifetime warranty. Roughly 10 to 15 percent of jobs genuinely need exterior work, and we tell you straight when yours is one of them.
Does waterproofing fix existing mold?
Waterproofing stops the moisture source that feeds mold. Active mold growth on walls or stored belongings still requires remediation. We coordinate both scopes when the inspection shows existing colonies.
Will my homeowner insurance cover this?
Standard policies in CT and NY do not cover gradual seepage or hydrostatic water entry. They typically only cover sudden burst-pipe events. We do not bill insurance directly, and we structure the written estimate so you can submit it for a claim if your policy includes a water damage rider.
Is the warranty really transferable?
Yes. One transfer to the next homeowner at no charge when you sell the property. The transfer is documented in writing and accepted by every real estate closing attorney we have worked with across CT and NY.
Free waterproofing inspection. Written estimate within 24 hours.
Sixty minutes on site. No verbal guesses. No high-pressure follow-up. An honest answer about whether you need interior drainage – or whether your specific situation is one of the rare cases that genuinely needs exterior work.
- Full foundation walk-through
- Photo documentation of every moisture sign
- Written estimate emailed within 24 hours
- Lifetime warranty in writing, transferable on home sale
- Honest answer if exterior excavation is necessary – or isn’t
Book your free inspection
No obligation. Written estimate within 24 hours.
Tell us what is happening with your basement and we will email a written estimate within 24 hours. No cost, no obligation, no high-pressure follow-up.
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