An interior drainage system intercepts groundwater below your slab before it reaches the visible floor surface, with no excavation and no disrupted landscaping — work done entirely from inside.
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What "specialized" actually means for interior drainage system at our company — not a marketing word, a set of specific practices.
Correct slope calculation determines whether water actually flows to the sump or just sits.
Crews carry core-cutting equipment and basic drain tile stock, so assessment and installation often start the same visit.
No hourly billing — if scope changes once the slab is opened, we discuss it before proceeding.
Slab coring is done in a narrow channel along the interior perimeter, with debris containment to keep dust and mess controlled.
We don't run a one-size-fits-all playbook — every interior drainage system job starts from these core service components, adapted to what your property actually needs.
The channel is sloped precisely toward the discharge point so water flows by gravity rather than pooling within the drain tile itself. New concrete is poured back over the channel, restoring a finished, level floor.
Where full slab coring isn't practical, a baseboard-mounted channel system captures water at the wall-floor joint and routes it to a discharge point.
We calculate expected inflow volume based on perimeter length and water table before recommending pump horsepower.
Interior systems address this joint directly, capturing water at the source rather than letting it spread across the floor.
Collected water needs to exit the sump basin and property entirely — we route discharge well clear of the foundation with a check valve to prevent backflow.
Here's the exact path from your call to a completed interior drainage install.
A few quick questions about your basement's finished status help us plan any protective containment needed.
Most New Holstein, WI assessments are scheduled within a day or two given the priority nature of active seepage.
Pricing is itemized per linear foot for drain tile plus sump basin and pump costs, in writing before coring begins.
We schedule a follow-up check after the next significant rain to confirm performance.
Real feedback from New Holstein-area customers who called us for interior drainage system.
"No more water creeping across the floor every time it rains hard. Drain tile handles it now before it ever reaches the surface."
"Appreciated that they explained the slope calculation — made clear this wasn't just a drain thrown in randomly."
"Floor patch after the coring work is seamless, you'd never know they'd opened up the slab."
"Whole install was done in about a day and a half with minimal mess given they were cutting into concrete."
High-intent questions we hear most often about interior drainage system in New Holstein, WI.
Arrow Tight Waterproofing provides interior drainage system throughout New Holstein, WI, dispatching from regional staging points to keep arrival times short across our full coverage footprint.
Interior drainage coverage tends to be broad since it doesn't require excavation crews, but confirming by phone is still the fastest route.
Notice: Arrow Tight Waterproofing is a free referral service designed to assist homeowners and businesses in connecting with independent local contractors. All contractors and service technicians are independent and Arrow Tight Waterproofing does not warrant or guarantee any work performed. It is the responsibility of the customer to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All calls are routed to independent local service providers.
