Providing Underground Construction Services for 75 Years

Dunigan Bros., Inc is a family-owned-and-operated heavy civil contractor that has served the water and wastewater industry since 1945. With 75 years of experience we have the knowledge, skills, and resources to be able to complete even the most complicated project. We are known for taking on some of the most difficult underground projects and take pride in providing the best projects possible for the project owners.

What We Value


We strive for the highest quality in everything we do. Whether we are doing a simple job or a difficult one, we do our best to provide our clients with exceptional work.


It is important to us that we maintain the safest work environment for our employees. We want each of them to be able to return to their families unharmed.


We believe in being honest and straightforward with everyone we work with. Through effective communication, we are able to maintain the quality of the job.


Our aim is to deliver every project in a timely manner to avoid inconveniences to the community. We make it a point to complete the job on schedule without comprising excellence.

Can-Do Attitude

We want our employees to maintain an eagerness to work, no matter how challenging the project is. Our team has faced several complicated jobs, and we have learned to easily adapt to our environment.


The people around us are the foundation and future of our company. We recognize them as an essential part of everything we do and make sure that they are given the proper care.

Reach Out to Us

You can trust our team for superior underground construction services. Feel free to contact us if you have any questions.