How many plumbing contractors are in NEWARK, CA?

15 with a current California license, as of 2026-08-31.

How do I check a California contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the California CSLB licensee database.

Plumbing contractors in NEWARK, CA

15 listings

Source: California CSLB license records. Last verified 2026-08-31.

There are 15 plumbing contractors in NEWARK, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-10-31; every listing shows its own number and expiry date. All are drawn from the California CSLB register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
ABOVE ALL PLUMBING INC	739199	C-36, C-42	2028-05-31	NEWARK	94560	Set up workspace
ALL BAY PLUMBING INCORPORATED	1033035	C-36	2027-11-30	NEWARK	94560	Set up workspace
AMERICAN WATER HEATER SERVICE INC	959436	C-4, C-36	2027-03-31	NEWARK	94560	Set up workspace
AUM PLUMBING SERVICES	1115037	C-36	2028-01-31	NEWARK	94560	Set up workspace
BAY WATER PLUMBING INC	1052198	C-36	2028-03-31	NEWARK	94560	Set up workspace
DANIEL CISNEROS DBA D C PLUMBING	913429	C-36	2028-04-30	NEWARK	94560	Set up workspace
DOC'S PLUMBING	656541	C-36	2026-10-31	NEWARK	94560	Set up workspace
GRANT'S PLUMBING	963364	C-36	2027-07-31	NEWARK	94560	Set up workspace
MARINO SUMANO PLUMBING	1094723	C-36	2028-07-31	NEWARK	94560	Set up workspace
MATHEWS MECHANICAL	643197	C-36, D21, D28	2027-02-28	NEWARK	94560	Set up workspace
MC PLUMBING INC	1024192	C-36	2027-04-30	NEWARK	94560	Set up workspace
OC PLUMBING & WATER HEATERS	1125266	C-36	2028-08-31	NEWARK	94560	Set up workspace
ROCKY'S PLUMBING AND ROOTER	1079383	C-36	2027-08-31	NEWARK	94560	Set up workspace
SILICON VALLEY PLUMBING SERVICES	1098278	C-36	2026-10-31	NEWARK	94560	Set up workspace
VELIZ PLUMBING SERVICE	949281	C-36	2028-02-29	NEWARK	94560	Set up workspace

Quick answers

How many plumbing contractors are in NEWARK?: 15 with a current California license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the California CSLB licensee database.