Well Drilling & Pump Repair in Yuba City, CA
We drill wells and we fix pumps. When your water quits, your pressure's acting up or you need a new well, David and Aaron Ratti and their crew handle the whole system, from the casing in the ground to the tank by the house.
What's your water doing?
Pick what you're seeing. You'll get the usual causes, what to do right now, and where to go next.
No water at all
Likely causes
- Tripped breaker or failed pressure switch
- Burned control box or bad wiring in the well
- Failed pump motor or split drop pipe
- Water level dropped below the pump
What to do right now
- Check if it's every faucet or just one
- Reset the pump breaker once. If it trips again, leave it off
- If the pump hums but the gauge won't climb, turn it off to protect it
Pump turns on and off
Likely causes
- Waterlogged pressure tank (most common)
- Tank air charge set wrong
- Worn or clogged pressure switch
- A leak or a bad check valve
- Tank too small for the pump
What to do right now
- Knock on the tank: solid all the way up means waterlogged
- Watch the gauge for 30 minutes with all water off
- Fix it soon. Every extra start wears out the pump
Pump won't shut off
Likely causes
- Water running somewhere: toilet, hose, irrigation
- Leak in the buried line
- Stuck or clogged pressure switch
- Low water level, split drop pipe or worn pump
What to do right now
- Turn the breaker off to protect the motor
- Look for running fixtures and wet spots in the yard
- If pressure climbs past cut-off, leave it off and call
Weak or uneven pressure
Likely causes
- Pressure switch settings or a tired pump
- Clogged filter or softener
- Undersized tank or system for the property
- Larger or hillside home that needs steady pressure
What to do right now
- Put treatment equipment in bypass and compare
- Note whether pressure drops when a second tap opens
- Ask about a constant pressure system
Sand, cloudy or less water
Likely causes
- Sediment or mineral scale clogging the screen
- Damaged screen or casing
- Pump set too low or too high
- Water level dropping in summer
What to do right now
- Note when it started and whether it's worse in summer
- Check how fast filters are clogging
- Ask for a downhole camera inspection before replacing anything
Need a new well
Likely causes
- Building on a rural parcel
- Old well went dry or failed
- Orchard or pasture needs more water
- Adding a shop, ADU or livestock
What to do right now
- Know your parcel and how you'll use the water
- Start early. County permits take time
- Plan to destroy the old well if replacing one
Old well on the property
Likely causes
- Selling a home or ranch
- Switched to city water
- Land being built on or divided
- Orchard removed, irrigation well unused
What to do right now
- Don't fill it in yourself
- Start before escrow. Permits take lead time
- Ask whether it can be saved instead
Everything from the well to the faucet
Each number on the diagram is a part of your well. Tap it, or pick a service, to see how we handle it.
Well Pump Repair & Replacement
No water or dropping pressure? Submersible and jet pumps diagnosed, repaired and replaced, including deep-set pumps.
02Pressure Tank Repair & Replacement
Pump clicking on every time you open a tap? We test the tank, switch and pump before replacing anything.
03Constant Pressure Systems
Variable speed pumps that hold steady, city-like pressure at every faucet, even with everything running.
04Domestic Well Drilling
New household wells from siting and permits to drilling, casing, pump, tank and flow test.
05Agricultural & Irrigation Well Drilling
High-capacity wells for orchards, row crops, pasture and livestock, sized around the flow you need.
06Well Cleanout & Rehabilitation
Camera inspection, cleaning and redevelopment to bring a declining well back before you drill new.
07Well Destruction & Abandonment
Old or unused wells destroyed to California standards, with the county permit and paperwork handled.
Drillers and pump techs. One crew.
Most companies either drill wells or service pumps. When something goes wrong, that means two contractors and finger-pointing. DNA does both.
| What you need | DNA Well Drilling | Typical pump-only shop | Typical drilling-only company |
|---|---|---|---|
| Drill new domestic and ag wells | Yes | No | Yes |
| Pull and service deep-set pumps in-house | Yes | No | Varies |
| Pump, pressure tank and control service | Yes | Yes | No |
| Camera inspection and well rehab | Yes | Varies | Varies |
| Permitted well destruction | Yes | No | Yes |
| One crew from the well to the faucet | Yes | No | No |
Our crew, our rig, our installs
No stock photos here. Every picture on this site is from a real DNA job.
Run by David and Aaron Ratti
DNA is a family-owned company, not a franchise or a dispatch center. When you call, you're talking to the people who run the rig and pull the pumps, and who live in the same valley you do.
- Emergency and same-day service when you're out of water
- Our own drilling rig for new wells and deep-set pumps
- Downhole camera inspections before big decisions
- County permits handled for new wells and destructions
- Free written estimates, and no pricing games
From first call to running water
Call or text
Tell us what the water is doing. A photo of the tank or wellhead helps.
We diagnose
We test the electrical side, the pressure system and the well before naming a part.
Free estimate
You get honest options and a written estimate. Repair beats replace when it can.
Work and test
We handle permits, do the work to code and test the system before we leave.
Oroville to Sacramento, Colusa to Roseville
From our home base in Yuba City, we drill and service wells across nine cities and the farms, ranches and rural properties around them. Pick your city for local details.
Answers from the people who fix it
Well Pump Won't Shut Off? Here's What's Going On and What to Do
Why a pump runs nonstop, a five-minute gauge test to narrow it down, and the seven usual causes.
Read the guideOld wellsOld or Abandoned Well on Your Property? Here's What California Requires
When a well counts as abandoned, why California requires destruction, and how the permit and process work.
Read the guidePressure problemsWhy Does My Well Pump Keep Turning On and Off?
What causes short cycling, how to test your pressure tank yourself, and what the fix usually looks like.
Read the guideNo waterNo Water From Your Well? 7 Things to Check Before You Call
Seven safe checks to run in order, what each one tells you, and when it's time to call for help.
Read the guideQ01Do you offer emergency and same-day well service?
Yes. When you're out of water, call (530) 565-3871. We offer emergency and same-day service and will give you a realistic arrival time.
Q02Do you drill wells or just fix pumps?
Both. DNA drills domestic and agricultural wells and services pumps, pressure tanks and controls. Most companies do one or the other. We handle the whole system.
Q03Are you licensed?
Yes. DNA Well Drilling LLC holds California C-57 Well Drilling Contractor License #1108209. You can verify it on the CSLB website.
Q04What areas do you serve?
We're based in Yuba City and serve Yuba City, Marysville, Sutter, Gridley, Colusa, Oroville, Plumas Lake, Sacramento and Roseville, plus the rural and agricultural areas around them.
Q05Do you give free estimates?
Yes. We diagnose the problem first and give you a free written estimate before any work starts.
Q06Can you pull a deep-set pump?
Yes. Because we run our own drilling rig, we can pull and service deep-set pumps that pump-only shops have to sub out.
Get a free estimate
Tell us what's going on and where the property is. We'll call or text you back.