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Brand Certified
Groundworks
5.0(221 reviews)
Certified by Groundworks • Oct 04, 2026
Business Details
1850 South Parco Avenue, Ontario, CA
91761, United States
Certified by Groundworks • Oct 04, 2026
(909) 220-5664
Certified by Groundworks • Oct 04, 2026
https://www.groundworks.com/contact-us/
Certified by Groundworks • Oct 04, 2026
About
Certified by Groundworks • Oct 04, 2026
Concrete ContractorFoundation ContractorWaterproofing CompanyGeneral Contractor
Groundworks is Ontario’s premier provider of foundation repair and concrete repair. Serving Ontario, Rancho Cucamonga, Fontana, and the Inland Empire, we specialize in permanent solutions for foundation cracks, sagging floors, and uneven concrete slabs. Our certified experts provide patented piering systems and concrete lifting solutions backed by written warranties. Whether you’re dealing with structural settlement or trip hazards on your property, we offer free, no-obligation inspections to protect your home. Trust the local San Bernardino pros to stabilize your foundation—schedule your free estimate today!
Details
- Onsite servicesAvailable
- Wheelchair accessible entranceAvailable
Location
Certified by Groundworks • Oct 04, 2026
Hours
Certified by Groundworks • Oct 04, 2026
Monday4:00 AM - 8:00 PM
Tuesday4:00 AM - 8:00 PM
Wednesday4:00 AM - 8:00 PM
Thursday4:00 AM - 8:00 PM
Friday4:00 AM - 8:00 PM
Saturday5:00 AM - 8:00 PM
Sunday7:00 AM - 8:00 PM
Products & Services
1 list · 3 items
Explore offerings from Groundworks on 1850 South Parco Avenue in Ontario, with popular services available at this location.
Reviews
5.0
221 reviews
5 stars
217
4 stars2
3 stars0
2 stars0
1 star2
- NMNancy MeirSep 24, 20265.0The three workers, Dylan,Seth and Tim did excellent work for us. They had great work ethics. This job required walking up and down my cellar and outside steps with heavy loads of cement,stone and concrete, bucket after bucket all day long. Always smiles on their faces. They were respectful to us and our home mindful of floors and doorways and dust.
- RDRussell DouthitSep 22, 20265.0Damage and Emil did a great job today installing the telljacks and fixing the cracks in the foundation. Enjoy working with them both very informative about the job they did . Very good guys ,thank you
- DMDonald MercierSep 22, 20265.0Kristian was very thorough and meticulous in his inspection. He explained his findings and proposed fix in a way even i could understand. It was a pleasure working with him and if the rest of the people at Groungworks are like him I know I'll have a pleasant experience.
- RPRaul PinochetSep 22, 20265.0Kristian Steel from Groundworks was great to work with. He went over everything thoroughly, explained the entire process clearly, and was very professional and helpful. He took the time to answer all my questions and made sure I understood everything before moving forward. Great experience overall. Highly recommend Kristian!
- MFMatthew FoxSep 19, 20265.0Toy and Mikey H. were awesome! I had simple foam slab jacking work done due to animals tunneling under the slab and subsequent minor cracking, and these two gentlemen were polite, thorough, and talked me through all the steps they were doing as they worked. They treated each other like brothers, and Toy took pride in training Mikey H. further as he was newer to the job. They did great work. I could not have asked for better workers for the job!
Frequently Asked Questions About Groundworks
What services does Groundworks offer?
Groundworks provides infrastructure and trenchless sewer repair services including foundation repair, foundation underpinning, concrete leveling, concrete repair, soil stabilization, and infrastructure rehabilitation.
What areas does Groundworks serve?
Groundworks serves Southern and Northern California, Nevada, and Arizona, catering to commercial, transportation, seaport, airport, and multi-family dwelling markets.
Where is Groundworks located?
Groundworks is located at 1850 South Parco Avenue, Ontario, CA 91761, United States.
What are the business hours for Groundworks?
Groundworks operates Monday to Friday from 4:00 AM to 8:00 PM, Saturday from 5:00 AM to 8:00 PM, and Sunday from 7:00 AM to 8:00 PM, with some holidays closed or reduced hours.
Does Groundworks accept financing and what payment options are available?
Groundworks accepts financing and payments via American Express, Cash, Check, Discover, Mastercard, and Visa.
Can I schedule a free inspection with Groundworks?
Yes, you can call to schedule a free inspection or book online through their website.
Is Groundworks wheelchair accessible and veteran-owned?
Groundworks has a wheelchair accessible entrance and is veteran-owned.
How can nearby places like EagleLIFT, Inc. help customers visiting Groundworks?
EagleLIFT, Inc. is a nearby engineering and construction services company which might collaborate with or provide complementary services to Groundworks customers looking for contracting or engineering assistance.
What nearby stores could customers visit when coming to Groundworks?
Customers visiting Groundworks can also stop by the nearby Groundworks home improvement store or Pep Ca hardware store for supplies and tools related to construction and repairs.
Are there public services near Groundworks that might be useful to customers?
Yes, the Ontario Fire Department Station 3 and Southern California Edison offer nearby public safety and utility services which could be important for customers in emergencies or for managing electrical needs related to repair projects.
Brand Certified Facts from Groundworks
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Certified October 04, 2026Yext Knowledge Graph
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