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Structural or Leaking? Foundation Crack Repair in Lanham, MD, Classified and Fixed

Low-pressure injection bonds cracks from the inside out, often in a single visit.

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

Four Reasons Our Foundation Crack Repair Clients Don't Call Anyone Else

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 Lanham, MD cracks that are currently letting water in.

3

Flat-Rate Injection Pricing

A single crack repair is one of the most predictably priced jobs we do — no surprise scope creep.

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 Lanham, MD
What We Do

What Our Foundation Crack Repair Service Actually Covers

Every Lanham, MD Foundation Crack Repair job starts with an inspection, not a generic package — here's what that typically includes.

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

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

We also check for bowing alongside stair-step cracks, since that combination can point to a bigger structural issue.

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

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 Lanham, MD
How It Works

What Happens After You Call SGP Waterproofing for Foundation Crack Repair

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

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 Lanham, MD Customers We've Already Helped

Top rated local Foundation Crack Repair specialists in Lanham, MD
★★★★★

"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."

— Lanham Seller

★★★★★

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

— Lanham Homeowner

★★★★★

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

— Lanham Customer

★★★★★

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

— Lanham Homeowner

FAQ

Foundation Crack Repair Questions We Hear Every Week

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?▼

Epoxy is better for structural bonding on a non-leaking crack; polyurethane is better for a crack that's actively weeping since it cures even with water present.

How long does crack injection take?▼

Multiple cracks or hard-to-access areas can extend the timeline, which we'll flag in the written quote.

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 Lanham, MD buyers, sellers, and lenders commonly request.

Service Coverage

Proudly Providing Foundation Crack Repair Throughout Lanham and Lanham, MD

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

Reliable Foundation Crack Repair contractor in Lanham, MD by SGP Waterproofing
Affordable Foundation Crack Repair solutions in Lanham, MD
Trusted Foundation Crack Repair service in Lanham, MD - SGP Waterproofing

Zip codes we serve in Lanham, MD: 20706

Lanham, MD'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 Lanham, MD

Lanham is an unincorporated community and census-designated place in Prince George's County, Maryland. As of the 2020 United States Census it had a population of 11,282. The New Carrollton station (the terminus of the Washington Metro's Orange Line) as well as an Amtrak station are across the Capital Beltway in New Carrollton, Maryland. Doctors Community Hospital is located in Lanham.

Zip Codes in Lanham, MD that we also serve: 20706

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