Prieto Engineering Construction

Septic Company in Los Angeles, California

3.6(57 reviews)
(800) 606-38805180 Alhambra Ave, Los Angeles, CA 90032View on Yelp
Prieto Engineering Construction - septic in Los Angeles, CA

Customer Reviews

3.6
out of 5
57 reviews

Based on Yelp ratings

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About Prieto Engineering Construction

Prieto Engineering Construction is a Los Angeles-based provider that combines septic services with excavation and masonry capabilities, a combination that's genuinely useful for projects involving system installation or major repairs. They hold a 3.6 rating from 57 reviews, which reflects a broader and more varied customer base than smaller niche providers. Los Angeles County's enormous size and mix of urban, suburban, and hillside properties creates demand for contractors who can handle the civil and construction side of septic work, not just the pump truck. Reach them at (800) 606-3880.

Services

Masonry/Concrete
Septic Services
Excavation Services

Services & Process

Prieto's core strength is in construction-heavy septic and drainage work. Excavation services mean they can dig out and replace failing drain fields, install new septic tanks, or access buried infrastructure without subcontracting that work to another crew. Masonry and concrete capabilities are useful when projects involve retaining walls, concrete tank installations, or surface restoration after excavation. Septic services cover the full lifecycle from initial installation through repairs and eventual system replacement.

Service Area

Prieto Engineering Construction serves the greater Los Angeles area, including communities across LA County where septic installation, drain field repair, or construction-integrated septic work is needed. Their toll-free number at (800) 606-3880 suggests they cover a wide geographic range within the region. Areas with hillside properties, older systems, or new construction needs are particularly well-served by their combined skill set.

Frequently Asked Questions

When does a septic system need full replacement versus repair?
Drain field failures, structural tank damage, or systems that repeatedly fail despite pumping and maintenance often indicate the need for full replacement. A proper inspection and soil assessment will reveal whether a targeted repair can extend the system's life or whether a new installation is the smarter long-term investment.
Does installing a new septic system in Los Angeles require permits?
Yes, septic system installation in LA County requires permits from the local environmental health department, and the work must meet specific setback and soil requirements. Working with a contractor experienced in the local permitting process helps avoid delays and costly revisions.
What is a drain field and how do I know if mine is failing?
The drain field, sometimes called a leach field, is the network of perforated pipes buried in the soil that disperses treated wastewater from the septic tank. Signs of failure include soggy ground above the field, sewage odors in the yard, or slow drains that persist even after the tank has been pumped.
Can excavation damage be avoided when repairing a septic system?
Some level of excavation is usually unavoidable for major repairs or replacements, but an experienced contractor minimizes surface disruption and restores the area after work is complete. Concrete and masonry capabilities on the same crew make surface restoration cleaner and faster.
How long does a septic system installation typically take in LA County?
Depending on permit timelines, soil testing requirements, and site complexity, a full installation can range from a few days of active work to several weeks when accounting for the permitting process. Hillside lots or sites with challenging soil conditions may add time to the project.
What's the difference between a septic tank and a cesspool?
A septic tank is a watertight chamber that separates solids and liquids before releasing effluent to a drain field for further treatment. A cesspool is an older, simpler pit that allows liquids to seep directly into the surrounding soil, which is now prohibited in most jurisdictions and typically needs to be replaced with a compliant system.

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