Natural Stone Restoration

Professional Restoration Process

Professional stone restoration is a multi-step process that requires specialized equipment, diamond abrasives, and expertise. The specific steps depend on the stone type and the extent of the damage.

• 1. Assessment and Preparation: The professional will evaluate the stone, identify the type of damage (scratches, deep etching, lippage), and determine the appropriate restoration plan. The surrounding areas are protected to prevent damage from water and slurry.
• 2. Grinding (Lippage Removal): If the stone tiles are uneven (lippage) or have deep scratches, the surface is ground down using heavy-duty floor machines equipped with coarse diamond abrasive pads. This step flattens the floor and removes the deepest damage.
• 3. Honing: This step uses progressively finer diamond abrasives to smooth the stone surface, removing the scratches left by the grinding process. Honing can also be the final step if a matte or satin finish is desired.
• 4. Polishing: To achieve a high-gloss finish, the stone is polished using very fine diamond abrasives and specialized polishing powders or compounds. This process restores the stone's natural shine and clarity.
• 5. Sealing: Once the desired finish is achieved and the stone is thoroughly cleaned and dried, a high-quality impregnating sealer is applied to protect the newly restored surface from future staining.

Cost of Restoration

The cost of professional natural stone restoration varies widely based on several factors.

• Extent of Damage: Light honing and polishing will cost significantly less than deep grinding required to remove lippage or severe damage.
• Type of Stone: Harder stones like granite require more time and specialized diamonds to restore than softer stones like marble or travertine, generally making granite restoration more expensive.
• Size of the Area: Costs are typically calculated per square foot. Larger areas may have a lower cost per square foot, but the overall project cost will be higher.
• Accessibility: Hard-to-reach areas, stairs, or small spaces that require hand tooling will increase the labor cost.
• Average Costs: While prices vary by region, basic polishing might range from $2 to $5 per square foot, while full restoration involving grinding and lippage removal can range from $5 to $15 or more per square foot.

When is Restoration Needed?

Knowing when to call a professional for restoration can save you time and prevent further damage from ineffective DIY attempts.

• Loss of Shine: When the stone has lost its luster and routine cleaning or polishing products no longer restore the shine.
• Deep Scratches: If scratches are deep enough to catch your fingernail, they cannot be buffed out and require professional grinding.
• Severe Etching: Extensive or deep etch marks that feel rough to the touch or cover large areas (like a whole countertop) need professional honing.
• Uneven Tiles (Lippage): If the edges of the tiles are uneven, creating a tripping hazard or making cleaning difficult, grinding is necessary to flatten the surface.
• Stubborn Stains: If poultice methods have failed to remove deep-seated stains, a professional may be able to draw them out or grind past them.
• Pre-Sale Preparation: Restoring natural stone floors or countertops can significantly increase the appeal and value of a home before putting it on the market.

Tips

• Always hire a qualified and experienced stone restoration professional. Ask for references and examples of their previous work.
• Ensure the professional uses wet grinding techniques to minimize dust.
• Discuss the desired finish (honed vs. polished) before the work begins.
• After restoration, follow the professional's advice on proper maintenance and cleaning products to prolong the life of the new finish.