Concrete patio construction in Alhambra CA - a slab that drains away from your house
Cracked old slab or water pooling by the back door? We build a new patio set to drain away, with joints planned before the pour.
- Licensed and fully insured.
- Free on-site estimates.
- We respond within 1 business day.
What does it take to build a concrete patio in Alhambra?
Concrete patio construction in Alhambra means forming, pouring and finishing a flat slab in your yard, with the slope and joints planned first so water runs away from the house and cracks usually follow lines we chose.
Most calls start with an old patio that's cracked through, pulled away from the house or holding water by the back door, or with a bare patch of yard you'd like to use. What you pay turns mostly on the patio's size, whether old concrete has to be broken out and hauled off, how close the truck can get and which finish you pick. The schedule turns on whether the city wants a permit and on the days the slab needs to cure before you set furniture on it, and the written estimate I give you after measuring spells out both.
How do you know your patio needs replacing?
Water by the back door
If water collects against the house after rain or a hose-down, the slab usually falls toward the house instead of away from it. Every time that happens water sits at the wall, and the longer it goes on, the more you're looking at a tear-out instead of a fix.
Cracks across the middle
Cracks that wander across the slab usually mean the joints were cut late or skipped, so the concrete cracked wherever it wanted to. Each open crack lets water in and the edges start chipping, and a patch tends to just mark the spot.
A gap at the house
A crack or gap where the patio meets the wall usually means it was poured tight to the house with nothing to let the two move apart. Left alone, it can keep opening and send water down along the house.
How we handle concrete patio construction
Before anything gets poured, I lay the patio out and set the fall, the slight slope that carries water away from the house, because I'd rather spend an extra hour on layout than leave you living with a mistake. We mark where the control joints will go, the lines cut into the slab so it cracks along them instead of across the middle, and we place them around how you'll use the space. Where the patio meets the house, we set a board against the wall so the concrete doesn't bond to it, which lets the patio and the house each move on their own. Then our crew forms, pours and finishes the slab, cuts the joints on time and keeps it curing until it's ready.
A patio rarely stands on its own. If you'd like it to look like stone or tile, we can pour it as stamped concrete instead of a plain slab, and a concrete sidewalk leading to it can go in at the same time, pitched the same way so water heads to the yard and not the house.
Broom finish
Our crew drags a stiff broom across the fresh surface, leaving fine ridges that give your feet grip when the patio is wet. It suits most open patios, especially near a hose bib or a pool.
Smooth trowel finish
We work the surface flat and tight with a steel trowel, so it sweeps clean and takes an outdoor rug well. It gets slick when wet, so it fits best under a patio cover.
Seeded aggregate
Small stones are scattered into the top and exposed for a pebbly look and good grip. It takes more labor than a broom finish, so it usually costs more.
Get a free written estimate for your patio
Tell us the patio's rough size, where it sits on the lot and whether it meets the house. We reply within one business day to set up a free on-site estimate, with no obligation.
(626) 597-0288- Based in
- Alhambra, CA 91801
- Hours
- Mon–Fri: 8 AM–10 PM, Sat–Sun: 7 AM–9 PM
What happens when you call about a patio in Alhambra?
Here's how a patio job runs from your first call to the final walk-through, and who you'll be dealing with at each step.
Call and set a visit
Call (626) 597-0288 or send the form, and we'll set a time for me to come out. I measure the yard and ask what the patio has to carry and what's going on top of it, like a cover, a grill or a hot tub.
Read your written estimate
It lists each part of the job, from breaking out old concrete to the finish, so you can see what's driving the price, and if a permit's involved we take care of it. The city checks the business license of every company working on your site before it finalizes a building permit, which takes about two weeks, so we plan the pour date around it.
We form, pour and finish
Our crew sets the forms and the board at the house wall, then pours, finishes and cuts the joints, and I'm on site checking the work as it goes. Keep pets and kids off the fresh slab until we say it's ready.
Walk the finished patio together
When we finish, I walk the patio with you before we call it done and go over when it's ready for furniture. Satisfaction guaranteed on every job.
Why Alhambra homeowners call Optimum Alhambra Concrete for patios
I measure every patio myself
I come out myself to walk the job and take the measurements, instead of sending someone else to guess. The layout, the fall and the joint lines on your estimate come from the same person who checks them on pour day.
Commercial habits, started in Alhambra
I spent years on commercial crews where every pour was checked against the plans before the truck backed in, and I started this business in Alhambra in 2023 to bring that care to homes. That habit is why layout comes first on every one of our jobs.
Licensed and fully insured, ask us
We're licensed and fully insured, and you're welcome to ask for proof of both before you sign. The crew pouring your patio works on your property, so it's a fair question for every bidder.
The slope and the joints get settled before the truck shows up, so send us your patio details or call (626) 597-0288 and I'll come measure.
Patios, walkways and Alhambra's concrete limit
Alhambra's landscaping rules limit how much of a yard can be plain concrete. In the yard areas those rules cover, non-decorative hardscape like a gray concrete slab can take up no more than 25% of the space, and a new patio shares that 25% with the driveway and any walkways. That's why I measure the concrete you already have along with the new patio, so the size we draw fits the city's rule before anyone pays for a pour.
On jobs around Alhambra we often find older patios poured tight against the house and pitched toward the back door, and we see the same thing on jobs in Monterey Park and San Gabriel. When we break one out, the new slab gets its own joint at the wall and a fall away from the house.
Questions about concrete patios in Alhambra
How much does a concrete patio cost in Alhambra?
Across the Los Angeles area, a concrete patio usually costs about $4 to $13 per square foot for materials and labor, which is the market's range and not our quote. Plain finishes on easy-to-reach yards tend to sit lower, while decorative work, tight access or old concrete to remove push it up. Your written estimate gives you your own number.
Do I need a permit to pour a concrete patio in Alhambra?
It may, and the city's list doesn't settle it for a plain patio, so ask before work starts. The Alhambra Building Division requires permits for most residential construction on private property, and its list names enclosing a patio but not pouring a concrete one, so the city tells owners to call the Building Division to find out. If yours needs one, we'll keep you posted on where it stands with the city.
Who can legally build a concrete patio in California?
You need a contractor licensed by the California Contractors State License Board whenever the job needs a building permit, uses additional workers, or totals $1,000 or more in labor and materials. The board licenses anyone who builds or alters structures in the state, so ask every bidder for their license before you sign.
Why does the slope of a concrete patio matter?
The slope decides where rain and hose water go, and federal building guidance says patio slabs within 10 feet of the foundation should slope down and away from it. Once the patio is poured, regrading the yard to fix water problems is hard and expensive, which is why the fall gets set before the pour and not after.
How long does a new concrete patio take to cure?
One concrete trade group's guidance says curing starts as soon as finishing is done and continues for at least 3 days. Curing means keeping the fresh slab from drying out too fast so it hardens properly, and you can ask any crew how they'll keep yours curing over those days.
How do I keep a new concrete patio from cracking?
You plan where it cracks rather than hoping it won't, because concrete shrinks as it hardens and control joints give it a place to do that. One maker's guide says a patio larger than 10 by 10 feet will definitely need control joints, so ask any contractor where theirs will go before you sign.
Other concrete work that pairs with a patio
Stamped concrete services
Stamped concrete gives a new patio the look of stone, brick or tile without loose pavers, a good fit when a gray slab would look out of place.
Concrete sidewalk building
A patio is easier to use with a firm path to it, and a concrete sidewalk from the driveway or side gate keeps mud off the new slab.
Service areas around Alhambra and the valley
Optimum Alhambra Concrete is based in Alhambra, CA, and we build patios across the San Gabriel Valley and the cities around it. Twelve of those cities have their own page here, including Pasadena and El Monte, and they're not the only places we work.
Alhambra, CA
Get your patio measured before you decide
A visit tells you how much plain concrete your yard still has room for and which way the new slab has to drain, before you pick a size or a finish.