
Quality Since 1936
Four Generations of Pipeline Construction

About R.L. Coolsaet Construction Company
Since 1936 R.L. Coolsaet Construction Company has been building a record of solid performance in our field. We have qualified personnel, first-class equipment, and available finances to successfully complete any pipeline project from a small diameter to forty-two inch in size.
85+
Years of Experience
Our Services
We have the experience, expertise, and equipment necessary to handle your next project, from concept
through design engineering and fabrication to final installation.
Transmission Pipelines
Construction of gas and liquids transmission pipelines.
Natural Gas Distribution
Construction of distribution gas mains and services.
Station Fabrication
Construction and Modifications of Metering & Regulation Stations.
Pressure Testing
Testing of new or existing pipelines to validate MAOP.
Pipeline Remediation
Pipeline Pigging, Integrity Digs and Repairs.
Trenchless Installations
Performance of Auger Bores as well as Horizontal Directional Drills.

Our Mission
We are dedicated to providing exceptional customer service and building lasting relationships based on trust and mutual respect. As we close in on our 90th year as a family owned, union construction company, we hope to continue to support our communities through the construction of safe, reliable pipelines.

What it Means to Work Here
Working at R.L. Coolsaet is a great experience because you are presented with new worksites and challenges every day. There is always an opportunity to learn new skill.
We value the time and effort every employee contributes to the success of our projects. We are committed to providing top-notch training and resources to help you grow as a person.

Our Work
We are proud to support the country's clean energy future. Our goal is to finish a project safely and of the highest quality, ensuring we bring innovative solutions to solve our customers’ issues.
Why Choose Us
Experience
We draw on lessons learned to prevent problems before they occur.
Quality Craftsmanship
We work with skilled tradespeople who take pride in their work, ensuring each project meets the highest standards.
Safety First
Our commitment to strict safety protocols ensures the well-being of our workers, clients, and the general public.
Custom Solutions
Every project is unique. We listen, adapt, and provide tailored construction solutions that meet your needs.
We are Proud to Partner with the Following Organizations












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Pipeline Rehabilitation
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Contact Info
Phone Number: (734) 946-9300
Email Address: rlc@coolsaet.com
Address: 28800 Goddard Road, Romulus Michigan 48174-2702
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