Flooring Contractor in San Leandro - Garage and Shop Floors Built on Solid Prep
Cornerstone Dublin Epoxy Flooring is a flooring contractor that coats, polishes and resurfaces concrete in San Leandro, CA, from garages and patios at older houses to shop and warehouse floors that take a beating every day.
Book an estimate for your San Leandro floor
I check the slab for cracks, moisture and old coatings, then write up what it needs.
Request an estimateSan Leandro: older houses, hardworking garages
A lot of San Leandro is older neighborhoods of raised-floor houses, built up off the ground over a crawlspace, with a good stretch of shops and warehouses on the industrial side of town. The city even offers a course on strengthening older raised-floor homes that weren't built to modern earthquake standards, and we walk past plenty of them on the way to the garage. In those houses the concrete we work on is usually out in the garage, on the patio or around the back steps, not under the living room. We see much the same mix nearby in Hayward and Castro Valley.
Those garages have usually had a long life before we show up. Years of oil, a coat or two of old paint, a sealer someone rolled on long ago and cracks from the slab settling all have to come off or get fixed first, because a new coating only holds as well as the concrete under it.
Working in San Leandro: permits, licenses and what drives the price
Building permits in San Leandro go through the city's Building and Safety Division and its Permit Center, and the city's rules don't spell out floor coatings either way, so I check with them before we start on your job. If a permit is needed, we take care of the paperwork as part of the job, and that answer is usually the first thing that sets the start date. City rules cover addresses inside city limits, and the city's building page lets you check whether yours is one. Any contractor doing business in the city also needs a San Leandro business license before starting, so it's fair to ask us or anyone else to show it. We're licensed and insured.
Price here comes down to the floor itself. Size matters, but the bigger swings come from how much old paint, sealer or glue has to come off, how many cracks need repair, whether the slab is holding moisture and which coating or finish you pick. Shop and warehouse floors add the question of when we can work, since we plan those around your hours. The schedule turns on the permit answer, the repairs and the cure time before you walk or drive on it, and I look at the floor in person so you get the estimate in writing. It's the same prep-first way we work in Walnut Creek and across the East Bay.
Services in San Leandro, CA
Garage Floor Coatings
Older San Leandro garages usually come with oil stains, old paint and settling cracks. We grind, repair and coat them so the floor cleans up easily and holds.
Commercial & Industrial Epoxy Floor Coatings
Shops and warehouses on the industrial side of town take forklifts, spills and steady foot traffic. We plan the prep and coating around your business hours.
Read more about Commercial & Industrial Epoxy Floor Coatings
Terrazzo Flooring
Some older storefronts and lobbies here still have terrazzo, and owners often want that look for a new floor. We install terrazzo flooring ground smooth and sealed.
Concrete Floor Stripping & Removal
A lot of floors here carry old paint, sealer or carpet glue from past owners. We strip them to clean concrete so the next finish can bond.
Polished Concrete Flooring
Retail and office spaces here often have a sound slab under worn flooring. We grind and polish it into a hard, glossy floor that's easy to clean.
Concrete Resurfacing & Overlays
Patios and back steps at older houses are often worn, pitted or patched. We repair and resurface them so they look even again without tearing out the slab.
Get a written floor estimate in San Leandro
Send the form and we'll reply within one business day to set a time. I come out to your San Leandro property myself, look at the floor in person and give you a free written estimate, with no pressure and no obligation.
- Phone
- (925) 230-5014
- Location
- Dublin, CA 94568
- Hours
- Mon–Fri: 8 AM–11 PM, Sat–Sun: 7 AM–11 PM
- Credentials
- Licensed and insured.
What San Leandro owners can count on
We're based in Dublin, CA, and offer 16 flooring and concrete services across 12 service areas, San Leandro among them. Every quote is free and done on site.
- Based in
- CA
- Dublin
- Services
- 16
- Service areas
- 12
- Licensed and insured.
- Free quotes on site.
- We respond within 1 business day.
Frequently asked questions
Does a kitchen remodel in San Leandro need a permit if the floor is part of it?
Yes, the city's guidance says a kitchen or bath remodel needs a building permit, and so does replacing windows, doors, water heaters or a roof. A new floor done on its own isn't spelled out there, so we check before we start, like we do on every job. You can read the list on the city's permit guide.
Who can get a building permit in San Leandro?
The city says building permits can only be issued to a California-licensed contractor or the property owner. If your floor job turns out to need one, we handle that paperwork as part of the work, so you're not left filling it out yourself.
What building codes apply in San Leandro right now?
San Leandro uses the current California building codes with its own local amendments, which took effect at the start of 2026. The state and the city added requirements for local conditions, including changes to the structural rules for earthquake design. The city's building codes page shows what's adopted.
How much does it cost to coat a garage floor in San Leandro?
The price is set mostly by the condition of your slab, so I give you a written number after I've seen it. In older San Leandro garages the big factors are stripping old paint or sealer, repairing cracks, checking for moisture, the size of the space and whether you choose epoxy, polyaspartic or a polished finish. Call (925) 230-5014 to set up a visit.
How long does a garage floor coating take in San Leandro?
Most of the time goes into prep, not the coating, so an older garage with paint and cracks takes longer than a clean slab. The start can wait on the permit check, and the coating needs time to cure before you drive on it. I'll lay out the schedule for your floor when I write the estimate.
What causes epoxy to peel on older San Leandro garage floors?
Usually it's the concrete under the coating, not the coating itself. Old paint or sealer left on the slab, oil soaked into it, moisture coming up through it or a surface that was never ground all keep a new coat from gripping. That's why we grind and test the slab before anything goes down, and if it isn't ready, I'll tell you.
Tell us about your San Leandro floor
Call (925) 230-5014 or use the form, and I'll tell you straight whether your slab is ready for a coating.