How to Keep Quartz Countertops Looking New: The NH Homeowner's Guide

Quartz Is Low-Maintenance, Not No-Maintenance

One of quartz's biggest selling points is that it doesn't require sealing. Unlike granite or marble, engineered quartz is non-porous — liquids can't penetrate the surface, so you'll never need to apply a stone sealer. That's a genuine advantage, especially for busy NH households.

But "low-maintenance" doesn't mean you can ignore your quartz countertops. The wrong cleaning products, excessive heat, or heavy impact can all cause damage that's difficult or impossible to reverse. Here's how to protect your investment properly.

Daily Cleaning: What Works and What Doesn't

For everyday messes, warm water and a drop of mild dish soap applied with a soft cloth or non-abrasive sponge is all you need. Wipe, rinse thoroughly, and dry. This routine removes food residue, oils, and bacteria without any risk to the surface.

What to avoid completely:

• Bleach or bleach-containing cleaners — these can permanently discolor or damage the resin bond
• Abrasive scouring pads, steel wool, or gritty cleansers — these will scratch and dull the polish
• Oven cleaners, paint strippers, or drain cleaners — highly caustic, potentially permanently damaging
• Vinegar, lemon juice, or citrus-based cleaners — the acid can degrade the resin over time

Many kitchen cleaning sprays that are fine for other surfaces are not safe for quartz. When in doubt, check the label for quartz compatibility before using any cleaning product on your surface.

Tackling Tough Stains and Dried-On Residue

For dried food, gum, or sticky residue that won't wipe off with soap and water, use a plastic scraper or putty knife held at a low angle — never a metal blade. Once the bulk of the material is removed, clean the area with a mild cleaner.

For tougher stains (dried coffee, wine, or food coloring), a glass cleaner or a specialized quartz cleaner like Method All-Purpose or a dedicated stone cleaner works well. Apply, let sit for a minute, and wipe. For particularly stubborn stains, a small amount of rubbing alcohol on a cloth is safe and effective.

Never use anything abrasive to remove stains — you'll remove the stain and the polish simultaneously.

Heat: Quartz's Biggest Vulnerability

This is the most important maintenance rule for quartz: always use trivets or hot pads. Always.

Quartz is heat-resistant, not heat-proof. The resin binders that hold the engineered stone together can discolor, crack, or warp under sudden, extreme heat — particularly from hot pans, electric griddles, and slow cookers. The resulting thermal shock damage is permanent and not repairable.

This is one area where granite genuinely outperforms quartz. Granite is a natural stone that handles heat much better. If you do a lot of high-heat cooking and tend to move pans directly from stovetop to counter, granite may be the more practical choice for your kitchen.

Avoiding Cuts and Scratches

Quartz is scratch-resistant but not scratch-proof. The Mohs hardness of quartz (around 7) means most kitchen knives won't scratch it, but ceramic knives, certain abrasive materials, and heavy impact can leave marks. Always use a cutting board — not for the countertop's sake, but for your knives' sake. Cutting directly on stone dulls knife edges rapidly.

What to Do If You See Damage

If your quartz develops a chip, crack, or irreversible stain, professional countertop repair is worth exploring before considering replacement. Our team can assess whether damage is repairable and provide an honest evaluation. In many cases, localized repairs are effective and far less disruptive than a full countertop replacement.

Call us at 603-736-0004 with any questions about your quartz countertops.