Koppl Pipeline Services, LLC. Since 192424/7 DISPATCH
Pipeline crew in hard hats working a large line stopping assembly at dusk

WE STOP LINES.
WE DON'T STOP
WORKING.

EXPERT LINE STOPPING & VALVE INSERTION
SERVICES FOR WATER & GAS PIPELINES

  • 24/7
    EMERGENCY
    RESPONSE
  • 100+ YEARS
    COMBINED
    EXPERIENCE
  • PRECISION
    YOU CAN
    COUNT ON
OUR SERVICES

WHAT WE DO

SPECIALIZED SOLUTIONS.
BUILT FOR THE FIELD.

From routine maintenance to emergency repairs, we provide safe, efficient, and cost-effective solutions that keep critical infrastructure moving.

VIEW ALL SERVICES

LINE STOPPING

Hot tapping and line stopping services on water and gas mains up to 48" and 900 PSI.

Line stop and gate valve assemblies installed on a live industrial pipeline

VALVE INSERTION

Installing, replacing, and maintaining valves without shutting down the entire system.

Inserted valve bolted onto a water main inside an open trench

PIPELINE MAINTENANCE

Proactive maintenance and integrity services to extend the life of your infrastructure.

Welder performing repair work on a concrete pressure pipe in an excavation

EMERGENCY RESPONSE

24/7 rapid response for critical repairs and unexpected pipeline challenges.

Koppl service truck and crane staged over an emergency pipeline excavation

ENGINEERED SOLUTIONS

Custom engineering and equipment for unique pipeline challenges.

Custom fabricated red pipeline fittings staged for delivery

WHERE WE WORK

PROUDLY SERVING
CALIFORNIA & HAWAII

With our headquarters in Montebello, CA, and dedicated resources in Hawaii, we're ready to respond wherever you need us.

  • MONTEBELLO, CACorporate Headquarters & Main Service Center
  • HAWAIIService Center & Equipment Yard
OUR COVERAGE
Map of the United States with California and Hawaii highlighted in redMontebello, CAHawaii

TRUSTED BY LEADING ORGANIZATIONS

BUILT ON TRUST. DELIVERED EVERY TIME.

24/7 DISPATCH

PIPELINE PROBLEMS
DON'T WAIT.
NEITHER DO WE.

Call our dispatch team anytime, day or night. We're ready to get to work.

(323) 888-2211
CALL NOWREQUEST SERVICE
Koppl Pipeline Services circular badge reading hot tapping, line stopping, pipe freezing

© 2026 Koppl Pipeline Services, LLC. All rights reserved.

CA Lic. #465190

Koppl Pipeline Services logoKoppl Pipeline Services wordmarkRequest a Quote
Industrial piping system with orange gate valves installed on live lines

PipelineSolutionsSince 1924

Expert hot tapping, line stopping, pipe freezing, valve insertions, and concrete pressure pipe repair with unmatched safety and reliability.

Request a QuoteExplore Services
100+ YearsOf pipeline excellence since 1924
Fully Licensed & InsuredCA Lic. #465190
Expert Field TeamHighly trained and safety focused
24/7 Response ReadyWhen you need it
Proven ReliabilityMinimal interruption, maximum results

Our Services

Specialized solutions for complex pipeline challenges

Hot tap connection with an orange gate valve installed on an operating industrial pipeline

Hot Tapping

Install new connections on live pipelines with precision and zero shutdown.

Learn More »
Line stop equipment and valves installed across an industrial piping run

Line Stopping

Isolate sections of pipe safely to allow for repairs and system modifications.

Learn More »
Frost coated pipe surrounded by vapor during a controlled pipe freeze

Pipe Freezing

Temporary freezing of water lines for repairs without draining.

Learn More »
Red insertion valve fitting bolted to a water main in an open trench

Valve Insertions

Insert valves into live pipelines to improve control and system flow.

Learn More »
Welder repairing a large concrete pressure pipe inside an excavation

Concrete Pressure Pipe Repair

Expert repair solutions for concrete pressure pipe that last.

Learn More »
Black and white scene of machinists turning pipe fittings in an early industrial workshop

Our Heritage

A Legacy of Trust.A Future of Solutions.

Since 1924, Koppl Pipeline Services, LLC has been at the forefront of pipeline innovation. Our century of experience, combined with modern technology and a relentless commitment to safety, delivers dependable solutions that keep communities and industries flowing.

Safety First

Every job. Every day.

Quality Driven

Built on standards. Proven in the field.

Modern Execution

Advanced tools. Skilled experts.

Customer Focused

Responsive. Reliable. Results that last.

Featured Solutions

Engineered Products.Field-Proven Performance.

Koppl manufactures and supplies premium valve insertion and line stopping equipment trusted by utilities and contractors nationwide.

  • Valve insertion machines and accessories
  • Line stop equipment and mechanical stoppers
  • Custom engineered solutions
  • Built for safety, durability and ease of use
View Products »
Two red flanged pipe nozzles fabricated for valve insertion work
Valve Insertion Equipment
Red line stop fitting with threaded studs staged for delivery
Line Stop Equipment
Mechanical stopper fitting bolted to a water main in a trench
Mechanical Stoppers

Recent Projects

View All Projects »
Technician in a red hard hat installing a hot tap fitting on a water main

16" Water Main Hot Tap

Municipal water system. Los Angeles, CA

Crew operating line stop equipment on a large main inside a shored excavation

24" Line Stop & Valve Insertion

Industrial facility. Rancho Cucamonga, CA

Hydraulic equipment attached to a repaired pressure pipe in an excavation

Concrete Pressure Pipe Repair

Water transmission main. Montebello, CA

Why Koppl?

A proven process. Trusted results.

Responsive Support

We respond quickly and engage early.

Expert Planning

Tailored solutions for your system.

Safe & Efficient Execution

Minimize disruption. Maximize safety.

Quality Assurance

We stand behind our work.

Ongoing Partnership

Built for long-term reliability.

Get Started Today

We're Ready toSolve Your PipelineChallenges.

Request a Quote

Koppl Pipeline Services logoKoppl Pipeline Services wordmark

Pipeline solutions since 1924. Hot tapping, line stopping, pipe freezing, valve insertions, and concrete pressure pipe repair you can rely on.

Contact

(323) 888-2211info@koppl.com
1228 Date Street, Montebello, CA 90640

Licenses

CA Lic. #465190

SBE / DBE / WBE Certified

© 2026 Koppl Pipeline Services, LLC. All rights reserved.

Koppl Pipeline Services logoKOPPL PIPELINE SERVICESSINCE 1924(323) 888-2211
Crew members in red coveralls working a large pipeline tapping rig at dusk

EXPERTS INKEEPING THE FLOWGOING.

Specializing in line stopping, valve insertion, and pipeline maintenance for water and gas systems since 1924.

OUR SERVICES

OUR CAPABILITIES

PRECISION SOLUTIONS.PROVEN RESULTS.

From emergency repairs to complex installations, we ensure the flow goes where it must, and stays where it belongs. One expert job at a time.

VIEW ALL SERVICES
Line stop equipment installed on a live pipeline inside an industrial plant

01LINE STOPPING

Hot tapping and line stopping services up to 48".

A newly inserted valve on a buried water main in an open trench

02VALVE INSERTION

Safely insert valves on live lines with no disruption to service.

Vapor surrounding a frozen section of pipe during a pipe freeze operation

03PIPE FREEZE

Freeze services for isolation that keeps your system flowing.

A Koppl flatbed truck and excavator staged for bypass work at a construction site

04BYPASS PUMPING

Custom bypass pumping solutions for any size or scope.

A Koppl service truck and crew responding at a street excavation

0524/7 EMERGENCY SERVICE

Rapid response when you need it most.

OVER

100+

YEARS

OF INDUSTRY EXPERIENCE

UP TO

900

PSI RATED

LINE STOPPING & TAPPING

ACROSS

2

SERVICE CENTERS

CALIFORNIA & HAWAII

DEDICATED

24 / 7

TO SAFETY & SERVICE

TRUSTED ON PROJECTS

BUILT ON EXPERIENCE.DELIVERED WITH PRIDE.

VIEW ALL PROJECTS
A crew member fitting a red tapping sleeve on a water main in an excavation
Technicians operating a line stop actuator inside a shored excavation
Hydraulic lines connected to a tapping machine on a large diameter pipeline
A completed valve installation on a service line in an open trench
A Koppl crane truck positioned over a street excavation during a tapping job

WHERE WE WORK

COVERAGETHAT COUNTS.

Proudly serving California and Hawaii with rapid response and local presence.

CALIFORNIA

Montebello, CA

& Surrounding Areas

HAWAII

Statewide Service

All Major Islands

24/7

RESPONSE

We're ready when you need us.

24/7 EMERGENCY SERVICE

WE'RE READYWHEN YOU NEED US.

Our team is standing by 24/7 to respond to your emergency pipeline needs.

(323) 888-2211
A gloved Koppl technician guiding a hot tapping machine in low lightKoppl Pipeline Services badge