Stone Diamond Grinding

Precision grinding for perfectly level and rejuvenated natural stone floors

Diamond grinding is one of the most effective and advanced methods for restoring natural stone floors that have become scratched, uneven, dull or worn over time. Using industrial diamond-impregnated pads and specialised planetary machines, we remove the upper layer of damage and create a smooth, level and uniform surface ready for honing, polishing or sealing. Stone Guru provides professional diamond grinding services for marble, terrazzo, travertine, limestone and granite floors across London and the surrounding counties.

What is diamond grinding?

Diamond grinding is a restoration technique that uses extremely hard, precisely engineered diamond abrasives to mechanically resurface the stone. This process removes lippage, deep scratches, etching marks, traffic wear and imperfections that cannot be eliminated through polishing alone. The result is a fresh, clean stone surface that can be honed or polished to the desired finish.

Why diamond grinding is essential for stone floors

Over time, natural stone floors experience wear from foot traffic, cleaning chemicals, spills and settling of the subfloor. Even small variations in tile height can create unevenness known as lippage, which affects both appearance and safety. Polishing without grinding cannot correct these structural issues. Diamond grinding resolves them by:

- Levelling tiles and eliminating lippage - Removing scratches, stains and dull patches - Erasing etching and surface erosion - Preparing the stone for high-gloss polishing - Restoring colour clarity and uniform reflection

This approach is ideal for floors that have not been restored in many years or have suffered heavy use in commercial environments.

Our professional diamond grinding process

1. Detailed assessment – We inspect the floor to determine the type of stone, hardness, level of damage and the amount of grinding required. Each material reacts differently to abrasives, so a tailored approach is essential.

2. Heavy-duty diamond grinding – Using a series of diamond metal-bond abrasives, we remove the damaged surface layer and level the stone. Depending on the floor’s condition, multiple passes may be required.

3. Honing and refinement – After grinding, we transition to finer diamond resin pads to remove grinding marks and prepare the stone for polishing. This stage produces a smooth, matte or satin finish.

4. Polishing (optional) – For clients who prefer a high-gloss appearance, we continue with progressively finer abrasives until achieving a reflective, mirror-like polish.

5. Professional sealing – To protect the newly restored surface, we apply a high-quality stone sealer that enhances durability and improves resistance to staining and moisture.

Stone types suitable for diamond grinding

Our diamond grinding services cover a wide range of natural and engineered stones, including:

- Marble - Travertine - Terrazzo - Limestone - Granite - Concrete and microcement (where applicable)

Each material requires specific abrasives and machine speed adjustments, all carefully selected by our trained technicians.

When should you choose diamond grinding?

Diamond grinding is recommended when the floor shows moderate to severe surface issues, such as uneven tiles, deep scratches, heavy staining, old coatings, or loss of shine due to years of wear. It is also the best choice when you want a completely flat, monolithic look without tile edges or height differences. Many clients request diamond grinding prior to full polishing and sealing for a long-lasting, premium finish.

Advanced machines and expertise

We work with high-performance grinding systems from brands such as Hypergrinder and RAKU, allowing us to achieve outstanding accuracy and consistency. Combined with years of experience in stone restoration, our diamond grinding service delivers results that significantly improve both the appearance and lifespan of your stone floors.

Diamond grinding services in London

Based in London, Stone Guru provides diamond grinding for residential properties, commercial buildings, retail units, hotels, offices and public spaces. Our team ensures minimal disruption, clean working practices and a flawless finish tailored to your expectations.

If your stone floor is uneven, scratched or lacking clarity, diamond grinding is the most reliable method to restore it. Contact us to book an inspection or to discuss your project in more detail.