Concrete contractor in East San Gabriel - driveways and patios on a solid base
Cornerstone Sierra Madre Concrete is a concrete contractor based in Sierra Madre. We pour driveways, patios, walks and floor slabs for houses and rentals across East San Gabriel, built on a base that's dug out and packed.
- Fully licensed and insured.
- Free quotes on site.
- Replies within 1 business day.
Houses and rentals across East San Gabriel
East San Gabriel is mostly streets of single-family houses with a driveway, a front walk and a backyard, a short drive from us in Sierra Madre and right next to Temple City, where we do the same kind of work. Close to half the homes here are rented, so we hear from landlords between tenants about as often as from owners who live in the house, and both want concrete they won't have to redo in a few years.
Most of the concrete we see here has been down a long time, and the cracks and dips usually trace back to a thin base, not the surface. So we start by looking at what the slab sits on, the same way we do on jobs over in Duarte.
Our services in East San Gabriel, CA
- Concrete driveway building
Older driveways here often crack and sink after years of daily parking. We break out the old slab, dig out and pack a fresh base, then pour new.
- Concrete patio construction
Many backyards here have a tired old slab or bare dirt. We set the grade so water runs away from the house, then pour a patio you'll actually use.
- Concrete floor installation
Garage conversions and room additions here start with the floor. Our concrete floor installation pours a level slab on a packed base so the room above stays flat.
- Garage floor concrete
Older garage floors here are often cracked, stained and pitched the wrong way. We break out the bad slab and pour a new one that drains toward the door.
- Concrete sidewalk building
Front walks here crack and lift where the ground under them shifts. We replace the bad sections and pour a walk that sits flat and drains.
- Concrete cutting
Sometimes only part of a slab needs to go, like one sunken corner. We saw it out on a clean line so the patch meets the old concrete neatly.
What East San Gabriel slabs need underneath
When a driveway here sinks at one corner or cracks across the middle, the cause is usually underneath. The base, the packed layer the slab sits on, was often just raked level instead of dug out and compacted, so it settled with the dirt and took the concrete down with it. We dig it out and pack it in layers, and we cut control joints, shallow grooves that give the slab a straight line to crack along, while the concrete is still fresh. It's like setting a fence post. Nobody sees the hole, but the hole decides whether the post stands, and that's why I'd rather you spend a tight budget on the base than on a fancier finish.
East San Gabriel isn't its own city. It's unincorporated county land, so when a job needs a permit you're usually dealing with the county instead of a city hall, and you can look up which office handles your address on the County's Service Locator. The price moves with the size of the slab, how much old concrete comes out, how much base work the ground needs and the finish you pick, while the schedule turns on any permit and inspections and on curing, the wait while fresh concrete hardens before it takes weight. You'll get your own figure on the estimate I write when I come out.
Get a free on-site concrete estimate in East San Gabriel
We get back to you within one business day. Then I come out to your place in East San Gabriel myself, look at the slab and what's under it, and write you a free estimate with no obligation. If you go ahead, our crew does the work and I'm on site running it.
Driveways, patios and slabs
East San Gabriel concrete questions
Who issues permits for concrete work in East San Gabriel?
For unincorporated parts of Los Angeles County like East San Gabriel, LA County Public Works issues building permits. Its list covers building something new, alterations, repairs and replacements, and grading work, so it's worth checking before any old concrete comes out. Before work starts, we look into what your job needs, and when a permit applies we handle the application as the licensed contractor and walk you through each step.
Does a concrete contractor need a California license to work in East San Gabriel?
Yes, in most cases. The Contractors State License Board requires a license when the project needs a building permit, uses employees, or comes to $1,000 or more in labor and materials, and a bigger job split into smaller bills under $1,000 still counts as the whole job. Ask any contractor for their license before you hire them. We're fully licensed and insured.
How long do I have to schedule the first inspection on a County permit in East San Gabriel?
LA County Public Works says to request the first inspection within 12 months of getting the permit, and follow-up inspections every 6 months keep the permit active. That mostly matters if a project stalls partway. When we handle the permit, we'll tell you which inspection comes next and what it's checking.
How much does a concrete driveway cost in East San Gabriel?
I can't give you a fair number until I've seen it, because the biggest costs here are breaking out the old slab and rebuilding the base, and those change from house to house. Thickness, rebar, the steel bars inside that hold the slab together if it cracks, and a stamped or decorative finish all add to it, and so does a tight side driveway the truck can't reach. You'll have your figure in writing after I've walked the job.
What causes concrete driveways in East San Gabriel to crack and sink?
Usually it's water and a weak base working together. When a slab is poured flat or falls toward the house, water sits on it and soaks the ground at the edges until that ground softens and gives. We check where the water runs before we form anything up, and with a packed base and joints in place, a new slab that does crack tends to crack along the joint line instead of wandering across the middle. Does that make sense?
How long does it take before I can drive on a new concrete driveway in East San Gabriel?
Longer than most people expect, because the concrete has to cure, the wait while it hardens and gains strength, before it can carry a car. You can walk on it well before you can park on it. I'll give you both days for your pour before we start, so you can plan where the cars go in the meantime.