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


Arrow Tight Waterproofing was founded on one principle: a dry basement shouldn't be a luxury. Our crew of certified technicians covers Anoka, MN with industrial waterproofing systems — the same membranes, drainage matting, and injection resins used in commercial construction, installed in your property at residential pricing.
We're not a general contractor who does waterproofing on the side. Every job we take — whether it's a sump system installation, a foundation crack repair, or full exterior waterproofing — is handled by specialists. No subcontracting, no handoffs, no surprises on the invoice.
Water damage rarely announces itself dramatically at first. It starts quiet — 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 — 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.
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 — or runs non-stop — 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.
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. This typically requires 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 of your basement — capturing water before it can rise above slab level — and route it to a sump pit equipped 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.
This approach solves the problem at the source: water never reaches your interior wall surface.
📞 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 with hydraulic cement, 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 of 3/4 inch 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 at the footer line, route it to an appropriate discharge point or sump.
📞 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 for proper water collection, sealed lids to prevent vapor and radon entry, and a discharge line that terminates a minimum of 10 feet from the foundation at a positive-grade daylight point.
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.
📞 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 — 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.
📞 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 actually 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.
The waterproofing membrane we apply to your foundation is the same specification used on commercial buildings in MN — a 60-mil rubber barrier.
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.
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.
Our emergency dispatch protocol means a technician assesses the situation within 60 minutes of your call in most of our MN service territory.
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 — 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.}
Our crews are standing by to assess your Anoka 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 on a Tuesday. 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. I've had three major rain events since then — completely dry. Worth every dollar.That kind of result speaks for itself."
"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.Highly recommend the whole crew."
"I bought a house in Anoka, MN 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. The technician walked me through every step before starting. No surprises on the invoice.That kind of result speaks for itself."
"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.That kind of result speaks for itself."
"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 — 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 Anoka, MN, 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.I'd recommend them to anyone dealing with the same problem."

Arrow Tight Waterproofing provides Waterproofing services across the full extent of Anoka, MN. 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 Anoka and the surrounding areas, 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.
📞 Call Now to Check Availability in Anoka