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Backflow testing in St Helens, OR

13 backflow testing businesses work within 25 miles of St Helens, 2 of them based in town. Every one has testers on Oregon's certified backflow tester roster.

13 businesses within 25 miles
1 for-hire testers based in St Helens

Certified backflow testers near St Helens

What the badges mean
✓ OR Certified Backflow Tester Verified
A state roster lists at least one certified tester at this business, with a current certificate. The state sets the exam and renewal.
3 certified testers
How many certified testers the roster lists at this business.
★ 4.8 (25 reviews)
The Google rating, shown as Google reports it. It does not change the order.

Order is by our quality score, never by payment. How we verify listings.

McMullen Water Systems

100/100
✓ OR Certified Backflow Tester Verified #BAT-5585 ★ 4.8 (106 reviews) 2 certified testers Backflow Testing

145 N 19th St, St Helens, OR 97051 · under 1 mile from St Helens

Call (503) 397-1744 Details Website

Verified Oct 2026 · Unclaimed listing

Wild Pine Plumbing

90/100
✓ OR Certified Backflow Tester Verified #BAT-300659 ★ 4.9 (187 reviews) Backflow Testing

34997 Whitetail Ave, St Helens, OR 97051 · under 1 mile from St Helens

Call (541) 285-2616 Details Website

Verified Oct 2026 · Unclaimed listing

United Fire

100/100
✓ OR Certified Backflow Tester Verified #BAT-5707 ★ 4.9 (481 reviews) 2 certified testers Backflow Testing

4611 NE Martin Luther King Jr Blvd, Portland, OR 97211 · 22 mi from St Helens

Call (503) 249-0771 Details Website

Verified Oct 2026 · Unclaimed listing

Basic Fire Protection

90/100
✓ OR Certified Backflow Tester Verified #BAT-175423 ★ 2.4 (8 reviews) 2 certified testers Backflow Testing

8135 NE Martin Luther King Jr Blvd, Portland, OR 97211 · 21 mi from St Helens

Call (503) 285-1855 Details Website

Verified Oct 2026 · Unclaimed listing

Peak Fire Protection

90/100
✓ OR Certified Backflow Tester Verified #BAT-854201 ★ 5 (22 reviews) Backflow Testing

2095 NE Aloclek Dr Ste 1108, Hillsboro, OR 97124 · 22 mi from St Helens

Call (541) 640-7325 Details Website

Verified Oct 2026 · Unclaimed listing

Aqua Tech

80/100
✓ OR Certified Backflow Tester Verified #BAT-5696 ★ 4.9 (11 reviews) Backflow Testing

3439 NE Sandy Blvd #836, Portland, OR 97232 · 24 mi from St Helens

Call (971) 570-4039 Details

Verified Oct 2026 · Unclaimed listing

Never miss your annual backflow test

Most water utilities require the backflow assembly on an irrigation, fire or commercial line to be tested every year, and a missed test can mean a shutoff notice. Tell us when yours was last tested in St Helens and we'll text you a month before it is due, with certified local testers ready to book.

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Backflow testing questions in St Helens

Who can test a backflow preventer in St Helens?

A tester certified by Oregon Health Authority. Your water utility may also keep its own list of testers allowed to file reports. Check the notice your utility sent.

How many certified backflow testers are based in St Helens?

1 testers who test for the public list St Helens as their base on Oregon's roster, and 13 testing businesses are within 25 miles.

How often do I need a backflow test?

Most utilities require a test when the assembly is installed and then every year. Your utility's notice gives the due date and how the tester files the report.

Roster: Oregon Health Authority, read October 6, 2026.

Approved list: EWEB backflow tester list, Eugene Water & Electric Board.

Approved list: Clackamas River Water public list of backflow testing companies, Clackamas River Water.

Approved list: City of Gresham backflow tester list, City of Gresham Environmental Services.

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