Licensed septic contractors in Wilmington, Los Angeles, CA

1 septic contractor holds an active licence on the Contractors State License Board (CSLB) register in Wilmington, checked 4 Nov 2026: 1 licensed 10 years or more, 100% bonded and 1 with a complaint or board disclosure on record. Ranked by a published formula; nobody pays to move up.

Active licences
1
Median time licensed
19.8 yrs
Bonded
100%
Lead-Safe certified
0

Filled tags sit at the business's Google location; hollow tags show its mailing ZIP code only. Each tag is the theoPros score.

Ranked list

Showing 1 of 1

  1. 1

    A & J Plumbing and Rooter

    Wilmington, CA · CSLB B, C36, C42 #889571 · licensed 20 yrs

    • Licence active
    • Bonded
    • Workers' comp

    1 CSLB disclosure in the last 10 years

    50No Google reviews yetFull report

Questions people ask about septic contractors in Wilmington

How many licensed septic contractors are in Wilmington?

1 septic contractors hold an active Contractors State License Board (CSLB) licence with a mailing address in Wilmington, checked on 4 November 2026. 1 of them have been licensed for 10 years or more.

Does a septic contractor need a licence in California?

Yes, when the whole job, labour and materials, costs $1,000 or more or needs a permit. Below that, California's minor-work exemption (B&P Code 7048) applies, but only if they work alone. Look for an active C-42 licence.

How do I check a septic contractor's licence in Wilmington?

Ask for the licence number and look it up on the CSLB website, or search this page. Every septic contractor listed here was matched to an active licence on the CSLB register.

Which septic contractors rank highest in Wilmington?

By our published formula (years licensed, complaint record, bond and insurance, and Google reviews), the top three are A & J Plumbing and Rooter (50). Paying or claiming a listing never changes the order.

How much do septic contractors charge in Wilmington?

Septic contractors in the Los Angeles-Long Beach-Anaheim metro earn a median $34.19 an hour (BLS, May 2025); contractors typically bill about twice the wage to cover insurance, overhead and profit.

Do I need a lead-safe certified septic contractor in Wilmington?

If your home was built before 1978 and the work disturbs paint, yes: the law requires a firm certified lead-safe by the US Environmental Protection Agency. 70% of homes here were built before 1980 (US Census, ACS 2024 1-year), and 0 of the 1 licensed septic contractors listed are certified.