The Arrow Tight Waterproofing Story β Built by Waterproofing Specialists, Not Salespeople
We started Arrow Tight Waterproofing after years of watching homeowners get sold vague 'waterproofing packages' that never named the actual problem. Every technician we send in Portland is licensed, background-checked, and trained to diagnose before quoting β not the other way around.
Our technicians carry thermal cameras and calibrated moisture meters to every inspection, because guessing at a foundation problem wastes your money and our reputation. That's the standard for every job in Portland, residential or commercial.
We keep detailed job records for every property in Portland we've serviced, which means if you call back in three years with a question about your system, we can pull the exact specs of what was installed rather than starting from scratch.
IICRC-certified technicians on every job, no exceptions
licensed in OR 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
What a Failing Foundation Actually Looks Like
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 Portland.
01
Efflorescence on Basement Walls
White powdery buildup on a foundation wall means water has been passing through it, even if the surface looks dry today.
02
A Musty Smell That Won't Go Away
If a dehumidifier only masks the smell instead of fixing it, there's an active moisture source somewhere in the structure.
03
Cracks Along the Wall-Floor Joint
The cove joint is the single most common water entry point in basements β staining or gaps there usually mean hydrostatic pressure is pushing water in.
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
If the bottom foot of drywall in a below-grade room feels soft or the paint is bubbling, that's usually vapor transmission through the wall, not a plumbing leak.
08
Cold, Damp Floors Above a Crawl Space
Floors that stay cold and slightly damp-feeling even with the heat running usually trace back to an open or failed vapor barrier beneath the house, not an HVAC problem.
Core Services
Our Core Waterproofing Services in Portland
From emergency response to full commercial systems, here's the range of Waterproofing work our crews handle in Portland.
01
Emergency Water Intrusion Response
When water is actively entering a property in Portland, our first priority is stopping the intrusion, then extracting standing water before secondary damage sets in.
We carry the equipment needed to control an active situation immediately, then scope the permanent fix once the emergency is under control.
For homeowners in Portland, we install interior drain tile, sump systems, and crawl space encapsulation sized to your property's actual groundwater load β not a one-size package.
Every residential install includes post-job moisture verification, so you have documented proof the system is working, not just our word for it.
For property managers in Portland, 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.
When a foundation issue is structural rather than purely a water problem, we bring in the crack-classification and reinforcement expertise that basic waterproofing crews don't carry.
Every structural repair is documented with before-and-after photos and moisture readings as part of your warranty file.
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.
Battery backup and monitored alarm options are available on every pump we install, so a power outage during a storm doesn't leave the system unprotected.
Why Property Owners in Portland 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
If something about the completed work doesn't meet the scope we agreed to, we return and correct it under the warranty terms, in writing.
Commercial-Grade Materials, Every Time
Material selection isn't where we compete on price β we'd rather lose a bid than install something we know will fail in a few years.
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
From Your Call to a Documented Fix
01
Call or Request an Inspection
There's no charge for the call or the inspection that follows, so there's no downside to getting a second opinion even if you've already spoken with another contractor.
02
On-Site Diagnosis
A certified technician inspects the property with thermal imaging and moisture meters, mapping the actual water path before recommending anything.
03
Written, Fixed-Price Proposal
Review the proposal at your own pace; we don't pressure same-visit sign-off, though we can often start within days once approved.
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.
Water Problems Don't Fix Themselves
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.That's the kind of fix that actually holds up."
R. β Homeowner, Portland
β β β β β
"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, Portland
β β β β β
"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.That's the kind of fix that actually holds up."
T. β Property Manager, Portland
β β β β β
"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, Portland
β β β β β
"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, Portland
β β β β β
"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.That's the kind of fix that actually holds up."
L. β Property Manager, Portland
FAQ
Straight Answers About Waterproofing
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.
Timeline depends entirely on scope β we give you a written schedule estimate as part of the proposal so there's no ambiguity going in.
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 Portland β call +1-866-476-1348 to confirm your specific address, though it's almost certainly within our service area.
For the initial inspection, yes β we need access to the affected area and it helps to walk through what we're seeing together, though the visit is usually under an hour.
A patch treats the visible symptom β a caulked crack, a coat of sealant β without addressing why water found that path in the first place, so the same issue often resurfaces nearby.
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
Our Service Footprint, in Portland
Arrow Tight Waterproofing provides Waterproofing services in Portland, with crews staged regionally to keep response times reasonable whether you're in a dense metro area or further out.
Call +1-866-476-1348 to confirm coverage for your specific address β given our regional staging in Portland, 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 Portland 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.
