Self-Leveling vs. Floor Patch: When to Use Each One Before Installing New Floors

Are uneven floors ruining your renovation plans before the new flooring even goes in?

Before installing vinyl, laminate, hardwood, or engineered flooring, the condition of your subfloor is critical. At Teos Flooring, one of the most common questions we get from homeowners and property managers in Massachusetts and New Hampshire is:

“Should I use self-leveling compound or just a floor patch?”

The right choice can mean the difference between a flawless, long-lasting floor—or future cracks, gaps, and costly repairs.

Let’s break it down in simple terms.

What Is Self-Leveling Compound?

Self-leveling compound (also called self-leveler) is a liquid-like material designed to flow and spread evenly across the floor, creating a smooth and flat surface.

When You Should Use Self-Leveling:

• When the floor is uneven across large areas

• If the subfloor has dips, slopes, or waves

• Before installing vinyl plank, luxury vinyl tile (LVT), laminate, or engineered flooring

• When installing flooring over concrete slabs or old subfloors

• If height differences exceed ¼ inch over several feet

Why It Matters:

Many modern flooring products require a flat subfloor to meet manufacturer warranties. Self-leveling ensures your new floor locks properly, looks great, and lasts for years.

What Is Floor Patch?

Floor patch (or patching compound) is thicker and used for small, targeted repairs, not full leveling.

When You Should Use Floor Patch:

• Small cracks or holes

• Nail or screw depressions

• Minor low spots

• Isolated imperfections

• Quick fixes before flooring installation

Important Note:

Floor patch does NOT level an entire floor. It’s a repair tool, not a leveling solution.

Self-Leveler vs Patch: The Simple Rule

👉 Large uneven areas = Self-Leveling Compound👉 Small defects or touch-ups = Floor Patch

Using patch where self-leveler is required often leads to:

• Clicking or shifting planks

• Gaps between boards

• Premature wear

• Voided flooring warranties

Local Experience You Can Trust

We’ve prepared thousands of subfloors across Massachusetts and New Hampshire, from older homes with uneven framing to concrete basements that needed full leveling before vinyl installation.

Recently, we completed a vinyl plank installation in a multi-family property where improper patching had failed before. After applying professional self-leveling compound, the new floors came out perfectly flat, quiet, and durable—and the client hasn’t had an issue since.

Why Proper Subfloor Prep Saves You Money

✔ Better-looking floors✔ Longer lifespan✔ No squeaks or movement✔ Protects your flooring investment✔ Meets manufacturer installation standards

Skipping proper leveling is one of the most expensive mistakes in flooring installation.

CTA – Get Expert Help Before You Install

Not sure if your floor needs self-leveling or just a patch?

📞 Call us now at (857) 888-2973 for a free flooring consultation.🏠 Based in Massachusetts and New Hampshire – we come to you!🔗 Visit www.teosflooring.com to schedule your estimate.

Your dream floor starts with the right foundation. Save this article if you’re planning a renovation—and call the pros before you install.

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