If your granite countertop has lost its showroom gleam, learning how to polish granite can restore that mirror finish without the cost of a stone refinishing service. Dull spots, water rings, and a faded surface are usually not permanent damage — they are signs the polish and seal have worn thin. With the right products and a careful hand, you can bring the shine back in an afternoon.
Part of our Countertops guide — explore the full guide →
This guide covers everything from a deep clean to the final seal, plus the maintenance habits that keep granite looking wet and glossy year-round.
- Why Granite Loses Its Shine
- What You'll Need
- Step 1: Deep Clean the Surface
- Step 2: Treat Stains and Hard-Water Spots
- Step 3: Apply the Polishing Compound
- Step 4: Buff to a Shine
- Step 5: Seal the Granite
- Maintaining the Finish
- Polished vs. Honed Granite
- How Often to Polish and Seal
- Products to Avoid on Granite
- When to Call a Professional
Why Granite Loses Its Shine
Granite is one of the hardest countertop materials, but its polished surface is not indestructible. Acidic cleaners, hard-water deposits, and abrasive scrubbing slowly etch and dull the stone. The factory polish also wears down over years of daily use. The good news is that most of what looks like permanent dullness is surface haze you can buff out and re-seal.
What You’ll Need
Assemble your supplies before starting so you can work in one continuous session:
- pH-neutral stone cleaner or a few drops of dish soap in warm water
- Several clean microfiber cloths
- A commercial granite polishing compound or polishing powder
- A granite sealer rated for natural stone
- Baking soda for stubborn stains
- Rubber gloves and a soft buffing pad
Step 1: Deep Clean the Surface
Clear the counter completely. Wipe it down with a pH-neutral cleaner or warm soapy water and a microfiber cloth, then rinse and dry thoroughly. Never use vinegar, lemon, ammonia, or generic bathroom cleaners — their acids etch granite and make the dullness worse. For grease buildup, a paste of baking soda and water left for a few minutes lifts the grime before you wipe it away.
Step 2: Treat Stains and Hard-Water Spots
Address blemishes before polishing, since polish over a stain just seals it in. For oil-based marks, make a poultice of baking soda and water to a peanut-butter consistency, spread it over the stain, cover with plastic wrap, and let it draw out the oil overnight. Hard-water rings usually respond to a stone-safe cleaner and gentle buffing with a damp cloth.
Step 3: Apply the Polishing Compound
Shake or stir your polishing product, then apply a thin, even layer with a clean cloth. Work in small sections of about two square feet so the compound does not dry before you buff it. Follow the manufacturer’s directions closely, because powder and cream polishes are used differently — powders are typically dampened and worked in, while cream polishes wipe on directly.
Step 4: Buff to a Shine
Using a dry microfiber cloth or a soft buffing pad, work the polish in tight circular motions with steady, light pressure. Keep buffing until the surface comes up glossy and the haze disappears. Overlap your sections so the finish stays uniform across the whole counter. For large kitchen islands, a variable-speed buffer with a felt pad on a low setting speeds things up, but hand buffing works fine for standard counters.
Step 5: Seal the Granite
Polishing restores shine, but sealing is what protects the stone from stains and moisture. Test whether your granite needs sealing first: drop a small puddle of water on the surface and wait 15 minutes. If it darkens or soaks in, the stone needs sealing. Apply the sealer in an even coat, let it penetrate for the time listed on the label, usually 5 to 15 minutes, then wipe away every bit of excess before it dries to a film. Most granite benefits from resealing once or twice a year.
Maintaining the Finish
Daily habits do more for granite than any single polish session. Wipe spills promptly, especially anything acidic like wine, citrus, or tomato sauce. Use coasters under glasses and trivets under hot pans. Clean only with a pH-neutral stone cleaner or mild soap and water. Avoid scouring pads and powders that scratch the polished surface. With this routine, you may only need to repolish once a year or less.
Polished vs. Honed Granite
Before you chase a high gloss, make sure that is the finish your counter is supposed to have. Granite comes in polished, honed, and leathered finishes. A polished surface is glossy and reflective and responds well to the steps above. A honed finish is intentionally matte and smooth, so buffing it to a shine would actually work against the look you bought. Leathered granite has a subtle textured sheen. If your counter is honed or leathered, focus on cleaning and sealing rather than high-gloss polishing, and use products formulated for that finish so you do not create shiny patches where you rubbed hardest.
How Often to Polish and Seal
Set a simple maintenance rhythm so the stone never gets a chance to look tired. For most kitchens, a light polish once or twice a year keeps the shine even, while heavily used island tops may want it a bit more often. Sealing frequency depends on the stone’s density: test with the water-drop method every six months and reseal whenever the water begins soaking in rather than beading. Lighter, more porous granites tend to need sealing more often than dark, dense ones. Keeping a small bottle of stone cleaner at the sink makes daily wipe-downs effortless, which does more to preserve the finish than any single polishing session.
Products to Avoid on Granite
Knowing what to keep away from the stone is as important as knowing what to use. Steer clear of vinegar, lemon juice, and other acids, which etch the polished surface and create dull spots. Skip generic glass cleaners, bleach, and ammonia, which can break down the sealer over time. Avoid abrasive powders, scouring pads, and rough sponges that leave fine scratches. Even some “natural” cleaners are acidic, so read labels and choose only products specifically labeled safe for natural stone. Sticking to pH-neutral cleaners and stone-rated polishes protects both the shine and the seal you work so hard to maintain.
When to Call a Professional
DIY polishing handles dullness, light hazing, and worn seals beautifully. Deep scratches, chips, etched gouges, or a cracked seam are jobs for a stone restoration pro, who uses diamond abrasives and resin fills you cannot replicate at home. Professional refinishing typically runs $200 to $500 per counter depending on size and condition. For routine shine, though, the steps above will keep your granite looking like the day it was installed.
