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Structural or Leaking? Foundation Crack Repair in Charleston, SC, Classified and Fixed

We classify every crack before injecting it — structural cracks get epoxy, active leaks get flexible polyurethane, and both get a written scope before we start.

24/7
Emergency Dispatch
100%
Flat-Rate Quotes
1-3
Day Turnaround
Written
Warranty Included
Licensed Foundation Crack Repair service in Charleston, SC - SGP Waterproofing
Why Choose Us

What Sets Our Foundation Crack Repair Team Apart in Charleston, SC

Not every Charleston, SC foundation crack needs the same material or approach. A vertical settlement crack behaves differently than a stair-step block crack, and we adjust injection technique and material to match what's actually happening in the wall.

1

Licensed Crack Classification

Our technicians are trained to tell a cosmetic hairline crack apart from one that signals structural movement, before recommending a fix.

2

Fast Local Response

An actively leaking crack rarely waits for a convenient afternoon — we prioritize dispatch for Charleston, SC cracks that are currently letting water in.

3

Flat-Rate Injection Pricing

Pricing is based on crack length and injection material, quoted in writing before we drill any injection ports.

4

Epoxy & Polyurethane Both On the Truck

We carry both structural epoxy and flexible polyurethane so the crew can match material to the crack on the same visit.

Professional Foundation Crack Repair technician working in Charleston, SC
What We Do

What Our Foundation Crack Repair Service Actually Covers

We scope every Foundation Crack Repair job in person before quoting it, since two properties with the same symptom rarely need the same fix.

Crack Repair

Low-Pressure Epoxy Injection

Structural cracks that aren't actively leaking get epoxy injection, which bonds the concrete back together rather than just sealing the surface.

Crack Repair

Polyurethane Injection for Active Leaks

Cracks that are still weeping get flexible polyurethane, which expands into voids and stays flexible enough to handle minor seasonal movement.

Crack Repair

Stair-Step Block Crack Repair

Stair-step cracking in block foundation walls needs a different injection port pattern than a vertical crack in poured concrete, and we adjust technique accordingly.

Crack Repair

Vertical & Horizontal Wall Crack Sealing

Vertical cracks are usually settlement-related and often isolated; horizontal cracks can indicate hydrostatic pressure pushing on the wall and get flagged for further evaluation.

Crack Repair

Pre-Sale Crack Inspection & Documentation

Selling a Charleston, SC home with a flagged foundation crack? We can inspect, repair, and provide documentation for the buyer's lender or inspector.

24/7 Emergency Foundation Crack Repair experts in Charleston, SC
How It Works

From Call to Resolution: How Foundation Crack Repair Works in Charleston, SC

01

Call & Crack Description

Tell us the crack's location, whether it's actively leaking, and roughly how wide it is so we can bring the right materials.

02

On-Site Crack Classification

A technician measures crack width, checks for wall bowing, and determines whether it's structural, cosmetic, or actively leaking.

03

Written Injection Quote

You'll get a price based on crack length and material — epoxy or polyurethane — before any drilling starts.

04

Injection & Cure Verification

Most single-crack injections are completed in a few hours, start to finish, in one visit.

Customer Reviews

Hear From Charleston, SC Customers We've Already Helped

Top rated local Foundation Crack Repair specialists in Charleston, SC
★★★★★

"Crack in our basement wall had been leaking for a year before we finally called. Injection took less than an afternoon and it's been dry since."

— Charleston Seller

★★★★★

"Polyurethane injection stopped an active leak the same day they showed up — didn't expect it to be that fast."

— Charleston Homeowner

★★★★★

"Appreciated the before-and-after photos for our records in case we ever need them for a future sale."

— Charleston Customer

★★★★★

"Stair-step crack in our block wall had us worried about the whole foundation. Turned out to be isolated and fixable with injection."

— Charleston Homeowner

FAQ

What Charleston, SC Customers Ask Us Most About Foundation Crack Repair

How do you classify contaminated water versus a structural crack repair?▼

Crack classification is separate from water contamination — we assess whether the crack is structural or cosmetic based on width, pattern, and any wall bowing.

Will you repair hairline cracks or only large ones?▼

Catching a crack early with injection usually costs less than waiting until it's actively leaking.

Is epoxy or polyurethane better for my crack?▼

We make the call on-site after inspecting the crack, not before we've seen it.

How long does crack injection take?▼

Most single-crack injections are completed in a few hours during one visit.

Will the crack reopen after injection?▼

If new movement occurs elsewhere in the wall, that's a separate issue we'd assess independently.

Do you provide documentation for real estate transactions?▼

Yes — we provide before-and-after photos and a repair summary that Charleston, SC buyers, sellers, and lenders commonly request.

Service Coverage

Where Our Foundation Crack Repair Crews Work in Charleston, SC

We handle foundation crack injection throughout Charleston and the surrounding Charleston, SC service area, including the zip codes listed below.

Reliable Foundation Crack Repair contractor in Charleston, SC by SGP Waterproofing
Affordable Foundation Crack Repair solutions in Charleston, SC
Trusted Foundation Crack Repair service in Charleston, SC - SGP Waterproofing

Zip codes we serve in Charleston, SC: 29424 29425 29455 29405 29407 29401 29403 29409 29492 29412 29414 29402 29413 29417 29422 29457

Charleston, SC's Foundation Crack Repair Crew Is One Call Away

Call now for a free inspection and a flat-rate quote before anything gets worse.

Call +1-866-476-1348

Our Services in Charleston, SC

Charleston is the most populous city in the U.S. state of South Carolina, the county seat of Charleston County, and the principal city in the Charleston metropolitan area. The city lies just south of the geographical midpoint of South Carolina's coastline on Charleston Harbor, an inlet of the Atlantic Ocean formed by the confluence of the Ashley, Cooper, and Wando rivers. Charleston had a population of 150,277 at the 2020 census. The 2020 population of the Charleston metropolitan area, comprising Berkeley, Charleston, and Dorchester counties, was 799,636 residents, the third-largest in the state, 8th-largest in the Deep South and the 74th-largest metropolitan statistical area in the United States.

Zip Codes in Charleston, SC that we also serve: 29424 29425 29455 29405 29407 29401 29403 29409 29492 29412 29414 29402 29413 29417 29422 29457

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🟢 Techs On Duty in Charleston, SC Call +1-866-476-1348