Licensed crews, same-day dispatch for active leaks, and a written guarantee on every system we install.
Call +1-866-476-1348
Arrow Tight Waterproofing has spent years earning a reputation in Dundee for showing up when a basement is taking on water and not leaving until it's actually fixed.
Every technician on our roster is Waterproofing-certified and licensed in OR, trained specifically in hydrostatic pressure diagnosis, drain tile installation, and structural crack classification — not general handyman work rebranded as waterproofing.
We run a dispatch-first model: local crews stocked with diagnostic gear and repair materials, ready to move on active water intrusion the same day it's reported.
We believe a homeowner should be able to see the evidence behind a recommendation, not just take our word for it — every diagnostic visit comes with documented findings you can keep.
Catching these signs early usually means a smaller repair bill and a lot less disruption to your home.
If the basement smell comes back within days of airing it out, that's moisture, not just staleness.
White, chalky staining on block or poured concrete walls — a mineral deposit called efflorescence.
A door frame that's suddenly out of square, or a window that won't close flush, can point to foundation movement.
Stair-step cracking in a block wall usually signals something more than simple concrete shrinkage.
Puddling near the same wall section after every storm points to a specific, fixable entry point.
If you can't remember the last time your sump pump was tested, that's worth addressing before the next storm does it for you.
A wall that bows inward even slightly is responding to soil pressure that isn't going away on its own.
If your basement dehumidifier is running around the clock and humidity still creeps up, the moisture source needs addressing, not just managing.
If metal items in your basement are corroding faster than they should, ambient moisture is almost certainly the cause.
From emergency response to permanent structural fixes, here's the full range of work our crews handle in Dundee.
When water is actively rising, extraction comes first — high-capacity pumps clear standing water while we map exactly where it's entering. Extraction is never treated as the finish line — it's the first step toward a lasting repair.
A perimeter drain tile channel installed below the slab intercepts groundwater before it can reach your floor, routing it to a properly sized sump basin and pump. Every basin includes a check valve, sealed lid, and battery backup so a power outage doesn't undo the fix.
Non-structural cracks respond well to polyurethane or epoxy injection depending on whether water is actively present and whether the crack is still moving. Photos and measurements are logged before and after every injection for your records.
Where the source is grading, a failed footing drain, or membrane failure visible from outside, exterior excavation and a rubberized membrane address the problem at its origin.
We size dehumidification equipment to your specific crawl space volume rather than a one-size-fits-all unit.
We calculate your pit's actual inflow rate before recommending pump horsepower, since an undersized pump is one of the most common causes of preventable flooding. Backup systems activate automatically the instant the primary loses power or falls behind.
For walls showing early bowing alongside seepage, carbon fiber straps or steel wall anchors can arrest further movement before it becomes a bigger structural concern. We explain the engineering rationale before recommending any wall reinforcement work.
Five things that actually separate a specialized Waterproofing crew from a general contractor with a truck and a sump pump on hand.
A lot of companies claim to offer Waterproofing, but the difference shows up in how the job is actually diagnosed and executed — not in the advertising.
We understand active seepage doesn't wait for a convenient slot, so emergency calls get dispatched immediately with equipment already loaded.
Pricing is based on what our diagnostic actually finds, not a generic per-square-foot estimate pulled out of thin air.
We run a full moisture survey — wall cameras, hydrostatic pressure readings, crack classification — before recommending any specific system.
Below-grade water intrusion work is a distinct trade, and our technicians are trained and certified specifically in it, not treating it as a side skill.
Drain tile, sump installations, and crack injections all carry a written warranty against failure at the treated location.
No mystery about what happens after you pick up the phone — here's the exact sequence from first call to a finished, fully tested repair, start to end.
Active water intrusion is flagged for priority scheduling right at this first call.
A technician arrives with moisture meters, a wall camera, and a hydrostatic pressure gauge to identify the actual entry point, not just the visible symptom.
Once you approve the scope, installation is scheduled — often within days, faster for active emergencies.
We test drain tile flow, pump activation, and injection fill before the crew leaves the property.
What homeowners in Dundee, OR are saying after calling us for Waterproofing.
"Had standing water after a spring storm and they had a full drain tile system installed within the week. Completely dry since."
"They showed us the actual crack on camera before recommending anything — nobody had ever bothered to look that closely before."
"Quote matched the final invoice to the dollar. No surprise line items once they opened up the wall."
"Battery backup pump they installed kept us dry through a multi-hour outage last winter. Would've flooded otherwise."
"Appreciated that they told us plainly our crack needed an engineer's eyes before injecting anything — didn't just upsell us."
"Crawl space encapsulation got rid of a musty smell we'd been dealing with for two years. Should've called sooner."
"They walked us through the moisture readings on the spot instead of just telling us to trust them. Made the whole decision easier."
"Sump pump replacement was done same-day after our old one failed during a storm. Genuinely impressed with the response time."
"We got three other quotes before calling them, and theirs was the only one that actually explained why our specific wall was leaking."
"Vapor barrier install in our crawl space was clean, fast, and the humidity reading dropped noticeably within a couple weeks."
Answers to the questions homeowners ask most before booking Waterproofing service.
Coverage is built around regional dispatch hubs rather than a single central office, which is exactly why response times in Dundee stay competitive.
Our Waterproofing coverage extends across residential and commercial properties in Dundee, from single-family basements to multi-unit buildings and light commercial structures.
Property size changes the scope of the work, not the rigor of the diagnostic — every job gets the same moisture survey before a single recommendation is made.
Coverage boundaries shift as we bring on new regional crews, so a quick call to +1-866-476-1348 is always the most current answer.
Notice: Arrow Tight Waterproofing is a free referral service designed to assist homeowners and businesses in connecting with independent local contractors. All contractors and service technicians are independent and Arrow Tight Waterproofing does not warrant or guarantee any work performed. It is the responsibility of the customer to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All calls are routed to independent local service providers.
