Water doesn't wait for business hours, and neither do we. Arrow Tight Waterproofing brings licensed Waterproofing expertise to Gasport, NY with same-day dispatch and upfront flat-rate pricing.


We've spent years responding to flooded basements and seeping foundations across Gasport, NY. What we learned is simple: most water intrusion problems trace back to three root causes β hydrostatic pressure, improper grading, and compromised foundation walls. We fix all three, not just the symptom you can see.
We're not a general contractor who does waterproofing on the side. Every job we take β whether it's a sump system installation, a foundation crack repair, or full exterior waterproofing β is handled by specialists. No subcontracting, no handoffs, no surprises on the invoice.
Water damage rarely announces itself dramatically at first. It starts quiet β a damp smell, a hairline crack, a white powder on the concrete. By the time it's obvious, you've lost weeks of containment. Here's what to catch early.
That white chalky residue isn't cosmetic β it's mineral salt deposited by water that has already penetrated your foundation wall.
Horizontal cracks mean the soil outside is pushing inward against your foundation wall. This indicates active soil movement and needs evaluation immediately.
If your basement smells earthy or musty after every heavy rain, active water intrusion is feeding organic growth β 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 at the source.
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.
A sump pump that cycles every few minutes β or runs non-stop β is managing a groundwater situation your current system wasn't designed for. It will burn out, and the next flood won't wait for a replacement.
Rust streaks on foundation walls mean moisture is reaching and oxidizing the rebar or metal lath inside your block or poured concrete β water that deep is already compromising structural integrity.
Hairline slab cracks that weep during wet weather indicate hydrostatic pressure building under the slab. Left alone, that pressure will widen the cracks and lift sections of the floor.
Arrow Tight Waterproofing doesn't sell one-size-fits-all waterproofing packages. We diagnose the entry point, the pressure source, and the existing drainage condition β then we build the solution around what your specific property needs.
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 β so you stay dry even during power outages.
Our sub-slab drainage systems use schedule 40 perforated PVC pipe in a stone bed, designed to handle high-volume water tables.
π Get a Free Drainage Quote βExterior waterproofing is the most comprehensive solution available β stopping water before it contacts your foundation wall. We excavate to the footing, apply a rubberized polymer membrane to the exterior foundation face, install dimple-mat drainage board, and backfill with clean crushed stone to redirect surface water away from the structure.
We use SilkOate, UMARK, and other commercial-grade membrane systems β not the paint-on damp-proofing that deteriorates within a few years.
π Schedule an Exterior Assessment βWe inject poured-wall cracks using a port-and-backer system: surface ports are installed at 8β12 inch intervals along the crack, the surface is sealed with hydraulic cement, and two-part polyurethane or epoxy is pumped under pressure from the lowest port up β 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.
π Get a Crack Injection Estimate βCrawl spaces are the most overlooked moisture source in residential structures. An unencapsulated crawl space β even one that "never floods" β 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. Full encapsulation seals that air pathway permanently.
For crawl spaces with active water entry, we install a perimeter drain channel at the footer line, route it to an appropriate discharge point or sump.
π Schedule a Crawl Space Inspection βA sump pump is only as reliable as its installation and backup plan. We install primary pumps β typically 1/2 to 3/4 HP cast iron submersibles with a minimum 10-year rating β alongside battery-operated backup systems that activate automatically when your primary pump fails or power goes out.
For finished basements and properties with high groundwater, we recommend a dual-pump system: a primary submersible at normal operating level and a pedestal backup set two inches higher.
π Get a Sump System Quote βWe excavate and regrade window wells to the proper dimension, install a gravel drain bed with a perforated pipe tied into your perimeter drainage system, and apply waterproof flashing around the window frame β stopping the entry point at the source instead of managing it inside.
Egress window installations create a significant opening in your foundation wall, and sealing the rough opening properly is as important as the window itself.
π Book a Window Well Assessment βThere are a lot of waterproofing companies in NY. Here's what separates the ones who fix the problem from the ones who fix the symptom β and why Arrow Tight Waterproofing consistently lands on the right side of that line.
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, not retail channels.
Every technician on our crews is a direct employee of Arrow Tight Waterproofing, insured under our policy, and trained to our installation standards.
Our proposals are itemized: materials, labor, drainage footage, discharge line run, and any accessory items listed separately.
Our drainage system installations carry a written warranty against water intrusion through the protected area for the life of the system.
Water emergencies don't schedule themselves around business hours.
Call +1-866-476-1348 or fill out our contact form. A live dispatcher answers around the clock. We'll get your address and route 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 β just data.
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.
{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.}
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.
π Call Now: +1-866-476-1348"The crew showed up within 3 hours of my call at 9 PM on a Tuesday. I had water coming in through a crack in my poured wall at the floor joint β 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. I've had three major rain events since then β 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 why I had water or where it 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 on the crack has held for 18 months now with zero seepage. That's the most competent inspection I've ever gotten from a contractor.That kind of result speaks for itself."
"I bought a house in Gasport, NY knowing it had a moisture issue in the crawl space β 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. The technician walked me through every step before starting. No surprises on the invoice.Highly recommend the whole crew."
"We had a window well that flooded every time we got more than an inch of rain. The well was filling up and water was coming straight in through the window sill joint. 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.I'd recommend them to anyone dealing with the same problem."
"Called Arrow Tight Waterproofing after my old 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 of showing up. Once the emergency was managed, they walked me through a permanent drainage system upgrade. That was 8 months ago β I've had 6 rain events including one significant storm and the basement has stayed dry.Highly recommend the whole crew."
"As a commercial property manager overseeing several buildings in Gasport, NY, I've worked with a lot of waterproofing contractors. Arrow Tight Waterproofing is the first one that showed up to the initial walk with a written inspection checklist and completed it on-site before quoting. Every other contractor just eyeballed it and sent a number. Their exterior membrane on the building we had done 3 years ago is holding perfectly with zero callbacks.That kind of result speaks for itself."

Arrow Tight Waterproofing provides Waterproofing services across the full extent of Gasport, NY. Whether you're in a densely populated metro area or a rural property 40 miles from the nearest hardware store, our crews are dispatched from regional staging points to keep response times short and service costs predictable.
For property owners in Gasport and the surrounding areas, same-day or next-day appointments are typically available. Emergency calls β active flooding, sump pump failure, sudden seepage β receive priority routing and a 60-minute response target in most of our coverage footprint.
π Schedule Your Free On-Site Inspection