How many plumbing contractors are in SAN MARINO, CA?

5 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 SAN MARINO, CA

5 listings

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

There are 5 plumbing contractors in SAN MARINO, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2027-02-28; 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
AQUATECH ENGINEERING INC DBA AQUATECH BACKFLOW SERVICES	639936	C-36	2028-07-31	SAN MARINO	91108	Set up workspace
ARROYO FLOW PLUMBING INC	1156447	C-36	2028-06-30	SAN MARINO	91108	Set up workspace
E L MALONEY CO	296761	B, C-20, C-36	2027-02-28	SAN MARINO	91108	Set up workspace
MERRY PLUMBING CO INC	860445	C-16, C-20, C-36, C-42	2027-06-30	SAN MARINO	91108	Set up workspace
SHING TIM TANG	448716	A, B, C-10, C-20, C-36, C-38	2027-11-30	SAN MARINO	91108	Set up workspace

Quick answers

How many plumbing contractors are in SAN MARINO?: 5 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.