TradeCheck

Licensed Plumbing Contractors in Napa County

Every plumbing contractor on record with the California Contractors State License Board in Napa County, California, with current license status computed August 17, 2026. Listed A to Z; use the filters to narrow it.

66licensed plumbing contractors
66active today
0expired
0.0%expiry rate

Of the 66 plumbing contractors licensed in Napa County, 0 are operating on an expired license, or 0.0%. That is worth checking before you sign anything: an expired license can invalidate your permit and complicate an insurance claim if the work goes wrong.

Looking to hire rather than to check someone? Filter the list below by name, or use the Active chip to hide anyone whose license has lapsed.

Licensees 1 to 66 of 66

66 listed
LicenseeLicense #ExpiresStatus
A & S PLUMBING INC1043335August 31, 2026Expiring soon
A+ WATERWORKS INC745951February 29, 2028Active
AAA ORGANIZED PLUMBING NAPA1150638February 29, 2028Active
ABC SEWER SOLUTIONS1157238June 30, 2028Active
ANTHONY'S PLUMBING OF NAPA1014655May 31, 2028Active
AQUEDUCT PLUMBING380498August 31, 2027Active
AV PLUMBING1147903December 31, 2027Active
BART DRESCHER DBA DP PIPE WORKS PLUMBING825205September 30, 2027Active
BELL PRODUCTS INC171534June 30, 2028Active
BILL JOHNSON PLUMBING CO899176June 30, 2027Active
BORG PLUMBING896045May 31, 2027Suspended
BRIAN ALLEN546900November 30, 2026Active
CHRIS FLYNN PLUMBING974538June 30, 2028Active
CLAYTON PLUMBING SERVICES653072August 31, 2028Active
CROSS VALLEY CONSTRUCTION584644January 31, 2028Active
DAVID SAVIN PLUMBING INC809389September 30, 2027Active
DON NICHOLS991488March 31, 2028Active
DOWDLE & SONS MECHANICAL INC542743September 30, 2027Active
EAGLE VALLEY PLUMBING INC1156039June 30, 2028Active
ECO PLUMBING950376August 31, 2028Active
ED'S PLUMBING & REPAIRS / CONSTRUCTION266938May 31, 2028Active
EPI PLUMBING1130351December 31, 2026Active
GONZALEZ PLUMBING950765August 31, 2028Suspended
GREGORY L KEARNS PLUMBING818460April 30, 2027Active
HERMES PLUMBING INC1069597October 31, 2026Active
I G ENTERPRISES736317May 31, 2027Active
J B PLUMBING SERVICES986049August 31, 2027Active
JACKS PLUMBING872705February 29, 2028Active
JAMES B TAYLOR PLUMBING356649March 31, 2027Active
JEFF BEKKER829579December 31, 2027Suspended
JOHN MENDOZA PLUMBING1082939October 31, 2027Active
JOSE PENA PLUMBING INC885279September 30, 2026Expiring soon
JR'S PLUMBING & DRAIN1048330December 31, 2026Active
KEN JOHNS PLUMBING364471October 31, 2026Active
KEN MAYS PLUMBING INC839864June 30, 2028Active
KLINGBEIL PLUMBING272429May 31, 2028Active
KNITTEL CONSTRUCTION INC501977March 31, 2028Active
LAPONZA PLUMBING INC986530November 30, 2027Active
MARIO BROTHERS PLUMBING INC1126430September 30, 2028Active
MC DANIEL MECHANICAL CONSTRUCTION INC721808February 28, 2027Active
MICHAEL ROMERO PLUMBING1089462April 30, 2028Suspended
MIKE A LEONTINI835034March 31, 2028Active
MIKE'S PLUMBING1145206October 31, 2027Active
MORROW PLUMBING AND DRAIN SERVICE1159380August 31, 2028Active
MR FIX407965July 31, 2027Active
NAPA VALLEY PRECISION PLUMBING INC1068754September 30, 2027Active
NORTH BAY WATER HEATER SOLUTIONS1076541June 30, 2027Active
O G PLUMBING1034291December 31, 2027Active
OAKVILLE PUMP SERVICE INC744958January 31, 2028Active
PALISADES PUMP SERVICE INC914431April 30, 2028Active
PLUMBING CONTRACTORS600928March 31, 2027Active
PLUMBING INNOVATIONS INC624540March 31, 2028Active
RC PLUMBING LLC959384September 30, 2027Active
RICK ROBBEN AND MARK CROCKER PLUMBING LLC1106345June 30, 2027Active
ROB LAND PLUMBING INC1047290November 30, 2026Active
ROSSI PLUMBING1043683August 31, 2028Active
ROY J SHAW INC DBA SHAW PLUMBING398901December 31, 2026Active
SFI MECHANICAL INC940703December 31, 2027Active
SILVERADO PLUMBING886742November 30, 2026Active
SILVERADO PLUMBING INC DBA MR ROOTER PLUMBING511333August 31, 2027Active
ST HELENA PLUMBING671970November 30, 2026Active
STEVE SILVA PLUMBING INC483676December 31, 2027Active
THE OAK KNOLL GROUP1096006August 31, 2026Expiring soon
TIM TARNER ELECTRIC749521May 31, 2027Active
TRUSTED PLUMBING1020737November 30, 2026Suspended
WEST COAST WATER1147736December 31, 2027Active

Before you hire in Napa County

  1. Match the license number on this page to the name on the contract. Licenses belong to a person or a company, not to a crew.
  2. Confirm the record at CSLB directly. This page mirrors their daily file, but they are the authority.
  3. Ask for a certificate of insurance separately. CSLB licensing does not verify that a contractor carries liability coverage.
  4. Get the license number written into the written estimate.