Who We Are: A Licensed Waterproofing Crew in Glyndon
Too many contractors in Glyndon sell a fix before they've actually confirmed what's wrong. Arrow Tight Waterproofing built its process around the opposite order: inspect first, document what we find, and only then put a number on paper.
We've built our reputation in Glyndon on jobs that don't need a second visit. That means slower quoting sometimes, since we're inspecting properly instead of estimating from a driveway conversation, but it also means fewer callbacks.
Every technician completes ongoing training as materials and methods evolve β the polyurethane injection resin we use today isn't the same formulation the industry relied on ten years ago, and neither is our crew's training.
IICRC-certified technicians on every job, no exceptions
licensed in MN with full liability and workers' comp coverage
Thermal imaging and calibrated moisture readings before every quote
Written, transferable warranty on all completed systems
Direct-employee crews β never subcontracted out
Warning Signs
Six Warning Signs You Shouldn't Ignore
Waiting until you see standing water means you've already missed the cheaper fix. These are the early signals our crews are trained to catch in Glyndon.
01
Efflorescence on Basement Walls
We see this most often on walls that look completely dry to the touch β the salt deposit is evidence of past water movement, not current dampness.
02
A Musty Smell That Won't Go Away
Persistent musty odor almost always traces back to elevated humidity or an active leak feeding mold growth somewhere you can't see.
03
Cracks Along the Wall-Floor Joint
Cracking where your floor meets the foundation wall is rarely cosmetic; it's typically the first visible sign of pressure building against the wall.
04
A Sump Pump That Never Stops Running
Continuous cycling means your pump is handling more groundwater than it was sized for, and it's only a matter of time before it fails under the load.
05
Bowing or Leaning Foundation Walls
Measuring wall deflection with a level is one of the first things we do on any inspection where bowing is suspected, since the degree of lean changes the recommended fix.
06
Rust Stains Bleeding Through Concrete
Iron doesn't rust without sustained water contact, so rust bleeding through concrete is a reliable indicator of ongoing penetration.
07
Peeling Paint or Soft Drywall Near the Floor
By the time drywall is visibly damaged, the moisture behind it has usually been present for weeks or months already.
08
Cold, Damp Floors Above a Crawl Space
Persistent cold-floor complaints in homes with a crawl space are one of the most common calls we get, and encapsulation resolves them far more often than a furnace repair does.
Core Services
Complete Waterproofing Solutions, in Glyndon
We don't sell a single fixed package β every property in Glyndon gets a scope built around what our inspection actually finds.
01
Emergency Water Intrusion Response
Active flooding doesn't wait for business hours, and neither do we β our emergency line in Glyndon is answered live, 24 hours a day, with crews dispatched to stop the immediate entry point first.
We carry the equipment needed to control an active situation immediately, then scope the permanent fix once the emergency is under control.
Residential waterproofing in Glyndon covers everything from a single crack injection to a full-perimeter drainage retrofit, scoped after a real inspection.
We size every residential system β pump horsepower, pipe diameter, gravel bed depth β to your specific property rather than a generic template.
For property managers in Glyndon, we coordinate around occupied units and business hours, minimizing disruption while still delivering a full waterproofing scope.
We provide the same written, itemized proposals for commercial clients as residential ones, with the added documentation many property managers need for ownership or insurance records.
Beyond drainage, our crews handle foundation crack injection, carbon fiber wall reinforcement, and structural crack classification for properties in Glyndon showing signs of settlement or lateral pressure.
We're upfront when a problem needs structural engineering input beyond what waterproofing alone can fix, rather than selling a repair that won't hold.
Failed or undersized sump pumps are one of the most common reasons a previously working system suddenly floods, and we treat pump sizing as its own diagnostic step, not an afterthought to drainage work.
We also correct discharge line routing and grading as part of any pump job, since a poorly graded discharge line often just recirculates water back toward the foundation.
Why Property Owners in Glyndon Choose Arrow Tight Waterproofing
These aren't marketing lines β they're the specific practices that separate a repair that lasts from one that doesn't.
Upfront, Itemized Pricing
We quote a fixed price after a real inspection, not a phone estimate, and we get written sign-off before any change to that scope.
Fast Local Dispatch
Response time isn't an afterthought for us β it's a scheduling metric we track and staff around, not just a marketing line.
Satisfaction Backed in Writing
Every completed system comes with a written, transferable warranty β not a verbal promise that's hard to enforce two years later.
Commercial-Grade Materials, Every Time
We install the same membrane specification, pipe schedule, and pump ratings on residential jobs that commercial contracts require β never a downgraded consumer-grade substitute.
Diagnosis Before Recommendation
We inspect with thermal imaging and moisture meters before quoting anything, because a scope built on a guess is a scope that often needs redoing.
Our Process
How a Waterproofing Job Works With Us
01
Call or Request an Inspection
Call +1-866-476-1348 and describe the issue. We route the right technician for your specific situation rather than a generalist.
02
On-Site Diagnosis
We document every visible entry point and pressure indicator during the visit β this is what the eventual proposal is built around.
03
Written, Fixed-Price Proposal
You receive an itemized proposal before any work begins β materials, labor, and scope laid out in writing, not estimated verbally.
04
Installation & Warranty Documentation
Our crew completes the approved scope, verifies the fix with post-install moisture readings, and hands you written warranty documentation registered to the property.
Get a Free Inspection Before It Spreads
Our crews are ready to assess your property today β call now.
"Had a cove joint leak that two other companies just patched without explaining why it kept happening. Arrow Tight Waterproofing's technician showed me the moisture readings and traced it to hydrostatic pressure, then installed drain tile that's held through every storm since.Exactly the level of service we expected."
R. β Homeowner, Glyndon
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"Called at 11 PM with active water coming in during a storm. Live person answered immediately, crew was on-site within the hour, and they had a temporary pump running before starting the real diagnosis.That's the kind of fix that actually holds up."
K. β Emergency Client, Glyndon
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"We manage a small multi-unit building and needed the work scheduled around tenants. They coordinated everything cleanly and the commercial-grade membrane they used has zero callbacks two years later.Would recommend them without hesitation."
T. β Property Manager, Glyndon
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"Appreciated that they didn't just sell us a package. The inspection actually found the real problem β a bowing block wall β and the carbon fiber reinforcement plus crack injection fixed it properly instead of just sealing the surface.Would recommend them without hesitation."
M. β Homeowner, Glyndon
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"Sump pump had been cycling nonstop for weeks before we called. They correctly diagnosed it as undersized for our actual water table and upgraded it β no more constant cycling, and it's kept up with two heavy storms since.That's the kind of fix that actually holds up."
D. β Homeowner, Glyndon
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"We're a small property management company and needed drainage work done across three units without disrupting tenants. Arrow Tight Waterproofing scheduled around occupied hours, communicated clearly with residents, and the itemized invoice matched the original proposal exactly.Would recommend them without hesitation."
L. β Property Manager, Glyndon
FAQ
Waterproofing Frequently Asked Questions
Standard inspections are typically scheduled within a few days of your call; active emergencies get same-day priority dispatch in most of our coverage area.
Yes β every job gets a written, itemized proposal after a real on-site inspection, and that number is what you're invoiced, not an estimate that grows once work starts.
Our emergency line is answered live 24/7, and crews carry equipment for immediate water extraction, temporary sump deployment, and active crack sealing on the first visit.
Interior drainage manages water after it enters at the wall-floor joint; exterior waterproofing stops it from reaching the wall at all. Our inspection determines which fits your specific situation.
Gradual groundwater seepage is typically treated as a maintenance issue and excluded, while sudden events like burst pipes are often covered β check your specific policy language.
Crack injection is usually a few hours; interior drain tile runs 1 to 3 days depending on perimeter footage; full exterior excavation can run 2 to 5 days depending on depth.
A technician inspects the property directly with thermal imaging and moisture meters before any number is put on paper.
Yes β every completed system includes a written warranty that's transferable if you sell the property, not just a verbal assurance.
Coverage extends across Glyndon β call +1-866-476-1348 to confirm your specific address, though it's almost certainly within our service area.
For the actual repair, it depends on scope β interior work often doesn't require you to be present for the full job, while we'll coordinate access details with you directly for anything involving excavation.
A proper fix starts with identifying the pressure source or entry mechanism, then installs a system rated to handle it permanently, not just plug the spot you can see.
Some clients ask us to speak directly with their adjuster about scope and materials, and we're glad to when it's useful for a claim already in progress.
Service Area
Waterproofing Coverage in Glyndon
We built our coverage in Glyndon around regional crew staging rather than one central office, which keeps dispatch times shorter across the footprint we serve.
Call +1-866-476-1348 to confirm coverage for your specific address β given our regional staging in Glyndon, it's very likely within our service area.
Coverage isn't limited to single-family homes β we service condos, multi-unit rentals, and small commercial buildings in Glyndon using the same diagnostic-first process regardless of property type.
New service areas are added as we expand our regional crew staging, so if you were told we didn't cover your address in the past, it's worth checking again.
