Slate Cleaning and Sealing

A FEW FACTS ABOUT SLATE

True black and dark gray slate is naturally water-resistant and non-porous, making it an ideal material for wet environments such as roofs, bathrooms, kitchens, and pool surrounds. It is also resistant to mold, mildew, and bacteria growth. On the other hand, other colors of slate can be very brittle, soft, and absorbent due to their different composition. These types of slate need to be carefully looked after since they crumble and are acid-sensitive.

DEEP CLEANING THAT ACTUALLY WORKS

We use professional-grade scrubbing machines, specialist stone cleaning solutions, and hand tools for grout lines and detailed work. The cleaning agents we use are specifically formulated for natural stone: they're powerful enough to lift years of ingrained grime without damaging the stone itself.

In practice, this means removing:

  • Layers of built-up grease and cooking residue

  • Old sealers that have broken down, discolored, or turned tacky

  • Efflorescence and mineral deposits

  • The general accumulation of foot traffic dirt, dust, and household cleaning products

grout sits lower than the tile surface, and accumulates grime at a rate that makes the surrounding stone look clean by comparison. Grout lines get particular attention during our cleaning process.

SEALING: CHOOSING THE RIGHT PRODUCT FOR YOUR SLATE

There's no single "best" slate sealer. The right choice depends on the type of slate, the room it's in, the look you want, and the level of protection required.

We work with a range of professional-grade sealers and will talk you through the options honestly:

Impregnating (penetrating) sealers work below the surface, filling the stone's pores without forming a film on top. They're invisible when dry — the slate looks exactly as it did, just better protected. Water and oil bead on the surface rather than soaking in. These are typically the preferred choice for floors that see regular foot traffic.

Color-enhancing sealers do what the name suggests: they deepen the natural tones of the slate, restoring that rich, wet-stone look that fades over time. For floors where the original color has been lost to years of soiling and a failed sealer, the transformation can be striking. We'll show you a sample on a small area so you can see the effect before we commit to the whole floor.

Topical sealers form a protective layer on the surface and can add a subtle sheen or a more pronounced satin finish, depending on the product. They're more visible than impregnating sealers and require a little more maintenance over time, but they offer excellent surface protection and can significantly enhance the appearance of older or more textured slate.

Whatever we apply, a properly sealed interior slate floor will repel everyday spills, resist ingrained dirt, protect the grout from staining, and stay looking better for longer. It also makes your day-to-day cleaning considerably easier — which is, ultimately, what a well-maintained floor should do.

Get a Free Quote for Your Interior Slate

We provide expert Slate Cleaning and Sealing in Charlottesville, Earlysville, Crozet, Keswick, Albemarle, Orange, Greene, Madison, Culpeper and surrounding areas.

We don't price jobs without seeing them. Slate tiles vary too much — in size, condition, type of stone, and what they've been through.

Get in touch and we'll arrange a convenient time to come and assess your floor. We'll tell you honestly what we find, explain what the work involves, and give you a clear, no-obligation quote. No hard sell. No vague estimates. Just straightforward advice from people who work with stone every day.

Call us at (540) 614-9112 or use our contact form — we'll be back in touch promptly to arrange a time that suits you.