Coastal SD Pros Oceanside plumbing directory
Methodology

How this list works — every rule, every date, checkable.

Every company on our Oceanside plumber list cleared the same public, numeric bar. This page states that bar, the ordering rule, the license-verification process, what gets a company delisted, and how this site makes money. Nothing here is a judgment call you have to take on faith — every criterion can be checked against Google and CSLB records yourself.

Google review data: pulled June 20, 2026 CSLB license records: checked July 6, 2026
Checked against CSLB
· Jul 6 2026
The bar

Four requirements. All numeric or on public record.

A company is listed only if it meets all four. As of the July 6, 2026 license check, 11 companies clear the bar.

Serves Oceanside

The company serves Oceanside, CA (ZIPs 92054, 92056, 92057, 92058) per its public business listing.

Source: public Google data

Public Google rating of 4.5 or higher

Ratings are public Google data as of June 20, 2026 — attributed, dated, never altered, and never presented as our judgment.

Source: Google · June 20, 2026

At least 25 Google reviews

A volume floor filters out ratings built on a handful of reviews. Counts are dated to the same June 20, 2026 pull.

Source: Google · June 20, 2026

Active CSLB license with a plumbing classification

The license must show as current and active on CSLB's own record, with a plumbing classification (C-36) on file. Checked July 6, 2026.

Source: cslb.ca.gov · July 6, 2026
The order

Ranked by public Google review volume. That's it.

Once a company clears the bar, its position on the list is set by one number: its public Google review count, highest first, as of the dated pull. We chose review volume because it is the one ordering signal a homeowner can verify in thirty seconds without trusting us — open Google, count the reviews, confirm the order.

Two things that ordering rule is not: it is not our judgment of quality, and it is not an endorsement. Position 1 means "most Google reviews among qualifying companies on the pull date," nothing more. Star ratings can't do this job on their own — nearly every qualifying company sits between 4.7 and 5.0 stars, so rating alone can't separate them honestly.

See the current ranked list on the Oceanside plumber hub.

The verification

How we check a license — a five-step process.

Every license fact on this site comes from CSLB's own public record, quoted verbatim and dated. Here is the exact process we ran on July 6, 2026, for every listed company. You can repeat every step yourself — our check-a-plumber-license guide walks a homeowner through the same fields.

  1. Find the license number from public sources

    California contractors are required to publish their license number on contracts and advertising, so most appear on the company's own website. We collect the number from public sources — the company site, BuildZoom, BBB, or trade directories — never by guessing.

  2. Confirm the record actually belongs to the business

    We open the license on CSLB's Check-A-License and confirm the registered name or DBA, city, phone, or address corroborates the directory business. If we can't confirm the match, we record nothing — an honest blank beats an inferred fact.

  3. Read the license status

    The status line must read "current and active." Anything else — expired, suspended, inactive — fails the bar. What it means to you: only a current, active licensee can legally contract for plumbing work in California.

  4. Check the classification

    The record must carry a plumbing classification — C-36 is California's plumbing specialty classification. What it means to you: a company holding only a general-building (B) license is not licensed as a plumbing specialty contractor.

  5. Record bond and workers' comp status, verbatim

    Contractor bond: CSLB requires a bond on file for the license to be active — a limited fund a wronged homeowner can claim against. Workers' comp: the record shows either an insurance policy (carrier, policy number, dates) or an exemption certifying the contractor has no employees. We quote what the record showed on the check date, including exemptions, and explain both on each profile.

    Every profile page links directly to the live CSLB record — for example, license #982295 for Personal Plumbing Heating & Air Conditioning, the current #1 on the list. If CSLB doesn't publish a field, we render it as "not published — verify on CSLB." We never fill gaps.

Delisting

What gets a company removed from the ranked list.

The bar isn't a one-time gate — it's re-applied at every data refresh. Three things remove a company from the ranked list. When one does, we say so on the list instead of quietly deleting the company.

  1. License expiry, suspension, or revocation

    An active CSLB license is the floor. The day the record stops reading "current and active" at a refresh, the company comes off the ranked list. An approaching expiration date is not a lapse — for example, Magnum Plumbing Company's license #1027259 shows an expiration date of July 31, 2026; as of our July 6, 2026 check the renewal was not yet reflected, and the license remains current and active. We state the date and keep watching — no alarmism, no silence.

  2. Rating-floor breach at refresh

    If a company's public Google rating falls below 4.5 or its review count falls below 25 at a data refresh, it no longer clears the bar and comes off the list until it does.

  3. Closure or acquisition

    If a business closes or its brand is absorbed by another company, the ranked list follows the license — the entity that can actually contract — not the brand name.

Worked example · delisted July 6, 2026

Vets for You Plumbing

On our July 6, 2026 license check, CSLB license #943193 (registered name VETS 4 YOU INC) showed:

  • Status, per CSLB, verbatim: "This license is expired and not able to contract at this time." Expired March 31, 2024.
  • No contractor bond on file — the prior bond was cancelled February 23, 2024.
  • Workers' comp policy cancelled December 15, 2023.
  • The Vets for You brand was acquired by Personal Plumbing Inc — CSLB #982295, current and active, ranked #1 on our list.

Result: Vets for You Plumbing was delisted from the ranked list the same day, and the list went from 12 companies to 11. Its profile page stays up and documents the expired license and the acquisition, because that record is genuinely useful to anyone searching the brand. The acquiring company's record lives on the Personal Plumbing profile. Flag, don't hide.

Refresh cadence

How fresh this data is — honestly.

Every page on this site shows the dates its data came from: Google review data was pulled June 20, 2026, and CSLB license records were checked July 6, 2026. We re-check both against the sources at each data refresh.

What we do not do: monitor licenses continuously or in real time. A license can change status between our refreshes, and we won't know until the next check. That is why every license fact on this site carries its check date, and why the last step before hiring anyone should always be yours: pull the live record on CSLB's Check-A-License. It's free and takes about three minutes — here's exactly how to read it.

How we make money

Two revenue paths. Neither touches the ranked order.

Coastal SD Pros is an independent directory and lead-referral service. Here is the entire business model, in the same place as the methodology — so you can check one against the other.

1

Lead routing

When you submit a request through this site or call our routing line, we route it to a local plumbing pro — and a pro may pay to receive routed requests. Routing is separate from the ranked list: paying for leads does not add a company to the list or move it up.

2

Labeled "Featured Partner" placement (none currently)

In the future, a company may pay for a sponsored placement. Any such placement will be labeled as paid advertising, close to the listing, every time. No company is currently sponsored anywhere on this site.

The promise: sponsorship never changes the ranked order.

The ranked list is ordered by public Google review volume — a number we don't control and therefore can't sell. A sponsored placement, if one ever exists, sits in its own labeled slot. It never buys a position, never reorders the list, and never implies quality, licensing, or insurance. If you ever see this site break that promise, the methodology page you're reading is the receipt to hold us to.

Methodology FAQs

Fair questions about how this works.

No. A company cannot pay to be listed, and it cannot pay to move up. The ranked order is public Google review volume — a number we don't control and can't sell. Money enters this site only through lead routing and clearly labeled sponsored placement, and no company is currently sponsored.

Because nearly every company that clears the 4.5-star floor sits between 4.7 and 5.0 stars, star rating alone can't separate them. Review volume is a public, checkable number that anyone can confirm on Google in thirty seconds. It is a measure of review volume, not our judgment of quality — a position on this list is not an endorsement.

Every CSLB fact on this site was checked against CSLB records on July 6, 2026, and each page shows its data dates. We re-check at each data refresh — we do not monitor licenses continuously, and we never claim to. Before you hire anyone, verify the live record yourself on cslb.ca.gov; it takes about three minutes and our license guide walks through it.

It comes off the ranked list at the next refresh, and we say so rather than quietly deleting it. Example: Vets for You Plumbing was delisted on July 6, 2026 because CSLB license #943193 expired on March 31, 2024. Its profile page stays up and documents the record, because that information is useful to anyone searching the brand.

Coastal SD Pros is an independent directory and lead-referral service, not a licensed plumbing contractor, and does not perform plumbing work. Ratings and review counts are public Google data as of the dates shown and may change. License facts are quoted from CSLB records as of the check date shown — verify the live record before hiring. Sponsored placements are paid advertising and are labeled as such; none are currently active. Paid placement never changes the ranked order and never implies quality, licensing, insurance, or fit.