Concrete Contractor in Rohnert Park, CA - Slabs Built for Expansive Soil
Allied Petaluma Concrete is a concrete contractor working in Rohnert Park, CA. We build and replace driveways, patios, walkways, steps, garage floors and foundations for homes and small businesses, starting with careful ground prep under every slab.
- Licensed and fully insured.
- Free on-site estimates.
- Replies within 1 business day.
Rohnert Park homes and what they ask of concrete
Rohnert Park is mostly neighborhoods of single-family homes on flat, even lots, with apartment complexes, shopping centers and the university campus mixed in, and a good share of the concrete here has been down a long time. On our jobs we see driveways cracked across the middle, garage aprons that have dropped, patios that tip toward the back door and walkways lifted at the seams. We're a concrete contractor based in Petaluma, and we do the same work here and in neighboring Cotati.
Flat ground looks easy, but water has nowhere to go unless we give the slab a gentle slope away from the house. The soil underneath decides more about how long a slab lasts than the surface does, so every job here starts with digging out and checking the ground before any forms go in.
Concrete services we offer in Rohnert Park
Concrete driveway building
When an older driveway has cracked through, sunk at the garage edge or holds water after a rain, we tear it out, rebuild the base and pour new.
Concrete patio construction
For the backyards here, we pour patios sloped away from the house, so rain and hose water run toward the yard instead of your back door.
Stamped concrete services
Stamped concrete gives a patio or front walk the look of stone or brick in a single pour, which suits the ranch and tract homes common here.
Concrete sidewalk building
We replace front walks and side paths that have heaved or broken into trip edges, setting a packed base and joints so the new run stays even.
Garage floor concrete
Cracked, stained or sunken garage floors in older homes get broken out and repoured on a compacted base, with a smooth finish that's easy to sweep.
Decorative concrete
Color, exposed stone and custom borders let a plain slab match your house, and we lay out the decorative work around the joints so cracks land where planned.
Concrete retaining walls
Where a yard steps down or a planter bed needs holding back, we build concrete walls with footings and drainage behind them so water doesn't push them over.
Concrete floor installation
For shops, additions, sheds and studios, we pour interior floors flat and level, with the base and any vapor barrier set before the concrete goes in.
Concrete pool decks
We pour pool decks with a textured, slip-resistant surface and a slope that carries splash water away from the pool edge and the house.
Concrete steps construction
Front and back steps that have pulled away from the house or tilted get rebuilt with even risers and footings below, so each step feels the same underfoot.
Slab foundation building
For additions, garages and accessory buildings, we dig out, compact and reinforce before pouring a slab foundation, since what's under it decides how it holds up.
Foundation installation
When a new structure or addition needs a full foundation, we form, set steel and pour to the approved plans, planning our start around the city's inspections.
Concrete parking lot building
Small business lots and apartment parking areas get concrete poured thick enough for the traffic they carry, with drainage laid out so water leaves the lot.
Concrete footings
Decks, patio covers, fences and walls all sit on footings, and we dig and pour them to the depth and size the job calls for.
Foundation raising
If part of your house or slab has dropped and doors stick or floors slope, we look for the cause first, then raise and support it.
Concrete cutting
We saw-cut old slabs for removal, plumbing trenches or new control joints, the cuts that give a slab a planned place to crack.
Get a written estimate for your Rohnert Park concrete job
We'll reply within one business day to set up your free on-site estimate, and after I've seen the job you'll get the price in writing. There's no pressure to book.
- support@petalumaconcretecontractor.com
- Based in
- Petaluma, CA 94952
- Hours
- Mon–Fri: 8 AM–10 PM, Sat–Sun: 6 AM–9 PM
What we know from working in Rohnert Park
Building permits in Rohnert Park come from the city's Building Division, and whether your slab, wall or foundation needs one is the city's call, so a job that needs a permit can't start until the city approves it. Before you hire anyone, check that they hold a current California contractor license and a Business Tax Certificate from the city, which it requires of anyone doing business inside city limits, including crews who come in from other cities. We're licensed and fully insured, and our work is backed by our satisfaction guarantee.
When a permit is needed, we help with the application and plan our start around the city's approval and inspections, so the paperwork doesn't land on you. Rohnert Park sits along Highway 101 between Petaluma and Santa Rosa, so it's an easy run for our crew and the concrete trucks, and the price here moves on the same things it does there. That's the size of the slab, how much old concrete and soil comes out, how deep the base goes and the finish you pick. The schedule turns on any permit, our crew's calendar and curing, the days fresh concrete needs to harden before it takes weight, and your written estimate spells all of it out.
Why slabs here crack, sink and hold water
The city has found that Rohnert Park sits on highly expansive soil, the kind that swells when it's wet and shrinks as it dries, and that movement can crack slabs and damage foundations. The finding is for the city as a whole, so it can't tell you about your lot in particular, which is one reason I look at the ground myself. The city also points to gutters, downspouts, splash blocks and concrete landings as ways to keep rainwater away from foundations. On our side, we dig down to firm subgrade, the ground the slab sits on, pack in a compacted base, add rebar, the steel that holds a slab together if it cracks, and slope every slab away from the house.
The base is also the first thing people want to cut, because nobody sees it once the concrete is poured. If the budget is tight, I'd rather you pick a plain broom finish, the light texture that gives shoes and tires grip, than put a fancy surface on a base that was only raked level, since the base is what keeps the slab from settling with the dirt. Concrete can still crack, so we cut control joints on the day of the pour and stay out of the midday heat, which leaves a weak, dusty top.
How a concrete job runs when you call us in Rohnert Park
Here's what happens from your first call to the final walk-through, so you know who you'll talk to and what you'll have in hand at each point.
Call or send the form
Tell us what you're dealing with, whether it's a cracked driveway or a new slab, and we'll set a time for me to come out. You don't need photos or measurements first.
I visit and write it up
I look at the old concrete, the ground and where the water runs, and I ask how you'll use the space. You get a written estimate listing what's included, so you can go through it line by line before you decide.
We handle permits and pour
If the job needs a permit, we help with the application, and since the city reviews applications in the order it gets them, we set your date once approval is in and book inspections through its online portal. Our own crew then digs out, packs the base, forms, pours and finishes.
Walk the finished job together
I walk the work with you before we pack up and clean the site. I'll tell you how long to stay off it while it cures and what to watch for over the first season.
Questions about concrete work in Rohnert Park
Do I need a building permit for concrete work in Rohnert Park?
Rohnert Park requires a building permit for any building or structure that's built, enlarged, altered, repaired, moved or removed, and the city lists some exceptions. We check your job against the city's permit rules before we set a date, and we help with the application when one is needed.
How do I know if I need an encroachment permit for driveway work in Rohnert Park?
You need one for any opening or digging in a city street or public right-of-way, and the city gives widening a driveway apron, the part that meets the street, and running a drainpipe through the sidewalk as examples. Applications go in online or through the city's Engineering Division, and if your job reaches past your property line, we sort that out before work starts.
Who needs a contractor license in California for a concrete job?
California's Contractors State License Board says anyone who contracts for work on a project that needs a building permit, uses employees, or takes on work worth $1,000 or more in combined labor and materials must hold a current, valid license. Ask any contractor for their license and check it before you sign.
How much of a down payment can a contractor ask for in California?
A contractor can't take more than $1,000 or 10 percent of the total contract price, whichever is less, under the state licensing board's rules. That holds for all home improvement work, so a request for a big deposit up front is a reason to slow down.
What affects the cost of a concrete driveway in Rohnert Park?
Size, tearing out the old slab, base work and the finish move the price most, and the base is where quotes differ, because it's buried by the end of the day. A bid that rakes the dirt level instead of digging out and packing a base usually comes in lower and settles sooner on this ground. Compare what each written estimate lists, not just the total.
How do I keep a new concrete patio from cracking in Rohnert Park?
Start with the ground and the water, because on this expansive soil a slab cracks when its base moves or water soaks in beside it. That means a dug-out, packed base, control joints cut on time, a slope away from the house, and gutters and downspouts that carry roof water clear of the slab. Concrete can still get hairline cracks, but those steps keep them small and where they're planned.
Petaluma, CA
Talk to us about your Rohnert Park concrete
I'd rather see the cracks and low spots in person, because what's under the old slab usually tells me more than a photo can.