Water doesn't wait for business hours, and neither do we. Arrow Tight Waterproofing brings licensed Vapor Barrier Installation expertise to properties throughout Pennsylvania, PA with same-day dispatch and upfront flat-rate pricing.


Arrow Tight Waterproofing was built by tradespeople who got tired of seeing homeowners across Pennsylvania, PA 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.
Every technician on our team is IICRC-certified and carries full liability coverage. We pull permits where required, provide moisture readings before and after every job, and stand behind our work with a written warranty that transfers with the property.
Most basement floods don't start as floods. They start as these ignored details. If you see any of these in your Pennsylvania, PA property, schedule a free inspection before the damage compounds.
That white chalky residue isn't cosmetic — it's mineral salt deposited by water that has already penetrated your foundation 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.
The cove joint — where the floor slab meets the foundation wall — is the most common water entry point in basement systems. Staining or pooling there means hydrostatic pressure is actively pushing in.
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.
Every moisture problem has a different source. We identify yours specifically before we quote anything — then we deploy the right system, not the most expensive one.
When hydrostatic pressure is the primary culprit, the most effective long-term solution is a properly engineered interior drainage system. We install sub-slab perforated drain tile around the perimeter, capturing water before it can rise above slab level, and route it to a sump pit with a dual-pump configuration.
Our sub-slab drainage systems use schedule 40 perforated PVC pipe in a stone bed, designed to handle high-volume water tables.
📞 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 →Poured concrete foundation cracks are repaired from the interior using high-pressure polyurethane or epoxy injection — the appropriate chemistry depends on whether the crack is actively leaking or dry. Polyurethane foam expands into wet, actively leaking cracks and cures flexible. Epoxy injection is used in dry cracks where structural bond restoration is the goal.
Block wall repointing involves removing deteriorated mortar joints to a minimum depth and repacking with waterproof hydraulic mortar.
📞 Get a Crack Injection Estimate →We install a minimum 20-mil reinforced poly vapor barrier over the entire crawl space floor and seal it up the walls to the sill plate — then seal all vents, install a conditioned air supply or dedicated crawl space dehumidifier, and spec a sump system if groundwater is present.
For crawl spaces with active water entry, we install a perimeter drain channel, route it to a sump, and then encapsulate over the drainage system.
📞 Schedule a Crawl Space Inspection →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.
For finished basements and properties with high groundwater.
📞 Get a Sump System Quote →We 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.
Window well covers are a maintenance measure, not a waterproofing solution — but paired with proper drainage installation.
📞 Book a Window Well Assessment →There are waterproofing companies throughout Pennsylvania, PA. 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.
Every estimate begins with a physical inspection of every visible moisture entry point.
The waterproofing membrane we apply to your foundation is the same specification used on commercial buildings — a 60-mil rubber barrier.
Arrow Tight Waterproofing holds active contractor's licensing and carries $2M general liability plus workers' compensation on every crew member.
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 Pennsylvania, PA service territory.
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 Pennsylvania, PA.
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.
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.}
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.
📞 Call Now: +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.I'd recommend them to anyone dealing with the same problem."
"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."
"I bought a house in Pennsylvania, PA 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.I'd recommend them to anyone dealing with the same problem."
"As a property manager overseeing several buildings in Pennsylvania, PA, 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.That kind of result speaks for itself."

Arrow Tight Waterproofing provides Vapor Barrier Installation services across the full extent of Pennsylvania, PA. 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.
For properties throughout Pennsylvania, PA, 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.
📞 Confirm Your Area is Covered — Call +1-866-476-1348