Foundation Crack Repair Glen Head NY

Stop Foundation Cracks Before They Spread

Professional crack injection and structural repairs that actually last, protecting your Glen Head home’s value.

A cracked concrete foundation beneath a brick wall near a downspout, with dry grass, mulch, and a shrub nearby.

Hear About Us

A person wearing a light colored work uniform and helmet is kneeling outdoors, writing on a clipboard, inspecting the exterior of a building near a foundation wall.

Professional Foundation Repair Services

Your Foundation Problems Actually Get Solved

You’re not just patching cracks – you’re getting real structural integrity back. When we finish your foundation crack repair, water stays out, your basement stays dry, and those stress-inducing cracks stop growing.

No more checking the basement after every storm. No more musty smells creeping upstairs. No more wondering if that crack is going to turn into a major structural problem.

Your foundation gets the permanent repair it needs, and you get the peace of mind that comes with knowing your largest investment is protected. That’s what happens when foundation repair is done right the first time.

Glen Head Foundation Repair Contractors

We Know Long Island Foundations

Diamond Masonry & Waterproofing LLC has been handling foundation repairs across Nassau County for years. We understand how Long Island’s clay soil and freeze-thaw cycles affect your foundation differently than other regions.

You’re not getting a generic repair approach. You’re getting contractors who know exactly why foundations crack in Glen Head and how to fix them permanently. Licensed, insured, and focused on getting your foundation problems solved right.

We’ve seen every type of foundation issue that affects homes in this area, and we know which solutions actually work long-term.

A person wearing a white hard hat and work clothes inspects the foundation of a building, closely examining or measuring a crack in the concrete wall near a wooden structure.

Foundation Crack Repair Process

Here's Exactly How We Fix It

First, we inspect your foundation cracks to determine the cause and extent of the damage. Not all cracks are the same, and the repair method depends on what’s actually happening with your foundation.

For most foundation cracks, we use professional crack injection techniques. This involves cleaning the crack, injecting specialized polyurethane or epoxy materials under pressure, and ensuring complete penetration to create a permanent seal.

Structural cracks get different treatment – we address the underlying cause, stabilize the foundation, then seal the crack. You’ll see exactly what we’re doing and why, because transparency matters when you’re trusting someone with your foundation repair.

A person wearing an orange hard hat and yellow gloves crouches down, using a brush to apply material to the base of a concrete wall at a construction site.

Ready to get started?

Explore More Services

About Diamond Masonry & Waterproofing

Get a Free Consultation

Complete Foundation Repair Solutions

What's Included In Your Repair

Your foundation crack repair includes a thorough assessment of all visible foundation issues, not just the obvious cracks. We check for water infiltration patterns, structural movement, and potential problem areas that could cause future issues.

The repair itself uses professional-grade materials designed for Long Island’s specific soil and weather conditions. Crack injection, structural reinforcement, waterproofing – whatever your foundation needs to be permanently fixed.

You get a detailed explanation of what we found, what we’re fixing, and what you can expect going forward. Plus written documentation of the work completed, because you should know exactly what was done to your foundation.

A large vertical crack runs through a concrete foundation wall beneath a wooden structure, with soil, grass, and a black pipe visible at the base.
Any crack wider than a quarter-inch, cracks that are growing, or cracks that allow water infiltration need professional attention. Horizontal cracks are particularly concerning as they often indicate structural pressure. If you can see daylight through a crack, water is getting in, or the crack has grown since you first noticed it, don’t wait. Even smaller cracks can become major problems if they’re not properly sealed, especially with Long Island’s freeze-thaw cycles that expand and contract foundation materials.
Crack injection uses pressurized polyurethane or epoxy to completely fill and seal foundation cracks from the inside out. This creates a permanent, flexible seal that moves with your foundation. Surface patching or caulking only covers the problem temporarily – water will find its way through eventually. Crack injection actually bonds with the concrete and becomes part of your foundation structure. For structural cracks, we combine injection with reinforcement techniques to address both the crack and the underlying cause.
Most foundation crack repairs take 4-8 hours depending on the number and size of cracks. Simple crack injection can often be completed in a single day. More complex structural repairs might take 1-2 days if we need to address underlying issues like drainage or soil settlement. The actual injection process is relatively quick – most of the time goes into proper preparation, cleaning, and ensuring complete penetration of the repair materials. We’ll give you a realistic timeline during the initial assessment.
Professional crack injection creates a complete water barrier when done correctly. The materials we use are specifically designed to stop water infiltration permanently. However, if you have multiple foundation issues or poor drainage around your home, crack repair might be part of a larger waterproofing solution. We’ll assess your entire foundation and drainage situation to determine if crack repair alone will solve your water problems, or if additional waterproofing measures are needed to keep your basement completely dry.
Foundation crack repair costs depend on the size, location, and type of cracks you’re dealing with. Simple crack injection typically runs less than major structural repairs that require reinforcement. We provide detailed written estimates after assessing your specific situation – no surprises or hidden costs. The investment in proper foundation repair is almost always less expensive than dealing with water damage, mold remediation, or major structural problems later. We’ll explain exactly what needs to be done and why, so you can make an informed decision.
Yes, we warranty our foundation crack repair work because we use professional-grade materials and proven techniques. The specific warranty terms depend on the type of repair and materials used, but you’ll have written documentation of what’s covered. If a properly repaired crack fails due to our workmanship or materials, we’ll fix it. Keep in mind that new foundation movement or settling can cause new cracks – that’s different from a repair failure. We’ll explain what’s covered and what could cause new issues so you know exactly what to expect.