Slate Cleaning, Sealing And Repair in the Greater Milwaukee & SE Wisconsin

Slate Cleaning, Sealing & Repair

Specialized Care for Your Floors, and Surfaces

Slate is a distinctive natural stone valued for its texture, depth, and durability. Its layered structure and cleft surface create a bold, organic look—but also make slate one of the most challenging stones to maintain properly. Using harsh cleaners, incorrect sealers, or aggressive scrubbing can lead to fading, flaking, and permanent surface damage.

Restoria provides professional slate cleaning, sealing, and repair services throughout the Greater Milwaukee & SE Wisconsin area, focused on preserving slate’s natural character while extending its lifespan in both residential and commercial settings.

Professional surface care

makes the difference

Professional Slate Care Services

Our slate services are designed to address real-world problems while respecting the stone’s natural composition. We tailor every project based on slate type, surface condition, and usage.

Our services include:

  • Deep slate cleaning
  • Slate sealing and color enhancement
  • Repair of loose, chipped, or flaking slate
  • Surface stabilization and edge refinement

Ongoing care guidance for long-term protection

Slate Surfaces We Service

We provide expert slate care for a wide range of interior and exterior surfaces, including:

  • Slate floors and entryways
  • Showers and wet areas
  • Fireplace surrounds and hearths
  • Accent walls and decorative features
  • Select outdoor slate installations

Each surface is evaluated individually to ensure the correct cleaning depth, repair method, and sealing system.

Our Slate Cleaning & Restoration Process

Slate requires controlled, stone-specific methods that clean effectively without stripping natural oils or weakening the stone’s layered structure. Unlike smooth stones, slate traps dirt within its clefts and texture, requiring a careful, step-by-step approach.

Our slate cleaning and restoration process may include:

  • Deep cleaning with stone-safe solutions to remove embedded soil, residues, and contaminants
  • Gentle agitation techniques designed to lift debris from textured surfaces without causing flaking
  • Repair and stabilization of loose or damaged slate pieces, addressing minor movement and surface breakdown
  • Edge smoothing and surface refinement to reduce sharp edges and uneven wear
  • Application of penetrating or enhancing sealers for protection and visual balance

Sealers are selected based on the slate type, surface location, moisture exposure, and desired finish—whether maintaining a natural matte appearance or subtly enhancing color depth.

Residential & Commercial Slate Services

We work with homeowners, property managers, builders, and facility managers across the Greater Milwaukee & SE Wisconsin. From private residences to commercial spaces, our slate services are designed to improve appearance, safety, and long-term durability without altering the stone’s natural look.

Why Choose Restoria for Slate?

  • Proven experience with layered and cleft stone surfaces
  • Stone-safe cleaning and repair methods
  • No harsh acids or damaging chemicals
  • Proper sealer selection based on environment and use
  • Trusted local professionals serving the Greater Milwaukee & SE Wisconsin
  • Certified Surface Care PRO Partner

Did You Know?

Slate is a metamorphic stone formed under intense heat and pressure, giving it natural layers. Improper cleaning or sealing can cause those layers to separate—a process known as spalling—which is why professional care is essential for long-term slate preservation.

Frequently Asked Questions

Q. Can damaged slate be repaired, or does it need replacement?
A. In many cases, slate can be repaired. Loose tiles, minor flaking, and uneven areas can often be stabilized and restored without full replacement.

Q. Should slate floors or showers be shiny?
A. Most slate surfaces are best kept matte or low-sheen. High-gloss finishes can create slip hazards and may damage the stone over time.

Q. Do you provide slate care tips after service?
A. Yes. We provide clear, stone-specific care guidance based on industry-recognized best practices through our Caring For It™ resources.

Preserve the Elegance of Your Onyx Surfaces

If your slate surfaces look faded, dirty, or damaged, professional care can restore their natural beauty and prevent further deterioration. Contact Restoria today to schedule expert slate cleaning, sealing, and repair services throughout the Greater Milwaukee & SE Wisconsin area.

Call us at (414) 262-6331

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Let’s get your slate floor and surfaces looking as good as new!

CARING FOR IT™ RESOURCES

Make sure to visit our Surface Care Resources. Tips and articles, digital magazine, downloadable stone and tile care guide and much more.