
Backflow Testing & Prevention in Woodland
Protecting Your Yolo County Home’s Water Supply from Contamination
Backflow can pose a serious risk to your home’s water supply, compromising its cleanliness and safety. When pressure changes inside your plumbing system push dirty water backward into your clean water supply, everything from fertilizer runoff to bacteria can end up in your drinking water. It’s not always visible. It rarely smells. But it’s dangerous and exactly why backflow prevention devices exist.
At Hall's Plumbing, we provide certified backflow testing and prevention services for homeowners across Woodland, Davis, and surrounding areas. Whether you’ve received a notice from the city or just want peace of mind, we’re here to help you stay compliant and protected.
Worried about your home’s water safety? Call (530) 443-5818 or complete our online form to schedule certified backflow testing in Woodland and the surrounding area. Hablamos español.
What to Expect from Our Backflow Testing Service
At Hall's Plumbing, we make the process simple. Our certified technicians arrive on time, locate and assess your backflow prevention device, and perform all necessary testing to verify functionality. If the unit needs repair or replacement, we’ll explain your options clearly and get it fixed without delays.
Here’s what’s included:
- Certified testing with calibrated equipment
- Inspection of backflow assembly and all connections
- Diagnosis of mechanical failure or obstruction
- Repair or full replacement, if needed
- Filing of compliance paperwork with local authorities
You want to protect your home and your family—without hassle or confusion. We get that. Our team at Hall's Plumbing has years of experience with residential plumbing codes and backflow prevention requirements specific to Woodland and surrounding areas. From one-time inspections to device replacement, we offer honest guidance, 24/7 emergency response, and dependable results.

Why Choose Hall's Plumbing?
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Proud to be your local plumbing team, delivering trusted service backed by decades of experience.
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Financing through Synchrony makes it easy to tackle your plumbing repairs or upgrades today.
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We price by the job, not the hour, with options for every budget and no surprise fees.
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Day or night, we're here when you need us with 24/7 plumbing support you can count on.
Why Backflow Testing Is Essential
Most homes are connected to a municipal water supply that’s pressurized to keep water flowing in the right direction. However, pressure changes can happen when firefighters open a hydrant nearby, when a main line breaks, or even during system maintenance. When that happens, contaminated water from irrigation systems, pools, or external hoses can flow back into the clean water line.
City codes require backflow prevention assemblies to stop that from happening. These devices aren’t set-and-forget—they must be tested regularly to make sure they’re working. In some neighborhoods, annual testing is legally required.
Common risks of untested backflow systems:
- Health hazards – Bacteria, pesticides, and other contaminants can enter your drinking water without warning.
- Code violations – Local municipalities often enforce strict testing regulations, especially for homes with irrigation systems.
- Expensive repairs – A failed or leaking device can cause internal pressure problems or water damage over time.
- Unseen contamination – Backflow doesn’t always have signs you can see or smell, making testing the only way to confirm safety.
- Increased liability – If backflow from your property affects the public water system, you may be held responsible.
If you’ve never had your device tested—or if you’re not sure your home even has one—this is the time to find out. Our backflow testing technicians at Hall's Plumbing can help provide you with some solid answers.

Why Local Homeowners Choose Us
Backflow prevention is a specialized service, and it needs to be done by certified professionals who understand the stakes. With Hall's Plumbing, you get more than just a test. You're getting peace of mind and straightforward service from a local team that takes the job seriously.
What makes us the right choice:
- Certified backflow testers
- Transparent pricing
- Fast scheduling
- Local code knowledge
- Repair and replacement support
Protect your water—and your home. Call (530) 443-5818 today to request a free estimate for backflow testing in Woodland and beyond with Hall's Plumbing.
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“Really appreciated the detailed explanation of the issue and presentation of multiple available solutions.”- Tiffany H.
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“I’ve used Hall’s twice in the last few months for unrelated issues.”- Ashley T.
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“Hall's Plumbing has done my water heater replacement, plus repairs to sewer and water main for me.”- Cathy B.
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“Plumbing is not an inexpensive venture but at least we were compensated with great service!”- Kathleen H.
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“Chris clearly communicated over the phone what the issue was and was able to restore the plumbing at the house back to normal in a quick manner. He was friendly and efficient, and we will for sure use Hall's again and request Chris!”- Skyler G.
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“Chris was fantastic and exceeded expectations in all ways.”- Joe M.
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“He solved our issue quickly and efficiently. He was friendly, informative and an excellent plumber. I am so glad that we used Halls and can’t recommend them, or Chris, highly enough. Well done and many thanks!”- Joe M.
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“Would highly recommend this company and Orlando specifically. We'll done, Sir!”- Matthew W.