If your bare concrete looks dull and dusty, we can grind and polish it to a smooth sheen, sampled on your own floor first.
Polished concrete flooring in Castro Valley starts with the slab you already have. We grind it with machines in a series of steps until the whole surface is refined and has the sheen you picked.
Most people who call about polishing have bare concrete in a garage, a basement or a room where the old flooring just came up, and they'd like to keep the slab rather than cover it. Polishing works with what's already there, so the sand and stone in your concrete become the look of the floor.
The price moves with the size of the floor, how far we grind to reach the finish you want, and how much the slab needs first, such as old paint or glue coming off. The schedule turns on those same things, and I put the price and the prep in writing once I've seen your slab. When you compare bids, note that California's licensing rules list concrete finishing under the C-8 concrete contractor class.
Before any grinding starts, you'll choose how much stone shows and how much shine you want. It also helps to know what your concrete can and can't give you.
Polished floors are described by class. A cream finish shows very little stone, a salt and pepper look shows specks of sand, and full exposure shows the larger stone. You pick a class and a sheen level, which gives you and any contractor the same words for the floor you have in mind.
Color can change a good deal from one class to the next. A cream finish may look gray, then turn brown once the surface paste comes off and the sand underneath shows. The color of your bare slab today isn't always the color you'll end up with.
How dense, large and spread out the stone looks at the surface comes from the original concrete mix and how the slab was placed and finished. Grinding can bring out what's in there, but it can't add stone that was never poured, so part of your floor's look was decided the day the slab went in.
Here is how a polishing job goes with us, from your first call to the walk-through on the finished floor, and who handles each part.
Tell us where the floor is and how you use the space, by phone at (510) 931-7868 or through the form. We'll get back to you to set a time for a visit.
I come out myself, check the concrete for cracks and old coatings, and ask how you'll use the room. Then you get a written estimate with the price and the prep spelled out.
Once you're ready, our crew preps the floor. Then we grind and polish it in steps to the class and sheen we agreed on, working through each pass until the whole surface is even.
Before we leave, I walk the floor with you so you can look it over closely and ask questions. We leave the space swept and clean.
Your own slab decides a lot about how a polished floor will look, so we do a small sample on your floor before we grind the whole room. You see the real color and sheen on your own concrete, in your own light. If you'd like us to go further or stop sooner, you can tell us then, while it's still easy to change course.
Prep comes first, because it decides whether the floor turns out right. Any old paint, sealer or glue has to come off, and I'll tell you plainly if the slab needs more work than you expected. I would rather say that at the start than polish over a problem and hope it doesn't show.
Polishing isn't the only way to finish bare concrete, and I'll say so if another one suits you better. If you want a color your slab can't give you, stained concrete flooring adds it. If you want decorative chips set into the floor, terrazzo flooring is a different floor built for exactly that.
Grinding your existing concrete keeps the floor already under your feet. It works well when the slab is sound and the sample shows stone you like.
A polished overlay is a bonded decorative layer cast over the existing slab and made to be diamond ground. It helps when the original surface isn't what you want showing.
Send the form and we'll reply within one business day to set a time for me to come out. The estimate is free and on site, with no obligation. I'll look over your slab and put the price and the prep in writing.
(510) 931-7868Castro Valley is unincorporated, so Alameda County handles building permits here, and owners apply through the county permit portal. Whether a polishing job needs a permit isn't something I'll guess at. If yours does, I'll say so at the estimate, and we'll file it with the county for you, or walk you through it if you'd rather file it yourself.
Grinding concrete makes fine dust. California's worker safety rules require a dust reduction system whenever powered tools grind concrete, unless air sampling on that job shows exposure stays within set limits. The same rule names silicosis, lung cancer, chronic obstructive lung disease and reduced lung function as risks of breathing too much of it, so we treat dust control as part of the grinding itself.
We're based in Castro Valley, and we also work in Hayward, San Leandro, Oakland, Dublin, Pleasanton and many other cities around it. Polished concrete can look different from one area to another, because the type, size and spread of the stone in the mix varies. That's one more reason the sample on your own floor matters.
I got into this trade by grinding and coating my own garage floor and reading every product sheet I could find, and we've been in business since 2017. Those 9 years on real slabs taught me that prep is the part nobody sees, and it's the part that decides how a floor turns out.
I do the estimates myself, and I stay on the job with our crew from the first pass of grinding to the final walk-through. The person who talked through your finish with you is the one checking it. We're licensed and insured. Satisfaction guaranteed on every job.
If you'd like to talk over a finish, please call (510) 931-7868 or send us the form, and I'll come out to see your slab.
Stain soaks color into the concrete, so it's worth a look when you like the feel of a bare slab but want a tone your gray concrete won't reach.
Terrazzo suits a room where you want decorative chips set into the surface and ground smooth, which gives you a pattern no plain slab can offer, polished or not.
We're based in Castro Valley and polish concrete floors in the cities around it, including the ones listed here. If your city isn't on the list, please call and ask.
Polishing concrete across the US usually costs about $8 to $9 per square foot. That's a national figure, not a local one or ours. Your own price depends on the floor's size, the class you choose and how much prep the slab needs, and the estimate I write after seeing your slab gives you your number.
Not always, because your slab's own sand, stone and color decide much of the look. Polishing industry guidance says a mock-up sample should always be done on the actual slab, so owners approve the look on their own floor. That's why we sample before grinding the whole room.
Usually, yes. Floors with lots of pores, such as sand pop-outs, fine cracks, pinholes or air voids, generally need grouting, a filler that gives a more even surface. I'll point out what I see at the estimate, so you know about it before any work starts.
Please clear the room of furniture, rugs and stored items before we arrive. Tell us about any paint, sealer or glue you know is on the floor, because it has to come off before polishing. We'll handle everything from there.
The time on site comes down to the floor's size, how many grinding passes your chosen class takes and whether old coatings have to come off first. I'll go over the schedule for your floor at the estimate, once I've seen the slab and we've settled on a finish.
Call (510) 931-7868 or use the form with the square footage and a few photos of the slab, so I can come out already knowing what to look for.
