Find and Invite the Best Commercial Earthwork Contractors in Ontario, CA

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75 Verified Earthwork companies in Ontario, CA

Downtobid vets each subcontractor's specialties, capabilities, and contact details for complete accuracy.

Full Scale Demolition logo

Full Scale Demolition

Fullerton, CA 92832

Full Scale Demolition, Inc. is one of the experienced environmental contractors in California, known for completing over $100 million in interior/soft demolition projects with a commitment to safety, quality, and innovative solutions.

Verified


14 miles from Ontario, CA

Specializations (3)

Higher education

Office Building

Warehouse

Website

Call

WebsiteCall
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Padilla's Company logo

Padilla's Company

San Fernando, CA 91340

Padilla's Company, Inc. is a California-based company that has been providing cost-effective and efficient demolition, excavation, shoring, grading, and drilling services for nearly 30 years. They specialize in both commercial and residential projects and offer a 'one-stop shopping' experience that includes design, pricing, and construction.

Verified


6 miles from Ontario, CA

Specializations (2)

Federal Government

Government

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AMPCO Contracting logo

AMPCO Contracting

Irvine, CA 92617

AMPCO Contracting, Inc. is a multidisciplinary practice that provides demolition, environmental, and earthwork services throughout California and the Western United States. The company, which started in 2004, has grown from a small local contractor to a regional powerhouse with $70 million in annual revenues.

Verified


14 miles from Ontario, CA

Specializations (7)

Education

Infrastructure

Military

Municipal Government

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Cooley Construciton logo

Cooley Construciton

17525 Eucalyptus St, Hesperia, CA 92345

Cooley Construction Inc. is a Southern California-based construction company that offers professional services including grading and paving. Founded in 1976, the company prides itself on its work, reliability, stability, safety, and customer satisfaction.

Verified


Specializations (5)

Education

Higher education

Military

Office Building

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Tri County Development & Construction logo

Tri County Development & Construction

Riverside, CA 92503

Tri County Development & Construction, Inc. (TCDC) is a leader in custom development and underground utility projects in Los Angeles, Riverside, and Orange County, offering services since 2013 in commercial and residential development, including laying underground utilities and concrete and asphalt restoration.

Verified


7 miles from Ontario, CA

Specializations (4)

Federal Government

Government

Hospitality

Office Building

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Elite Earthworks & Engineering logo

Elite Earthworks & Engineering

41571 Date Street, California, CA 92562

Elite Earthworks & Engineering is a Southern California-based construction services company specializing in grading, excavating, and demolition. The company offers a wide range of construction services, from comprehensive site preparation to precision concrete and asphalt paving preparation, and is known for its exceptional customer service and use of industry-leading equipment and technology.

Verified


7 miles from Ontario, CA
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R.J. & J. Construction logo

R.J. & J. Construction

Pomona, CA 91768

R.J. & J. Construction, Inc. is a certified minority and women-owned small business established in 1982 by John and Laurie Bourne, who still manage its day-to-day operations. The company specializes in high-profile construction projects across California, including SoFi Stadium and LAX, with an office and equipment yard based in Pomona, CA.

Verified


6 miles from Ontario, CA

Specializations (14)

Airport

Correctional

Education

Federal Government

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Erosion Control Experts logo

Erosion Control Experts

Moreno Valley, CA 92551

Erosion Control Experts is a veteran-owned business that provides professional erosion control services in Southern California. The company offers a variety of services including hydroseeding, dust control, stormwater compliance, and soil stabilization, and is dedicated to applying best management practices to all projects.

Verified


7 miles from Ontario, CA

Specializations (3)

Federal Government

Government

Office Building

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Gold Construction Services logo

Gold Construction Services

11557 Poema Pl. Ste. 102 Chatsworth, CA 91311

Gold Construction Services (GCS) is a certified Women Business Enterprise and Disadvantaged Business Enterprise offering field and administrative support services such as hand auguring, soil sampling, and geological geotechnical studies to business owners, licensed contractors, corporations, and government agencies.

Verified


6 miles from Ontario, CA
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Pettit Bobcat Service logo

Pettit Bobcat Service

Lomita, CA 90717

Scott Pettit, Owner and Operator of Pettit Bobcat Service began operating Bobcat tractors for his father's company, Leonard L. Pettit Concrete back in 1975. He had a natural talent on the machine and soon other contractors started asking Leonard if they could hire Scott and the tractor for work on their own job sites. Once Scott had a steady stream of contractors requesting work he began Pettit Bobcat Service officially in 1984.

Verified


6 miles from Ontario, CA

Specializations (2)

Education

Office Building

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UBD logo

UBD

CA 91367

UBD Inc. is a demolition contractor based in California, offering services such as soft demolition, hard demolition, building demolition, and site clearing. Incorporated in 2012, the company operates throughout various cities and counties in California, providing services to both private and public work sectors.

Verified


6 miles from Ontario, CA

Specializations (2)

Education

Office Building

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Kisling Construction logo

Kisling Construction

26445 Evergreen Rd. San Juan Capistrano, CA 92675

Kisling Construction is a Southern California-based general engineering contractor specializing in main sewer and water line repair, underground gas line installation, outside fire line services, and emergency excavation/grading services, with a commitment to quickly restoring services and obtaining necessary permits.

Verified


14 miles from Ontario, CA

Specializations (5)

Healthcare

Hospitality

Infrastructure

Office Building

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RCW Construction logo

RCW Construction

3324 Gassen Pl. Los Angeles, CA 90065

RCW Construction, Inc. is a general engineering contractor based in Los Angeles, CA, specializing in a range of contracting services including remedial hillside work, remodeling, grading, and structural work, with over 30 years of experience in complex construction projects.

Verified


6 miles from Ontario, CA

Specializations (1)

Office Building

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Bethco Builders logo

Bethco Builders

San Fernando, CA 91340

Bethco Builders is a construction company with core values of service and integrity, specializing in construction management, consulting, forensic investigations, water intrusion repairs, common area repairs, site repairs, and construction defect remediation. They have a solid background with decades of experience and offer a wide range of expertise in single-family residential, homeowners associations, and commercial properties.

Verified


6 miles from Ontario, CA

Specializations (8)

Education

Federal Government

Financial

Fitness

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Sky Construction Services logo

Sky Construction Services

Desert Hot Springs, CA 92240

Sky Construction Services, Inc. is a family-owned company based in Southern California that specializes in industrial, commercial, and residential construction services. The company offers a range of services including mass grading, rough grading, finish grading, excavation, demolition, dust control, erosion control, dry utilities, and storm drain.

Verified


7 miles from Ontario, CA

Specializations (3)

Hospitality

Municipal Government

Restaurant

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Related Trades

Site Clearing

Grading

Excavation and Fill

Erosion and Sedimentation Controls

Soil Stabilization

What the Early Adopters are Saying About Downtobid

"We have used Downtobid for our ITBs and so far our experience has been very positive. It has saved me time on the initial page turn and I really like the number of responses we're starting to see from our subcontractors!"

Robyn LynnMRI Builders

"The first time our company was able to travel outside Atlanta! Bidding in a new market and wasn't getting any hits on Drywall. Requested a boost and with 5 days I had 2 committed bidders and 1 submission. Using them on my next project."

Zalmy KavkaFounder, ZK Builders

""I love, the personalization of it. You get it more directed towards the contractors that we need. You, make it a little more personal than putting it on Blue Book or Planhub or anything like that. You let us communicate with the subcontractors, so we can narrow it down from what you've already narrowed it down from. We get more, more specific, more detailed quotes, more the correct quotes that we're looking for from you guys as opposed to maybe other places.""

Ryan PastorEstimator at George H. Pastor and Sons General Contracting

What the Early Adopters are Saying About Downtobid

"We have used Downtobid for our ITBs and so far our experience has been very positive. It has saved me time on the initial page turn and I really like the number of responses we're starting to see from our subcontractors!"

Robyn LynnMRI Builders

"The first time our company was able to travel outside Atlanta! Bidding in a new market and wasn't getting any hits on Drywall. Requested a boost and with 5 days I had 2 committed bidders and 1 submission. Using them on my next project."

Zalmy KavkaFounder, ZK Builders

""I love, the personalization of it. You get it more directed towards the contractors that we need. You, make it a little more personal than putting it on Blue Book or Planhub or anything like that. You let us communicate with the subcontractors, so we can narrow it down from what you've already narrowed it down from. We get more, more specific, more detailed quotes, more the correct quotes that we're looking for from you guys as opposed to maybe other places.""

Ryan PastorEstimator at George H. Pastor and Sons General Contracting

FAQs

What is Downtobid and how can it help find Earthwork professionals in Ontario, CA?

Downtobid is a platform that helps you find Earthwork contractors in Ontario, CA and submit bid requests for your projects. You provide project details, and the contractors respond with their bids through the platform.


Requesting bids from Ontario, CA-based Earthwork contractors

You can invite a contractor directly through our platform. Visit the contractor’s profile and click ‘Invite to Bid.’ Fill out the project details, including scope, timeline, and specific needs. Contractors in Ontario, CA will then respond with their bids. It’s often helpful to call contractors after submitting a request, especially if your project is urgent.


Contractor verification process on Downtobid

Downtobid sets itself apart by verifying each contractor through a multi-step process. We use AI to ensure that contractor information, including trades, is accurate. We cross-check details using databases, public records, and Google Maps to confirm that businesses are active and their contact information is up-to-date before listing them.


Essential information for Earthwork project bid requests

When submitting a bid request, include clear details about your project, such as materials needed, deadlines, and any specific requirements. The more specific you are, the better the contractor can assess and quote the job accurately.


Tips for contacting local Earthwork professionals

If your project is urgent, it’s a good idea to call the contractor directly after submitting a bid request. This helps ensure they understand the timeline and scope of work, especially if immediate service is needed.


Managing bids for large-scale Earthwork projects

If you have a larger project and don’t want to contact each contractor individually, you can reach out to us directly. We offer an ITB (Invitation to Bid) platform where you can manage bids from multiple contractors at once.


Expected response times from Ontario, CA contractors

Most Earthwork contractors will respond within 24-48 hours, depending on the complexity of your request. However, response times may vary – so be sure to follow up!

Quick stats about Earthwork companies database in Ontario, CA

Total contractors

365 contractors

Total union contractors

25 union contractors

Total non union contractors

181 non union contractors

Total minority owned businesses

61 minority owned businesses

Total women owned businesses

14 women owned businesses

Average response time

4 days

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