Exterior waterproofing addresses the source directly: excavation, membrane application, and footing drainage designed to keep water away from the wall in the first place, permanently.
Call +1-866-476-1348
Four commitments that separate a properly trained exterior waterproofing crew from a generalist showing up with a truck and a hope.
We don't treat exterior work as a bigger version of interior injection — it's a distinct discipline requiring different technique and specialized equipment.
Initial exterior assessments, requiring a full perimeter walk, are typically scheduled within a few days across our service area.
Quotes break out excavation footage, membrane material, footing drain installation, and backfill separately in writing.
We apply rubberized asphalt or sheet membrane rated for permanent below-grade exposure, not a consumer coating that degrades in a season or two.
We don't run a one-size-fits-all playbook — every exterior waterproofing job starts from these core service components, adapted to what your property actually needs.
We excavate along the affected wall section down to the footing, prep the surface, and apply a rubberized membrane rated for permanent below-grade exposure. This is the most thorough exterior fix available and typically carries the longest service life.
A footing drain intercepts groundwater at the base of the foundation and carries it away 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 fix.
Window wells without proper drainage collect and hold water against a vulnerable point in the wall — often the source of a leak that seemed to come from nowhere.
Cracks and cold joints exposed during excavation get treated directly from the outside before the membrane goes over them.
Here's what happens between your call and a completed exterior fix.
Active pooling against the foundation is flagged for priority scheduling.
Technicians walk the full property perimeter before recommending excavation, checking grading and downspout placement.
Utility locates are scheduled ahead of excavation as standard practice.
Excavation sites are backfilled, compacted, and regraded to proper slope before the crew leaves, with landscaping restoration included.
What Mount Rainier, MD customers are saying after their exterior waterproofing service.
"They found our footing drain had completely collapsed after thirty years — explains why 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."
"They explained why interior injection alone wasn't going to solve our specific problem before recommending exterior work."
High-intent questions we hear most often about exterior waterproofing in Mount Rainier, MD.
Our exterior waterproofing crews cover Mount Rainier and the surrounding Mount Rainier, MD service area, with regional dispatch keeping response times tight regardless of which part of the footprint you're in.
Because exterior work requires excavation crews, coverage is more regional than interior services — worth confirming by phone either way.
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.
