Licensed & Insured Independent Pros
Every call goes to an independent contractor who carries liability insurance and holds licensing where your jurisdiction requires it. Ask to see both before any concrete is cut.
Damp walls, a wet floor joint or water every time it rains? One call connects you with an independent, licensed and insured basement waterproofing contractor in New London who can find the real cause and fix it for good.

A wet basement is rarely one problem. It's usually a few small ones stacked together. Short downspouts dump roof water right at the foundation. The soil that was backfilled against the wall when the house was built settles and starts to slope inward. Then a long rain saturates that loose fill, and hydrostatic pressure drives water through the weakest point, which is almost always the cove joint where the wall meets the slab.
That's why spot-fixing one crack often moves the leak three feet down the wall. Real basement waterproofing looks at the whole picture: how water reaches the foundation, how it gets through, and where it can be safely collected and pumped away. The contractors we connect you with in New London start with that full picture before recommending anything.
The goal isn't just a dry floor next week. It's a basement you can finish, store things in and stop worrying about every time the forecast calls for rain.

The biggest decision in basement waterproofing is where to stop the water. Exterior work keeps water off the wall entirely. It means excavating to the footing, applying a membrane and installing a new footing drain, and it's the most thorough option. It's also the most disruptive, since decks, patios, landscaping and sometimes driveways sit right where the trench needs to go.
Interior drainage accepts that water will reach the foundation and gives it a controlled path out. For the majority of existing homes, interior drainage hits the best balance of cost and results. It relieves hydrostatic pressure at the footing, where most seepage starts, and it can be installed in any season without tearing up the yard.
A hybrid plan isn't unusual. A contractor might excavate one badly leaking wall under a downspout-heavy corner and run interior drain tile along the other three. Others start with grading and gutter fixes, then monitor through a full season before committing to a bigger system. Foundation type, soil, how you'll use the basement and budget all shape the plan.
Ask for a simple drawing showing the drain tile route, sump location and discharge path. A clear plan is the easiest way to compare quotes fairly.

You need a contractor who thinks in systems, not patches.
Every call goes to an independent contractor who carries liability insurance and holds licensing where your jurisdiction requires it. Ask to see both before any concrete is cut.
Quotes are written per linear foot of drain tile, per pump and per membrane, so you can see exactly what you're paying for. No open-ended hourly billing.
Contractors who work in New London can usually inspect within a day or two, and same day when water is actively coming in.
Pin and pinless moisture meters, thermal imaging cameras, concrete saws with dust shrouds and hammer drills for weep holes. The right gear makes for a cleaner, faster install.
The right combination depends on your foundation type, your soil and where the water enters.

A channel is cut along the slab edge, perforated pipe is bedded in clean stone beside the footing, and the slab is re-poured. Water now drains to a sump instead of spreading across the floor.
A lidded sump basin, a submersible pump sized to your inflow, a check valve and a discharge line routed well away from the foundation, plus a battery backup for outages.
Dimple membrane on the wall directs seepage into the drain channel and keeps moisture away from future studs, insulation and drywall.
In block foundations, water collects inside the hollow cores. Weep holes drilled at the base let it drain into the drain tile instead of pushing through the face of the wall.
Downspout extensions, regraded soil and working window well drains reduce how much water ever reaches the wall, which takes pressure off every other part of the system.
Even a dry basement can feel damp. An energy-efficient, ducted or drain-to-pump dehumidifier keeps relative humidity around 50 percent, which stops mildew and protects stored items.
The biggest cost driver is how many linear feet of drain tile the basement needs. A system along one leaking wall costs far less than a full perimeter. After that, the price moves with the foundation type, since block walls need weep holes and poured walls don't, and with how much is in the way. Finished walls, built-in shelving, stairs and mechanical equipment along the perimeter all add labor.
The sump setup is the next big piece. A basic pump in a new basin is one price, a pump plus battery backup is another, and a duplex system with an alarm is another again. Wall membranes, dehumidifiers and exterior grading work are usually separate line items, so you can pick what you actually need. Permits, where your local building department requires them, are typically included in the quote, but it's worth confirming. A contractor working in New London can walk through each line item with you and explain which pieces are essential and which can wait.
Here's what to expect after you pick up the phone.
Call +1-866-476-1348 and describe where the water shows up and when. We'll ask if the space is finished and whether you have a sump pump.
You'll hear from a nearby contractor quickly to set an inspection, with same-day visits for active water.
Expect a full inside-and-outside inspection, moisture readings and a written quote broken down by system component.
Once approved, the system is installed, debris is hauled off and you get a walkthrough of the pump, the cleanouts and the warranty terms.
One call connects you with an independent local pro who'll find the cause and quote the fix upfront.
Call +1-866-476-1348Two rounds of crack patching failed. The contractor found the water was coming in at the floor joint, installed a drain system and sump, and we haven't had a puddle since.
Keisha D., New London
What impressed me was that he checked the gutters and grading first. The final job was smaller than the other quotes because he actually found the cause.
Tom R., New London
We wanted to finish the basement but didn't trust it. They put in a membrane on the walls and drain tile around the edge. The remodeler said it was a textbook install.
Laura M., New London
Called on a Sunday expecting voicemail. A real person answered and a contractor came out Monday morning with a moisture meter and a written quote by lunch.
Ben A., New London
A typical interior system takes one to three days. Exterior excavation jobs usually run longer because of digging, membrane cure time and backfill.
Coatings can help with minor dampness from condensation or light wicking, but they won't stop water under real hydrostatic pressure. If water pools on the floor after rain, you need drainage, not paint.
You'll need to clear roughly three feet along any wall getting drain tile or membrane. The contractor will tell you exactly which walls during the inspection.
There's some dust from slab cutting, but dust shrouds, sheeting and cleanup keep it manageable. Most homeowners stay in the house during the job.
A dry basement with a transferable written warranty tends to reassure buyers and inspectors. It also makes the space usable, which matters more than any appraisal line.
Test the pump twice a year, keep the discharge line clear and replace the backup battery as recommended. Ask the contractor whether they offer an annual inspection.
Calls from every part of New London and nearby towns are routed to local independent contractors. That includes older homes with block foundations, newer poured-wall builds and finished basements.
Check the zip codes and nearby cities below, or just call. Coverage often reaches further than the list.
