Broken Granite Countertop Repair – What Really Happened Under the Sink

When the silicone (caulking) around a sink dries out or peels away, water starts leaking under the countertop. That water doesn’t just disappear — it runs inside and reaches the metal brackets that support the granite from underneath.

Over time, the brackets begin to rust and expand. As the rust grows, it slowly pushes against the stone from the inside. Eventually, this pressure causes the granite to crack, usually in front of the sink.

At the same time, trapped moisture creates the perfect environment for mold and bad smells. Many homeowners notice the odor before they even see the crack — that’s a clear warning sign that water is leaking below.

How We Restored the Countertop

Our restoration process included several careful steps:

• Removed all broken pieces of granite around the sink
• Cut out and replaced the rusted metal brackets
• Cleaned and dried the inside area to eliminate mold and moisture
• Rebuilt and glued the stone pieces back together securely
• Polished and sealed the repaired area to match the rest of the countertop
• Applied new professional silicone around the sink to stop future leaks

The result – the countertop looks brand new again, with solid support and full protection from water damage.

Why Professional Caulking Matters

Many homeowners don’t realize how important proper sink caulking is. It’s not just for looks — it’s the main barrier keeping water out of the stone and preventing expensive repairs later. Professional caulking by iFIX Granite & Marble ensures a perfect seal, strong adhesion, and clean finish that lasts for years.

The project was completed in Glenview, Illinois.