Crawl Space & Basement Insulation
Batt insulation, mineral wool and radiant GPS foam board for crawl spaces and basements.
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Basement Waterproofing in Charlotte & Rock Hill
Quick answer
Wetlock Waterproofing helps homeowners manage basement water intrusion through customized interior drainage, sump pump systems, wall moisture protection, and humidity control. Each system is designed around the source of the moisture and the conditions of the foundation.
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- Free Inspections
- Photos of Everything We Find
- Locally Owned in Rock Hill
- Written, Itemized Proposals
Our basement waterproofing services
- Interior drain system installed along the perimeter to catch water before it reaches the floor.
- Wall liner to direct seepage down to the drain and give you clean, bright walls.
- Fungus growth cleaning on walls and surfaces affected by moisture.
- Sump pump, 3/4 HP with an optional battery backup, to move water out of the house.
- AprilAire dehumidifier to control basement humidity and musty air.
- Insulation: batt, mineral wool or radiant GPS foam board for basement walls and ceilings.
- Carbon fiber straps to reinforce cracked or bowing block walls.
How the system works together
- Interior perimeter drain: installed along the edge of the floor where it meets the foundation wall. It collects water that seeps through the wall or the wall-floor joint and carries it to a sump basin.
- Wall liner: covers the inside of the foundation walls so seepage runs down behind it into the drain instead of across the floor.
- Sump pump: pumps the collected water through a discharge line to an outlet away from the foundation. An optional battery backup helps keep it running during power outages.
- Dehumidifier: controls the humidity left in the basement air, which drains and liners do not address.
Together these manage water that reaches the basement. They do not change conditions outside the house, so where roof runoff or grading sends water toward the foundation, exterior drainage may also be recommended.
Where basement water comes from
Not every wet basement has the same cause, and the fix depends on which one it is.
| Source | What you see | What usually addresses it |
|---|---|---|
| Seepage at the wall-floor joint | Water along the base of the walls after heavy rain | Interior drain system and sump pump |
| Foundation cracks | Damp lines or leaks at a crack | Drainage to relieve pressure; reinforcement if the wall is cracking or bowing |
| Condensation | Damp walls and musty air with no visible leak, often in summer | AprilAire dehumidifier |
Basement wall liner
A wall liner is installed over the inside of the foundation walls. Water that seeps through the block runs down behind the liner into the interior drain system instead of across your floor, and the walls are left clean and bright.
Fungus growth cleaning
Where moisture has led to fungus growth on walls or other surfaces, we clean the affected areas as part of the project. Cleaning is paired with fixing the moisture source, so the conditions that caused the growth are addressed too. This is cleaning of visible fungal-like growth, not certified mold remediation.
Carbon fiber wall straps
Wall reinforcement is a structural repair, separate from waterproofing. Carbon fiber straps are bonded to cracked or bowing block walls to reinforce them. Straps are recommended only after we assess the wall, and we tell you plainly if it needs more than straps, including further structural evaluation.
Why waterproofing paint is not enough
Coatings can help with light dampness, but they cannot hold back water under pressure. When the soil is saturated, water builds up hydrostatic pressure and pushes through the wall and the coating peels. Relieving that pressure with a drain system is what keeps a basement dry.
Protect your finished space
Many basements around Charlotte, Fort Mill and Lake Wylie are finished living space. A small leak can ruin carpet, drywall and furniture. A free inspection now can save a full remodel later.
Signs you may need basement waterproofing
- Water on the floor after heavy rain
- Damp or dark spots on walls
- White chalky residue (efflorescence)
- Fungus growth on walls
- Cracked or bowing block walls
- Musty smell in the basement
Basement Waterproofing
Our basement services
Dehumidifiers
AprilAire dehumidifiers that keep crawl space and basement humidity under control year-round.
Learn more
Sump Pumps & Battery Backups
3/4 HP sump pumps for crawl spaces, basements and exterior drains, with battery backups.
Learn moreOur process
How your project works
Free Inspection
We crawl the whole space or walk the full basement, take moisture readings and photograph everything.
Clear Explanation
We show you the photos, explain what is causing the problem and answer every question.
Written Proposal
You get an itemized plan with options and exact pricing. No pressure, no surprise add-ons.
Done Right
Our own crew completes the work, cleans up and walks you through the finished result.
Straight answers
Basement Waterproofing FAQ
Why does my basement leak only after heavy rain?
Clay soil around Carolina homes soaks up rainwater and presses it against foundation walls. That pressure pushes water through cracks and the joint where the wall meets the floor. An interior drain system relieves it.
What are carbon fiber wall straps?
Carbon fiber straps are bonded to cracked or bowing block walls to reinforce them. During the inspection we tell you plainly if a wall needs more than straps.
Can I finish my basement after waterproofing?
Yes, and it is the right order. Waterproofing first protects drywall, flooring and furniture.
Where we work
Basement Waterproofing near you
Based in Rock Hill, SC, serving the Charlotte and Columbia regions. Our primary markets:
Ready for a drier home?
Get a free basement waterproofing inspection with photos and a written plan.