Basement Waterproofing in South Carolina, SC: Proven Systems. Permanent Results. No Callbacks.
From basement flooding to foundation seepage, Arrow Tight Waterproofing has protected properties statewide with industrial-grade waterproofing systems. Crews are standing by 24/7 across South Carolina, SC.
24/7 Emergency Calls Answered Across South Carolina, SC
Who We Are
The Basement Waterproofing Team That South Carolina, SC Property Owners Rely On
Arrow Tight Waterproofing was built by tradespeople who got tired of seeing homeowners across South Carolina, SC sold band-aid fixes. We specialize in permanent waterproofing solutions — interior drainage systems, exterior membrane applications, crack injection, and crawl space encapsulation — using commercial-grade materials that hold up decade after decade.
We're not a general contractor who does waterproofing on the side. Every job we take in South Carolina, SC — whether it's a sump system installation, a foundation crack repair, or a full exterior waterproofing scope — is handled by specialists. No subcontracting, no handoffs, no surprises on the invoice.
✓ IICRC-Certified Waterproofing Technicians
✓ Commercial-grade materials on every residential job
✓ Permit-ready crews with full insurance documentation
✓ Transferable written warranty on all installed systems
Don't Wait — These Signs Mean Water Is Already Winning
Water damage rarely announces itself dramatically at first. It starts quiet — a damp smell, a hairline crack, white powder on the concrete. By the time it's obvious, you've lost weeks of containment. Here's what to catch early at any property throughout South Carolina, SC.
1
Efflorescence on Block or Poured Walls
White powder on concrete means water has been migrating through your wall. The mineral deposits are left behind when water evaporates after passing through the block or poured wall.
2
Horizontal or Stair-Step Foundation Cracks
Horizontal cracks mean the soil outside is pushing inward against your foundation wall. This indicates active soil movement and warrants evaluation immediately.
3
Musty Odor After Rain Events
Mold and mildew require only 24–48 hours of elevated moisture to colonize. A musty smell after rain means your vapor barrier has failed or doesn't exist.
4
Visible Seepage at Wall-Floor Joint
Water at the wall-floor joint indicates that groundwater pressure is pushing beneath your slab. This entry point worsens with every wet season if not addressed.
5
Peeling Paint or Bubbling Drywall
Paint and drywall absorb moisture vapor before you can see liquid water. Bubbling or peeling in a below-grade space is almost always a moisture problem, not a paint adhesion failure.
6
Sump Pump Running Constantly
Constant sump cycling means your drainage system is overwhelmed. This typically signals that your waterproofing perimeter needs an upgrade, not just the pump.
7
Rust Stains on Concrete or Block
Rust streaks on foundation walls mean moisture is reaching and oxidizing the rebar or metal lath inside your block or poured concrete — water that deep is already compromising structural integrity.
8
Cracks in the Floor Slab
Floor slab cracks that show moisture after heavy rain are almost always driven by sub-slab water pressure — typically requiring sub-slab drainage and sump installation to relieve the pressure permanently.
What We Do
Our Full Range of Basement Waterproofing Solutions in South Carolina, SC
Arrow Tight Waterproofing doesn't sell one-size-fits-all packages. We diagnose the entry point, the pressure source, and the existing drainage condition — then we build the solution around what your specific property needs, anywhere in South Carolina, SC.
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Sub-Slab Interior Drainage Installation
Interior drain tile systems collect groundwater at the footing level before it enters your living space. We saw-cut the slab perimeter, excavate to the footing, install gravel-bed perforated pipe, and tie it into a sump system with battery backup.
These systems redirect hydrostatic pressure along an engineered path straight to your sump pit and out of your property through a properly graded discharge line.
Full exterior waterproofing involves exposing your foundation to the footer depth, applying a crystalline or elastomeric waterproofing membrane, installing a geocomposite drainage mat, and placing exterior drain tile at the footing — the same specification used in new commercial construction.
We use commercial-grade membrane systems — not the paint-on damp-proofing that deteriorates within a few years.
We inject poured-wall cracks using a port-and-backer system: surface ports are installed at 8–12 inch intervals along the crack, the surface is sealed, and two-part polyurethane or epoxy is pumped under pressure from the lowest port up — filling the crack through its full depth.
For concrete block foundation walls showing horizontal cracking or inward bowing, we pair crack repair with carbon fiber reinforcement straps anchored at the floor and rim joist.
Crawl Space Moisture Control: Encapsulation to Full Waterproofing
Crawl spaces are the most overlooked moisture source in residential structures. An unencapsulated crawl space — even one that never floods — pumps humid air into your living area through the stack effect, raising indoor humidity, feeding mold growth in floor joists, and accelerating wood rot in your subfloor structure.
Encapsulation turns your crawl space from an uncontrolled dirt floor into a semi-conditioned space.
Primary & Backup Sump Pump Systems for South Carolina, SC Properties
A sump pump is only as reliable as its installation and backup plan. We install primary pumps — typically 1/2 to 3/4 HP cast iron submersibles with a minimum 10-year rating — alongside battery-operated backup systems that activate automatically when your primary pump fails or power goes out.
Sump pump replacement is one of the most time-sensitive repairs in waterproofing — a failed pump during a heavy rain event means an immediate flood.
Window Well Drainage & Egress Window Waterproofing
Basement window wells are one of the most underestimated water entry points in residential waterproofing. When the well drain becomes clogged or the well itself is sized incorrectly for your roof drainage load, water pools against the window frame and enters through the sill or the adjacent block wall.
Egress window installations create a significant opening in your foundation wall, and sealing the rough opening properly is as important as the window itself.
What Makes Arrow Tight Waterproofing the Waterproofing Contractor South Carolina, SC Trusts
There are waterproofing companies throughout South Carolina, SC. Here's what separates the ones who fix the problem from the ones who fix the symptom — and why Arrow Tight Waterproofing consistently lands on the right side of that line.
01
Inspection-First, Proposal-Second
Our process starts with a thermal imaging scan and moisture meter readings at the wall surface, floor, and any visible crack or staining.
02
We Use the Same Products as Commercial Contractors
The waterproofing membrane we apply to your foundation is the same specification used on commercial buildings — a 60-mil rubber barrier.
03
Fully Licensed Waterproofing Contractor Serving South Carolina, SC
Arrow Tight Waterproofing holds active contractor's licensing and carries $2M general liability plus workers' compensation on every crew member.
04
Upfront Flat-Rate Pricing — No Surprise Invoices
Our proposals are itemized: materials, labor, drainage footage, discharge line run, and any accessory items listed separately.
05
Transferable Lifetime Warranty on Installed Systems
We put our warranty in writing, registered to your property address, with a clear scope of what's covered and the process for filing a service claim.
06
24/7 Emergency Response Across South Carolina, SC
Our emergency dispatch protocol means a technician assesses the situation within 60 minutes of your call in most of our South Carolina, SC service territory.
What to Expect When You Call Arrow Tight Waterproofing
1
Call or Request Online
Reach our live dispatch team at any hour. We'll take your address, ask about what you're seeing, and schedule a free on-site inspection — typically within 24 hours or same-day for emergencies across South Carolina, SC.
2
On-Site Moisture Assessment
Your technician inspects the perimeter, scans the walls with thermal imaging, measures moisture content at every crack and stain, and maps the likely water path from grade to interior. This takes 45–90 minutes and is completely free.
3
Receive Your Written, Itemized Proposal
The proposal covers every item: materials, drainage footage, labor, discharge routing, and any permit fee. The number on the proposal is the number on the invoice.
4
Your System Is Installed, Tested, and Guaranteed
{Our crew completes the installation to the approved scope. On completion, we conduct a post-installation moisture check, walk you through the system, and provide the written warranty documents registered to your property address.|Installation is completed by our direct-employee crew. We clean up the jobsite, verify pump function and discharge routing, take post-install moisture readings, and hand you the warranty documentation before we leave.}
Water Problems Don't Fix Themselves. We Do.
If you've noticed any of the warning signs above, the damage is compounding with every wet event. A free inspection costs you nothing; a delayed repair can cost thousands more.
What Property Owners Across South Carolina, SC Say About Arrow Tight Waterproofing
★★★★★
"The crew showed up within 3 hours of my call at 9 PM. I had water coming in through a crack in my poured wall at the floor joint — had been watching it for two seasons and finally called when it started spreading. They installed an interior drain system along two walls and a new sump pit. The work took two days. Three major rain events since then — completely dry. Worth every dollar.That kind of result speaks for itself."
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Michael R.Homeowner in South Carolina, SC
★★★★★
"I've had two other companies look at my foundation crack before these guys. Both gave me vague proposals and neither one could tell me exactly where the water was coming in. Arrow Tight Waterproofing came out, brought a thermal camera, and showed me on screen exactly where the moisture was concentrated. The polyurethane injection they did has held for 18 months with zero seepage.Highly recommend the whole crew."
S
Sandra T.Property Owner
★★★★★
"I bought a house in South Carolina, SC knowing it had a moisture issue in the crawl space — previous owners had put down a thin plastic sheet that was doing nothing. Arrow Tight Waterproofing encapsulated the entire crawl space with a 20-mil liner, sealed the vents, and installed a dehumidifier. Within two weeks my downstairs floors stopped feeling cold and damp and the musty smell completely disappeared.Highly recommend the whole crew."
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David K.Crawl Space Encapsulation Client
★★★★★
"We had a window well that flooded every time we got more than an inch of rain. The fix was a regraded well with a perforated pipe tied into our existing interior drain. The whole job took one day. The crew was professional, cleaned up completely, and the well has handled every storm since without an issue.Highly recommend the whole crew."
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Lisa M.Window Well Drainage Client in South Carolina, SC
★★★★★
"Called Arrow Tight Waterproofing after my sump pump failed during a storm and I had 4 inches of water on my basement floor. They answered at midnight, arrived within an hour, and had a temporary pump running within 20 minutes. That was 8 months ago — I've had 6 rain events including one significant storm and the basement has stayed dry.Highly recommend the whole crew."
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James W.Homeowner
★★★★★
"As a property manager overseeing several buildings in South Carolina, SC, I've worked with a lot of waterproofing contractors. Arrow Tight Waterproofing is the first that showed up to the initial walk with a written inspection checklist and completed it on-site before quoting. Their exterior membrane on the building we had done 3 years ago is holding perfectly with zero callbacks.Highly recommend the whole crew."
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Angela F.Multi-Property Client
Common Questions
What Property Owners Ask About Waterproofing in South Carolina, SC
Interior drainage systems manage water entering at the cove joint and lower wall — effective for hydrostatic pressure situations, less expensive than excavation.
Crack injection: half to a full day. Interior perimeter drain system: 1–3 days for most residential basements.
A professionally waterproofed basement with a transferable warranty is a selling feature. It eliminates a mandatory disclosure item, removes a negotiation point for buyers, and makes finished basement space more credibly usable in appraisals.
Homeowner's policies typically cover sudden water damage but exclude gradual seepage and groundwater intrusion. We document every job with moisture readings for insurance purposes.
Costs vary significantly based on the solution required, perimeter footage, and existing drainage conditions. Interior drain tile systems for a standard residential basement typically run $4,000–$12,000.
Damp-proofing is the asphalt coating sprayed on new foundations during construction. It's not rated for hydrostatic head pressure and typically fails within 10–20 years.
For interior work, displacement is rarely required. There will be concrete saw noise during the initial saw-cut phase — we use HEPA-equipped dust containment — but most homeowners remain in the house throughout an interior drainage installation.
Poured concrete cracks primarily from shrinkage during initial cure, differential settlement, and thermal cycling. Concrete block cracks most commonly at mortar joints due to differential settlement or from lateral soil pressure.
Interior systems: fully year-round. Exterior excavation and membrane work requires temperatures above 40°F and a dry wall surface — typically scheduled spring through fall, with allowances for mild winter periods.
For interior drainage systems: test your sump pump semi-annually, inspect the discharge line for blockage annually, and keep the pit clear. For crawl space encapsulation: check the liner for tears or water pooling once a year, confirm the dehumidifier drain is clear.
Yes — an unencapsulated crawl space with no standing water still pushes humid ground-sourced air into your living area through the stack effect. That moisture elevates indoor relative humidity, accelerates wood rot and fungal growth in floor joists, reduces HVAC efficiency.
Service Area
Basement Waterproofing Services Across All of South Carolina, SC — We Come to You
Arrow Tight Waterproofing provides Basement Waterproofing services across the full extent of South Carolina, SC. Whether you're in a densely populated metro area or a rural property dozens of miles from the nearest hardware store, our crews are dispatched from regional staging points to keep response times short and service costs predictable.
Our statewide team handles everything from single-family residential basements to commercial foundations. If you're in South Carolina, SC and have a water intrusion problem, we service your area. Call +1-866-476-1348 to confirm availability — it's almost certainly covered.
Basement WaterproofingFoundation Crack RepairCrawl Space EncapsulationSump Pump SystemsExterior WaterproofingWindow Well DrainageEmergency ResponseCommercial Properties
