Serving all of Eastern Oregon and all of Western Idaho

Why hire our experts?

At Interwest Supply, our main goal is to ensure your farm is equipped with the proper irrigation system. Our crew will work quickly and efficiently to set up a system that's as efficient as it is effective. You should hire our professionals because we:

  • Have over 30 years of experience
  • Offer a variety of services
  • Have spring discounts and maintenance discounts
  • Can work with farmers, private land owners and commercial land owners
  • Are reliable and efficient
  • Serve Western Idaho and Eastern Oregon
  • Offer economical pricing

Ready to maximize the potential of your land? We offer irrigation installations, pivot swill electrical services, pump motor repairs, pasture system installations & more. Call Interwest Supply today to get started.

Irrigation Supplies and Rentals

Our complete inventory of Irrigation supplies and equipment will fill all your water management needs


Our selection of pumping equipment from Berkeley, Cornell, and Paco are the best in the industry

Need Help With Your Irrigation System?

We offer irrigation system design services in Caldwell, ID and Eastern OR

We know how challenging farming can be. From planning the layout to installing the proper systems, it can be stressful and time-consuming before you even start the real work. Instead of trying to figure it out all on your own, call Interwest Supply.

We offer irrigation system design services, pivot installation services and more to make sure your farm is watered properly year-round. Our team members have the experience and the tools to provide you with high-quality services that can't be beaten. Once our services are complete, your farm in Caldwell, ID and Eastern OR will run at its full potential.

A Little About Us

Interwest Supply, Inc was founded in 1993 in Nampa, Idaho to provide design, supply and construction services in water resource related projects for clients throughout the Northwest. Interwest has successfully completed a wide range of projects for a variety of clients, including agricultural, industrial, and municipal clients. Quality work, Economic feasibility and a close customer/client relationship are Interwest's trademarks. Interwest currently holds an Idaho Public Work's Contractor license and an Oregon Contractors license. Interwest is composed of highly qualified, multi-disciplinary technical staff with specialized training in water resources projects.

Interwest Supply's personnel has over sixty years of experience in designing and maintaining a variety of irrigation and land application related projects. Interwest has successfully completed a wide range of irrigation projects using various technologies including ditch/flood, sub surface drip, H.D.P.E. pipelines, H.D.P.E. welding, Large River Pumping Stations and computer controlled GPS Guided center Pivots and Linear move systems.

Discover our professional services

We offer a wide variety of irrigation services to ensure your land has all the tools it needs to thrive. You can come to us for expert help with:

Irrigation system design
Pivot installations
Pasture systems

To learn more about our services in Caldwell, ID and Eastern OR, get in touch with one of our team members.