Foundation repair
At a glance: The company says it handles foundation repair in San Diego County with methods that include epoxy injection, grade beams and caissons.[1] Method choice belongs in a site-specific design; this page explains the public description, not a repair plan for a particular house.
What the company offers
Unlimited Drilling & Foundations Inc says it specializes in all aspects of foundation repair, and it names epoxy injection, grade beams and caissons among the methods it uses.[1][2] The home page also frames San Diego soil types and earthquake exposure as reasons owners ask about slab cracks and settlement.[1]
Those methods are standard tools in foundation repair, but they are not interchangeable. Epoxy injection can bind a crack in concrete; the company itself has written that injection does not, by itself, address movement coming from outside the immediate crack.[3] Grade beams and caissons are structural elements that transfer load to better-bearing soil or rock, and they belong in a design prepared for the specific site, usually under a civil or geotechnical engineer’s direction.
When repair is a question rather than a slogan
The company asks, on its home page, how a property owner is supposed to know whether a minor slab crack is a small issue or a sign of a larger problem, and it answers that it depends on location, house type and placement.[1] That caution is worth taking seriously. Cosmetic cracks, shrinkage cracks and structural movement can look similar to an untrained eye. A useful first step is a documented inspection, followed by advice from a licensed professional who will actually look at the building.
How a typical job is organized (generally)
In California, work that goes beyond minor patching often needs a soils or structural recommendation, a city or county permit, and inspections.[4][5] The contractor’s license authorizes the firm to contract for work within its classifications; it does not replace the permit.[6][4] Owners should expect a written contract that describes the method, the engineer of record if one is required, the access plan, and how spoils will be removed. The company lists dump-trailer and compact equipment among its resources, which is relevant on sites where a full-size rig will not fit.[7]
What this article is not
It is not a diagnosis of any address, and it is not a cost quote. The company’s own cost article, dated 9 August 2019, lists size, time and extra equipment or materials as price drivers and does not publish a unit price.[3] Anyone comparing bids should compare methods and engineering assumptions, not only a bottom-line number.
Questions readers ask
Does epoxy injection always fix a slab crack?
No. Even the company has written that injection bonds a crack but does not by itself address problems outside that crack.
Do I need an engineer?
Often yes on structural or hillside work. The permit agency and the method determine when a design professional is required.
Is this professional advice?
No. It is general information about a contractor and a construction topic.
Related articles
- Signs a foundation needs work
- Caisson drilling
- Foundation repair cost factors
- Service area
- Unlimited Drilling & Foundations
Notes and sources
- ^ a b c d Best Foundation Repair San Diego (home page). Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ San Diego Foundation Repair. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ a b How Much Does Foundation Repair Cost. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ a b Hiring a Contractor. Contractors State License Board. Retrieved 9 November 2026.
- ^ Planning & Development Services. County of San Diego. Retrieved 9 November 2026.
- ^ Contractor’s License Detail for License # 682396. Contractors State License Board. Retrieved 9 November 2026.
- ^ Equipment and Resources. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.