Prieto Engineering is a licensed and certified Los Angeles subterranean contractor and we specialize in work related to the underground.

We handle the site evaluation and preparation, as well as obtaining the necessary permits required for a given project.

When it comes to a project involving the subterranean, the structural engineering --which includes geological and geotechnical soil reports-- is taken care of.

Our Knowledge and Experience

Being a subterranean contractor, the knowledge and experience of our staff members is unparalleled and not only helps to make a job cost less for you, but it also makes it less time consuming.

Free Quote

Feel free to click on the GREEN BUTTON above on the left-hand side of the page and schedule a free site evaluation.

We can also be reached at 323-666-2396 or

Please don't hesitate to contact us.