RCM Rancho Cucamonga Masonry brings brick repair, concrete block walls, and driveway pavers to homeowners throughout Ontario, CA. We have worked in this area since 2020and understand how the city's diverse housing stock, from older downtown homes to newer south-side subdivisions, shapes what each job actually requires. Every inquiry gets a response within 1 business day.

Ontario's hot summers and clay-heavy soils put brick and mortar through hard cycles every year. Whether it is crumbling joints on a mid-century ranch home near downtown or stair-step cracks on a newer subdivision wall, getting brick repair done early keeps a small problem from spreading across an entire wall.
Block walls are the standard for property boundaries and backyard enclosures across Ontario, and most of the city's mid-century ranch homes have original block fencing that is now 40 to 60 years old. We repair leaning or cracked sections and install new block walls built to current code.
Ontario's clay soil expands when winter rains arrive and shrinks when summer heat sets in - that cycle cracks poured concrete driveways over time. Paver driveways flex with that movement better than solid concrete and allow individual sections to be lifted and releveled if the ground shifts.
Hillside lots and grade changes in Ontario's older neighborhoods near downtown often need proper retaining walls to prevent erosion and hold landscaping in place. A wall that is undersized for the soil pressure behind it will fail - we build to the load, not just the look.
Craftsman bungalows and Spanish Colonial Revival homes near Euclid Avenue were built in the 1920s and 1930s, and their original brick, stucco, and mortar work now requires restoration techniques suited to older materials. Using modern high-strength mortars on these homes can crack the original soft brick, so matching the right mix to the existing masonry matters.
Ontario's combination of clay soil, low annual rainfall, and occasional flash flooding creates conditions where foundation movement is a real concern. If doors or windows in an older Ontario home suddenly stick or diagonal cracks appear in interior walls, a masonry foundation evaluation is a reasonable first step.
Ontario has one of the most varied housing stocks in the Inland Empire, ranging from Craftsman bungalows built in the 1920s near the historic Euclid Avenue corridor to post-war ranch homes from the 1960s and 1970s and newer two-story stucco subdivisions on the south and east edges of the city. Each era of construction has its own masonry profile and its own failure points. Original single-coat stucco on pre-war homes is more fragile than modern applications and requires different repair materials. Block walls on 1960s ranch homes are now 50 or more years old and often show cracking from decades of clay-soil movement. Newer tile-roof homes from the 1990s are reaching the age where original mortar and exterior coatings need their first serious attention.
Ontario summers regularly push past 100 degrees, and that heat accelerates the breakdown of mortar and exterior sealers faster than in cooler coastal areas. When the winter rains arrive, Ontario's clay-heavy soils absorb water and expand, then shrink again as things dry out, shifting driveways, retaining walls, and foundations with every cycle. The City of Ontario Building and Safety Division requires permits for structural masonry work, and a licensed contractor who knows local requirements keeps your project on the right side of code from the start.
Our crew works throughout Ontario regularly, and we understand the local conditions that affect masonry work here. The City of Ontario Building and Safety Division is where we pull permits for structural work, and we know which jobs require a permit and which do not. Ontario is a working city with a wide range of property types, from owner-occupied homes where residents have lived for decades to rental properties managed by landlords who need reliable contractors who show up and finish the work as quoted.
The neighborhoods nearest to Euclid Avenue, Ontario's historic tree-lined boulevard listed on the National Register of Historic Places, contain some of the oldest homes in the city. Moving south and east toward Ontario Mills and Ontario International Airport, the housing becomes progressively newer and the masonry work reflects that difference. We have worked on both ends of the city and we adjust our approach to what the structure actually needs, not a standard formula.
We serve Ontario and we also cover nearby Montclair, CA directly to the north, where many homeowners face similar clay-soil conditions and aging housing stock. If your property sits between the two cities, we can get to either side without issue.
Call or fill out the form and we get back to you within 1 business day. We confirm your address in Ontario and find a time to visit that fits your schedule.
A mason visits your property, evaluates the masonry, and puts together a written estimate. We will tell you whether the work needs a permit and walk you through the cost before you commit to anything.
We arrive on the agreed date with materials matched to your existing masonry. Most Ontario jobs are finished in one to three days, and we keep the work area clean while we are on site.
We walk the finished job with you before leaving, explain what was done, and tell you what to avoid during the curing window. If anything comes up afterward, we are straightforward to reach.
Call or fill out the form and we will respond within 1 business day. No pressure, no hidden costs, and we know Ontario's different neighborhoods well.
(909) 515-5018Ontario is a city of about 185,000 people in San Bernardino County, sitting roughly 35 miles east of downtown Los Angeles in the heart of the Inland Empire. The city has a distinct historic core centered around Euclid Avenue, a grand boulevard lined with a double row of pepper trees that dates to the late 1800s and is listed on the National Register of Historic Places. The homes and businesses nearest to Euclid include some of the oldest structures in the Inland Empire, many of them built as Craftsman bungalows or in the Spanish Colonial Revival style during the early 20th century. Moving away from that core, the city transitions through mid-century ranch homes, newer planned subdivisions, and a substantial commercial and industrial zone anchored by Ontario International Airport and Ontario Mills.
Ontario's housing stock is one of the most varied of any Inland Empire city, and about half of all housing units are owner-occupied. That mix of longtime homeowners, newer residents, and rental properties means masonry contractors here work on everything from original 1920s brick to 1990s stucco subdivisions. We serve homeowners across all of Ontario, and we also cover Montclair just to the north, where similar housing and soil conditions mean similar masonry needs.
Restore structural integrity and stop foundation damage before it spreads.
Learn MoreBuild solid retaining walls that prevent erosion and support landscaping.
Learn MoreCustom masonry fireplaces designed for beauty, safety, and performance.
Learn MoreAdd natural stone veneer accents that elevate any home or structure.
Learn MoreSturdy concrete block walls for privacy, security, and property value.
Learn MoreSolid block wall foundations engineered to support lasting structures.
Learn MoreCustom outdoor kitchen masonry built for cooking, entertaining, and durability.
Learn MoreBeautiful walkways in brick, stone, or pavers that complement your property.
Learn MoreProfessionally installed brick walls for curb appeal and lasting durability.
Learn MoreCall RCM Rancho Cucamonga Masonry today or submit the form - we respond within 1 business day and we know Ontario's neighborhoods.