Exterior waterproofing addresses the source directly: excavation, membrane application, and footing drainage designed to keep water away from the wall in the first place.
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What "specialized" actually means for exterior waterproofing at our company — not a marketing word, a set of specific practices.
We don't treat exterior work as a bigger version of interior injection — it's a different discipline requiring different equipment and technique.
Initial exterior assessments, which require walking the full property perimeter, are typically scheduled within a few days.
Pricing accounts for landscaping restoration where excavation disturbs existing beds or hardscape.
Drainage board installed over the membrane channels water down to the footing drain rather than letting hydrostatic pressure build against the wall.
Each service below is scoped specifically to exterior waterproofing, not a generic waterproofing menu with the name swapped in.
Drainage board goes over the membrane to create a channel for water to travel down to the footing drain instead of pressing against the wall. This is the most thorough exterior fix available and typically carries the longest service life of any waterproofing method.
A footing drain intercepts groundwater at the base of the foundation and carries it away via gravity or a connected sump system before it can build pressure against the wall.
We regrade the perimeter to direct water away from the structure and coordinate downspout extensions as part of a complete exterior fix.
Window wells without proper drainage collect and hold water against a vulnerable point in the foundation wall — often the source of a leak that seemed to come from nowhere.
Cracks and cold joints exposed during excavation get treated directly at the source, from the outside, before the membrane goes over them.
Here's what happens between your call and a completed exterior fix.
Photos of the affected exterior area, texted ahead of the visit, help the technician plan equipment needs before arriving.
Most Thornton, IL exterior assessments are scheduled within a few days given the scope of a proper perimeter evaluation.
Pricing is itemized by excavation footage, membrane material, and drainage work, in writing before any digging begins.
We document the completed system with photos before backfilling, so you have a record of exactly what's below grade.
What Thornton, IL customers are saying after their exterior waterproofing service.
"They found our footing drain had completely collapsed after thirty years — explains why the interior fixes never fully worked before."
"Regraded the whole side yard and extended our downspouts as part of the job. Haven't seen water against that wall since."
"Excavation crew was careful with our landscaping and put everything back better than it was before."
"Appreciated that they explained why interior injection alone wasn't going to solve our specific problem before recommending exterior work."
The questions Thornton customers ask us before booking exterior waterproofing service.
Arrow Tight Waterproofing provides exterior waterproofing throughout Thornton, IL, dispatching from regional staging points to keep arrival times short across our full coverage footprint.
Not certain whether exterior waterproofing reaches your property? Call +1-866-476-1348 and dispatch can confirm immediately.
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.
