
Whittier Concrete Company provides concrete contractor services in Ontario, CA, including concrete floor installation, driveway replacement, patio construction, and flatwork for homes across the city. We work on older mid-century ranch homes, newer subdivisions, and properties near Ontario International Airport. Every project is quoted in writing and backed by a contractor's license.

Many of Ontario's mid-century homes - particularly the ranch-style houses built in the 1960s and 1970s - have original garage floors and patio slabs that are now cracked, spalling, or simply worn out from decades of use and the Inland Empire's extreme heat cycles. Our concrete floor installation work replaces those aging slabs with properly reinforced, graded surfaces that handle the clay soil movement and temperature swings common in this area.
Ontario is a car-dependent city where nearly every home has a driveway, and those driveways get daily use from vehicles, California sun, and the stress of clay soils expanding in wet winters and shrinking in dry summers. A cracked, uneven, or oil-stained driveway looks bad and reduces curb appeal, but replacing it with a new reinforced slab brings the property back up to standard and gives homeowners a clean, level surface they can park on without worry.
Parts of Ontario - particularly on the northern and eastern edges of the city - sit on sloped lots that need retaining walls to hold back soil and manage water runoff during winter rains. Many of the older walls on these properties are showing age, and a failing retaining wall is a real structural problem that can undermine driveways, patios, and even home foundations if it collapses. We build reinforced concrete retaining walls that meet city code and last decades.
Ontario's warmer climate and working-class neighborhoods mean homeowners want durable outdoor surfaces that look good but do not require constant upkeep. Stamped concrete gives you a patio, walkway, or driveway that looks like natural stone or pavers but holds up better in the heat and requires less ongoing maintenance. The patterns and colors can be customized to fit any home style, from the older stucco ranch houses near Euclid Avenue to newer tract homes on the south side.
Ontario's long, hot summers and mild winters make outdoor living practical year-round, and a concrete patio gives homeowners a usable, low-maintenance space that can handle the temperature extremes the Inland Empire throws at it. Older homes in Ontario often have small or nonexistent patios, and adding a new poured slab creates real functional outdoor space without the ongoing issues of wood decking in a climate that regularly hits 100 degrees.
Ontario sits in the Inland Empire, where summer temperatures regularly exceed 100 degrees Fahrenheit from June through September. That kind of sustained heat accelerates the breakdown of concrete surfaces - cracking, spalling, and surface deterioration all happen faster here than they would in cooler coastal areas. Add in Ontario's expansive clay soils, which swell when wet and shrink when dry, and you have a set of conditions that puts real stress on driveways, patios, and any concrete slab that has been in the ground for more than a few years. A large share of Ontario's residential housing was built between the 1960s and the early 2000s, which means many properties have original flatwork that is now 30, 40, or even 60 years old - long past the point where repair makes sense and well into the range where replacement is the only option.
The city's older neighborhoods near downtown and Euclid Avenue have homes from the 1920s through the 1950s, and those properties often have aging stucco, original sidewalks, and single-car driveways that were poured when the streets were first laid out. The newer subdivisions on the south and east sides of the city - mostly built in the 1990s and 2000s - have larger homes, two- and three-car driveways, and concrete work that is now entering the 20- to 30-year age range where resurfacing or replacement becomes necessary. A contractor who has worked in Ontario knows that every neighborhood has different flatwork challenges, and we size the job based on what we see when we walk the property - not what a generic online estimate says the work should cost.
We have worked on properties throughout Ontario for years, from the older streets near Euclid Avenue - the historic tree-lined boulevard that runs through the heart of the city - to the newer subdivisions on the south side near Ontario Mills. Euclid Avenue is one of Ontario's most recognizable landmarks, and the neighborhoods around it have some of the city's oldest homes, many dating back to the 1920s and 1930s. Those homes often have narrow driveways, original sidewalks, and stucco exteriors that require careful planning when it comes to any flatwork replacement.
Ontario International Airport is another major reference point - many residents work in or near the airport and its surrounding logistics hubs, and the neighborhoods close to the runways are a mix of mid-century single-family homes and small multi-family buildings. The city's grid street layout and proximity to the 10, 15, and 60 freeways make access straightforward once you know the area.
We also serve Pomona and Pasadena, two nearby cities in the San Gabriel Valley and Inland Empire with similar housing stock, clay soils, and the same summer heat conditions that define concrete work in this region.
We respond within 1 business day and set up a free on-site visit at a time that works for you. Ontario properties range from flat lots near downtown to hillside parcels on the city's northern edge, so we always visit in person to measure the area, check soil conditions, and note any grading or drainage issues that affect the scope.
We walk the property, measure the work area, and note any tree roots, clay soil conditions, or existing damage that affects the job. The written estimate breaks out demolition, base prep, concrete, reinforcement, and finishing so you know what each part costs. Most Ontario concrete work requires a city permit, and we explain what is needed and who pulls it.
We pull any required permits, remove the old concrete, prep and grade the base, and pour the new slab. Concrete in Ontario's extreme heat requires curing procedures - shading, misting, or covering - to keep it from drying too fast and weakening the surface. We walk you through what to expect at each stage and give you a curing timeline before we leave the site.
We walk the finished slab with you and explain what the curing period looks like - when you can walk on it, when you can drive on it, and how to care for it long-term. The site is cleaned and ready for use. Concrete reaches full strength in 28 days, but most Ontario homeowners can park on their new driveway within seven to ten days.
Serving Ontario homeowners with concrete floors, driveways, patios, and flatwork. Free written estimates, permitted work, and no-pressure quotes.
(562) 358-3090Ontario is a city of about 185,000 people in San Bernardino County, roughly 35 miles east of downtown Los Angeles. It sits in the heart of the Inland Empire and is home to Ontario International Airport, one of the busiest cargo and passenger airports in Southern California. The city has grown steadily over the past few decades, and its housing stock reflects that growth - from Craftsman bungalows and Spanish Colonial homes near downtown to mid-century ranch houses built in the 1960s and 1970s, to newer two-story stucco subdivisions built in the 1990s and early 2000s. Euclid Avenue - a historic tree-lined boulevard listed on the National Register of Historic Places - runs through the center of the city and anchors many of Ontario's oldest and most established neighborhoods.
Ontario's climate is typical of the Inland Empire: hot, dry summers that regularly exceed 100 degrees, and mild winters with occasional overnight frost. The city's expansive clay soils expand when wet and shrink when dry, and that seasonal movement is one of the main reasons driveways and concrete slabs crack here even without freezing temperatures or tree roots. We also work in El Monte and West Covina, both in the San Gabriel Valley with older postwar housing and the same clay soil conditions we see throughout Ontario and the surrounding region.
Durable concrete driveways poured and finished to last for decades.
View serviceCustom concrete patios designed for outdoor living and entertainment.
View serviceDecorative stamped concrete that mimics stone, brick, or wood at a fraction of the cost.
View serviceSafe, code-compliant concrete sidewalks for residential and commercial properties.
View serviceSmooth, reinforced concrete garage floors built to handle heavy loads.
View serviceStained, polished, and textured concrete surfaces that elevate any space.
View serviceSolid concrete retaining walls that control erosion and define your landscape.
View serviceProfessional concrete floor installation for homes, shops, and commercial spaces.
View serviceSlip-resistant concrete pool decks that are beautiful and easy to maintain.
View serviceStructurally sound concrete steps and staircases built for safety and curb appeal.
View servicePrecision-poured concrete slab foundations for new construction projects.
View serviceFull foundation installation services for residential and commercial builds.
View serviceHeavy-duty concrete parking lots engineered for high traffic and longevity.
View serviceAccurately placed concrete footings that provide a stable base for any structure.
View servicePrecise concrete cutting and removal using professional diamond-blade equipment.
View serviceServing these cities and communities.
Call us or fill out the contact form for a free written estimate on your driveway, patio, garage floor, or flatwork project.