Garage floor soaking up oil, or a patio that stains with every spill? We seal your concrete so spills wipe up and water stays out.
Concrete sealing in Concord, CA puts a sealer on your driveway, garage floor, patio or pool deck that either soaks into the concrete or leaves a thin film on top, so water, stains and wear have a harder time getting in.
Most people call me because a garage floor is soaking up oil, a patio stains every time something spills, or an old sealer has worn off in patches. The price turns mostly on how much area there is, which sealer you want and how much prep the surface needs, since an old sealer or ground-in grime may need grinding and surface prep before anything new goes on. The schedule turns on how new the concrete is and what's already on it. I'll look at it in person and give you a written estimate with the reasons behind it.
The person who looks at your concrete is the person who owns the business. I check what's on it and how it's holding up, then I'm on site with our crew when we do the work, so nothing gets lost between the estimate and the job.
We've been in business since 2023, and I spent summers through school on flooring and concrete crews before that. Most failed floors I've looked at went wrong underneath, so we find out what your slab is doing, and what's already on it, before any sealer goes down.
We're licensed and insured. When I recommend a sealer, I'll tell you plainly why I picked it for your concrete, so the choice makes sense to you too. If you'd like me to take a look, call (925) 536-0504 or use the form on this page.
We reply to calls and messages within one business day, and estimates are free, on site and come with no pressure to book. I'll look at your concrete, check what's on it and how it's holding up, and give you a written estimate with the reasons behind it. If you have the area's size in square feet, whether the concrete is new or was sealed before, and a photo, send them along.
Before you hire anyone to seal concrete in California, check the license. State law lets someone without a license take on minor work only under $1,000, and only when it needs no permit and they employ no one, so a person who brings a helper or quotes $1,000 or more needs a license. The state licensing board counts the price of the whole job, so a bigger project can't be split into smaller pieces to stay under that line.
Cleaning comes before any sealer, and local clean water guidance for surface cleaning asks that the wash water stay out of the street, gutter and storm drain, held back with sandbags, mats or berms around the work area. Around here we get a lot of calls for garage floors, driveways, patios and pool decks, and the job runs the same way in Concord as it does nearby. We're based in Concord and work in the cities around it, from Walnut Creek and Pleasant Hill out to Antioch and over to Vallejo, and if you don't see your city here, just ask.
Professional concrete sealing usually costs about $1.40 to $2.50 per square foot across the US, with labor and materials included. That's the general market range, not our price. Your own figure comes from the written estimate after I've seen the concrete and what's on it.
Find out what's on it first, because an old sealer usually has to come off before a new coat can soak in. Before stamped concrete is sealed, a dime-sized drop of water should soak in within five or 10 seconds, and if it sits on top, an earlier cure-and-seal product is there and the concrete needs stripping bare. One coatings maker notes that pressure washing usually leaves old coatings behind and adds moisture, while grinding or blasting gets the surface fully clean and dry, so ask which prep a quote includes.
Plan the sealing for a few weeks after the pour. One sealer maker advises waiting 14 to 28 days before putting its penetrating sealer on new concrete, and other products may give different times. If your concrete was just poured, tell us the pour date when you call so we can plan around it.
For one maker's film sealer, keep foot traffic off for at least six hours, and twelve is better. Drying can take longer depending on temperature and humidity. Other sealers have their own times, so we'll tell you what applies to the one we put down.
White stains are sometimes a sign the sealer is keeping water out of the concrete. When that trapped water evaporates, it can leave lime or calcium deposits on the surface. If you're seeing them, I'll look at what's going on under the sealer before suggesting a fix.
