● Open 24/7 for emergency calls

Foundation Crack Repair in Charleston, SC — Epoxy & Polyurethane Injection Done Right

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
Licensed Foundation Crack Repair service in Charleston, SC - SGP Waterproofing
Why Choose Us

Why Charleston, SC Property Owners Choose SGP Waterproofing for Foundation Crack Repair

Misclassifying a crack is the single most common mistake in this trade — treating a structural crack with the wrong material, or injecting a crack that actually needed a broader drainage fix behind it. We classify before we inject, every time.

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

Polyurethane expands to fill voids behind an actively weeping wall; epoxy is reserved for cracks that need structural bonding.

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

Comprehensive Foundation Crack Repair Solutions in Charleston, SC

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

Epoxy-injected cracks regain much of their original structural strength, which matters for load-bearing foundation walls.

Crack Repair

Polyurethane Injection for Active Leaks

Polyurethane cures even in the presence of water, which makes it the right call for a crack that's actively letting water through.

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

We document crack width and location with photos before and after injection so you have a record of the repair.

Crack Repair

Pre-Sale Crack Inspection & Documentation

Fast turnaround matters during a real estate transaction, and we prioritize scheduling for time-sensitive pre-sale repairs.

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

Photos texted ahead of time help us prep for the visit and sometimes speed up scheduling.

02

On-Site Crack Classification

We also check the exterior grading near the crack, since poor drainage is often what caused it in the first place.

03

Written Injection Quote

We explain why we're recommending one material over the other so the choice isn't a black box.

04

Injection & Cure Verification

We check the injection ports after curing to confirm the material fully filled the crack before we consider the job done.

Customer Reviews

Hear From Charleston, SC Customers We've Already Helped

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

"We were selling the house and the inspector flagged a foundation crack. They came out within two days, injected epoxy, and gave us documentation for the buyer's lender."

— Charleston Seller

★★★★★

"They explained why our crack was structural and not just cosmetic, which the previous contractor never bothered to check."

— Charleston Homeowner

★★★★★

"Had two cracks — one needed epoxy, one needed polyurethane. They matched material to each one instead of using the same thing on both."

— Charleston Customer

★★★★★

"Fast, clean work — no mess left behind after the injection ports were patched."

— 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?▼

Active leaks get flexible polyurethane regardless of classification, since stopping water intrusion is the immediate priority.

Will you repair hairline cracks or only large ones?▼

We repair cracks of nearly any size — hairline cracks are often the easiest and cheapest to seal before they widen further.

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?▼

A properly injected crack is unlikely to reopen at the same spot, and our work comes with a written warranty covering exactly that.

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

Don't Wait On Foundation Crack Repair — Call Now

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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Emergency Foundation Crack Repair available now in Charleston, SC 📞 Call +1-866-476-1348
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