C-34

142 clear company licenses whose first classification is “C-34 — Pipeline”.

Place	Contractor	License	Main classification	Expires
Santa Barbara, CA	101 PLUMBING INC	864789	C-34 — Pipeline	Aug 31, 2027
Petaluma, CA	101 PLUMBING SOLUTIONS	1030939	C-34 — Pipeline	Nov 30, 2026
Sacramento, CA	8A UNDERGROUND PIPELINE	1125313	C-34 — Pipeline	Aug 31, 2028
Truckee, CA	A - 1 TESTING / MAINTENANCE INC	783095	C-34 — Pipeline	Aug 31, 2028
Scotts Valley, CA	A P C S C INC	960891	C-34 — Pipeline	Jun 30, 2027
San Jose, CA	ABLE PLUMBING SEWER AND DRAIN ABLE GENERAL ENGINEERING INC	1063451	C-34 — Pipeline	Feb 29, 2028
Santa Rosa, CA	ALL BAY SEWER INC	1076969	C-34 — Pipeline	Feb 29, 2028
Monrovia, CA	ALLEN PIPELINE INC	825139	C-34 — Pipeline	Sep 30, 2027
Petaluma, CA	ALPHA TRENCHLESS	1044308	C-34 — Pipeline	Feb 29, 2028
Orange, CA	AMERICAN CONTRACTORS INC	309863	C-34 — Pipeline	Nov 30, 2027
Yorba Linda, CA	AMERICAN CPL INC	1124230	C-34 — Pipeline	Jul 31, 2028
Fullerton, CA	AMERICAN WAY PIPELINE INC	1133122	C-34 — Pipeline	Feb 28, 2027
Angels Camp, CA	ANGELS SEWER & DRAIN INC	798432	C-34 — Pipeline	Dec 31, 2026
Houston, TX	ASSOCIATED PIPE LINE CONTRACTORS INC	399495	C-34 — Pipeline	Apr 30, 2027
San Pedro, CA	BENDER GEORGE PLUMBING INC	754787	C-34 — Pipeline	Oct 31, 2026
Carlsbad, CA	BENNETT T M PLUMBING & DRAIN INC	985357	C-34 — Pipeline	Jul 31, 2027
Costa Mesa, CA	BEST BORING AND BURSTING INC	1005228	C-34 — Pipeline	Jul 31, 2027
Blythe, CA	BLACK SHEEP PLUMBING	1115703	C-34 — Pipeline	Jan 31, 2028
Boise, ID	BLUE SKY PIPELINE CONSTRUCTION BLUE SKY CONSTRUCTION LLC	1117300	C-34 — Pipeline	Feb 29, 2028
Gardena, CA	BONAFIDE UTILITY PIPELINE GROUP	1149132	C-34 — Pipeline	Jan 31, 2028
Aromas, CA	BRAD'S PLUMBING LLC	1100307	C-34 — Pipeline	Jan 31, 2027
Gold Hill, OR	BROTHERTON CORPORATION	1065562	C-34 — Pipeline	Apr 30, 2028
Redlands, CA	BUILDING 5 SEPTIC INC	829093	C-34 — Pipeline	Jan 31, 2027
Calimesa, CA	BULLSEYE BORING	926356	C-34 — Pipeline	Dec 31, 2026
Menifee, CA	CAL-OSO BACKFLOW SERVICES LLC	1109590	C-34 — Pipeline	Sep 30, 2027
Stockton, CA	CALIFORNIA BACKFLOW	1092650	C-34 — Pipeline	Jun 30, 2027
Santa Cruz, CA	CALIFORNIA RADIANT DUNCAN PLUMBING ENTERPRISES INC	784642	C-34 — Pipeline	Oct 31, 2027
Los Gatos, CA	CALIFORNIA UTILITY COMPANY	1019526	C-34 — Pipeline	Oct 31, 2028
Clearbrook, MN	CHARPS LLC	1040780	C-34 — Pipeline	Jun 30, 2028
Fairfield, CA	CHRISTIAN BROTHERS LINING CO	933224	C-34 — Pipeline	Jun 30, 2027
Taylor, MI	CIPP LINING SERVICES FER - PAL CONSTRUCTION USA LLC	1125813	C-34 — Pipeline	Aug 31, 2028
Bakersfield, CA	CNF PLUMBING CNF PLUMBING AND UNDERGROUND LLC	1114162	C-34 — Pipeline	Dec 31, 2027
Carpinteria, CA	COASTLNE PLUMBING INC	1054113	C-34 — Pipeline	May 31, 2027
Suisun, CA	COBRA PIPELINE CO INC	1011587	C-34 — Pipeline	Dec 31, 2026
Coto De Caza, CA	COMPETITIVE PLUMBING COMPETITIVE PIPELINE INC	784505	C-34 — Pipeline	Sep 30, 2028
Santa Barbara, CA	CVA PLUMBING	1025602	C-34 — Pipeline	Apr 30, 2027
Yorba Linda, CA	D & S PLUMBING SYSTEMS INC	1112879	C-34 — Pipeline	Nov 30, 2027
Albuquerque, NM	D H UNDERGROUND PIPELINE D H UNDERGROUND INC	964558	C-34 — Pipeline	Aug 31, 2027
Raymond, CA	DAVID'S PLUMBING LLC	1024128	C-34 — Pipeline	Jun 30, 2028
Riverside, CA	DIAMOND HOUSE PLUMBING DIAMOND HOUSE CONSTRUCTION INC	830356	C-34 — Pipeline	Jan 31, 2028
Wallingford, CT	DIRECTIONAL TECHNOLOGIES INC	966722	C-34 — Pipeline	Oct 31, 2027
San Clemente, CA	DOHENY PLUMBING INC	736531	C-34 — Pipeline	Jun 30, 2027
Carson City, NV	DOUBLE DIAMOND PIPELINE DIRECT DRILLING INC	1001327	C-34 — Pipeline	Feb 28, 2027
West Concord, MN	ELLINGSON DRAINAGE INC	1016551	C-34 — Pipeline	Jul 31, 2028
Carpinteria, CA	EXPRESS - ROOTER INC	735657	C-34 — Pipeline	Aug 31, 2027
Moreno Valley, CA	F & B PIPELINE INC	1060925	C-34 — Pipeline	Dec 31, 2027
Canyon Country, CA	FPC INDUSTRIAL PLUMBING FAIR PLUMBING CORPORATION	747675	C-34 — Pipeline	Apr 30, 2028
Santa Cruz, CA	GRIGGS BUDDY PLUMBING GRIGGS HERSCHEL PLUMBING INC	936447	C-34 — Pipeline	Sep 30, 2028
Yorba Linda, CA	HACIENDA PIPELINE COMPANY INC	818685	C-34 — Pipeline	Apr 30, 2027
Sedro Woolley, WA	HANGING H COMPANIES LLC	1054650	C-34 — Pipeline	Jun 30, 2027
Modesto, CA	HERK'S PLUMBING HERK'S PLUMBING INC	988077	C-34 — Pipeline	Jul 31, 2027
Moreno Valley, CA	HIDALGO PLUMBING INC	986267	C-34 — Pipeline	Aug 31, 2027
Antioch, CA	HIGH PERFORMANCE PIPELINES HYDROVAC INC	1093309	C-34 — Pipeline	Jun 30, 2028
Milwaukee, WI	HYDRATIGHT OPERATIONS INC	973324	C-34 — Pipeline	May 31, 2028
Lake Elsinore, CA	IMPROVED PLUMBING CORPORATION	1093489	C-34 — Pipeline	Jul 31, 2028
Modesto, CA	INNOVATIVE SHOTLINING INC	1095971	C-34 — Pipeline	Aug 31, 2028
Santee, CA	INTERPIPE CONTRACTING INC	578888	C-34 — Pipeline	Oct 31, 2027
Fairview, OR	IRON HORSE PIPELINE SERVICES IRON HORSE LLC	1047903	C-34 — Pipeline	Dec 31, 2026
Hayward, CA	J N G PIPELINE CONSTRUCTION INC	1042380	C-34 — Pipeline	Jan 31, 2028
Santa Barbara, CA	JERRY THE PLUMBER INCORPORATED	854067	C-34 — Pipeline	Feb 28, 2027
Livermore, CA	JIFCO INC	736330	C-34 — Pipeline	May 31, 2027
Merced, CA	JOHNSON PLUMBING INC	423194	C-34 — Pipeline	May 31, 2028
Placentia, CA	K B L PLUMBING SYSTEMS INC	951679	C-34 — Pipeline	Aug 31, 2028
Menifee, CA	KAT PIPELINE KAT EXCAVATION AND UTILITIES LLC	1153350	C-34 — Pipeline	Apr 30, 2028
Montebello, CA	KOPPL PIPELINE SERVICES LLC	844802	C-34 — Pipeline	Oct 31, 2027
Alpine, CA	LANCO UNDERGROUND INC	1100798	C-34 — Pipeline	Jan 31, 2027
Yucaipa, CA	LAW PLUMBING CO WALTON K ENTERPRISES INC	797763	C-34 — Pipeline	Jul 31, 2027
Brawley, CA	LIDCO INC	783624	C-34 — Pipeline	Aug 31, 2028
Santa Ynez, CA	LITLE BACKHOE SERVICES LITLE CONSTRUCTION INC	571448	C-34 — Pipeline	Nov 30, 2026
Rancho Santa Margarita, CA	LOPEZ PIPE LOPEZ STRUCTURES INC	1029370	C-34 — Pipeline	Jul 31, 2027
Santa Barbara, CA	LOW COST PLUMBING INC	813041	C-34 — Pipeline	Sep 30, 2028
Minot, ND	LSW PIPELINE SERVICES LARRY SOOKDEO WELDING SERVICES LLC	1130142	C-34 — Pipeline	Dec 31, 2026
Riverside, CA	LUNA'S PLUMBING INC	893222	C-34 — Pipeline	Aug 31, 2027
Visalia, CA	MARKS ROBERT S PLUMBING INC	1011446	C-34 — Pipeline	Feb 29, 2028
Mission Viejo, CA	MARTIN SANITATION	855559	C-34 — Pipeline	Mar 31, 2027
Bakersfield, CA	MAYBERRY'S DAN PIPELINE CONSTRUCTION INC	816582	C-34 — Pipeline	Aug 31, 2027
Orange, CA	MEIER PLUMBING INC	886309	C-34 — Pipeline	Oct 31, 2026
Phelan, CA	MOJAVE SEPTIC HEARKEN ENTERPRISES CORP	1140358	C-34 — Pipeline	Jul 31, 2027
San Dimas, CA	MPI - MILLER PLUMBING INC	720581	C-34 — Pipeline	Apr 30, 2027
Aptos, CA	MR ROOTER PLUMBING OF SANTA CRUZ GAUNTLET ENTERPRISES INC	903756	C-34 — Pipeline	Sep 30, 2027
Santa Rosa, CA	MR ROOTER PLUMBING OF SONOMA COUNTY ASSOCIATED PLUMBING TECHNOLOGIES INC	791056	C-34 — Pipeline	Feb 28, 2027
Santa Barbara, CA	MUNOZ PLUMBING REPAIR	1037936	C-34 — Pipeline	Apr 30, 2028
Northridge, CA	NEW CITY PLUMBING CONTRACTORS INC	1092279	C-34 — Pipeline	Jun 30, 2028
El Sobrante, CA	NO LIMIT ROOTER INC	1083291	C-34 — Pipeline	Nov 30, 2027
Nuevo, CA	NUEVO PLUMBING INC	998218	C-34 — Pipeline	Feb 28, 2027
Glendora, CA	P & M DRAINOLOGY LLC	1083561	C-34 — Pipeline	Nov 30, 2027
Azusa, CA	P P S PLUMBING CORP	1001177	C-34 — Pipeline	May 31, 2028
Porterville, CA	PACIFIC UTILITY PIPELINE INC	1058957	C-34 — Pipeline	Oct 31, 2027
Atmore, AL	PARKER AND SON PIPELINE INC PARKER AND SON INC	1040678	C-34 — Pipeline	Jun 30, 2028
Modesto, CA	PATRIOT PIPELINE PLATINUM CONSTRUCTION GROUP	1126681	C-34 — Pipeline	Sep 30, 2028
Escondido, CA	PAUMA STORM WATER AND SEWER SYSTEMS INC	1061975	C-34 — Pipeline	Jan 31, 2028
Riverton, UT	PIPE REHAB SPECIALISTS	1015612	C-34 — Pipeline	Jun 30, 2028
Sarasota, FL	PIPE RESTORATION SOLUTIONS INC	1097573	C-34 — Pipeline	Oct 31, 2026
Norco, CA	PIPELINE & UTILITY CONTRACTORS INC	481130	C-34 — Pipeline	Dec 31, 2026
Houston, TX	PIPELINE SERVICES WELDFIT LLC	1109708	C-34 — Pipeline	Sep 30, 2027
Oceanside, CA	PRECISION PIPELINE DRILLING PRECISION DIRECTIONAL DRILLING INC	1149770	C-34 — Pipeline	Jan 31, 2028
Watsonville, CA	PRIME UNDERGROUND PIPELINERS INC	1139862	C-34 — Pipeline	Jul 31, 2027
Ventura, CA	QUICK RESPONSE PLUMBING & DRAIN CLEANING LLC	874293	C-34 — Pipeline	Mar 31, 2027
Scotts Valley, CA	REDWOOD PIPE AND DRAIN INC	1041518	C-34 — Pipeline	Sep 30, 2028
Oakley, CA	RMG UNDERGROUND CONSTRUCTION INC	1108308	C-34 — Pipeline	Aug 31, 2027
Monterey, CA	ROOTER KING OF MONTEREY COUNTY INC	963415	C-34 — Pipeline	Jul 31, 2027
Santa Cruz, CA	ROSENTHAL PLUMBING INC	923778	C-34 — Pipeline	Apr 30, 2027
Rocklin, CA	ROTO ROOTER LAKE TAHOE ROOTER KING INC	1001120	C-34 — Pipeline	Feb 28, 2027
Bakersfield, CA	RUBEN'S PIPELINE INC	893201	C-34 — Pipeline	Mar 31, 2027
Santa Barbara, CA	RUGGIERO PLUMBING INC	756443	C-34 — Pipeline	Jun 30, 2028
Yuba City, CA	RUIZ PIPELINE RUIZ DIRECTIONAL DRILLING INC	1018352	C-34 — Pipeline	Sep 30, 2028
Yuba City, CA	RUIZ UNDERGROUND ELECTRIC INC DBA RUIZ PIPELINE	1114518	C-34 — Pipeline	Dec 31, 2027
Mira Loma, CA	S L F MECHANICAL A PARTNERSHIP	799577	C-34 — Pipeline	Sep 30, 2027
Kingsburg, CA	SAM JORGENSEN PUMP ALTA PUMP COMPANY LLC	1085425	C-34 — Pipeline	Dec 31, 2027
Santa Cruz, CA	SC HOT TAPS LLC	1155117	C-34 — Pipeline	May 31, 2028
Union City, CA	SELECT PAVERS INC	995727	C-34 — Pipeline	Dec 31, 2026
Antioch, CA	SERVICE PROS PLUMBERS INC	979455	C-34 — Pipeline	Jun 30, 2028
El Sobrante, CA	SEWER CONNECTION INC	796452	C-34 — Pipeline	Jun 30, 2027
Simi Valley, CA	SEWER SPY THE SPY ROOTER INC	927424	C-34 — Pipeline	Jan 31, 2027
Hercules, CA	SEWER WORKS INC	1024532	C-34 — Pipeline	Mar 31, 2027
Houston, TX	SMART PIPE COMPANY INC	937292	C-34 — Pipeline	Sep 30, 2027
Houston, TX	STATS INTERNATIONAL PIPELINE CONSTRUCTION STATS INTERNATIONAL INC	1145505	C-34 — Pipeline	Oct 31, 2027
Peoria, AZ	STELLAR STEEL SERVICES LLC	1018001	C-34 — Pipeline	Dec 31, 2027
Summerland, CA	STEWART'S & SELZER PLUMBING COUNTY SANITATION COMPANY INC	375514	C-34 — Pipeline	Jun 30, 2027
Emeryville, CA	STRATTON PLUMBING INC	1101120	C-34 — Pipeline	Mar 31, 2028
Kingsburg, CA	STREAMLINE IRRIGATION INC	1049262	C-34 — Pipeline	Jan 31, 2027
Eunice, LA	SUNLAND CONSTRUCTION INC	860457	C-34 — Pipeline	Jun 30, 2027
San Jacinto, CA	TAYLOR UNDERGROUND INC	859932	C-34 — Pipeline	Jun 30, 2027
Cypress, CA	TDW US, INC.	701255	C-34 — Pipeline	Jan 31, 2027
Sugar Land, TX	TEAM INDUSTRIAL SERVICES INC	461606	C-34 — Pipeline	Nov 30, 2026
Houston, TX	TEXAS U S PIPELINE INC U S PIPELINE INC	771714	C-34 — Pipeline	Nov 30, 2027
Northridge, CA	THE DRAIN WHISPERER	1025352	C-34 — Pipeline	Aug 31, 2028
La Quinta, CA	TORRES COMMERCIAL PLUMBING	1060857	C-34 — Pipeline	May 31, 2028
Rancho Cordova, CA	TRI TOOL INC	615617	C-34 — Pipeline	Dec 31, 2027
Merced, CA	TRINITY DIRECTIONAL DRILLING	1124727	C-34 — Pipeline	Aug 31, 2028
San Bernardino, CA	TY UNDERGROUND INC	779805	C-34 — Pipeline	Jun 30, 2028
Bakersfield, CA	U S PIPE AND IRRIGATION LLC	1044738	C-34 — Pipeline	Sep 30, 2028
Chesterfield, MO	UGSI INC UNDERGROUND SOLUTIONS INC	930859	C-34 — Pipeline	Apr 30, 2027
Arvin, CA	UNDERGROUND PIPELINE SPECIALTY INC	1106982	C-34 — Pipeline	Oct 31, 2027
Durango, CO	UNITED PIPELINE SYSTEMS INC	972794	C-34 — Pipeline	May 31, 2028
Buellton, CA	WATERWORX LLC	1118627	C-34 — Pipeline	Mar 31, 2028
Oakland, CA	WELTON UNDERGROUND WELTON ENGINEERING & CONSTRUCTION	1047016	C-34 — Pipeline	Nov 30, 2026
Turlock, CA	WHEELER IRRIGATION REPAIR LLC	1155993	C-34 — Pipeline	May 31, 2028
Goleta, CA	WINCHESTER CANYON CONSTRUCTION INC	423511	C-34 — Pipeline	Mar 31, 2028
Fortuna, CA	WYCKOFF PLUMBING	199427	C-34 — Pipeline	Nov 30, 2026
Lake Elsinore, CA	YUKON UNDERGROUND PIPELINE INC	1066930	C-34 — Pipeline	Jul 31, 2028
Novato, CA	ZARAGOZA PLUMBING TEAM INC	1073364	C-34 — Pipeline	Feb 28, 2027

Alphabetical order — this site ranks no one. Company licenses with a clear status in the CSLB file of October 1, 2026. Sole owners are not on this site; for today's status and complaints, use the CSLB's Instant License Check. How to read this.