Countertop Sealing in Mount Prospect, IL
Natural stone is porous. A good impregnating sealer slows down how fast oil, wine, coffee and water soak in, so you have time to wipe spills before they stain. We deep clean the countertop, let it dry, and apply a penetrating sealer chosen for your stone.
How do I know if my stone countertop needs sealing?
Put a few drops of water on the countertop and wait a few minutes. If the stone darkens, the water is soaking in and the countertop needs sealing. If it beads up, the sealer is still working. Sealing helps prevent stains but does not stop etching on marble. Send us photos for a quote.
Signs your countertop needs sealing
- Water darkens the stone instead of beading
- Oil or grease spots near the cooktop
- Rings from wine, coffee or juice
- Dark areas around the sink
- It has been years since the last sealing
Our process
- Water test We check how fast the stone absorbs to confirm it needs sealing.
- Deep clean Residue and old film are removed so the sealer can penetrate.
- Dry The stone is allowed to dry so moisture is not trapped.
- Apply sealer A penetrating sealer suited to your stone is applied and worked in.
- Remove excess Excess is buffed off so no hazy film is left behind.
Stones we work on
Granite, Marble, Quartzite, Limestone, Travertine
Recent sealing jobs near Mount Prospect
- Limestone Island Countertop Polishing (Arlington Heights, Limestone): Polished and sealed a limestone kitchen island countertop in Arlington Heights. The porous limestone had developed etch marks from acidic foods and beverages. We carefully honed out the damage, polished to the homeowner's desired finish level, and applied a premium impregnating sealer. Caulking around the island base and backsplash was replaced for a clean, finished look.
- Granite Countertop Polishing & Sealing in Park Ridge, IL (Park Ridge, Granite): This project involved restoring a worn granite kitchen island that had lost its natural clarity and reflective finish due to everyday use and surface abrasion. Over time, granite surfaces can develop micro-scratches, dull traffic patterns, and reduced light reflection, especially in high-use areas such as kitchen islands and food preparation surfaces. Our Granite Heroes restoration process is designed to remove this wear while restoring the natural depth and brilliance of the stone. The process began with a multi-stage diamond honing system to carefully refine the granite surface. This step removes microscopic surface damage and levels the…
- Northbrook White Marble Kitchen Countertop Restoration (Northbrook, Marble): A Northbrook family kitchen with beautiful white Danby marble countertops had suffered from significant staining and etching near the sink area. The once-pristine surface showed discoloration from coffee, wine, and everyday cooking. Our team performed a full countertop restoration, starting with stain removal using specialized poultices, followed by diamond honing to eliminate etch marks. We brought the surface to a soft honed finish that matched the homeowner's preference, and applied a high-performance sealer. The farmhouse sink area received special attention to ensure a seamless, clean transition.
Before and after
- Granite Floor Polishing & Sealing (Chicago)
- Marble floor polishing and sealing (Chicago)
Reviews from customers near Mount Prospect
- "Our ceramic tile backsplash grout was completely discolored. Granite Heroes cleaned and color-sealed every joint. It looks brand new and I can't stop showing it off to friends." — Emily C., Park Ridge, IL (Google review)
- "Our travertine floors were dull and lifeless. There were areas where the grout was dirty and brittle. I am extremely happy with the results of their work. The foyer, bathroom, shower and countertops all look amazing." — Debra F., Northbrook, IL (Google review)
- "You guys are the most amazing business owners I've ever dealt with. Thank you for coming out and polishing the bathroom marble. The work is absolutely flawless and most professional I've seen." — Denny D Speed, Edison Park, IL (Google review)
Does sealing stop etching on marble?
No. Sealer helps against stains, but acids still react with marble. Etch marks are removed by honing and polishing.
Do quartz countertops need sealing?
Engineered quartz is non-porous and generally does not need sealing. Natural stone does.
How much does countertop sealing cost?
It depends on the size of the countertop. Send us photos and we will reply with a quote.