Business Details
37 Years
experience
Emergency
services
Your Trusted Irrigation and Pump Services Partner in Central California
Founded in 1989, Calwest Rain has established itself as a premier provider of agricultural irrigation and pump solutions across Central California. Our company was created to bridge the gap between irrigation and pump services, offering a unique one-stop approach that combines expertise in both fields. With over three decades of experience, we specialize in turnkey irrigation systems, pump repairs, well services, and advanced monitoring technologies tailored to orchards, vineyards, and row crops. Our locally-owned operation maintains four strategic locations in Kerman, Paso Robles, Hanford, and Bakersfield, ensuring timely service and support. Our team includes Certified Irrigation Designers and factory-trained technicians equipped with the latest tools and industry-leading products.We pride ourselves on maintaining the highest standards of workmanship while adapting to evolving water management technologies and farming practices. Our commitment to customer satisfaction drives every project, from system design and installation to maintenance and emergency repairs. Backed by partnerships with top manufacturers like Netafim and Rain Bird, we deliver cost-effective solutions that optimize water use and maximize agricultural yields. Our reputation for reliability is evidenced by long-standing relationships with growers and participation in key agricultural organizations. Through continuous innovation and a focus on sustainable practices, we remain dedicated to advancing irrigation efficiency and supporting California's agricultural community.
Services
Turnkey Irrigation Systems
Pump Repair Services
Well Rehabilitation
Filter Maintenance
Monitoring Systems
Parts Supply
Equipment Rentals
Details
- Year established: 1989
Highlights and features
- We offer 35+ years of combined agricultural irrigation expertise from our co-founders
- Our certified designers implement industry-leading drip and micro irrigation systems
- 24/7 on-call service for emergency pump and irrigation repairs
- Full-service parts departments at four Central California locations
- Exclusive focus on agricultural water management solutions since 1989
Associations and certifications
- Irrigation Association
Services
Turnkey Irrigation Systems
We design and install complete irrigation systems for agricultural operations. Our services cover drip, micro, subsurface, and sprinkler systems tailored to specific crop needs. With over 35 years of experience, we optimize water efficiency while maximizing crop yields through precision engineering.
Pump Repair Services
Our pump specialists provide comprehensive repair and installation services for irrigation systems. We handle deep well pumps, booster stations, and motor repairs with 24/7 emergency support. Our in-house machine shop ensures quick turnaround for critical components.
Well Rehabilitation
We offer well development and video inspection services using 1,000 HP+ capacity equipment. Our experts identify efficiency issues and perform rehabilitation to restore optimal water flow. Regular maintenance prevents costly downtime for agricultural operations.
Filter Maintenance
Our certified technicians service all filter types including sand media systems. We provide preventive maintenance programs to reduce backwashing frequency, saving water and energy costs while maintaining system efficiency.
Monitoring Systems
We implement advanced monitoring and control systems for irrigation management. Our solutions include system updates, reconfiguration, and training to help growers leverage technology for better water management and operational efficiency.
People
Larry Isheim
Co-Founder
With over 50 years in irrigation, Larry pioneered design standards for tree fruit and vineyard systems. Certified in drip and micro irrigation, he advises California State University's Center for Irrigation Technology while leading system installations.
Jim Martin
Co-Founder
Pump industry expert with 50+ years of experience, Jim established Fresno State's Ag-One program. His technical leadership includes well development innovations and serving on Hinds Hospice board for water conservation initiatives.
Questions
What agricultural irrigation systems do you specialize in?
We specialize in drip, micro, subsurface, and sprinkler irrigation systems for orchards, vineyards, and row crops across Central California.
Do you offer emergency pump repair services?
Yes, we provide 24/7 on-call pump repair services with factory-trained technicians available at all hours for critical system failures.
Are your technicians certified in irrigation design?
Yes, we maintain Certified Irrigation Designers on staff with specialized credentials in drip and micro irrigation systems.
How many locations do you serve in California?
We operate four full-service locations in Kerman, Paso Robles, Hanford, and Bakersfield to better serve Central California growers.
What pump services do you provide?
Our pump services include installation, repair, VFD systems, deep well stations, and 24/7 emergency support with in-house machining capabilities.
Reviews (1)
Tractor Apiaries
Dec 09, 2020
Report
Service clerk in the parts department is very slow and seems to be unfamiliar with the warehouse and selves layout. Only bought one thing and it took about 10 mins to find it then 10 mins to write up the invoice even though I was the only customer. The part (a 1/2 hose clamp) was way overpriced and I could not make it into town to buy it at a hardware store. I would not recommend this parts department store and instead recommend going into Fresno or Kerman to get a better deal and service. This was the first and last time I buy from here.
