Granite Cleaning, Sealing & Repair

Granite Cleaning, Sealing & Repair in Minneapolis & St. Paul, MN

Keep Your Granite Countertops Looking Flawless

Granite has a reputation for being virtually indestructible — and compared to marble or limestone, it really is tougher. But “tough” doesn’t mean maintenance-free.

Over time, even granite loses its polish, develops staining, and without proper sealing, starts absorbing everything it comes into contact with.

At Classic Marble Restoration, we provide professional granite cleaning, sealing, and repair services for homeowners and businesses throughout Minneapolis and St. Paul. Whether your granite countertops have lost their shine, your granite floors are looking dull and neglected, or you have chips and cracks that need proper repair — we’ll get your granite back to looking its best, and keep it that way.

Your granite works hard every day, give it the professional care it deserves.

The Granite Myth — Why "Low Maintenance" Doesn't Mean "No Maintenance"

Granite gets sold as the indestructible countertop — and homeowners across the Twin Cities buy into it. Then a few years in, the shine is gone, there are stains that won’t budge, and the surface that was supposed to last forever starts looking tired and dull. What happened?

Granite is a dense, hard igneous rock — significantly tougher than marble, limestone, or travertine. It doesn’t etch from acids the way softer stones do, and it resists scratching far better. But it is still a natural stone, which means it is still porous. And a porous surface without proper sealing will absorb oils, moisture, and staining agents — especially in the kitchen, where cooking oils, coffee, wine, and grease are constant companions.

The other thing that happens with granite — and this surprises a lot of people — is that the original factory polish wears down over years of daily use. What looks like staining is sometimes just surface dullness from wear. Either way, professional cleaning, sealing, and where needed, re-polishing, restores granite to the way it looked when it was new.

Tip: To learn more about caring for your granite surfaces day-to-day, visit the Caring For It™ section on our site. You’ll find tips and articles, and you can download our Stone and Tile Care Guide.

Granite Problems We See Every Day

Granite may be the most forgiving natural stone — but it’s not immune to problems. These are the issues we most commonly address:

Loss of polish and shine — the factory finish has worn down from daily use, cleaning, and foot traffic, leaving granite looking dull and flat
Staining — oils, grease, wine, coffee, and other kitchen staples have penetrated an unsealed or under-sealed surface and left dark, discolored patches
Hard water spots and mineral deposits — white, cloudy buildup on granite countertops and bathroom surfaces from Minnesota’s mineral-heavy water
Surface scratches — fine scratches from abrasive cleaners, cutting directly on the stone, or years of everyday use
Chips and cracks — from dropped pots, heavy impacts, or stress fractures, most commonly on countertop edges
Worn or failed sealer — granite that was once sealed but hasn’t been maintained, leaving the stone vulnerable to staining and moisture
Dull, hazy appearance — often mistaken for permanent staining but actually a combination of surface wear and soap or cleaner residue buildup
Uneven sheen — areas of the countertop or floor that look different from each other due to uneven wear or patchy sealer application

Most of these are very correctable and correcting them before they get worse is always the smarter, more cost-effective choice.

Granite Surfaces We Clean, Seal & Repair

Granite is one of the most widely used natural stones in Twin Cities homes and commercial spaces — and we work with it in all its forms.

We service granite in:

Kitchen countertops — the most common granite surface and the one that takes the most daily abuse from cooking, cleaning, and spills
Kitchen islands and breakfast bars — high-use prep and gathering surfaces that need both deep cleaning and proper sealing
Bathroom vanity tops and countertops — where hard water, soap, and cosmetics create stubborn buildup and staining
Shower walls and floors — granite in wet environments needs the right sealer to prevent moisture intrusion
Granite floors — in entryways, kitchens, bathrooms, and commercial spaces where polish wears down over time
Fireplace surrounds — where heat, soot, and cleaning products affect both appearance and surface integrity
Exterior granite surfaces — steps, pillars, and outdoor countertops that face Minnesota’s weather year-round
Commercial granite — reception desks, lobby floors, restaurant surfaces, and retail spaces that need professional-level care and maintenance

Is your granite looking dull, stained, or damaged?

Granite problems are almost always fixable — and the sooner you address them, the easier and less expensive the fix. Call (763) 784-2483 or request a free estimate and let’s take a look together.

Professional Granite Cleaning, Sealing & Repair — What It Involves

Unlike softer stones that need honing and polishing as a regular part of maintenance, granite care is primarily about deep cleaning, proper sealing, and targeted repair.

Here’s how we approach it:

Deep Cleaning
We start with a thorough professional cleaning — removing soap scum, hard water deposits, oils, and residue that everyday cleaning products leave behind or can’t touch. This step alone often transforms the appearance of granite surfaces that have looked dull for years.
Polishing & Surface Restoration
Where the granite finish has worn down from years of use, we restore the surface polish to bring back the original depth and shine. This is done carefully and precisely — granite responds differently to polishing than softer stones, and the technique matters.
Chip & Crack Repair
Chips on granite countertop edges and corners, one of the most common granite problems we see can be filled and color-matched so repairs are virtually invisible. Cracks are assessed for structural implications and repaired accordingly. We’ll always be upfront about what’s achievable with your specific damage.
Professional Sealing
This is arguably the most important thing you can do for granite. We apply a professional-grade impregnating sealer that penetrates the stone and creates an invisible barrier against moisture, oils, and staining agents — without changing the look or feel of the granite. For granite that needs an added visual boost, we can also discuss an enhancing sealer that deepens the stone’s natural color and richness.
Final Inspection
We go over every inch of the surface with you at the end because the job isn’t done until you’re satisfied with the results.

How Often Does Granite Actually Need to Be Sealed?

This is one of the most searched granite questions out there — and the honest answer is: it depends on your granite.

Granite varies enormously in porosity. Some granites are so dense they barely need sealing at all. Others are surprisingly porous and need annual attention. The simple water test tells you a lot — put a few drops of water on your granite and watch what happens. If the water beads up and sits on the surface, the sealer is working. If it darkens the stone within a few minutes, the granite is absorbing it — and it’s time to reseal.

As a general guideline for most granite countertops in active Twin Cities kitchens:

Every 1–2 years for lighter-colored, more porous granites
Every 3–5 years for denser, darker granites

Professional sealing uses better products and application methods than DIY options and it lasts significantly longer. We’ll assess your granite’s current sealer performance during our estimate visit and give you an honest recommendation.

Did You Know?

Granite does not etch from acidic spills the way marble and limestone do but it absolutely will stain if it isn’t properly sealed, especially from oils and dark liquids
The water bead test is the simplest way to check if your granite sealer is still working if water soaks in rather than beading up, it’s time to reseal
Darker granite stains are often just cooking oil that has soaked into an unsealed surface professional cleaning and sealing can frequently remove or significantly reduce these
Many granite countertop chips and cracks that homeowners think require full slab replacement can be professionally repaired for a fraction of the cost
Abrasive cleaning pads and powders are one of the most common causes of dulling on granite countertops they scratch the polish off over time without you even realizing it

Trusted Granite Care Experts Throughout the Twin Cities

Knowing granite, its density, its porosity, how it responds to cleaning and polishing, and which products actually protect versus which ones cause long-term damage is what makes the difference between professional results and a surface that never quite looks right.

Here’s why homeowners and businesses throughout Minneapolis and St. Paul trust Classic Marble Restoration with their granite:

Serving Minneapolis & St. Paul since 1992 — we’ve worked with granite in every form, in every kind of space
We know the difference between a surface that needs cleaning, one that needs sealing, and one that needs actual restoration and we won’t oversell you on work that isn’t necessary
Skilled chip and crack repair with color-matched results that hold up over time
Professional-grade sealers that outperform anything available at a hardware store
Experience in residential kitchens, bathrooms, and floors as well as commercial properties throughout the Twin Cities

Classic Marble Restoration is a Vetted and Certified Surface Care PRO Partner – meaning our licensing, insurance, and professional training have been independently verified through Surface Care PROS. When you trust us with your surfaces, you’re working with a team held to the highest standards in the surface care industry.

Keep Your Granite Looking Sharp Between Professional Visits

The good news about granite is that it’s genuinely one of the easier natural stones to maintain day-to-day as long as it’s properly sealed and you’re using the right products. To learn more, visit the Caring For It™ section on our site. You’ll find tips and articles, and you can download our Stone and Tile Care Guide.

Day-to-day habits that protect your granite:

Use pH-neutral, stone-safe cleaners — many popular kitchen cleaners and degreasers are too harsh for granite and degrade the sealer over time
Wipe up spills promptly especially oils, wine, coffee, and dark liquids that can stain even sealed granite if left to sit
Never use vinegar, bleach, or ammonia on granite — they break down the sealer and can dull the surface finish over time
Use cutting boards, trivets, and hot pads, granite handles heat better than most surfaces, but direct heat and sharp knives will eventually damage the polish
Do the water bead test once a year — it’s the easiest way to know when your granite needs professional resealing

FAQs

Why does my granite countertop look dull even after I clean it?

There are usually two reasons for this. The first is that cleaning product residue — especially from spray cleaners and dish soap — builds up on the surface over time and creates a hazy, dull film. The second is that the surface polish itself has worn down from daily use and abrasive cleaning. Professional deep cleaning removes the residue, and where the polish has worn, we can restore it. Most granite countertops that look chronically dull respond dramatically well to professional cleaning and buffing.

How do I know if my granite needs to be sealed?

The easiest test — put a few drops of water on your granite and watch for 10–15 minutes. If the water beads up and stays on the surface, your sealer is doing its job. If the water soaks in and darkens the stone, it’s time to reseal. You can do the same test with a small amount of cooking oil, which is the most common staining agent for kitchen granite. If in doubt, give us a call — we assess sealer performance as part of every free estimate visit.

Can granite countertop chips really be repaired, or will I always see the damage?

Most chips — especially on edges and corners, which is where they almost always happen — can be repaired with color-matched epoxy or resin filler to a result that’s very difficult to notice in normal use. The repair quality depends on the size of the chip, the pattern and color of your granite, and the skill of the person doing the work. We color-match carefully and take pride in repairs that hold up and look right. We’ll always show you what to expect before we start.

How long does granite sealing last?

It depends on the granite and how the surface is used. A professional-grade impregnating sealer applied to an active kitchen countertop typically lasts one to three years before resealing is recommended. Bathroom granite and lower-traffic surfaces can go longer. The water bead test is the best way to monitor it — when water stops beading, it’s time. Professional sealers we apply last significantly longer than DIY retail products.

Is granite sealing something I can do myself, or should it be done professionally?

DIY granite sealers are available at hardware stores and work as a temporary measure — but they don’t penetrate as deeply, don’t last as long, and don’t perform as well as professional-grade products. Over time, repeated DIY sealing can also leave residue buildup that affects the appearance of the surface. Professional sealing is worth doing properly, especially on high-use surfaces like kitchen countertops that represent a significant investment.

My granite floor has lost its shine. Can it be polished back?

Yes. Granite floors lose their polish over time from foot traffic, grit, and cleaning — especially in entryways and kitchens. Professional polishing restores the surface sheen and brings back the depth and richness of the stone. This is different from countertop care — floor restoration often involves diamond polishing equipment and a multi-step process, but the results on worn granite floors are excellent.

Can you repair a cracked granite countertop?

It depends on the crack. Hairline cracks and stress fractures can often be stabilized and filled so they’re less visible and don’t spread further. Full breaks — where the slab has separated into two pieces — are a more involved repair. We assess cracks carefully and give you an honest read on what’s repairable, what’s stable, and what might indicate a structural issue with the countertop support that needs to be addressed first.

Do you work on commercial granite surfaces as well?

Yes. We clean, seal, and repair granite in commercial kitchens, restaurant surfaces, hotel lobbies, office reception areas, and retail spaces throughout Minneapolis and St. Paul. High-use commercial granite benefits from a regular professional maintenance schedule — we’re happy to discuss that for your property.

See the Difference. Start Today.

The granite countertops and floors that still look stunning after ten or twenty years of use aren’t just lucky — they’ve been properly cleaned, sealed, and cared for. Classic Marble Restoration has been helping Twin Cities homeowners and businesses get the most out of their granite since 1992. Whether it’s a deep clean and reseal, a chip repair, or a full surface restoration — we’ll tell you honestly what your granite needs and deliver results that last.

Call (763) 784-2483 or contact us online today to schedule your free consultation.

Proudly serving Minneapolis, St. Paul, Edina, Bloomington, Eden Prairie, Maple Grove, and surrounding Twin Cities communities.

FREE ESTIMATES

Not sure what your granite needs? Let us take a look. Get a free, no-obligation estimate and we’ll give you a straight answer.

Natural Stone

Sealing and Protecting

Terrazzo

Saltillo and Mexican Tile

By Area

WELCOME

Welcome