Installation & Service Co Inc.
401 Crescent Dr, Mills WY 82604 | | 307-473-9000

Sewer and Water Services in Mills, WY

Welcome to Installation & Service Co! We've been serving residents and business state wide for over 31 years. Our experience and quality work makes us your number one choice for Water & Sewer Services, Asphalt Paving, Septic/Sump/Grease Trap- Pumping, Service, & Installation, and Excavation.



Installation & Service Company Inc. also offers a wide variety of asphalt paving services. We have all the equipment that is needed to do a job of any size ranging from the smallest hand asphalt patch to the largest complete road construction. Installation & Service Company has completed asphalt paving projects statewide ranging from residential driveways to commercial parking lots, state roadways, city streets, campgrounds and even private drives.


Septic Pumping & Installation

Installation & Service Company is also your one stop shop for all your Septic, Sump, and Grease Trap needs. Our state of the art Vacuum Truck has a custom designed blower pump that can pump your septic tanks, grease traps, and sumps in half the time as a standard vacuum truck. We service residential and commercial customers statewide at an affordable price and will leave you tanks clean as new after our quality service.


Water/Sewer Installation & Repair

Installation & Service Company Inc. is a fully licensed and insured water and sewer installation company. We provide a wide variety of installation and repair services for all types of water and sewer applications. We work for residential and commercial customers installing new service and repairing damaged existing service. Our experienced staff has the abilities to work with any type of water or sewer pipe and surrounding conditions.



For all your dirt work and excavation needs you can rely on the trusted experience of Installation & Service Company. There is not an excavation project we can't handle. For over 25 years we have completed jobs for various residential and commercial customers that range from dirt road construction, campgrounds, leveling, grading, and retaining wall construction. Along with leveling and grading you will also find our trusted experience in grading for storm drain systems and catch basins.