Arrow Tight Waterproofing deploys certified waterproofing crews across every region of North Carolina, NC. We diagnose the moisture path, seal it at the source, and back every job with a written guarantee — no vague patches, no callbacks.


Arrow Tight Waterproofing was founded on one principle: a dry basement shouldn't be a luxury. Our certified technicians serve every region of North Carolina, NC with industrial waterproofing systems — the same membranes, drainage matting, and injection resins used in commercial construction, installed at residential pricing.
We're not a general contractor who does waterproofing on the side. Every job we take in North Carolina, NC — 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.
Most basement floods don't start as floods. They start as these ignored details. If you see any of these in your North Carolina, NC property, schedule a free inspection before the damage compounds.
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.
Vertical cracks are often settling. Horizontal cracks in block foundations indicate lateral soil pressure — a structural emergency, not just a cosmetic issue.
If your basement smells earthy or musty after every heavy rain, active water intrusion is feeding organic growth — likely behind the drywall or under the slab.
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.
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.
Constant sump cycling means your drainage system is overwhelmed. This typically signals that your waterproofing perimeter needs an upgrade, not just the pump.
Iron in your concrete doesn't rust unless water penetration has reached it. Rust staining is a reliable indicator that your foundation waterproofing envelope has been breached.
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.
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 North Carolina, NC.
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.
📞 Get a Free Drainage Quote →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.
📞 Schedule an Exterior Assessment →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.
Block wall repointing involves removing deteriorated mortar joints to a minimum depth and repacking with waterproof hydraulic mortar.
📞 Get a Crack Injection Estimate →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.
📞 Schedule a Crawl Space Inspection →The sump pit itself matters as much as the pump. We construct 18-inch diameter pits with a gravel bed at the base, sealed lids to prevent vapor and radon entry, and a discharge line that terminates at a positive-grade daylight point.
For finished basements and properties with high groundwater.
📞 Get a Sump System Quote →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.
Window well covers are a maintenance measure, not a waterproofing solution — but paired with proper drainage installation.
📞 Book a Window Well Assessment →We're not going to tell you we're the cheapest or the biggest. We're going to tell you what we do differently — and why it leads to better outcomes for your property and your wallet long-term.
Our process starts with a thermal imaging scan and moisture meter readings at the wall surface, floor, and any visible crack or staining.
We purchase materials from professional waterproofing suppliers.
Every technician on our crews is a direct employee of Arrow Tight Waterproofing, insured under our policy, and trained to our installation standards.
We quote a fixed scope and a fixed price before any work begins.
Our drainage system installations carry a written warranty against water intrusion through the protected area for the life of the system.
Our emergency dispatch protocol means a technician assesses the situation within 60 minutes of your call in most of our North Carolina, NC service territory.
Call +1-866-476-1348 or fill out our contact form. A live dispatcher answers around the clock and routes a technician based on availability and urgency.
A certified technician visits your property, conducts a full moisture inspection including thermal imaging and meter readings, identifies every active entry point, and documents the drainage pattern. No high-pressure sales tactics — just data.
We present a written, itemized proposal on-site or within 24 hours of the inspection. Fixed price, fixed scope, no open-ended line items. You review it, ask questions, and authorize in writing before any work begins.
{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.}
Our crews are stationed throughout North Carolina, NC and ready to assess your property. Free inspection, written estimate, no obligation. Call now — we answer 24/7.
📞 Get a Free Assessment: +1-866-476-1348"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.Highly recommend the whole crew."
"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.That kind of result speaks for itself."
"I bought a house in North Carolina, NC 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."
"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.That kind of result speaks for itself."
"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."
"As a property manager overseeing several buildings in North Carolina, NC, 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.I'd recommend them to anyone dealing with the same problem."

We've built our service infrastructure across North Carolina, NC around regional crew staging rather than a single central office — which means your technician is driving a short distance to your property, not hours. Coverage includes urban cores, suburban communities, and rural properties throughout North Carolina, NC.
For properties throughout North Carolina, NC, same-day or next-day appointments are typically available. Emergency calls — active flooding, sump pump failure, sudden seepage — receive priority routing and a 60-minute response target in most of our coverage footprint statewide.
📞 Check Availability Across North Carolina, NC: +1-866-476-1348