Concrete Sealing in Martinez CA - a slab that sheds water and stains again
Water soaking in, stains setting, color gone flat? We clean, check and reseal your concrete so it keeps water and stains out again.
- Licensed and fully insured.
- Free estimates at your property.
- Expect a reply within 1 business day.
Concrete sealing types we put down
Film-forming sealer
This sealer dries as a thin coat on top of the slab, keeps out water and stains, and often richens the color of decorative concrete.
Penetrating sealer
This sealer soaks into the concrete instead of coating it, so the surface looks much as it did. It suits owners who don't want to change the look.
Does my concrete need sealing in Martinez, and what's involved?
Concrete sealing in Martinez, CA puts a sealer on your slab to keep water and stains out, and some sealers deepen the color too. The job is a cleaning, a drying gap of 12 to 24 hours for best results, and then the sealer.
Usually you call because water no longer beads on the slab, stains soak in, or a stamped patio's color has gone flat. The price turns on how much concrete there is, whether the old sealer has to be stripped first and which sealer you pick, and I put it in a written estimate after I've looked. The schedule turns on that same stripping, the drying time after the wash and a window when the slab will be cooling for three or four hours, which can mean an evening appointment. Martinez lists a business license as required for contractors, so ask for it from any crew you're comparing, ours included.
Cleaning, checking and sealing your slab
I decide what a job needs by looking at the old coat and the slab under it. If it's too worn to seal, we'll talk about concrete resurfacing and overlays or self-leveling concrete instead.
Check the old coat
We reseal when a slab needs it, not on a schedule, since extra coats build up, and we check whether the old sealer must come off.
Wash, contain, then dry
We wash the slab, keep the water out of the storm drains for the reason covered below, and let it dry before sealing.
Thin coats out of the sun
We roll thin coats out of direct sun, because heavy coats can change the look and sun can raise bubbles that weaken the bond.
Keep the sun off it
Keeping direct sun off a fresh reseal for as long as you can helps the new coat, so we time the job with that in mind.
Why Martinez owners call Stonefield
I taught myself floor coatings on my own garage, learned the rest working beside experienced crews, and started this business in Martinez in 2017. What I care about is what's under the coat, so we spend our time on prep and tell you what we'll do before you sign.
I look at your slab myself
I come out myself to look at the floor and write the estimate, and I'm on the job with our crew while they prep and seal.
Licensed and insured, and you can check
We're licensed and fully insured, and you're welcome to ask to see proof at the estimate, before our crew sets up anything on your property.
One promise, explained before you sign
Our promise is satisfaction guaranteed. I explain what we'll do to your slab and why before you sign anything, so you know the plan going in.
What happens when you call us about sealing your concrete?
We plan a sealing job around how you use the slab and your schedule, so before we start you know when it's off limits and what to keep off it.
or call (925) 231-8429
Call or send a message
Call (925) 231-8429 or use the form, and tell me what the slab is, how old it is and whether it's been sealed before.
I look at the slab
I come out, check the old coat and how water sits on it, and ask how you use the space so the sealer fits it.
Written estimate and plan
You get a written estimate. Once you say go, we plan the prep around the sealer you picked and tell you how long the slab is out of use.
Get a written plan to clean and reseal your concrete
Tell us the slab type, its age, whether it's been sealed and what a drop of water does on it. We reply within one business day to set up your free estimate at your property, with no obligation.
Questions about sealing concrete in Martinez
What sealer should I use on a stamped patio in Martinez?
On stamped concrete, a topical film-forming sealer, the kind that leaves a coat on the surface, is the one most used, because it deepens the color and most penetrating sealers don't. If richer color is what you're after, that's usually the pick. I'll tell you at the estimate whether your slab suits it.
How often should stamped concrete be resealed?
Stamped concrete gets resealed when it needs it, not after a set number of years, mainly when it stops repelling water and stains or its color loses depth. Resealing more often than that builds up on the surface, and that buildup can be slow and costly to remove. It's the same reason, covered above, that we don't book yearly recoats for extra gloss.
How do I tell if old concrete sealer has to be stripped?
Put a dime-sized drop of water on the slab. One paint maker's contractor guide says it should soak into stamped concrete within five or 10 seconds. If it sits on top, the slab likely has a cure-and-seal product on it, a coat often put down when the concrete was poured, and it gets stripped bare before a new coat goes on.
Who is responsible if pressure washing water goes into the storm drain in Contra Costa County?
The county says the resident who hires a mobile surface cleaner is ultimately responsible for whatever that contractor discharges. Before you book anyone, ask how they'll block the storm drains and contain the wash area with sandbags, mats or berms, as the county's clean water program advises.
How much does concrete sealing cost in Martinez?
There's no set price, because it comes from your slab, so I give it to you in a written estimate after I've looked at it. Stripping a heavy old coat raises it the most. A slab that only needs a wash and a fresh coat sits at the low end.
How long do I have to wait to seal new concrete?
Wait until the slab is fully cured, because penetrating sealers generally need cured concrete before they go on. Film-forming sealer put on too early can also change how the surface looks. On a new driveway I'd rather wait than rush it.
Other work on the same slab
Concrete Resurfacing & Overlays
When the surface is scaled, pitted or worn past what a sealer can hide, a new overlay gives you a fresh top layer to seal over.
Explore Concrete Resurfacing & OverlaysSelf-Leveling Concrete & Overlays
If an indoor slab has low spots or dips that hold water, a self-leveling layer flattens it before any coating or sealer goes down.
Explore Self-Leveling Concrete & OverlaysConcrete Floor Stripping & Removal
Stacked layers of old sealer, or a cure-and-seal coat that won't take a new one, can come off first so the next coat bonds to bare concrete.
Explore Concrete Floor Stripping & Removal
Concrete sealing rules and jobs around Martinez
I won't guess at whether a reseal needs a permit at your address. The city's Building Department issues building permits inside Martinez city limits, so that's the office to ask. If your job needs one, we sort out with you which city or county office covers your address and who pulls it, and we work with that office from there.
The step that matters most here is the wash, because Contra Costa County requires that water from pressure washing and other mobile surface cleaning stays out of the storm drain system. We're based in Martinez and take jobs across Contra Costa and Solano counties, and we block the drains, contain the wash area and keep the water off the street, the same way we do on jobs in Concord and Pleasant Hill. A lot of what we see is stamped patios and driveways carrying coat on coat of old sealer, which is why the strip-or-reseal check comes first.