Precision Connectivity. End-to-End System Integration.
At Sellenriek Construction, we deliver expert fiber splicing and seamless network integration services for broadband, municipal, and utility infrastructure throughout Missouri, Minnesota, Oklahoma, and the upper Midwest. Here’s why our partners trust us to close the loop:

Certified Fiber Splicing Technicians

Meticulous, standards-based splicing performed by experienced crews, serving clients in St. Louis, Tulsa, Jonesboro and across the Midwest.

High-Performance Testing

OTDR and power meter testing ensure every splice meets industry and project specs.

Network Integration Support

We go beyond splicing to validate, activate, and connect every system.

Turnkey Service Model

From construction to cutover, we own the full process.

Rapid Deployment Capabilities

Efficient mobilization for large-scale rollouts and critical restorations.

Transparent Project Oversight

Our proprietary dashboard keeps you updated at every step.

Companies That
Trust Us

Industry Leaders Rely on Sellenriek Construction

What Fiber Splicing & Network Integration Does

Fiber splicing is the process of permanently joining two fiber optic cables, creating a continuous optical path for data transmission. It’s the critical final step in connecting new broadband networks, integrating utility communications systems, and enabling high-speed, low-latency performance.

Our teams handle both fusion splicing and mechanical splicing with precision, ensuring loss minimization and long-term reliability. But we don’t stop at the splice. We verify, certify, and activate networks end to end, providing clients with ready-to-use infrastructure that performs from day one.

Unmatched Project Transparency with Our Proprietary Dashboard Powered by OpSource

We understand that closing out a project can be just as complex as starting one. Our proprietary dashboard makes it easy to track every splice, test result, and milestone along the way.

Live Splice Mapping

Track which fibers are live, tested, and connected across the network.

Test Reports & Validation Data

Access OTDR, loss budgets, and certification logs in real time.

Closeout Package Documentation

Get everything you need for compliance and long-term maintenance.

Final Integration Milestones

Monitor cutover schedules, client handoffs, and QA sign-offs.

Our Work in Action: Successful Fiber Splicing Projects

What We Do Today: Full-Service Infrastructure Solutions

Clint Smith

Callaway Electric​

β€œThey treat us like a partner, not just a client. It’s a relationship built on trust and responsiveness.”

James Scott

Bluebird​

β€œEverything they do is straight, aligned, and done with precisionβ€”it’s high-quality work that we can depend on.”

Matt Glover, Plant Supervisor

Mark Twain Rural Telephone Co.

“Sellenriek Construction has a solution for everything. Their team is reliable, skilled, and always ready to tackle challenges with expertise and dedication. They keep every project running smoothly and consistently deliver quality results you can trust and count on.”

Jim Bagley, CEO

United Electric Cooperative & United Fiber

β€œWorking with Sellenriek on our broadband expansion across Northwest Missouri has been a great partnership. Their expertise in fiber construction, attention to detail, and commitment to timelines have been key to our success. We value their professionalism and look forward to future projects together.”

Sam Farr, Vice President

Rally Networks

“We’ve worked with the Sellenriek Construction family for over a decade. Their team is skilled, professional, and genuinely wants us to succeed. Like us, they’re family owned and deeply involved in the community. If you need utility design, engineering, or construction work, you should definitely talk to them!”

How Does Directional

Drilling Work

Drilling Work

Drilling Work

1.

Site Assessment & Planning

Soil analysis, project mapping, and risk assessment to determine the optimal drill path.

2.

Pilot Bore Drilling

Our advanced HDD rigs create a small, controlled borehole along the planned path

3.

Path Expansion & Conduit Installation

The borehole is widened as needed, and utility conduits are pulled through seamlessly.

4.

Final Testing & Restoration

Ensuring proper conduit placement, stability, and project completion with minimal surface impact.

Who Uses Directional

Drilling

Drilling

Drilling

ISPs & Broadband Providers

Fiber optic network expansions for high-speed connectivity.

Municipalities & Utilities

Underground power, water, and gas line installation for city and county infrastructure.

Commercial & Industrial Developers

Utility integration for new developments and existing facility upgrades.

Renewable Energy Projects

Underground conduit placement for wind and solar energy distribution.

Fiber splicing is the permanent joining of two fiber optic cables to create a seamless data path. This ensures the continuity and performance of high-speed networks. This means fiber splicing is a critical step in building broadband, utility, and communication infrastructure, especially in projects across Missouri, North Dakota, South Dakota and the broader Midwest.

Broadband providers, utility companies, municipalities, and infrastructure contractors all rely on fiber splicing. It’s essential when building new networks, expanding coverage, or restoring damaged lines. Anyone connecting or upgrading fiber systems benefits from precise, standards-based splicing.

Fusion splicing uses heat to weld fibers together, creating a low-loss, permanent connection that performs well over time. Mechanical splicing aligns the fibers in a sleeve without heat, making it ideal for quick or temporary fixes. Both methods are used depending on project requirements and conditions.

Yes. Every splice is tested using OTDR and power meter tools to ensure proper alignment and signal strength. We provide full certification data through our dashboard for complete project transparency.Β 

Absolutely. From splicing in Jefferson City to final system activation in Little Rock, our team manages everything from fiber termination and fiber splicing to final activation and system turn-up. We deliver fully operational networks that are tested, validated, and ready to perform from day one.Β 

Start Your Next Splicing or Integration Project

Need a partner to complete your network with speed and precision? Let’s talk.