B&K Chino Concrete CompanyB&K Chino Concrete Company(909) 479-6302
B&K Chino Concrete Company
(909) 479-6302Get an estimate

Concrete Contractor in Diamond Bar, CA - Driveways and Slabs Built on Solid Prep

B&K Chino Concrete Company is a concrete contractor based in Chino that works in Diamond Bar, CA, pouring driveways, patios, steps, retaining walls, footings and slabs for homeowners, property owners and builders across the city.

Get an estimate(909) 479-6302
Wide stone-look concrete steps lead up to a covered home's entrance, with matching paving across the porch.

Diamond Bar as we see it on our jobs

Diamond Bar is mostly homes, many of them on hillside streets where very little sits level. We're based in Chino, a short drive away, and do the same work next door in Chino Hills and Pomona. The calls we get here are usually about a driveway that's cracked or sinking, a patio that's started to tilt, or a low wall to hold back a bank.

Ground like that is why most of the work on a Diamond Bar job happens before the pour, in the base and in where the water will run.

Concrete work we do in Diamond Bar

We bring all of our concrete work to Diamond Bar, from flatwork, the slabs that lie on the ground like driveways, patios and walks, to footings, retaining walls, foundations and parking lots. Every job starts with a look at the spot, how the ground slopes, where the water goes and what the new concrete will sit on. Then we plan the base, the forms and the pour around what we found, so the part you'll never see gets the same attention as the finish.

  • Concrete driveway building

    Driveways here often climb from the curb, so a base that settles shows up fast as cracks. We dig out and pack the subgrade, the ground the slab sits on, before we pour.

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  • Concrete patio construction

    Back yards that step down a slope can leave a patio tilting toward the house. We set the slab to shed water away from your walls and pack the base under it.

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  • Stamped concrete services

    Stamped concrete gives a front walk or back patio the look of stone or brick. We press the pattern in while the surface is still soft, then seal it to protect the color.

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  • Concrete sidewalk building

    Walkways on a grade are where a raised edge or sunken panel trips people. We slope them so water runs off and cut control joints, grooves that tell cracks where to go.

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  • Garage floor concrete

    An older garage floor with cracks, stains or a low spot by the door usually needs more than a patch. We break out the old slab, fix what's under it and pour new.

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  • Decorative concrete

    Front entries and courtyards are where a lot of homeowners here want color or texture instead of plain gray. We match the finish to how the space gets used, then seal it.

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  • Concrete retaining walls

    Yards that drop off behind the house often need a wall to hold back the bank. We build it on a footing with drainage behind it, because trapped water is what pushes walls over.

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  • Concrete floor installation

    Room additions and workshops need an indoor slab that's flat and stays dry. We lay a moisture barrier under it and finish it level so your flooring goes down right.

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  • Concrete pool decks

    A pool deck here gets wet every day, so slope and grip matter more than looks. We pitch it away from the water and give it a finish bare feet can hold onto.

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  • Concrete steps construction

    Houses set above the street often have steps that have settled or pulled away from the porch. We form every step the same height, because an odd one is what trips people.

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  • Slab foundation building

    New garages and additions on a sloped lot need a slab on ground that's been cut and packed level. We set rebar, steel bars that keep cracks tight, and pour to the plans.

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  • Foundation installation

    Building on a hillside lot means the foundation has to suit that ground before anyone digs. We cut and pack the pad, then dig, form and pour to the approved plans.

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  • Concrete parking lot building

    Shops, offices and apartment buildings in the city need a lot that carries cars and drains without standing water. We plan the drainage first, build a heavier base and pour in sections where that helps.

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  • Concrete footings

    Patio covers, walls and additions all sit on footings, the buried concrete that carries the weight. We dig them to the depth the plans call for, on firm ground.

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  • Foundation raising

    When a slab or a corner of a house on a slope has dropped, the ground under it usually moved. We find out why first, then lift and support it on firmer ground.

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  • Concrete cutting

    Adding a line or taking out a damaged section of an older slab means cutting it clean without cracking the rest. We check for buried lines first, then saw a straight cut.

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What good prep and a clean finish look like

These photos show the kinds of work we do, not specific Diamond Bar jobs. Look at the edges, the joints and the finish, because that's where careful work shows up.

  • Stamped concrete patio with a curved walkway leads from wooden deck stairs to a circular fire pit in a grassy yard.

  • A rectangular swimming pool is surrounded by a light gray concrete deck, lounge chairs, lawn, and fencing.

  • Concrete patio beside a home features a tan finish, dining set under an umbrella, grill, and stepping stones through dark mulch.

What to know before your Diamond Bar concrete job

Every city we work in, from here to Eastvale, has its own steps for home projects, and in Diamond Bar they decide when the work can start. Here's who handles what, what to check and what moves your price.

Who issues permits and who checks contractors

Building permits in Diamond Bar come from the city's Building and Safety Division, for work that builds, changes, removes or repairs structures at homes and businesses. When a job needs one, the city sets the pace. If your plans need a plan check, the city's code review of the drawings, the Planning Division has to approve them before they can be filed, and every inspection runs on the city's calendar.

The city also requires a business license from anyone working inside city limits, contractors included, even ones based somewhere else like us. You can ask the Planning Division about it at 909-839-7030. When a job needs a permit, we work out with you who pulls it before anything starts, and if it isn't clear, we check with the city's building office first.

  • Building permits for structures come from the city's Building and Safety Division.
  • Plans that need a plan check go through the Planning Division first.
  • Contractors based outside the city still need Diamond Bar's business license.

What moves your price and your schedule

Price comes down to size, thickness and what's already there. Tearing out and hauling an old slab costs money, and so does every bit of digging and base work a slope asks for. Steps, walls and forms on a grade take time, and a stamped or colored finish costs more than a plain broom finish, the brushed texture that gives shoes and tires grip.

The schedule turns on the permit, if your job needs one, and on the city's inspections, which we plan the work around. After the pour, the slab needs time to cure, the slow hardening that gives it strength, so you stay off it for a while and keep the car off longer. I'll give you your own number once I've seen the spot.

  • Hauling away an old driveway adds labor and disposal to the job.
  • A steep grade means more digging, more forming and more handwork.
  • Waiting on an inspection can push a pour date back.

Get a free on-site quote for your Diamond Bar concrete job

Call (909) 479-6302 or send the form, and we'll get back to you within one business day. I'll come out to your place in Diamond Bar myself, look at the spot, the slope and where the water runs, and give you a free quote on site with no pressure and no obligation.

(909) 479-6302

What Diamond Bar lots and houses ask of a slab

Plenty of lots in Diamond Bar sit on a slope, and that shapes most concrete work here. These are the things we look at and plan around on houses like these.

  • Driveways that climb from the curb

    A lot of driveways here climb from the street, so water runs straight down them and tires need grip. We broom finish a sloped driveway and shape the bottom edge so water doesn't pool there and work its way under the slab.

  • Back yards that step down

    Yards that drop away from the house leave less flat ground than most people want. Building a patio out over that drop means bringing in fill and packing it in thin layers, or holding the bank with a wall, because loose fill settles and takes the slab with it.

  • Water from the yard above

    On a hillside lot, water from higher ground has to go somewhere. We check where it runs before we set forms and pitch every slab away from your walls, because a patio that falls toward the house sends water right to the foundation.

  • Older slabs due for replacement

    Many houses here still have their original driveways and walks, and by now some are cracked, lifted by roots or sinking at the joints. We break out the bad sections, look at what failed underneath and fix that, so the new slab isn't sitting on the same problem.

  • Tight access on curving streets

    Some lots here sit on narrow, curving streets or have tight side yards, so the truck can't always reach the pour. We work out access when I come out, whether that's a pump, a wheelbarrow line or pouring in stages, because it changes the price and the plan.

Why hire us for concrete work in Diamond Bar

I've torn out a lot of bad concrete, and most of it failed because of what was under it or how it was finished. Here's how we work so yours doesn't end up that way.

The base gets the money first

I grew up pushing wheelbarrows on concrete crews every summer and learned to finish flatwork before I could drive. I started this business in Chino in 2021, after years on other people's crews, because I wanted jobs done the way I was taught. That mostly means prep, digging out soft dirt, packing the base and checking where water runs before a form goes in.

Nobody sees the base on day one, which is why it's the first thing people want to cut when money gets tight. I'd cut the fancy finish instead. A plain slab on a solid base holds up. A stamped slab on raked dirt settles with the dirt, and then you're paying to tear it out. I'd rather give you that answer, even if it means a smaller job.

  • I look at every job myself

    I come out to look at every job myself, so the person who prices your job is the one standing there when we pour. My crew and I do the work, so there's no handoff to someone who never saw your yard.

  • Licensed, insured, specialists when needed

    We're licensed and insured. When a job needs more than a concrete crew, like scanning for buried lines before a cut or an engineer for a foundation, we bring in licensed specialists instead of guessing.

  • Joints cut on time, pours timed right

    We cut control joints while the slab is young, because waiting lets it crack wherever it wants. We pour early instead of into the midday heat, which can leave a weak, dusty top, and we give the slab its full cure before anyone uses it.

  • Satisfaction guaranteed, honest about cracks

    Satisfaction guaranteed on every job. I'll also tell you up front what concrete can and can't do, including that it can crack, so nothing surprises you later. Call (909) 479-6302 or send the form, and I'll come look at your job.

Diamond Bar concrete questions, answered plainly

These are the questions we hear from Diamond Bar homeowners, from permits and inspections to price. Each answer starts with the short version, and the rest tells you what it means for your job.

Do I need a permit for a concrete retaining wall in Diamond Bar?

In most cases, the city says a retaining wall no taller than three feet needs no building permit, measured from the bottom of the footing to the top of the wall. That measurement includes the buried footing, so a wall that looks shorter than three feet above the dirt can still go over. For anything taller, we check with the city's building office before we start.

Does a block wall or fence in Diamond Bar need a permit?

A freestanding wall or fence in Diamond Bar needs no building permit, but it does need a Zoning Clearance, an over-the-counter approval from the Planning Division. Privacy walls and fences can go up to six feet in side and back yards, but only 42 inches in setback areas that face a street. Tell us where the wall goes and we'll plan the footing to fit.

How do I schedule a building inspection in Diamond Bar?

Call the city's inspection hotline at 909-839-7027 at least the day before you want the inspection, and leave the project address, the permit number and the type of inspection. Inspections run Monday through Thursday, 9 a.m. to 5 p.m., except holidays, so we plan pours around those days.

How much does a concrete driveway cost in Diamond Bar?

The price of a driveway in Diamond Bar comes down to its size, how much old concrete has to come out and how much digging and base work your slope needs. Hauling matters here, because the city requires construction, remodeling or demolition projects of 1,000 square feet or more to recycle, reuse or divert at least 75% of their waste, and heavy-debris jobs need a city special limited-collection permit and a rented roll-off dumpster. Removing a lot of debris also takes an encroachment permit from the city's Public Works Department. Call and I'll come look at yours.

Does a patio cover in Diamond Bar need a building permit?

Yes, Diamond Bar requires a building permit from Building and Safety for a patio cover. The posts usually sit on concrete footings, which we dig and pour to the permitted plans. Whether the patio slab itself needs a permit isn't settled by what the city lists, so we ask the building office before we start.

What is the best way to keep a new concrete driveway from cracking on a sloped lot?

Start under the slab, with a base that's dug out and packed hard instead of raked level, because most cracking starts when the ground underneath settles. Then get the drainage right so water runs off and not under, cut the control joints on time so any cracks land in them, and stay off the slab while it cures. Concrete can still crack, but those steps decide where and how much.

Service areas

We're based in Chino and work across the Inland Empire and the east San Gabriel Valley, including the cities listed here and plenty more. If yours isn't listed, call (909) 479-6302 or send the form.

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