Retaining walls
At a glance: The company lists retaining walls, including block and poured concrete, among its San Diego County services and notes that design varies with the site and the engineer.[1][2] Drainage and footing design are part of a competent wall, not extras.
Types the company mentions
The official site discusses concrete retaining walls, block walls and wood retaining walls, and it notes that the design of a concrete wall can vary with site conditions and with the engineer designing the wall, including footing size and a choice between block and poured-in-place construction.[1][2] That is a reasonable high-level menu. It is not a catalog of proprietary wall systems, and this wiki does not add brand-name segmental products the company has not named.
Why the engineer’s plan comes first
A retaining wall is a structure that holds soil. Height, surcharge from a driveway or a slope above, drainage behind the wall, and expansive-soil conditions all change the footing and the steel.[3] Building a wall “like the neighbor’s” is a common way to get an undersized footing or a wall with no drain. The company’s own home-page language already points to the engineer and the site, which is the right order.[1]
Drainage is part of the wall
The firm also offers drainage work, including French drains and concrete swales, and it groups drainage with slope stabilization.[1][4] A wall without a way for water to leave the backfill can fail even if the concrete looks sound on day one. Owners should ask where the drain outlets, how it will be inspected, and who is responsible if a neighboring lot is affected.
Choosing a contractor
The company has published advice about choosing a block-wall contractor and points to experience, equipment and materials.[1] California owners should also check the live license, confirm classifications, and get a written contract.[5][6]
Questions an owner should ask in writing
A useful retaining-wall bid names the wall type, the exposed height, the buried footing or stem, the drainage (including filter fabric, drain pipe and outlets), the backfill material, the finish, and whether an engineer’s plan and a permit are included.[3] It should also say how the crew will reach the work and where excavated soil will go. The company’s official pages already point to site conditions and the engineer as design variables, which is the right frame.[1][2]
Wood walls, block walls and poured concrete walls age differently and have different inspection paths. This wiki does not rank them, because the choice depends on height, surcharge, soils, appearance and the approved plan. A short garden seat wall and a wall that holds a driveway are not the same product, even if both are called retaining walls on a marketing page.[2]
Owners comparing contractors should also verify the live license and confirm who is on the contract.[5][6] Experience claims and equipment lists are relevant after those basics are in place, not instead of them.
Questions readers ask
Does the company pour concrete walls and lay block?
It describes both, along with wood walls, on its official pages.
Is a permit required?
Often yes, especially above certain heights or when the wall is structural or close to a property line. Check the city or county.
Can this page size my wall?
No. Wall sizing is an engineering task.
Related articles
- Slope stabilization
- Drainage
- Hiring a California foundation contractor
- Service area
- Unlimited Drilling & Foundations
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.
- ^ a b c d Retaining Walls. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ a b Planning & Development Services. County of San Diego. Retrieved 9 November 2026.
- ^ Drainage. Unlimited Drilling & Foundations (unlimiteddrilling.com). Retrieved 9 November 2026.
- ^ a b Hiring a Contractor. Contractors State License Board. Retrieved 9 November 2026.
- ^ a b Contractor’s License Detail for License # 682396. Contractors State License Board. Retrieved 9 November 2026.