Coastal SD Pros Oceanside plumbing directory

Magnum Plumbing Company — Oceanside plumber profile

A public-record profile: this company's California contractor license record, verbatim from CSLB, plus its attributed Google reputation data and direct contact details. Coastal SD Pros is an independent directory — this page is public data, not an endorsement.

5.0(64 Google reviews · Jun 20, 2026)

CSLB #1027259 · C-36 Plumbing No. 11 of 11 on our ranked Oceanside list (ordered by public Google review volume) Checked against CSLB · Jul 6 2026
The state record

What CSLB has on file for license #1027259.

Every field below is quoted from the Contractors State License Board's public record as it read on July 6, 2026 — re-checked at each data refresh. Licenses change; verify the live record before hiring.

CSLB license recordView the live CSLB record →
License number
1027259The number to type into CSLB's Check-A-License tool — always confirm against the state's live record, not any directory (including this one).
Registered business name
MAGNUM PLUMBING COMPANY INCThe legal name on file with the state matches the name the company markets under — no separate DBA to reconcile.
Classification
C-36 PlumbingC-36 is California's specialty classification for plumbing — the license class a contractor needs to take plumbing jobs.
Status
“This license is current and active.”CSLB's own wording for whether this contractor may legally take work today, as shown on July 6, 2026.
Issued
May 25, 2017 — licensed since 2017How long this license number has existed, per CSLB. It tells you the license's age, not how good the work is.
Expires
July 31, 2026This license reaches its renewal date on July 31, 2026. As of our July 6, 2026 check the license was current and active and a renewal was not yet reflected on the record — renewals are routine, but check the live CSLB record for the current status before hiring.
Contractor bond
On fileA contractor bond gives homeowners a path to compensation if the contractor violates license law — CSLB shows whether one is currently on file.
Workers' comp
Insured — AmTrust Insurance Company, policy KWC1420328, expires December 19, 2026Workers' compensation covers the contractor's employees if they're hurt on your property — without it, that risk can land on the homeowner.

Checked against CSLB records July 6, 2026 — re-checked at each data refresh. This block quotes the public record only; it is not a judgment of workmanship. Want to read a record like this yourself? See how to check a plumber's license.

Checked against CSLB
· Jul 6 2026
Public reputation

What Google's public data showed.

5.0(64 Google reviews · Jun 20, 2026)

64 Google reviews — public Google business data as of June 20, 2026. Ratings and counts change; check the live listing and the company's website for the current picture.

Review volume vs. the most-reviewed company on our list (1,300)

64 of 1,300 — the bar compares public Google review counts from the June 20, 2026 pull, the same measure that orders the ranked list. Review volume is not a quality score.

Contact

Reach the company directly — or route one request through us.

The company's own line

Call Magnum Plumbing Company

This phone number belongs to the company (public Google listing, June 20, 2026) — it is not Coastal SD Pros.

Call (760) 846-5673

Website: magnumplumbingco.com

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Not on file

What this profile doesn't include — on purpose

We publish only what our two dated public sources contain. Anything below isn't in them, so we leave it blank rather than guess.

Business hours:
not published in our source data — confirm when you call.
Emergency / after-hours availability:
not published — confirm when you call.
Pricing:
not published — the only real price is a written estimate from a pro who has seen the job.
Services offered:
we list the CSLB classification only — confirm the specific service you need when you call.

Why is this company listed at all? It met our published bar at the last check: public Google rating of 4.5★ or higher with 25+ reviews (June 20, 2026 pull) and an active CSLB license with a plumbing classification (checked July 6, 2026). The full rules — including what gets a company delisted — are on the methodology page.

Keep reading

Guides and the list this profile belongs to.

How this list worksThe numeric bar, the ordering rule, delisting Check a plumber's licenseRead a CSLB record yourself in 4 fields All Oceanside plumbersThe full ranked list this profile belongs to Emergency plumber guideOur Oceanside guide — what to do right now Drain cleaning guideSymptoms, cost factors, when to call Water heater guideReplacement timing, permits, cost factors

Service-page links above are navigation to Coastal SD Pros guides — they are not claims about which services this specific company offers. Confirm the service you need when you call.

← Back to the ranked Oceanside plumber list

Coastal SD Pros is an independent directory and lead-referral service, not a licensed plumbing contractor, and does not perform plumbing work. This profile compiles public data: CSLB license records (checked July 6, 2026) and Google business data (June 20, 2026), each attributed and dated. It is not an endorsement, and "license verified" describes the record check only — never workmanship. Sponsored placements are paid advertising and are labelled as such; none are currently sponsored. Verify licensing and insurance live, read current reviews, and get a written estimate before hiring.