Backflow Repair & Replacement in Sherwood, OR

Sherwood Plumbing repairs and replaces backflow assemblies — DCVA, PVB, and RPZ devices — across Sherwood, Tualatin, Tigard, Beaverton, Wilsonville, and Newberg; we do repair and replacement only, not annual testing. A backflow assembly is the device that keeps contaminated water from flowing backward into your potable supply — yours or your neighbors’. Most homeowners don’t think about it until their annual test fails, the device freezes during a hard winter, or a buyer’s home inspection flags a leaking unit during a sale.

When that happens, you need it fixed or replaced. That’s what we do.

Important to know up front: we don’t do the annual testing. Backflow certification testing requires a separate Oregon-issued tester certification beyond the CCB plumbing license, and we’re not currently certified to test. If your purveyor sent you an annual test notice, you’ll need a certified backflow tester to perform the test. If the test fails, that’s where we come in — we repair or replace the assembly and you bring the work back to your tester for the re-test.

We handle backflow repair and replacement across Sherwood, Tualatin, Tigard, Beaverton, Wilsonville, and Newberg.

We repair failed internal parts on backflow assemblies and replace units that are past repair, matching the replacement device to the application.

Backflow assembly repair

Backflow preventers fail in predictable ways. The internal poppets wear out, check valves stick, relief valves leak, springs lose tension. Most failures are repairable with internal-parts replacement rather than swapping the whole device — much cheaper than full replacement.

We source parts for the common brands (Febco, Watts, Wilkins, Apollo) and rebuild the assembly to working condition. Once we’re done, the device is ready for re-testing by your certified tester.

Backflow assembly replacement

When a device is past repair — old age, frozen and cracked during a hard winter, physical damage from landscaping or a vehicle, parts no longer available for the model — replacement is the fastest path back to compliance.

The right replacement device depends on the application:

• DCVA (double check valve assembly). Residential irrigation, low-hazard applications.
• PVB (pressure vacuum breaker). Common on residential irrigation, outdoor installation. Susceptible to freeze damage.
• RPZ (reduced pressure zone device). Higher-hazard applications, commercial work, irrigation with chemical injection.

We pull the failed unit, install the replacement matched to the application and jurisdiction requirements, and re-pressurize. From there, your certified tester confirms the replacement passes their test.

Common scenarios we see

• Hard freeze cracked the brass body. Outdoor PVBs and DCVAs without proper insulation are the usual victims. Replacement is the only fix.
• Annual test failed and the report calls out a specific check valve or relief valve. Repair of the failed component is usually all that’s needed.
• Buyer’s home inspection flagged a leaking device on a property in escrow. Quick turnaround on repair or replacement so the sale doesn’t slip.
• Old device is leaking and parts aren’t available anymore. Replacement with a current-code unit.

We identify the failure on site, quote the repair or replacement, do the work (same-visit if we have the parts), then pressurize and verify there are no leaks. Call or text (503) 822-5070. We’ll ask what’s going on — failed test, visible leak, freeze damage, age — and what brand and size the device is if you know it.

On site: we open the assembly, identify the failure, and quote the repair or replacement. Repairs are usually same-visit if we have the parts (or next-visit if we have to order). Replacements are scheduled based on parts availability — DCVAs are usually fast, larger RPZs may take a day or two.

We pressurize the system at the end and verify there are no leaks. From there, your certified tester re-tests for the compliance paperwork.

Payment at the end: credit card or check.

We’re upfront that we don’t do annual testing, and we specialize in fast-turnaround repair and replacement for real-estate deadlines, backed by close to 20 years of experience. Backflow is one of those things where being upfront about scope matters more than upselling. We don’t do annual testing — that’s a separate Oregon Health Authority certification we don’t currently hold. We tell customers that on the first call so nobody’s confused about what we can actually do. Repair and replacement is what we’re good at; testing is a separate workstream.

Where we shine is real-estate-driven backflow work. A buyer’s home inspection flags a leaking RPZ on a property that’s already in escrow, and the closing date is in two weeks. That’s a fast-turnaround scenario we run into a lot — especially for sewer scope work — and we structure those visits to fit the deadline. Devin’s been doing this for close to 20 years; Austin and Chase are on the trucks too. We diagnose first, then quote. Clean, respectful, organized — every visit.

Sherwood Plumbing is at 22800 SW Conifer Drive, covering a 25-mile radius across Washington County with parts of Clackamas and Yamhill:

• Sherwood
• Tualatin
• Tigard
• Wilsonville
• Beaverton
• Newberg

Sherwood Plumbing has been running since 2013 under Devin Drew Adams. We’re headquartered in Sherwood, the only plumbing company actually based in town. Our techs know the housing stock around here: the 1970s gas tank in a Sherwood ranch, the 2015 tankless in a Villebois build, the electric tank in a Cedar Hills postwar home. That local knowledge is the difference between a diagnosis that takes 20 minutes and one that takes two hours.

We carry $1,000,000 in general liability through Contractors Bonding & Insurance. Oregon CCB license #200851 (Plumbing, Residential RGC General Contractor). PB1381 with the Oregon Building Codes Division. $25,000 surety bond. 220 Google reviews at 4.7 stars.