Clear out all your doubts through our frequently asked questions!

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Does Granite have to be sealed?

Probably not! That is the short answer. But this is a complicated question.


The Marble Institute of America’s position is that most granite does not need sealing. It is a dense enough material to be frost proof, or have a water absorption rate so low that it will not entertain a damaging amount of water in case of a freezing temperature.


Will sealing improve this status? Possibly, but only minimally so.


Also, keep in mind that dark colored granite is harder and less porous than light colored granite.

Does marble have to be sealed? How often?

Marble is a porous material, which means it has tiny holes in the makeup of the stone that air and liquids can be absorbed into.

 This can be a problem in kitchens, where spills are common. So, yes, marble should be sealed. How often depends on the specific stone slab and sealing process.

 A common practice it to reseal it every 6 months, however if a premium sealant is applied resealing can be avoided.

Does quartz have to be sealed?

No. Quartz is non-porous and doesn’t require any sealing.

Does granite harbor bacteria?

Absolutely not! To know more about that, you can check out the website www.hitm.com.

Dr. O. Peter Snyder of the Hospitality Institute of Technology and Management, using e-coli bacteria as its contaminating agent, found significant cleanability advantages of natural, unsealed, non-resin coated granite over all other commonly found countertop surfaces.

Granite actually ranked #1 in cleanability when washed with a soap and water solution.

What are the differences between marble, granite, and quartz?

The rock forming the Earth’s crust falls into three generic groups: igneous, sedimentary, and metamorphic.

Granite is usually classified as an igneous rock derived from molten masses or magmas.

Marble is a metamorphic rock resulting from the recrystallization of limestone.

Limestone and travertine are defined as sedimentary.

Because the world of rocks and geology are such a vast and complicated field, the above descriptions are very general. Please keep in mind that the descriptions shared here are general and there are exceptions.

Granite is a harder material, resistant to heat, chemicals, stains, and scratching. It is available in thousands of colors. General appearances range from fine to coarse graining and little to huge amounts of veining. Of all stones, granite is the most practical.

Marble is a softer material with limited applications, unless the consumer is willing to accept the changes associated with use. Marble’s biggest asset is its appearance or look. Because of its mineral composition, nothing has the look of marble. Marble’s biggest drawback is the lack of stain, chemical, and scratch resistance.

Quartz countertops are man-made engineered stone countertops formed by combining 90{6d1b76f089669530de1705be39d4af75a3bcafe7c221a50472b3b844127f3e62} ground quartz (a natural hard mineral) with 8-10{6d1b76f089669530de1705be39d4af75a3bcafe7c221a50472b3b844127f3e62} resins, polymers, and pigments. This forms a very hard granite-like surface with similar properties of durability and being heat/scratch/stain resistant.

Quartz will not be as reflective or shiny as polished granite. The appearance depends on how the quartz is ground: coarsely ground quartz produces a flecked appearance, while finely ground quartz produces a smooth look. With dyes, patterns, and coarseness all being controlled by manufacturers instead of mother nature, you have more control over consistency.

Is quartz a natural stone?

Quartz countertops are engineered. They are 90-95{6d1b76f089669530de1705be39d4af75a3bcafe7c221a50472b3b844127f3e62} natural ground quartz combined with polymers, resins and pigments.

The resin binds the elements, creating a very strong, non-porous, and scratch resistant material. So, quartz countertops are not natural in the sense that they are not fabricated from large slabs straight from the ground the way marble and granite are. However, they are natural in the sense that most of the material comes from the earth.

The term, “engineered stone” is frequently used to describe quartz.

How do you clean granite countertops?

To clean granite, the number one rule is to be gentle. Use warm water and a dish soap mixture. Scrub gently with a soft cloth and rinse thoroughly. Dry the countertop with a soft towel or microfiber cloth.

Never use windex, ammonia or bleach on granite. It’s important that you always clean up spills quickly when they occur.

Some commercial cleaners are okay on granite, but they may break down the sealing layer faster. If you’re using a commercial cleaner make sure it’s safe for granite. No vinegar-based products, and no citrus. Avoid any abrasive cleaners.

What's the best way to clean marble?

Use a non-abrasive dish soap and warm water. You’ll want a pH neutral soap, as acidic cleaners can harm marble. Apply a thorough covering of the soapy water and scrub gently. Don’t use rough scrubbing cloths, just a soft towel.

How do you clean quartz?

Quartz countertops can be cleaned with a mild detergent and warm water. Just scrub lightly with a soft towel or microfiber cloth.

 Avoid rough cloths, and never use scrubbing brushes or steel wool on quartz. For hardened spills, you can scrape quartz with a soft plastic or rubber tool, for example a rubber spatula.

 Never use metal tools, and always be careful not to drive sharp edges into the stone as the resin can be damaged. Never use harsh or abrasive chemicals on quartz, this includes bleach, ammonia, and window cleaners with high pH levels.

 Your stone manufacturer may also suggest cleaning products for your specific stone. Check your warranty and installation details to see what other products are safe for your countertops.

Can you cut directly on granite countertops?

Granite is very hard and not likely to scratch due to using a knife on the surface.

Can you cut directly on marble countertops?

No. Marble can be scratched. Even sealed marble should not be cut on as any damage to the sealer can allow liquids and food to reach the stone’s surface and pores.

 This can cause discoloration, etching and damage to the stone. Always use a cutting board with marble countertops.

Can you cut directly on quartz countertops?

No. While quartz is highly scratch resistant, and will often withstand a cut from a knife, you should always use a cutting board.

Will heat damage my granite countertop?

Not unless you subject it to a high heat source for a long period of time.

 When handling very hot pans, we recommend using a trivet and avoiding seams on the countertop.

Can you put hot pots and pans on marble countertops?

Marble has a high heat tolerance, but you should not put extremely hot items directly on the stone.

 A pot or pan right off the cooktop for example, could cause a thermal shock that able to crack the marble. Extreme heat can also cause a noticeable color change or minor burn mark on the stone.

 This is true of most natural stones. You’re not likely to have an issue if you do put something hot on your marble countertop, but it is recommended that you let items cool down or use trivets and coasters to be safe. If you’re looking for a stone with better heat tolerance than marble, try granite.

Can you put a hot pan on a quartz countertop?

This can be risky. Quartz is heat resistant, but not completely heat proof. Prolonged exposure to high heat can damage or discolor the resin.

Typically, a coffee mug or warm plate is fine, but a hot pot or pan directly from the cooktop or oven is not. It is best to user a trivet or hot pad for any hot items you place on the countertop.

What's the difference between polished marble and honed marble?

Polished marble has a shiny, high-gloss look. It’s very smooth and it’s coating acts as a protectant.

Honed marble presents a flatter finish, it’s less reflective. People often choose honed marble because it’s less likely to scratch or etch. A scratch on a matte surface will usually be less noticeable than on a shiny finish. However, honed marble will be more susceptible to stains because the stones pores are closer to the surface.

With due care, both options are suitable for most applications, including use in kitchens and bathrooms

How far can marble overhang cabinets?

It depends on the thickness of the stone and how much stone is fully supported. Typically, any overhang more than 10 inches will require support.

Does quartz stain easily?

Quartz countertops are one of the most stain resistant products you can buy. Under normal use, stains are rare.

Some chemicals and solvents can damage the resin used in quartz, so it is important to review your manufacturer’s warranty. Avoid getting bleach, nail polish remover, cooking grease, marker, drain cleaner and highly acidic or highly alkaline chemicals on quartz.

These items can damage the resin and or discolor the pigments. If you do get any of these chemicals on your quartz countertops, be sure to clean them up quickly to avoid staining.

Quick cleanup of any spill is a good rule to follow in general.

Can quartz be used outdoors?

No. Prolonged exposure to direct sunlight and UV rays can case quartz pigments to fade. This is particularly true for darker colored stones.

 Fading is not an issue for typical indoor use.

What are the benefits of quartz countertops?

Quartz is one of the most durable stones options available, it’s less likely to scratch, crack and chip than many stones.

 Quartz is non-porous and doesn’t require sealing, so it’s lower maintenance than granite and marble. Because the stone is made of aggregate stone material combined with resin and pigments, there are many color options.

 Quartz is comparably priced to medium grade granite and marble

 Nevertheless, quartz is harder to repair than natural stones, and doesn’t present the same heat resistance, and the latter can be equally maintenance free if a premium sealant is applied.

Will Eagle Stones do any plumbing? What is included in a “sink cut-out?”

Eagle Stones is not responsible for any plumbing work, electrical work, wall repair, or any additional work service not included in the final invoice. We suggest letting your countertops rest and harden for 24-48 hours after installation to begin plumbing work.


The sink hole cut-out includes the hole for the sink itself and the faucet holes. The sink and faucet must also be on site on the day of installation. Eagle Stones will attach the sink to the countertop for you.

Do you have stones samples?

Eagle Stones does offer small stone samples for many colors.

What to do if the sink is “detaching”?

With time sinks will need to be resealed to ensure the small opening between the counter and sink stays air tight to prevent water damage to drywall and cabinetry.

 Manufacturers recommend doing this once a year along with sealing your natural stone countertop. One good indication is: if the sealant is turning black it’s time to reseal. This will be standard maintenance required by the customer.

 If your sink is “detaching” at a noticeable rate and your installation date was less than 6 months ago please contact a customer care representative as soon as possible.

What do I need to bring when I visit a showroom?

Please bring your measurements so our designers can prepare a quote for you. It is also helpful to bring a sample of a cabinet door, floor tile, paint colors, etc. to help select the perfect color for your project. Product samples can also be checked out and brought home for your convenience.

What happens at a template measurement?

Our field technician will come to your home to measure for your new countertops. These measurements are then sent to our engineering department where they are double checked and your quote will be updated in case something is being changed.

How do I prepare for a template?

You will need to make sure that any areas that are being measured are permanently installed and ready, this includes cabinets, all panels, sills, etc.  If you have existing tops in place, please clear all items off of the tops. 

 We ask that you have small children away from the template area and have your pets closed off in a separate room. It is best for you to be at the appointment in case the field tech has any questions.

 Farm Sinks must be installed and cooktop specs are to be given to your templater. Our templater will pick up your sink at template, unless your sink  is purchased at Eagle Stone.

How much overhang can I have on my island before I need support?

A good rule of thumb is that ⅓ of the width of the countertop can be unsupported with a maximum unsupported overhang of 15” for quartz and 12” for granite tops.

How do I prepare for the installation of my countertops?

Cabinets should be cleared out with drawers removed and placed outside the work area. All construction materials should be removed from the area.

Since countertops are very heavy and may cause serious injury if dropped, please keep small children and animals away from the work area.

During the installation, a substantial number of trips will be made from the kitchen to an outside work area. Please clear a path for the field technicians to use. Ensure gas stoves are disconnected and faucets are on sink.