J&L Berkeley Concrete CompanyJ&L Berkeley Concrete Company(510) 345-1330
J&L Berkeley Concrete Company
(510) 345-1330Get an estimate

Concrete Contractor in Kensington, CA - Steps, Driveways and Patios Planned for the Slope

J&L Berkeley Concrete Company is a concrete contractor based in Berkeley that builds driveways, patios, steps, walls and foundations for homes in Kensington, CA. I come out to every job myself, and our crew does the forming, pouring and finishing.

Get an estimate(510) 345-1330
Concrete pool deck surrounds a blue swimming pool beside a lit house and covered outdoor seating area at dusk.

Kensington as we see it on a concrete job

Kensington is a small, mostly residential community in the hills between Berkeley and El Cerrito, and it isn't part of either one. It's unincorporated, which matters more for the paperwork than for the concrete.

Most of what we see here are older single-family homes on streets that wind and climb, on lots that rarely sit flat and leave little room between the house and the street. That shapes nearly every concrete job, because the slope decides where the water goes, what the new slab or step will be sitting on, and how we get forms and concrete to a spot a truck can't reach.

Concrete services we offer in Kensington, CA

As a concrete contractor in Berkeley, CA, we bring all sixteen of our services to Kensington, from driveways and steps to foundations and concrete cutting. Every job starts the same way. I come out, look at the slope, the base and where the water goes, and explain what the job needs before you decide anything. Our crew then does the forming, pouring and finishing, with me running the job, so the person who planned it is the one watching it get built.

  • Concrete driveway building

    Driveways here are often short and steep, and a cracked one sends water where it shouldn't. We dig out the old base, pack new fill and pitch the slab away from the garage.

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  • Concrete patio construction

    Flat ground is scarce on a hillside lot, so a patio is often the yard's one level spot. We build the base first and set the fall so rain runs away from the house.

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  • Stamped concrete services

    Older homes here often suit a patio or path that looks like stone or brick instead of plain gray. We press the pattern into fresh concrete, so you get that look on one solid slab.

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  • Concrete sidewalk building

    Front walks on older lots crack and heave until they trip whoever comes to the door. We take out the bad sections and pour new ones on a packed base that won't wash out.

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  • Garage floor concrete

    Garage floors in older houses tend to be cracked, stained or low where water sits. We break out the old slab, fix what's under it and pour a floor that drains toward the door.

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  • Decorative concrete

    Some homeowners want color, a smooth finish or a border that suits an older house better than a standard slab. We go over finishes and colors on site, so you know the look before we pour.

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  • Concrete retaining walls

    Many yards here lean on old walls, and one that tilts is usually losing to the water behind it. We build concrete walls with drainage behind them so that water has a way out.

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  • Concrete floor installation

    Basements, workshops and additions under older homes often have only dirt or broken slab underfoot. We prepare the ground, set the steel and pour a level interior floor you can actually use.

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  • Concrete pool decks

    A pool deck takes constant splashing, and on a sloped yard that water needs somewhere safe to go. We pitch the deck away from the pool and give it a finish that isn't slick underfoot.

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  • Concrete steps construction

    Many houses here sit above or below the street, so steps carry you to the front door every day. We rebuild worn or broken steps with even risers and steel inside so they hold together.

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  • Slab foundation building

    New garages, studios and additions here often need a slab built into the slope. We grade the pad, pack the subgrade, the ground the slab rests on, and pour on that firm footing.

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  • Foundation installation

    Additions and rebuilt homes on sloped lots need foundations stepped to the ground they sit on. We dig, form and pour the footings and walls to the approved plans for your house.

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  • Concrete parking lot building

    Kensington is mostly homes, but the few lots behind shops and apartment buildings still crack and pond. We regrade, rebuild the base and pour slabs sized for the traffic they carry.

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  • Concrete footings

    Decks, walls, stairs and additions on a hillside all rest on footings, and a shallow one is where settling starts. We dig to firm ground and pour footings sized for what they hold.

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  • Foundation raising

    On older houses, a sinking corner shows up as sticking doors, sloping floors or cracks above windows. We look at what's under it first, then lift and support that part of the foundation.

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  • Concrete cutting

    Some jobs start with opening a slab for a drain line, a doorway or a bad section. We saw-cut clean edges so the concrete that stays in place isn't cracked by the work.

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What good concrete work looks like up close

These photos show the kind of concrete work we do, from the base and forms to the finished surface. They're examples of the trade, so look at the edges, joints and slope as much as the color.

  • Newly poured concrete driveway with control joints leads to an open garage beside a brick house.

  • Terracotta-colored stamped concrete patio with a diagonal grid sits outside a white house.

  • Concrete basketball court with a hoop sits in a leafy residential backyard.

Working in Kensington: permits, licenses and what moves the price

Kensington has its own setup for permits and licenses, and it's worth knowing before any work starts. Here's how that plays out on a concrete job, and what changes the price and the timing on yours.

The County handles permits for your address

Kensington isn't part of any city, so your permit comes from Contra Costa County, which handles building permits, inspections, zoning and code enforcement here. The County says almost all projects need a permit, and its examples include foundation repairs. When one applies, the review and the inspections take time before and during the work, so I build them into the schedule from the start.

Before you hire anyone, check two things. The contractor should hold a California contractor's license from the state licensing board, and a County business license, which the County requires of anyone doing business in its unincorporated area. That holds even for a company based in another city, like we are in Berkeley, and the County asks for a copy of the state license to issue it.

  • We look up which office covers your address before pricing.
  • When a permit applies, we file it and set inspections with you.
  • Ask any contractor, us included, for their state and County licenses.

What moves the price and the schedule

The price on a concrete job comes down to a few things. How much old concrete has to be broken out and hauled away, how much of the base under it has to be dug out and packed again, and how big the new slab is. Finish matters too, from a plain broom finish, the brushed texture that gives shoes and tires grip, up to stamped or colored work.

The schedule turns on the permit review when one applies, the weather on pour day and curing, the wait while fresh concrete gains strength before it can take weight. You'll be back on a new patio well before you can park on a new driveway. I'll lay out your price and your timeline in the written estimate once I've seen the site.

  • Breaking out and hauling away old concrete adds to the price.
  • Stamped, colored or smooth finishes cost more than a broom finish.
  • On hot days we pour early so the top doesn't dry weak.

Get a free written estimate for your Kensington concrete job

We reply within one business day. I'll come out to your Kensington property myself, look at the job, check whether a permit applies and give you a free estimate in writing. There's no obligation and no pressure to book.

(510) 345-1330

What the houses and lots here mean for concrete

Kensington's lots and houses settle most of the decisions on a concrete job before we ever talk about finish or color. These are the conditions we plan around when we look at a property here.

  • Slopes that send water somewhere

    On a lot that falls toward the house, a new slab can catch rain and push it right at your foundation. Before we set forms, we check where the water runs today and pitch the new surface so it carries water away from the walls, not into them.

  • Steep driveways take a beating

    A short, steep driveway puts a lot of weight and braking on the slab, and water running downhill eats at the edges and the base. We dig out loose fill, pack the base firm and set rebar, the steel that holds the slab together when it moves.

  • Steps between street and door

    Plenty of houses here sit above or below the street, so concrete steps are the way in and out every day. Uneven risers and crumbling edges are what trip people, so we form each step to the same height and tie the flight into solid footings.

  • Old walls holding up yards

    Many yards here are terraced with older walls, and replacing one section changes the load on what's above and below it. We look at the whole slope, not just the bad stretch, before we tell you what the fix should be and why.

  • Tight streets and tricky access

    Narrow, winding streets and parked cars can make it hard to get a concrete truck close to the work. We plan where the truck sits and whether the concrete goes in by chute, wheelbarrow or pump well before pour day, so nobody's improvising with a load waiting.

How we plan a concrete job before anyone pours

Most of what makes concrete last happens before the truck shows up. Here's how I plan a job, who you'll deal with from the first visit to the last pour, and how to reach us.

The base gets the money before the finish

Concrete is only as good as what's under it, and that part is buried on the first day, so it's the easiest thing to cut when a budget gets tight. I'd rather spend your money digging out soft fill and packing a firm subgrade than on a fancy finish over a weak base, because a good-looking slab that settles still has to come out.

I'll also tell you straight that concrete cracks, and nobody can honestly sell you a slab that won't. What we can control is where. We cut control joints, shallow grooves that give the slab a planned place to crack, while the concrete is still young, and we check where the water runs so the slab falls away from your house.

  • I come out to every job

    I come out myself to look at every job and give the estimate, so the person who measured your slope and asked about your water is the same one running the crew on pour day. Our crew does the forming, pouring and finishing with me on the job.

  • A written estimate you can compare

    You get the estimate in writing with the work spelled out, so you can set it next to other bids and see what each one includes. If something on it doesn't make sense, ask, because I'd rather explain it now than have you guess later.

  • Licensed, insured, working since 2017

    We're licensed and fully insured, and we've been in business in Berkeley and the cities around it since 2017. Your satisfaction, guaranteed. Ask to see our license and insurance before you sign anything, the same way you would with any contractor.

  • Long hours to take your call

    We pick up from 8 AM to 10 PM on weekdays and 6 AM to 9 PM on weekends, so you can reach us before or after work. Call (510) 345-1330 or send the form above and tell us what you're looking at.

Questions Kensington homeowners ask about concrete work

These are the questions that matter most for concrete work in an unincorporated hillside community like Kensington. If yours isn't here, call and ask, and I'll give you a straight answer.

Do I need a permit for a concrete project in Kensington, CA?

Very possibly, because the County says almost all projects need a permit, and its examples include foundation repairs, decks and repairs inside and out. Taller retaining walls need a building permit, and a new structure or a change to the outside of a house can also need planning approval, with Kensington among the areas that get design review, a check of how a project looks and fits. You can read the County's permit information, and I check your address before I price the job.

Does a concrete contractor need a California license to work in Kensington?

Yes, on most jobs, because the state requires a contractor's license when the work needs a building permit, uses any additional workers or costs $1,000 or more in labor and materials. The small-job exemption only covers work under $1,000 that needs no permit and uses no employees. That limit used to be $500, so older advice quoting the lower figure is out of date.

Is Kensington in a high fire hazard zone?

Yes, the Kensington Fire Protection District says the community is within a Very High Fire Hazard Severity Zone, as mapped by CalFire. Concrete itself doesn't burn, which is one reason it works well for patios, paths and steps right up against the house.

How do I know if my Kensington driveway or patio needs a drainage plan?

The County requires a drainage plan for certain projects, including ones that add a large area of new hard surface that sheds water, and larger builds on steep lots. A new driveway, a patio and a walk can add up quickly, so I measure the new hard surface at the estimate and tell you if your job is getting close.

Why does concrete work cost more on a hillside lot in Kensington?

A sloped lot usually costs more because there's more digging, more forming and often steps or a wall to hold the grade. Access counts too, since concrete that has to be pumped or wheeled in from a narrow street takes more crew time than a truck backing up to the forms. Drainage work and any permit add to it, and the written estimate breaks out each piece.

What causes a concrete driveway or patio on a slope to sink and crack?

Most of the time it's the base, either loose fill that was raked level instead of packed, or water running under the slab and carrying the base away downhill. Cracks in odd places usually mean the control joints were cut late or skipped. When we replace a slab here, we fix the base and the water path first, because new concrete on the same ground gets you the same problem.

Service areas

Kensington is one of the areas we serve from Berkeley, and we work across the East Bay, not only in the cities listed below. Not sure we come to your address? Call (510) 345-1330 and ask.

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