Service area
At a glance: The company writes about foundation, wall and drainage work throughout San Diego County, including steep hillside sites.[1] This reference uses that county-level description and does not invent a city-by-city project map.
San Diego County as the stated market
The official site is written as a San Diego County practice. The home page discusses foundation repair, retaining walls and hillside work in San Diego and, specifically, retaining walls in La Jolla and “all over San Diego.”[1] Service and city-landing pages also mention places such as Rancho Santa Fe and La Jolla in page titles and body copy. Those pages are the company’s own marketing, not a municipal vendor list.
This wiki therefore describes the service area as San Diego County, which is the geography the company claims, and it does not publish a separate thin page for every neighborhood name that appears in a title tag.[1]
Why the terrain matters
The company itself points to San Diego soil types, coastal hillside conditions and earthquake country as reasons foundation and retaining-wall work is not generic.[1] That is a fair qualitative point, and it is also the kind of claim every hillside contractor in the county can make. What is locally true is that many lots in the coastal and inland foothills combine fill, expansive soils, steep grades and drainage that can load a wall or a slab if they are not designed and built to an engineer’s plan.[2][3]
A service-area page is not a soils report. Any actual lot needs its own investigation, and cities and the county have their own permit paths for walls, caissons and drainage.[4][3]
What this page does not claim
This wiki does not have a verified list of cities with completed jobs, a radius in miles, or a statement that the firm is pre-approved for work on public works projects. If a bid form asks for that, the company has to supply it.
How place names appear on the official site
Company pages mention San Diego, La Jolla and Rancho Santa Fe in titles and body copy, and they discuss hillside and retaining-wall work “all over San Diego.”[1] Those mentions are marketing geography. They are not the same thing as a municipal vendor list or a verified inventory of completed addresses. This wiki therefore stays at the county level: San Diego County is the market the company claims, and Santee is the published office.[5]
The county includes coastal bluffs, inland foothills, mesa lots and valleys with expansive or fill soils. Permit rules change at city limits. Work inside the City of San Diego usually starts with Development Services; work in unincorporated areas usually starts with County Planning and Development Services.[4][3] A contractor licensed by the state may still need a local business tax certificate or a job-specific permit. None of those local steps is waived by holding license 682396.[6]
Readers should also not assume that “San Diego County” means the company will travel to every parcel in the county on the same terms. Access, travel, spoils disposal and permit fees vary. The official site does not publish a mileage radius or a list of cities it will not serve, so this page does not invent one.[1]
Questions readers ask
Does the company only work in Santee?
The official site describes work across San Diego County, including hillside and coastal examples. Santee is the published office.
Is La Jolla a documented project list?
It appears in the company’s own service copy. This wiki does not treat that as a verified inventory of jobs.
Do I still need a local permit?
Yes. City or county permits are separate from the contractor’s license.
Related articles
Notes and sources
- ^ a b c d e f Best Foundation Repair San Diego (home page). Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ Landslides 101. U.S. Geological Survey. Retrieved 9 November 2026.
- ^ a b c Planning & Development Services. County of San Diego. Retrieved 9 November 2026.
- ^ a b Geologic hazards and hillside development information. City of San Diego Development Services. Retrieved 9 November 2026.
- ^ Contact Unlimited Drilling & Foundations Inc.. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ Contractor’s License Detail for License # 682396. Contractors State License Board. Retrieved 9 November 2026.