Whether it's a hairline settlement crack or a wider stair-step pattern showing wall movement, the right repair depends entirely on getting the diagnosis right before anyone reaches for resin.
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What "specialized" actually means for foundation crack repair at our company — not a marketing word, a set of specific practices.
We don't inject resin into a crack that's still actively widening — that's a band-aid, not a fix, and we'll tell you so directly.
Trucks carry both epoxy and polyurethane injection systems so the crew can match the resin to the crack type on the first visit.
No hourly billing surprises — if a crack turns out longer or more complex once opened up, we discuss it with you before proceeding, not after the invoice arrives.
Epoxy resin, which cures rigid and restores structural bond strength, is reserved for stable, non-water cracks needing load-bearing repair.
Each service below is scoped specifically to foundation crack repair, not a generic waterproofing menu with the name swapped in.
For cracks actively passing water, polyurethane injection resin is pumped in under pressure, where it expands to fill the full depth and width of the crack, including hairline branches a surface patch would miss.
This method is reserved for cracks confirmed as non-active — injecting epoxy into a still-moving crack just cracks the epoxy itself.
We document displacement with photos and measurements and, when warranted, refer you to a structural engineer before recommending wall anchors or carbon fiber reinforcement.
For foundation walls showing early bowing alongside cracking, carbon fiber straps or steel wall anchors can arrest further movement without full wall replacement.
Some cracks are fed by poor exterior grading directing water straight at the foundation — injecting the crack without correcting the grading just delays the next one.
Four steps, start to finish — from the first call to a properly classified and injected crack.
Active water intrusion is flagged for priority same-day or next-day scheduling.
Most Wilsonville, OR crack evaluations are scheduled within a few days for non-emergency cases, faster for active leaks.
You'll see the classification explained in plain terms — why this crack is a polyurethane candidate versus needing a structural referral.
Injected cracks are checked for full-depth fill with a follow-up inspection, not just sealed on the surface and called done.
Real feedback from Wilsonville-area customers who called us for foundation crack repair.
"They told us straight up our crack needed an engineer to look at the wall movement first instead of just selling us an injection we didn't need yet."
"Injection stopped a leak that had been coming through the same spot every spring for three years."
"Appreciated that they explained the difference between the two resin types instead of just picking one without telling us why."
"Fast response — had someone out within a day when we noticed water actively coming through a new crack."
The questions Wilsonville customers ask us before booking foundation crack repair service.
Arrow Tight Waterproofing provides foundation crack repair throughout Wilsonville, OR, dispatching from regional staging points to keep arrival times short across our full coverage footprint.
Coverage for crack injection service is reviewed regularly and may now include areas it didn't before.
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.
