Granite is a natural stone that comes in slabs and requires professional installation
Granite countertops are slabs of natural stone cut from quarries, polished, and sealed before installation in your kitchen or bathroom. Unlike laminate or solid surface materials, granite is quarried as a single piece of rock, which means each slab has its own pattern, color variation, and veining. You choose your specific slab from a supplier's inventory rather than ordering from a catalog, because no two pieces are identical.
The stone arrives at your home as a finished slab that a fabricator cuts to fit your countertop space, drills for sink and faucet holes, and installs with adhesive and support brackets underneath. The entire process—from selection through installation—typically takes four to eight weeks, depending on how busy the fabricator is and whether your sink or cooktop needs custom cutouts.
Key Takeaways
- Granite costs between $40 and $100 per square foot installed, depending on the color, thickness, and your location, with rare colors and thicker slabs at the higher end.
- The stone is heat-resistant and scratch-resistant but requires sealing every one to three years to prevent stains and water damage.
- You select your actual slab in person at a stone supplier, not from a picture, because the pattern and color vary from piece to piece.
- Installation involves cutting the slab to size, drilling for fixtures, and securing it to your cabinets with adhesive and support brackets, a job that takes one to two days.
- Granite can crack if struck hard or if your cabinets shift, and repairs require professional resin filling that may not match the original stone perfectly.
How granite countertops are priced
The cost of granite countertops depends on three main factors: the color and rarity of the stone, the thickness of the slab, and the complexity of your layout. Common colors like black, tan, and gray typically cost $40 to $60 per square foot installed. Rare colors, exotic patterns, or imported granite can run $80 to $100 or more per square foot. Thicker slabs (usually 1.25 inches instead of the standard 0.75 inches) add $10 to $20 per square foot.
The price also includes fabrication—cutting the slab to fit your countertop, drilling holes for your sink and faucet, and polishing the edges. If your kitchen has an island, a peninsula, or an L-shaped layout, you pay for the total square footage of all surfaces. A typical kitchen countertop of 30 to 40 square feet might cost $1,500 to $4,000 installed, though this varies significantly by region and stone choice.
Labor and delivery are usually bundled into the per-square-foot price, but ask your fabricator whether they charge separately for removal of your old countertop or for custom edge profiles (beveled, bullnose, or ogee edges cost extra). Some fabricators also charge a deposit—often 50 percent—when you select your slab, with the balance due upon installation.
What granite can and cannot withstand
Granite is one of the hardest natural stones used in kitchens, which means it resists scratching from knives, pots, and everyday wear better than marble or limestone. It also withstands heat well—you can set a hot pan directly on the surface without damage. However, granite is not indestructible. A hard blow from a heavy object or a sharp impact can chip or crack the stone, especially along edges or corners where the slab is thinner.
The bigger vulnerability is staining and water damage. Granite is porous, meaning liquid can seep into tiny holes in the stone and cause discoloration or allow bacteria to grow. This is why granite must be sealed when it is installed and resealed every one to three years, depending on how much use the countertop gets and what you spill on it. Acidic liquids like lemon juice, vinegar, and wine can etch the surface if left sitting, and oil-based stains from cooking can darken the stone permanently if not cleaned quickly.
Granite also requires support underneath. If your cabinets shift or settle unevenly over time, the stone can crack. This is why fabricators install steel or wood brackets under the slab and why you should not remove cabinet supports or modify the cabinet structure after installation.
Selecting and ordering your slab
Unlike countertops you order from a catalog, granite selection happens in person at a stone supplier's showroom. You visit the supplier, look at actual slabs in different lighting, and choose the one you want. The supplier measures your countertop space (or you provide measurements from your contractor), and the fabricator cuts and finishes that specific slab for your kitchen. This process takes time because the fabricator must schedule your job, cut the stone, drill holes, polish edges, and arrange delivery and installation.
When you visit the showroom, bring photos of your kitchen cabinets and backsplash so you can see how the granite color and pattern will look in your space. Ask the supplier to show you how the slab will be oriented—some patterns look better running one direction than another. Also ask about the sealing process: some suppliers seal the stone before delivery, while others expect you to seal it after installation. Confirm what is included in the price and what costs extra.
Once you select your slab, the supplier typically requires a deposit to reserve it and begin fabrication. The timeline from selection to installation is usually four to eight weeks, though it can be faster if the supplier has a backlog or slower if you choose a rare stone that must be ordered from a quarry.
Installation and what happens on the day
Installation usually takes one to two days. The fabricator's crew arrives with the finished slab, removes your old countertop (if you are replacing an existing one), and sets the granite in place using construction adhesive and support brackets. They drill any final holes for your sink strainer, faucet, or cooktop if those were not completed during fabrication. The crew then seals the seams where two slabs meet (if your countertop is larger than a single slab) and cleans the surface.
You cannot use the countertop for 24 to 48 hours after installation because the adhesive needs time to cure. The fabricator will tell you the exact timeline. During this waiting period, avoid placing heavy objects on the surface or running water over seams. Once the adhesive is fully cured, the countertop is ready for normal use, though you should wait a week before sealing if the fabricator did not seal it before installation.
If your sink or cooktop needs to be installed after the granite is in place, coordinate with your plumber or electrician before the fabricator arrives. Some fabricators can drill holes on-site if needed, but this adds time and cost. It is usually faster and cheaper to have holes drilled during fabrication at the supplier's shop.
Sealing, maintenance, and repairs
Granite requires sealing to protect against stains and water damage. Most fabricators seal the stone before delivery, but you should confirm this and ask what type of sealer was used. Sealer wears away over time, especially in high-traffic areas like the space around your sink. You can test whether your granite needs resealing by dropping a small amount of water on the surface—if it beads up, the sealer is still working; if it soaks in, it is time to reseal.
Resealing is a straightforward process you can do yourself with a granite sealer from a home improvement store, or you can hire the fabricator to do it. The cost of DIY sealing is $20 to $50 for a bottle of sealer that covers several applications. Professional resealing typically costs $100 to $300 depending on the size of your countertop and your location. Most people reseal every one to three years, though high-use kitchens may need it more often.
For daily maintenance, wipe spills when ready with a soft cloth and mild soap and water. Avoid acidic cleaners, bleach, or abrasive scrubbers, which can damage the sealer or etch the stone. If a chip or crack appears, contact the fabricator—small chips can sometimes be filled with color-matched resin, though the repair may be visible depending on the stone's pattern. Large cracks usually require professional repair and may not blend seamlessly with the original stone.
Granite versus other countertop materials
Granite is more expensive than laminate or solid surface materials like Corian, but it lasts longer and resists heat and scratching better. Compared to quartz (an engineered stone made from crushed quartz and resin), granite is slightly cheaper but requires more maintenance because it is porous and needs regular sealing. Quartz does not need sealing and resists stains better, but it can be damaged by extreme heat and is not quite as scratch-resistant as granite.
Marble is similar in price to granite but is softer and more porous, making it less practical for kitchens where acidic foods and hot pans are common. Butcher block and concrete are trendy alternatives that cost less upfront but require more frequent maintenance and do not last as long. If you want a natural stone look with minimal maintenance, quartz is a better choice than granite. If you prefer the unique pattern of natural stone and do not mind sealing it periodically, granite offers better value over time.
Frequently Asked Questions
Can I install granite countertops myself?
No. Granite slabs are extremely heavy (often 300 to 500 pounds) and require specialized equipment to move and position. The adhesive, sealing, and edge finishing also require professional tools and experience. Improper installation can result in cracks, uneven surfaces, or water damage. Hire a licensed fabricator to handle the installation.
What should I do if my granite cracks?
Contact your fabricator when ready. Small cracks can sometimes be filled with color-matched epoxy or resin, though the repair may be visible. Large cracks that go through the thickness of the slab may require replacing the entire slab, which is expensive. Cracks caused by impact or cabinet settling are usually not covered by warranty, so prevention through proper support and careful use is important.
How often do I need to reseal granite?
Most granite needs resealing every one to three years, depending on use and the type of sealer applied. Test your countertop by dropping water on it—if the water beads up, the sealer is still effective. If it soaks in, reseal. High-traffic kitchens and areas around sinks may need resealing more frequently than other parts of your countertop.
Can I cut food directly on granite?
You can, but it is not recommended. Granite is hard enough that knives will not damage it significantly, but cutting directly on the stone can dull your knives faster than cutting on a wooden or plastic board. Use a cutting board to protect both your knives and the sealer on the granite surface.
What is the difference between granite and quartz countertops?
Granite is natural stone that requires sealing every one to three years. Quartz is engineered from crushed quartz and resin, requires no sealing, and resists stains better. Granite is slightly cheaper and has unique patterns, while quartz offers more consistent colors and lower maintenance. Both are durable and heat-resistant, though quartz can be damaged by extreme heat.