How to Refinish Stained Terrazzo?

How to Refinish Stained Terrazzo?

Refinishing stained terrazzo surfaces requires a delicate balance of precision, expertise, and the proper techniques. With its timeless elegance and durability, Terrazzo can be spoiled by stains over time, diminishing its aesthetic appeal. In the following discussion, the art of restoring stained terrazzo and how to refinish stained Terrazzo to its former glory is discussed. Everything is explored, from thorough cleaning and targeted stain removal solutions to advanced grinding, honing, and polishing techniques. However, experts like Fusso Flooring will equip you with the knowledge and strategies needed to achieve stunning results in terrazzo refinishing.

  1. Cleaning

Proper cleaning is essential to prepare the terrazzo surface for refinishing. Start by sweeping or vacuuming the surface to remove loose dirt and debris. Then, use a neutral pH cleaner or a specialized terrazzo cleaner diluted with water according to the manufacturer’s instructions. Apply the cleaner using a mop or sponge, working in sections and scrubbing gently to loosen any embedded dirt or grime. Rinse the surface thoroughly with clean water to remove any residue, and allow it to dry completely before proceeding to the next step.

  1. Stain Removal Solutions

A baking soda and water plaster can be effective for mild stains that haven’t penetrated the terrazzo surface. Alternatively, you can use a commercial stain remover formulated explicitly for terrazzo. Apply the stain remover to the stained areas, ensuring they are completely covered. Cover the treated areas with plastic wrap to prevent the plaster from drying out, and let it sit for 24-48 hours to allow the stain to be absorbed. After the designated time, remove the stain remover using a clean cloth or sponge, and rinse the area thoroughly with water.

  1. Grinding

When surface cleaning and stain removal solutions are insufficient to address deep-seated stains or imperfections, grinding the top layer of the terrazzo may be necessary. This process involves using a floor grinder with diamond abrasive pads. The Terrazzo Contractor removes the stained or damaged surface layer and exposes fresh terrazzo underneath. Grinding should be performed by trained professionals with the expertise and equipment to achieve the desired results without damaging the underlying terrazzo.

  1. Honing

Following the grinding process, honing is performed to smooth out any rough spots and refine the surface texture of the terrazzo. This is achieved using progressively finer grit diamond pads and a floor buffer. The honing process restores the terrazzo’s natural shine and prepares it for the final polishing stage.

  1. Polishing

 Polishing is the final step in the refinishing process and is essential for enhancing the shine and luster of the terrazzo surface. Polishing compounds are applied to the honed surface, and a floor buffer equipped with polishing pads is used to buff the terrazzo to a high gloss finish. Multiple passes with increasingly finer polishing pads may be necessary to achieve the desired level of shine.

  1. Sealing

To protect the newly refinished terrazzo surface from future staining and damage, it’s essential to apply a suitable sealer. Penetrating or topical sealers designed explicitly for terrazzo are available, and it’s important to carefully follow the manufacturer’s instructions for application and curing times. Sealing helps to maintain the terrazzo’s appearance and prolong its lifespan by creating a protective barrier against spills, stains, and wear.

  1. Maintenance

Once the terrazzo has been refinished, regular maintenance is vital to preserving its beauty and durability over time. This includes regularly sweeping or vacuuming the surface to remove dirt and debris and periodic damp mopping with a neutral pH cleaner to remove any surface residues. Terrazzo Company in North York avoids harsh or abrasive cleaners, which can damage the sealer and dull the terrazzo’s shine.

  1. Professional Restoration

In cases where the terrazzo surface is severely stained, damaged, or in need of extensive repair, it may be necessary to enlist the services of a professional terrazzo restoration company. These professionals have the expertise, specialized equipment, and techniques to tackle even the most challenging restoration projects. Professional restoration services may include deep cleaning, stain removal, repair of cracks or chips, and overall rejuvenation of the terrazzo surface.

  1. Color Matching and Patching

If the staining or damage to the terrazzo has caused permanent discoloration, color matching and patching techniques may be necessary. It will restore the surface to its original appearance. This involves carefully blending epoxy resin with pigment to match the color of the surrounding terrazzo and filling in any damaged areas or voids. Once the epoxy resin has cured, the patched areas can be honed and polished. They integrate them with the surrounding surface, assuring a uniform and aesthetically pleasing finish.

  1. Enhancing the Finish

While the previous steps focus on restoring the terrazzo surface to its original shine and beauty, some homeowners enhance the finish. It adds durability and aesthetics. One standard method is applying a wax or polish formulated explicitly for terrazzo surfaces. This additional layer can protect against wear and tear while imparting a glossy sheen to the terrazzo. Application methods vary but typically involve spreading the wax or polish evenly across the surface using a clean, lint-free cloth or mop. Allow the product to dry completely per the manufacturer’s instructions before buffing the surface to a high shine.


Refinishing stained terrazzo is a multi-faceted process that demands attention to detail and a systematic approach. Following the outlined techniques thoroughly addresses the question of how to refinish stained Terrazzo. It includes thorough cleaning, targeted stain removal, precise grinding, honing, polishing, and proper sealing and maintenance. You can effectively restore the luster and beauty of your terrazzo surfaces. Whether you’re dealing with minor blemishes or significant discoloration, the key lies in understanding the unique characteristics of terrazzo.