If you need water but don’t have access to a municipal source, CJ Hammer Pump Company is here to help. Here’s what we offer:
Ag Systems
Whether for large agricultural or small domestic systems, we offer comprehensive solutions, from designing and installing new systems to repairing or replacing aging or faulty ones. Our service technicians are available 24/7, ensuring prompt assistance whenever issues arise, even on nights, weekends, and holidays.
Domestic Systems
Groundwater is the lifeblood for many residential properties in the Central Valley. Just as farmers depend on agricultural systems, homeowners rely on domestic water systems for their daily needs. A disruption in your home’s water supply can range from a minor inconvenience to a serious emergency. Our team ensures that your domestic system is operating reliably, whether it’s installing new systems, servicing existing ones, or diagnosing and resolving issues to keep water flowing smoothly into your home.
Working with Newly Drilled Wells
While we do not drill wells, once you have your new well drilled, our team can help you get the most out of it. From developing the well to designing a custom pumping system tailored to your needs, we have the experience and knowledge to get you into water.
Improving Existing Systems
If your existing water well pumping system has issues, we can help, even if we did not do the original install. We diagnose and fix problems, potentially saving you the cost of pulling out the entire system. If needed, we can quickly pull the system, repair it in our full-service machine shop, and use our large inventory to replace components with minimal downtime. Our design team ensures your system is tailored to your specific needs.
Service & Maintenance
Water well pumping systems need regular service and maintenance. While customers can handle basic upkeep, minor issues can cause major headaches and may require professional attention. Our service technicians are available 24/7 to diagnose and fix problems, getting your system back up and running quickly.
Electrical
Sometimes your pump is fine but the electrical components are keeping it from running. We can diagnose and fix those pumping system issues as well.
Filter Systems
Filters can require a lot of maintenance. We can install, maintain, or replace several different types of agricultural and domestic filtering systems.
Tanks
Tank services ensure the seamless operation of pumping systems. As a vital component, tanks can develop minor issues that may disrupt performance. We quickly identify and resolve these common, easily correctable problems to keep your system running smoothly.

Pump Inspections & Water Analysis
Our service technicians perform thorough inspections of water well pumping systems and collect water samples for laboratory analysis, whether for property sales, compliance, or peace of mind.
24/7 Service
With over 100 years of service in the Central Valley, we understand that access to water is essential. That is why we offer 24/7 on-call service technicians.
Whether it’s a simple reset or a pump replacement, our technicians are available day or night, weekends, and holidays to diagnose and fix your water issues. When you need water, you need CJ Hammer Pump Co. – weekends, and holidays.