Loading...
Serving Ontario, CA and surrounding areas. (909) 738-1803
OT Ontario Masonry is a licensed masonry contractor serving Chino Hills, CA, with experience in outdoor kitchen masonry, retaining walls, and driveway pavers for the city's hillside properties and 1980s-to-1990s residential lots. We have served San Bernardino County and the Inland Empire since 2020, and we respond to new project inquiries within one business day.
Chino Hills's long, warm summers and large backyard lots make outdoor kitchen installations one of the most requested masonry projects in the city - and the hillside views that many properties offer make them worth doing right. A properly built masonry outdoor kitchen uses concrete block with stone or tile veneer, which holds up to the Inland Empire heat far better than wood or metal frames. See our full outdoor kitchen masonry service for materials, layouts, and options suited to Chino Hills properties.
Sloped and tiered lots are the norm throughout Chino Hills, and retaining walls on these properties face constant lateral pressure from expansive clay soils that swell every rainy season. Walls built in the 1980s and early 1990s without adequate drainage behind them are the most likely to tilt, crack, or fail - and rebuilding with proper drain rock and perforated pipe is the only lasting fix.
Many original Chino Hills driveways - poured in the late 1980s and early 1990s - are now cracked and heaved from decades of clay soil movement and intense summer heat. Interlocking pavers are a better fit for sloped Chino Hills lots than replacement poured concrete because individual units flex with soil movement rather than cracking across the full surface.
Entry pillars, garden walls, and outdoor fireplace surrounds in natural or cut stone add lasting curb appeal and structural value to Chino Hillsproperties where median home values are well above $700,000. Stone features also complement the hillside landscaping common throughout the city in a way that wood or metal structures typically do not.
Privacy and property boundary walls are a standard feature in Chino Hills's residential neighborhoods, and block walls built in the late 1980s are reaching the age where mortar joint erosion, cap block cracking, and base movement from clay soil are visible problems. Rebuilding a block wall correctly - with proper footing depth and soil compaction - is the only way to get another 30 years from it in this climate.
Homes in Chino Hills built on graded hillside pads over expansive clay soils can develop foundation cracks or settling over time as that soil moves through wet and dry cycles. Sticking doors, sloping floors, or diagonal cracks running from window corners are common early warning signs. A masonry contractor can assess the extent of movement and recommend the appropriate repair before the issue progresses further.
Most homes in Chino Hills were built between the late 1970s and the mid-1990s, which means the majority of the city's driveways, retaining walls, block fences, and concrete flatwork is now 30 to 45 years old. That is the age range where surfaces that looked fine a decade ago start failing visibly - particularly on hillside lots where expansive clay soils have been cycling through 30 or more wet and dry seasons. The graded pads that Chino Hills's hillside lots sit on put extra stress on drainage systems and retaining structures every time heavy rain arrives, and the walls and flatwork that did not have adequate drainage installed originally are the first to show the damage.
The climate adds consistent pressure. Summer temperatures in Chino Hillsregularly climb past 95 to 100 degrees, which dries out mortar and sealants faster than in coastal areas. Santa Ana wind events in the fall can gust past 60 mph and strip caulking, shift unfixed cap blocks, and expose any masonry that was already weakened. Parts of the city are also designated as Very High Fire Hazard Severity Zones by CAL FIRE, which means proper chimney maintenance and ember-resistant features are not just cosmetic - they carry real safety implications for homes near the Puente Hills and Chino Hills ranges.
Our crew works throughout Chino Hills regularly, and we understand the local conditions that affect masonry work here. Structural masonry projects in the city - including retaining walls over 4 feet, outdoor kitchen structures, and block wall replacements - are permitted through the City of Chino Hills Building and Safety Division. We are familiar with the permit process here and include that timeline in our project planning from the start.
Chino Hills is almost entirely residential, and the city's layout follows the rolling terrain of the Puente and Chino Hills ranges. Most of the residential streets branch off Grand Avenue and Peyton Drive, which are the main east-west corridors through the city. Properties near Chino Hills State Park on the western edge tend to have the steepest lots, while homes near The Shoppes at Chino Hills and the Carbon Canyon Road corridor are generally on more gradual terrain. We adjust our approach to site access, drainage, and base preparation based on the specific lot conditions we find.
We also serve homeowners in neighboring Ontario, which sits to the west and is our home base, as well as in Chino, directly adjacent to the north, where we take on masonry projects of all sizes.
Call us at (909) 738-1803 or submit the estimate form on this site. We respond to all new Chino Hills inquiries within one business day. No measurements or photos are required before the initial call - just describe the project and we will guide you through what we need.
We visit the property to assess the scope, the lot conditions, and any drainage or soil issues that affect the project cost. On Chino Hillshillside lots, this step matters - the condition of the slope and the existing drainage behind a retaining wall directly affect what a rebuild actually requires. The written estimate you receive covers the full scope.
For projects that require a City of Chino Hills permit, we handle the application and schedule work around the inspection calendar. Most outdoor kitchen structures, retaining walls over 4 feet, and new block walls require a permit - we factor that into the timeline upfront so there are no delays once work begins.
When the masonry work is finished, we walk through the completed project with you before leaving. The site is cleaned and cleared of materials, staging, and debris. For permitted projects, we stay through final inspection so you have everything closed out before we go.
We serve Chino Hills, CA regularly and know what hillside lots, clay soils, and 1980s-to-1990s construction require. Fill out the form and we will get back to you within one business day.
(909) 738-1803Chino Hills is a city of roughly 83,000 people incorporated in 1991 and located in the southwestern corner of San Bernardino County, where it borders Los Angeles County and Orange County. The city sits across the rolling terrain of the Puente Hills and Chino Hills ranges, which gives most properties elevated or sloped lots rather than flat suburban pads. The residential character is almost entirely single-family homes - built predominantly between the late 1970s and mid-1990s - with stucco exteriors, tile roofs, and tiered backyards that reflect the hillside topography. There is no traditional downtown; most commercial activity is concentrated near Grand Avenue and around The Shoppes at Chino Hills, the city's main retail center.
The western edge of Chino Hills borders Chino Hills State Park, a large natural area that many residents live alongside, while the eastern side of the city runs toward Carbon Canyon and the border with Orange County. The city has one of the higher median household incomes in San Bernardino County, and homeowners here tend to maintain and invest in their properties over the long term. We serve Ontario and Chino as well, and our crew is on the road throughout this part of San Bernardino County every week.
Build strong retaining walls that hold soil and prevent erosion.
Learn MoreBuild reliable block foundations engineered for lasting performance.
Learn MoreChino Hills lots are hilly, the soils move, and most homes are hitting the 30-to-40-year mark. If your retaining wall, driveway, or outdoor masonry needs attention, call us today and we will come out and assess it.