8 Facts about Installing Granite Countertops

Granite is one of the most popular natural stone surfaces for kitchen and bathroom countertops. Its extreme hardness makes it a durable option for homeowners today. Plus it keeps its shine for decades so it always looks like new.
Installing granite countertops is a big job. Here’s a little peek at what happens before it ends up in your space.
Kitchen countertops & island of white granite with black & tan mineral deposits, patio doors with view of beach and ocean.

Countertop transportation is tricky

Moving your granite countertop from the warehouse to your kitchen is a tricky business. Even though it is nearly invisible once installed, prior to installation it can chip and break and needs to be handled carefully. A wooden A-frame is constructed to support the granite in transit.

The largest of granite countertop slabs can weigh over 500 pounds and are lifted onto a heavy-duty truck by crane.
Large kitchen island with white and grey granite. Orchid in blue pot on the counter next to the sink.

Granite is cut to fit on-site

Cutting your granite to fit around the sink should be done in your kitchen or bathroom rather than at the fabricator. Cutting off-site means you run the risk of an improper fit. When it is cut on-site, you’ll get a custom fit.

Granite is cut with specialty saws

The power needed to cut through granite is considerable. It is one of the hardest stones in the world. That’s what makes it great for countertops. Thin granite tiles can usually be cut with a standard table or circular saw. But thicker, larger slabs need water-cooled blades to make the cut. Some opt to use diamond blades for easier cutting.
Wet bar with dark granite gray and rust countertop, stainless steel faucet and sink, tan backsplash with black & wood grain accents.

Successful installation starts long before the countertop arrives

A problem-free countertop installation starts when the cabinets are put in. They should be installed to be level and walls should be at a perfect 90 degree angle. The cabinets need to be prepared to hold the weight of the granite by putting in proper plywood support on top of the cabinets.
An expert installer will create a template of your countertop to guide the cutting process. He or she will fit your countertop more than once to ensure a snug fit. After gluing the countertop down, each seam is sealed with a resin that matches the granite and keeps water from leaking between the granite and the sink.

Granite tiles are easier to install than granite slab

Granite tile is considerably less expensive than granite slab, sometime less than half the cost. One reason for the lower price is that granite tiles are substantially thinner than slab, thus there is less stone per square foot and they are easier to transport. The thinner tiles are more DIY-friendly because they are easier to cut and install.


Tiles should be spaced close together to decrease grout lines and the grout should closely match the tile. Sealing grout is imperative to prevent adsorption of moisture, dirt and grime.


While granite tile does not mimic fully the seamless look and can be have a lower return on investment than granite slab, the overall savings make kitchen upgrades more accessible.
Kitchen with beige & brown granite island with built-in sink, beige limestone backsplash, beige cabinets, hood vent, and floating shelves.

Granite countertops should be sealed before use and resealed annually

All natural stone, including granite, is porous and can absorb liquids. When liquid seeps into the stone, it leaves a stain behind. Granite is also sensitive to acid and will etch if alcohol, citrus juice, or other acidic substances come in contact with it.

Avoid these disasters by sealing your granite before you use it. It is recommended that you reseal your granite at least once a year. Some seal their granite every six months, especially if the countertop gets a lot of action. Note that sealer doesn’t make your granite impervious to liquids; it just means you have a little longer to get that spill up before it stains.

Once granite is sealed, it needs to be maintained

Granite countertops will last indefinitely. If you want them to keep looking like they did the day you installed them, be sure to take care of them. Granite doesn’t require much work. Seal them then keep them clean and dry and they’ll look great. Avoid abrasive or acidic cleaners and use a grease-cutting soap to tackle oil-based spills and you should be able to enjoy beautiful counters for a long time.
Rounded edge kitchen peninsula with cooktop and dramtic dark gray and white natural stone countertop.

Consider a stone enhancer sealer for pristine countertops

Stone enhancers penetrate the granite and darken the surface. It gives it that wet look that brings out the detail and color of the stone. Enhancers can make older surfaces look like new again. These come in enhancer-sealer combos so you get two jobs done with one product.

Additional Resources


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