Countertop Sealing in Northbrook, 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
Real sealing jobs in Northbrook
- Northbrook Limestone Shower Cleaning & Caulk Replacement (Northbrook, Limestone): Limestone shower deep cleaning and sealing with pebble stone floor restoration in Northbrook. Removed hard water mineral deposits and soap residue from limestone wall tiles. All deteriorated shower caulking was stripped and replaced with premium mildew-resistant silicone at bench seat, wall joints, and glass enclosure. Grout lines cleaned and sealed throughout. Pebble stone floor was individually cleaned and sealed. Complete penetrating sealer protects against moisture absorption and staining.
- 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.
More real sealing jobs
- River North Marble Bathroom Transformation (Chicago, Marble): Complete marble bathroom restoration in a River North luxury condo. The Carrara marble shower, floor, and vanity had severe soap scum buildup, etching, and grout discoloration. Our team performed deep cleaning, re-honed all surfaces, repaired chips, re-grouted with epoxy grout, and sealed all surfaces for long-lasting protection.
- Skokie Granite Kitchen Countertop Revival (Skokie, Granite): Professional polishing and sealing of a large granite kitchen countertop that had become etched and stained from years of daily use. We removed deep water rings, restored the factory shine through multi-step diamond polishing, and applied a penetrating sealer to protect against future damage.
Before and after
- Granite Floor Polishing & Sealing (Chicago)
- Marble floor polishing and sealing (Chicago)
What Northbrook customers say
- "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)
- "Our quarry tile entryway at the restaurant was a safety hazard — slippery and stained. Granite Heroes cleaned and treated it. Now it's safe, clean, and our customers notice the difference." — Brian K., Deerfield, IL (Google review)
- "Our slate floors in the mudroom were peeling and flaking. Granite Heroes stripped, cleaned, and resealed them. They look better than when the house was built 30 years ago." — Thomas B., Glencoe, 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.