Granite Polishing and Resurfacing Old Granite Floors

Granite is tough, but it is not immortal. After ten or fifteen years, a granite floor in a busy home or office can look tired: the shine has gone in walking paths, joints have turned black, there are chips at edges, and sometimes the slabs were never level to begin with. Many owners assume the only answer is to break it out and start again. In most cases, granite polishing and resurfacing on site can bring the stone back at a fraction of the disruption.

Our team at Marble Fixing Flooring does a fair amount of repair and correction work on existing stone, using cutting, refitting and machine polishing. This post explains what resurfacing involves, what results to expect, and when replacement really is the better option.

Why granite loses its shine

Granite is hard, but grit is harder. Sand and fine dust carried in on shoes act like sandpaper, slowly creating micro-scratches that scatter light. Other causes include:

• Harsh acidic cleaners that dull the surface or attack resin used to fill natural pits.
• Wax or coating products that build up and turn cloudy.
• Uneven slabs, where raised edges wear faster and lose polish first.
• Factory polish that was never very deep, especially on cheaper lots.

Polishing vs resurfacing: what is the difference

Light polishing

If the floor is level and only the shine has faded, a light polish using fine diamond pads and a polishing compound can restore gloss. This is relatively quick and needs little water and mess.

Full resurfacing

When there is lippage between slabs, deep scratches, worn walking paths or chipped edges, the surface has to be ground flat first and then brought up through finer stages. This is resurfacing. It takes longer, uses more water and machine time, but it gives a truly flat, uniform floor.

The resurfacing process on site

1. Inspection. We tap slabs to find hollow ones, check cracks, measure lippage and look at the joints.
2. Repairs first. Hollow or cracked slabs are cut out and refitted, chipped edges are filled with colour-matched epoxy, and broken pieces replaced where possible with matching stone.
3. Joint cleaning. Old dark cement joints are raked out and refilled with epoxy or Tenax joint filler matched to the stone.
4. Grinding. Coarse diamond tools remove lippage and deep scratches so the whole surface becomes one plane.
5. Honing stages. Progressively finer diamond pads remove the scratches left by the previous stage. Skipping a stage leaves visible swirl marks.
6. Final polish. Fine polishing pads and compound bring up the gloss.
7. Cleaning and sealing. The slurry is cleaned thoroughly, the floor dried, and a penetrating sealer applied on lighter granites.

What results to expect

A properly resurfaced granite floor should look flat, with joints that blend into the stone and an even shine from wall to wall. Some honest limits:

• Natural pits and open grains in the stone will remain; they can be filled but not removed.
• Very deep chips may still show a slight difference after filling.
• Stains that went deep into a light granite may lighten but not always vanish.
• A poor-quality lot will never polish like a premium one.

Resurfacing counters, steps and edges

Kitchen counters often lose shine near the hob and sink. These can be polished in place with hand machines, with care around the sink and cabinets. Edges that were left rough at the time of fixing can be reprofiled into a neat rounding or bevel. On staircases, worn nosings can be reground and polished, and loose treads refixed before polishing. Grooves for grip can also be added to old steps.

Changing the finish

Resurfacing is also an opportunity to change finish. A polished granite on an outdoor porch that has become slippery can be given a textured, honed or leather-style finish using specific tools. Indoors, an old honed floor can be taken up to a high polish.

When replacement is the better choice

Resurfacing is not always the answer. We suggest replacement when:

• A large share of slabs are hollow or cracked because the original bedding failed.
• The floor levels are badly wrong and cause water to pool, which grinding cannot fix.
• Waterproofing below a wet area has failed and must be redone.
• The stone is very thin and has already been ground several times.

In such cases, a partial replacement with resurfacing of the rest is sometimes a good middle path.

Keeping the shine after resurfacing

A resurfaced floor stays bright far longer if grit is kept out. Put mats at every outside door, fit felt pads under chair and table legs, and switch to a pH-neutral cleaner instead of acid-based floor cleaners. A light maintenance polish every few years, before the floor gets really dull, is easier and quicker than another full resurfacing.

Preparing your home for polishing work

• Clear the rooms of furniture where possible.
• Protect wooden skirting, cabinets and doors from slurry splash.
• Arrange water supply and power points close to the work area.
• Plan for the rooms to be unavailable for the working days plus drying time.

Checklist before booking resurfacing

• Is the problem only shine, or also lippage, chips and dark joints?
• Have hollow and cracked slabs been identified?
• Do you want the same finish or a different one?
• Is sealing included at the end?
• Are spare matching slabs available for repairs?

If your granite floor, counter or staircase looks tired, send a few close-up photos and the approximate area to Hemaram Kumawat on WhatsApp at 9468916422. We will tell you honestly whether polishing, resurfacing or replacement makes sense. See our granite fixing and flooring page, or read about marble polishing and repair if you have marble too.