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Groundworks

4.4
124 Verified Reviews
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94% Recommended

31 Years In Business

Company Details

  • Verified Licenses

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Contact

Serving You Locally
Ontario, CA 91761
https://www.groundworks.com/

Hours

  • Mon: 4:00 AM - 8:00 PM
  • Tue: 4:00 AM - 8:00 PM
  • Wed: 4:00 AM - 8:00 PM
  • Thu: 4:00 AM - 8:00 PM
  • Fri: 4:00 AM - 8:00 PM
  • Sat: 5:00 AM - 8:00 PM
  • Sun: 7:00 AM - 8:00 PM
View All Details & Credentials

Service Details

  • Residential Work
  • Commercial Work
  • Small Jobs Welcome

Areas of Expertise

  • Foundation Repair
  • Crawlspace Repair
  • Concrete Lifting
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Warranty Offered
  • Credit Cards Accepted

Ratings

4.4
124 Verified Reviews
  • 5
    29
  • 4
    7
  • 3
    2
  • 2
    1
  • 1
    2

Highly rated for

  • Quality
  • Customer Service

Reviews

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Showing 1-10 of 124 results
5.0 Eric S. Whittier, CA
3/31/2025

Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project.

5.0 Jessica Z. Temecula, CA
12/10/2024

Knowledgeable, friendly, honest and thorough -- best investment is to protect one's asset including stabilizing the foundation.

5.0 David C. Ontario, CA
4/13/2019

they are responsible and hardworking

5.0 Javier E. Roseville, CA
8/25/2018

5.0 Bob K. Phoenix, AZ
11/13/2017

It was amazing to see how accurate they were in leveling my concrete slab. It's been 9 years and my shed slab is still level,

0.50 Deborah E. San Jose, CA
11/3/2016

A combination of poor supervision, indifference and incompetence resulted in massive damage of my home. Water lines and heating coils damaged resulting in loss of use. Foundation severely damaged by incorrect lifting. Nice crew but unsupervised. Contract offers no consumer protection. Devastating to suffer this major loss.

4.0 Clinton A. Cayucos, CA
2/26/2016

It was good working with them got the job done properly.

4.5 Dan C. Corning, CA
10/18/2013

Very efficient, on time, very knowledgeable

5.0 Deena C. Pasadena, CA
8/2/2013

Very professional, and the workmanship was excellent

N/A Jim L. Tucson, AZ
8/14/2012

Engineering was not satifactory to me.

Response from Company:

Notice the half star rating was based solely on Engineering not satisfactory to him, not one word about the quality of the products nor performance of our trained crews. City Engineering and Permitting both approved and signed off on the work performed as completed operations were up to code and industry standard. All products performed as required, job was a success. Client was unhappy due to the fact our foremen couldn't provide a vector diagram to show unilateral forces at the job. Company, not foremen, provided vector diagram which still didn't satisfy client.

Showing 1-10 of 124 results Showing 0 of 0 results
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Photos

Groundworks
6
Crawl Space
4
Basement
5
Concrete
5
Foundation

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