Inland Steam & Deep-Set Algae
Kendall sits between the swamp and the bay. The heat doesn't leave. It stays hot and wet all night. Granite sucks up this moisture. It stays damp deep inside. This feeds Gloeocapsa magma (black algae).
You see a black skin on the stone. It hides the name.
Searching for headstone cleaning services near me often points to pressure washing. Bad idea. Cold water hits hot stone. The stone snaps. We use industrial grave site cleaning services. We use a biological soak. It goes deep. It kills the algae roots chemically. The black crust falls off. The stone is clean.
Miami Limestone (Oolite) Shift
Kendall is built on rock ridges. The dirt layer is thin. Beneath it is hard Oolite limestone. Rain washes the dirt out.
The monument hits the rock unevenly. It rocks. It tilts. Dirt won't fix it. It washes away. For tombstone repair and restoration, we build a new base. We use crushed gravel. It makes a flat pad over the jagged rock. The stone stops rocking.
Canopy Lichen & Sap
Old parks have big trees. Oaks and Mahoganies drip sap. It catches dust. The shade grows lichen.
Pressure washing ruins the stone face. It blasts away the detail. We use solvents. They melt the hard sap. We use inhibitors to kill the lichen roots. The stone stays safe.
Hard Water Calcium Glaze
Sprinklers use limestone water. It has calcium. The sun dries it. It leaves a white crust.
This hides the shine. You can't scrape it. We use professional cleaning stone gravestones chemistry. A buffered acid mix. It eats the calcium, not the stone. We rinse it. The mirror finish comes back.