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Basement Waterproofing in New London, WI That Actually Stops the Water

We diagnose the actual water source before we quote anything — no guessing, no upsell, just a plan sized to your basement.

Licensed Basement Waterproofing service in New London, WI - SGP Waterproofing
Why Choose Us

Four Reasons Our Basement Waterproofing Clients Don't Call Anyone Else

Basement waterproofing mistakes usually come down to one thing: fixing the symptom instead of the source. A contractor who paints over a wet wall without checking cove joint condition or exterior grading is setting you up for the same call again in a year or two.

1

Licensed & Insured Crews

Every technician carries full state licensing and liability coverage before they ever step into your basement.

2

Same-Day Local Dispatch

Most inspection requests get a same-day or next-day appointment, not a two-week wait.

3

Flat-Rate Pricing, No Surprises

No hourly billing and no change orders once your basement floor is already open.

4

Moisture-Mapping Equipment

Thermal imaging helps us confirm whether a stain is active moisture or an old, already-fixed leak.

Professional Basement Waterproofing technician working in New London, WI
What We Do

What Our Basement Waterproofing Service Actually Covers

We scope every Basement Waterproofing job in person before quoting it, since two properties with the same symptom rarely need the same fix.

Basement

Interior Drain Tile

The core fix for most New London, WI basements: a perimeter drain cut into the slab edge, tied to a sump basin, that intercepts water before it reaches the floor.

Basement

Sump Pump & Basin Installation

Battery backup is available for any sump system, so a power outage during a storm doesn't undo the whole fix.

Basement

Wall Crack & Cove Joint Sealing

Vertical wall cracks get epoxy or polyurethane injection depending on whether they're still actively weeping.

Basement

Vapor Barrier Wall Membrane

A dimpled plastic membrane behind any finished basement wall channels residual moisture down to the drain tile instead of trapping it behind drywall.

Basement

Window Well Drainage

Poor window well drainage is one of the most overlooked New London, WI basement leak sources, and it's often the cheapest fix on the list.

24/7 Emergency Basement Waterproofing experts in New London, WI
How It Works

What Happens After You Call SGP Waterproofing for Basement Waterproofing

01

Call & Symptom Walkthrough

You describe what you're seeing — a wet spot, a musty smell, standing water — and we get a rough read on urgency before dispatching anyone.

02

On-Site Moisture Inspection

A technician walks the basement with a moisture meter, checking walls, floor, and cove joints to trace the water back to its actual source.

03

Written, Itemized Quote

We explain the reasoning behind the recommended system so you know exactly what you're paying for and why.

04

Installation & Warranty Walkthrough

Most residential basement jobs finish in one to three days, and we test the sump pump under load before we leave.

Customer Reviews

Real Basement Waterproofing Reviews From New London, WI Property Owners

Top rated local Basement Waterproofing specialists in New London, WI
★★★★★

"Our finished basement started smelling musty and we finally found a wet spot behind the drywall. They cut open the cove joint, ran drain tile, and it's been dry for over a year."

— New London Homeowner

★★★★★

"Sump basin was undersized from the last owner's DIY job. They resized it and we haven't had a drop since."

— New London Customer

★★★★★

"Appreciated that the estimate matched the final invoice exactly — no surprise add-ons once the floor was already open."

— New London Homeowner

★★★★★

"Basement had been damp for years. Drain tile and a new sump system fixed it in three days."

— New London Customer

FAQ

Frequently Asked Questions About Basement Waterproofing

How much does interior drain tile installation cost?

Cost depends on linear footage, sump basin size, and whether cove joint sealing is included — we won't give a number without an in-person inspection.

Will you cut into my basement floor?

Yes — interior drain tile requires cutting a channel along the slab edge, which we patch with concrete once the system is installed.

How long does basement waterproofing take?

Most residential interior drain tile and sump installations finish in one to three days depending on basement size.

Do I need a sump pump if I'm just sealing a crack?

Not always — an isolated, non-leaking crack can sometimes be handled with injection alone.

Is basement waterproofing covered by insurance?

We provide photos and moisture readings that many New London, WI homeowners have used to support a claim.

Do you offer a warranty on basement waterproofing work?

Yes, every interior drain tile and sump installation comes with a written warranty, explained in full before you approve the quote.

Service Coverage

Basement Waterproofing Coverage Across New London and Surrounding New London, WI Communities

We install interior drain tile and sump systems throughout New London and the surrounding New London, WI service area, including the zip codes listed below.

Reliable Basement Waterproofing contractor in New London, WI by SGP Waterproofing
Affordable Basement Waterproofing solutions in New London, WI
Trusted Basement Waterproofing service in New London, WI - SGP Waterproofing

Zip codes we serve in New London, WI: 54961

Get Basement Waterproofing Handled Before It Gets Worse

Call now for a free inspection and a flat-rate quote before anything gets worse.

Call +1-866-476-1348

Our Services in New London, WI

New London is a city in Outagamie and Waupaca counties Wisconsin, United States. Founded in 1851, the population was 7,295 at the 2010 census. Of this, 5,685 were in Waupaca County, and 1,640 were in Outagamie County.

Zip Codes in New London, WI that we also serve: 54961

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