Email: info@basementwaterproofingtroy.com
Call: (248) 886-6545
Interior and exterior drainage, sump pump installation, and crack injection for wet or flood-prone Troy-area basements.
Most wet-basement searches in Troy trace back to one of two root causes: hydrostatic pressure from clay soil pushing groundwater against the foundation wall, or a specific crack — often from normal concrete curing or minor settlement — that's widened over repeated freeze-thaw cycles into an active water pathway. Treating both the same way is the most common reason a prior fix didn't hold: a system built for hydrostatic pressure is overkill and expensive for a single settlement crack, and injecting a crack that's really a symptom of broader wall pressure just buys a season or two before it fails again.
We start every basement waterproofing job with an on-site inspection that identifies which of these is actually happening — where water enters, what the exterior grading and gutter drainage look like, and whether prior repairs (if any) addressed the real cause or just the symptom. The system we recommend, and the price we quote, follows from that diagnosis.
A crack injected with the wrong material, or a drainage system installed without addressing an exterior grading problem first, often looks fixed for a season and then fails again — usually during the next hard freeze-thaw cycle. Our inspection checks the specific mechanism at work: whether water is entering through a wall crack, the floor-wall cove joint, or a porous block wall; whether your home's grading slopes water toward the foundation instead of away from it; and whether an existing footing drain has silted up over the decades, common in Oakland County homes built before modern drainage standards.
A perimeter drain along the interior footing, routing water to a sump pump rather than letting it pool against the wall — sized to your basement's actual water volume, not a generic length.
Excavation and membrane application on the outside of the foundation wall, for cases where addressing the water source before it reaches the wall is the better long-term fix.
Sizing and installing a sump pump matched to your basement's real water volume, with battery backup available so a power outage during a storm doesn't leave you unprotected.
Epoxy injection for structural cracks that need bonding and reinforcement, polyurethane injection for active water infiltration where flexibility matters more than structural bonding.
| Pricing factor | How it affects your estimate |
|---|---|
| Number of affected walls | More walls needing drainage or injection increases scope and cost. |
| Type of fix needed | Crack injection alone costs meaningfully less than a full interior drainage system. |
| Sump pump condition | A new or upgraded sump pump adds to a drainage-system quote if the existing one is missing or undersized. |
Cost depends almost entirely on scope: a single crack injection costs far less than a full interior drainage system with a new sump pump, and the number of affected walls matters more than square footage. We give you an exact number after the on-site inspection, not a phone estimate.
Sean Malloy, our senior technician, trained under a structural engineer before moving into residential waterproofing — that background shows in how methodically he explains the actual mechanism behind a recommendation, not just the recommendation itself. In a market where homeowners have real choices, we think the way to earn the job is to make our reasoning something you could evaluate against any other quote.
Request your free on-site inspection today.
Free on-site inspection — we identify where water is entering, why, and what prior work (if any) did or didn’t address.
A specific recommendation — matched to your actual diagnosis, explained in plain terms, not a standard package.
A clear quote — before any work begins, with no surprise add-ons mid-job.
The work itself — typically same-day for a single crack injection, one to three days for a full drainage system.
A warranty on the finished work, explained plainly before you sign anything.
A musty smell that won't go away, white mineral deposits (efflorescence) on the walls, a damp corner that reappears every winter, or a crack that seems to widen after a hard freeze are all signs it's time for an inspection — waiting typically means more extensive, more expensive work later.
That's exactly what the on-site inspection determines — whether the water source is broad hydrostatic pressure across the wall or a single localized crack, and whether an existing footing drain is still functioning or has silted up over time.
Yes, though a finished basement may need some drywall or flooring removed near the affected wall to access it — we'll walk you through exactly what that involves during your estimate.
We prioritize active leaks and flooding over routine inspections — call us and we'll do our best to get someone out quickly.