Who We Are: A Licensed Waterproofing Crew in Flint
Too many contractors in Flint sell a fix before they've actually confirmed what's wrong. Arrow Tight Waterproofing built its process around the opposite order: inspect first, document what we find, and only then put a number on paper.
Whether the job is a single crack injection or a full drainage overhaul, the same certified crew handles it start to finish in Flint — no subcontractors, no handoffs, no one new showing up halfway through.
We keep detailed job records for every property in Flint we've serviced, which means if you call back in three years with a question about your system, we can pull the exact specs of what was installed rather than starting from scratch.
IICRC-certified technicians on every job, no exceptions
licensed in MI with full liability and workers' comp coverage
Thermal imaging and calibrated moisture readings before every quote
Written, transferable warranty on all completed systems
Direct-employee crews — never subcontracted out
Warning Signs
What a Failing Foundation Actually Looks Like
Most foundation failures don't start as floods — they start small, and they're easy to miss until the damage compounds. Here's what our technicians look for on every inspection in Flint.
01
Efflorescence on Basement Walls
We see this most often on walls that look completely dry to the touch — the salt deposit is evidence of past water movement, not current dampness.
02
A Musty Smell That Won't Go Away
Persistent musty odor almost always traces back to elevated humidity or an active leak feeding mold growth somewhere you can't see.
03
Cracks Along the Wall-Floor Joint
Cracking where your floor meets the foundation wall is rarely cosmetic; it's typically the first visible sign of pressure building against the wall.
04
A Sump Pump That Never Stops Running
We treat constant cycling as an early warning, not a normal condition — the pump working overtime today is the pump failing sooner than expected.
05
Bowing or Leaning Foundation Walls
A wall that's no longer plumb is telling you the soil outside is pushing harder than the wall was built to resist.
06
Rust Stains Bleeding Through Concrete
This sign often gets dismissed as cosmetic, but it points to water reaching structural steel, which is a different severity than surface dampness.
07
Peeling Paint or Soft Drywall Near the Floor
By the time drywall is visibly damaged, the moisture behind it has usually been present for weeks or months already.
08
Cold, Damp Floors Above a Crawl Space
Persistent cold-floor complaints in homes with a crawl space are one of the most common calls we get, and encapsulation resolves them far more often than a furnace repair does.
Core Services
Our Core Waterproofing Services in Flint
We don't sell a single fixed package — every property in Flint gets a scope built around what our inspection actually finds.
01
Emergency Water Intrusion Response
Active flooding doesn't wait for business hours, and neither do we — our emergency line in Flint is answered live, 24 hours a day, with crews dispatched to stop the immediate entry point first.
Every emergency truck carries submersible pumps, temporary sump units, and crack-sealing materials, so most active leaks can be stabilized on the first visit.
For homeowners in Flint, we install interior drain tile, sump systems, and crawl space encapsulation sized to your property's actual groundwater load — not a one-size package.
We size every residential system — pump horsepower, pipe diameter, gravel bed depth — to your specific property rather than a generic template.
Commercial foundations in Flint carry different risk than residential ones — larger footprints, tenant liability, and often tighter access — and our crews scope and schedule around that.
We provide the same written, itemized proposals for commercial clients as residential ones, with the added documentation many property managers need for ownership or insurance records.
Beyond drainage, our crews handle foundation crack injection, carbon fiber wall reinforcement, and structural crack classification for properties in Flint showing signs of settlement or lateral pressure.
Every structural repair is documented with before-and-after photos and moisture readings as part of your warranty file.
A waterproofing system is only as reliable as the pump moving water out of it — we size, install, and upgrade sump systems in Flint to match actual groundwater volume rather than defaulting to whatever's in stock.
We also correct discharge line routing and grading as part of any pump job, since a poorly graded discharge line often just recirculates water back toward the foundation.
Every waterproofing company claims to be the best. Here's what we actually do differently, and why it holds up under scrutiny.
Upfront, Itemized Pricing
The number on your proposal is the number on your invoice — materials, labor, and scope are itemized before any work begins, with no surprise line items added mid-job.
Fast Local Dispatch
Crews are staged regionally in Flint specifically to keep response times short — most inspections are scheduled within days, and emergencies get same-day priority.
Satisfaction Backed in Writing
If something about the completed work doesn't meet the scope we agreed to, we return and correct it under the warranty terms, in writing.
Commercial-Grade Materials, Every Time
Our sump pumps are cast iron, our drain tile is schedule 40 PVC, and our membranes are rated for sustained hydrostatic pressure — not hardware-store equivalents.
Diagnosis Before Recommendation
Our technicians document the actual water path and pressure source before recommending a fix, so you're paying for the right repair the first time.
Our Process
From Your Call to a Documented Fix
01
Call or Request an Inspection
There's no charge for the call or the inspection that follows, so there's no downside to getting a second opinion even if you've already spoken with another contractor.
02
On-Site Diagnosis
Expect the inspection itself to take 45 to 90 minutes depending on property size and how many areas need checking.
03
Written, Fixed-Price Proposal
Review the proposal at your own pace; we don't pressure same-visit sign-off, though we can often start within days once approved.
04
Installation & Warranty Documentation
Once the system is installed and tested, you get warranty paperwork that transfers with the property if you ever sell.
Water Problems Don't Fix Themselves
Free on-site inspection, written estimate, no obligation. We answer 24/7.
What Customers Say About Arrow Tight Waterproofing
★★★★★
"Had a cove joint leak that two other companies just patched without explaining why it kept happening. Arrow Tight Waterproofing's technician showed me the moisture readings and traced it to hydrostatic pressure, then installed drain tile that's held through every storm since.Exactly the level of service we expected."
R. — Homeowner, Flint
★★★★★
"Called at 11 PM with active water coming in during a storm. Live person answered immediately, crew was on-site within the hour, and they had a temporary pump running before starting the real diagnosis.That's the kind of fix that actually holds up."
K. — Emergency Client, Flint
★★★★★
"We manage a small multi-unit building and needed the work scheduled around tenants. They coordinated everything cleanly and the commercial-grade membrane they used has zero callbacks two years later.Would recommend them without hesitation."
T. — Property Manager, Flint
★★★★★
"Appreciated that they didn't just sell us a package. The inspection actually found the real problem — a bowing block wall — and the carbon fiber reinforcement plus crack injection fixed it properly instead of just sealing the surface.That's the kind of fix that actually holds up."
M. — Homeowner, Flint
★★★★★
"Sump pump had been cycling nonstop for weeks before we called. They correctly diagnosed it as undersized for our actual water table and upgraded it — no more constant cycling, and it's kept up with two heavy storms since.That's the kind of fix that actually holds up."
D. — Homeowner, Flint
★★★★★
"We're a small property management company and needed drainage work done across three units without disrupting tenants. Arrow Tight Waterproofing scheduled around occupied hours, communicated clearly with residents, and the itemized invoice matched the original proposal exactly.Would recommend them without hesitation."
L. — Property Manager, Flint
FAQ
What Flint, MI Customers Ask Us Most
Response time depends on urgency — active flooding is treated as top priority, while non-urgent inspections are usually booked within the week.
Yes — every job gets a written, itemized proposal after a real on-site inspection, and that number is what you're invoiced, not an estimate that grows once work starts.
Emergency response covers active flooding, sudden sump failure, and burst pipe water intrusion — we stabilize the situation first, then scope the permanent repair.
Interior drainage manages water after it enters at the wall-floor joint; exterior waterproofing stops it from reaching the wall at all. Our inspection determines which fits your specific situation.
We document every job with photos and moisture readings you can submit for any claim, regardless of what your policy ultimately covers.
Timeline depends entirely on scope — we give you a written schedule estimate as part of the proposal so there's no ambiguity going in.
A technician inspects the property directly with thermal imaging and moisture meters before any number is put on paper.
Warranty terms are documented and registered to the property address, with a clear process for filing a service claim if anything comes up.
We provide Waterproofing services in Flint, with regionally staged crews that keep response times reasonable across the footprint we serve.
For the actual repair, it depends on scope — interior work often doesn't require you to be present for the full job, while we'll coordinate access details with you directly for anything involving excavation.
A proper fix starts with identifying the pressure source or entry mechanism, then installs a system rated to handle it permanently, not just plug the spot you can see.
Some clients ask us to speak directly with their adjuster about scope and materials, and we're glad to when it's useful for a claim already in progress.
Service Area
Waterproofing Coverage in Flint
We built our coverage in Flint around regional crew staging rather than one central office, which keeps dispatch times shorter across the footprint we serve.
Call +1-866-476-1348 to confirm coverage for your specific address — given our regional staging in Flint, it's very likely within our service area.
Whether your property in Flint has a finished basement, an unfinished crawl space, or a slab foundation, our crews carry the equipment and training to assess and quote all three foundation types on the same visit.
New service areas are added as we expand our regional crew staging, so if you were told we didn't cover your address in the past, it's worth checking again.
