Asphalt Paving in Ontario, CA

Asphalt paving in Ontario covers more than a century of building. The Chaffey brothers laid out the Ontario Model Colony in 1882, with Euclid Avenue as its broad, tree-lined spine, and the city incorporated in 1891. After World War II, defense-industry jobs brought a housing boom that filled the central and northern parts of town with ranch houses. Then, in 1999, the agricultural preserve in the south was rezoned for homes and businesses, and the area now known as Ontario Ranch has been building out ever since. The 2020 census counted 175,265 residents, and the estimate for 2025 is about 187,000.

Older neighborhoods

Many of the postwar driveways north of the 60 Freeway have been resurfaced, patched and sealed several times. When the surface has turned gray and brittle but the driveway is not sinking or rutting, a milled overlay or a sealcoat with crack filling may be all it needs. When there is widespread alligator cracking, the base is done, and we recommend removing the old asphalt and starting over. Older lots also tend to have narrower single-car approaches, so if you want a wider driveway, plan on a conversation with the city about the curb cut.

Ontario Ranch and newer tracts

Newer homes in the south of the city usually came with concrete driveways, but many have asphalt side yards, RV pads, private alleys and HOA streets. Those surfaces are young, so the goal is to keep them that way: seal the asphalt once it has cured, fill cracks while they are small, and watch areas where trash trucks and delivery vans turn. Part of south Ontario is still dairy land, and properties at the edge of the farm areas sometimes have long gravel drives that can be converted to asphalt.

Business and industrial lots

Ontario International Airport, which began as a municipal field in 1929, is one of the busiest cargo airports in the country and the city's largest employer. FedEx and UPS run major freight operations there, and the warehouse districts near the airport and along I-15 are full of truck traffic. Lots in that part of town need heavier sections at truck routes, loading docks and trash enclosures, plus tight scheduling so operations keep running. We pave in phases and restripe once the asphalt has set.

Heat and dust

Ontario's July average high is 93.8 degrees, and the city has recorded 118. Fresh asphalt needs time to cool before traffic, and sealcoat needs moderate temperatures to cure, so summer work starts early in the day. Dust control follows South Coast air district Rule 403: we water grading work and sweep tracked dirt off the street by the end of the day.

Common Ontario jobs, by neighborhood

• Central and north Ontario: overlays and replacements on postwar driveways, crack filling and sealcoating, and repairs where parkway trees have lifted the edge
• Downtown and along Euclid: narrow side drives to rear garages, small commercial lots and alley parking behind storefronts
• South of the 60 and Ontario Ranch: sealing young asphalt, RV pads, HOA streets and private alleys
• Airport and I-15 warehouse districts: heavy-duty patches, truck court overlays, concrete dumpster and dock pads, and restriping

Whatever the job, the estimate covers the base, the drainage and the transitions, not just the surface.

For a free written estimate anywhere in Ontario, call (909) 612-9922 or

Get a Free Estimate

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