Granite countertops are a timeless choice for kitchens and bathrooms — durable, elegant, and a true value-add to any space. But even the best granite can fall short of expectations if it’s installed incorrectly. Whether you’re a homeowner or a contractor, avoiding these common mistakes can ensure your investment looks stunning and lasts for years.
1. Not Choosing the Right Slab
Every granite slab is unique — variations in color, veining, and pattern are part of its natural charm. One common mistake is selecting slabs from different lots or not viewing the exact slab before fabrication.
Pro Tip: Always visit the slab yard or request slab photos to ensure consistency in look, especially for large projects or multiple countertops.
2. Skipping Professional Measurement
Granite isn’t forgiving when it comes to sizing. Inaccurate measurements can lead to awkward seams, overhangs that don’t align, or pieces that simply don’t fit.
Pro Tip: Hire professionals for templating. Laser measurements ensure precision and reduce the risk of installation delays.
3. Ignoring Support Requirements
Granite is strong, but it’s also heavy. Unsupported overhangs or poorly reinforced cabinets can lead to cracks or even full slab damage over time.
Pro Tip: Use brackets or corbels for overhangs longer than 10 inches, and ensure cabinets are level and structurally sound before installation.
4. Poor Seam Placement
Improper seam placement can ruin the visual flow of the countertop and make the surface look disjointed. Sometimes seams are placed purely for installer convenience rather than aesthetics.
Pro Tip: Work with your fabricator to place seams where they’re least visible, like near sinks or corners. Use color-matched epoxy to make them blend in.
5. Skipping Sealing & Final Inspection
Granite is porous. If not sealed properly, it can absorb spills and stain over time. Skipping sealing — or not doing a final quality check — is a major misstep.
Pro Tip: Ensure the installer seals the granite post-installation and show you how to maintain it. Inspect the surface for chips, uneven edges, or residue before signing off.
Final Thoughts
Installing granite countertops is a big investment — but with the right planning and professionals, it’s one that pays off in beauty and longevity. Avoiding these common mistakes ensures your granite remains the highlight of your kitchen or bathroom for years to come.