BackflowNear Test-Due Reminder

Approved backflow testers in Bristow, VA

16 backflow testing businesses work within 25 miles of Bristow, 2 of them based in town. Every one is on the approved tester list of 4 water utilities.

16 businesses within 25 miles

Backflow testing companies near Bristow

What the badges mean
✓ VA Utility-Approved Tester Verified On the city list
The company is on a water utility's own approved list (the second badge names the list). That is the utility's approval, not a state license, and it counts for that utility.
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.

Are you a backflow testing company near Bristow? One sponsor per county, clearly labelled. Sponsor this county

KT Irrigation, LLC

90/100
✓ VA Utility-Approved Tester Verified ★ 2.9 (19 reviews) On Loudoun Water list Backflow Testing

8040 Industrial Park Ct, Bristow, VA 20136 · 2 mi from Bristow

Call (703) 479-2638 Details Website
Verified Oct 2026 · Unclaimed listing

HMS Plumbing LLC

90/100
✓ VA Utility-Approved Tester Verified ★ 4.1 (21 reviews) On City of Rockville list Backflow Testing

10319 Piper Ln, Bristow, VA 20136 · 2 mi from Bristow

Call (703) 583-8205 Details Website
Verified Oct 2026 · Unclaimed listing

Woodbridge Plumbing

90/100
✓ VA Utility-Approved Tester Verified ★ 4.6 (90 reviews) On Loudoun Water list Backflow Testing

2705 Code Way, Woodbridge, VA 22192 · 16 mi from Bristow

Call (703) 494-9666 Details Website
Verified Oct 2026 · Unclaimed listing

Wacker Plumbing

90/100
✓ VA Utility-Approved Tester Verified ★ 4.8 (138 reviews) On Loudoun Water list Backflow Testing

22580 Glenn Dr #13, Sterling, VA 20164 · 18 mi from Bristow

Call (703) 450-5565 Details Website
Verified Oct 2026 · Unclaimed listing

Backflow Technology, LLC

90/100
✓ VA Utility-Approved Tester Verified ★ 4.8 (8 reviews) On DC Water listOn City of Rockville listOn Loudoun Water list Backflow Testing

20700 Loudoun County Pkwy #192, Ashburn, VA 20147 · 21 mi from Bristow

Call (703) 450-5898 Details Website
Verified Oct 2026 · Unclaimed listing

Price reports

What a backflow test costs in Bristow

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Published prices nationwide

$29.99 to $100 per assembly

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

Every published price, with its source: what a backflow test costs.

Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.

Had your backflow test done? Share what you paid to see local prices.

Independent certified testers based in Bristow

Testers the Virginia Department of Professional and Occupational Regulation certifies, based in Bristow. Its list gives no company or phone, and does not say who tests for the public.

TownTesterCertificateExpires
Bristow Francisco D Ortega 058967 May 2028
Michael C Sonon 060136 Mar 2027

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Backflow testing questions in Bristow

Where are the backflow testing businesses listed for Bristow based?

16 backflow testing businesses are listed within 25 miles of Bristow. 2 are based in Bristow itself, 2 more within 15 miles and 12 further out, up to 24 miles away. Other towns with more than one listing: Sterling (4), Alexandria (2) and Ashburn (2). The closest is KT Irrigation, LLC, 2 miles from Bristow.

Which tester lists are the businesses near Bristow on?

Every one is on the approved tester list of 4 water utilities. 2 certified testers appear on the roster in Bristow without a company; they are in the table on this page.

How many of the backflow testing businesses near Bristow have Google reviews?

16 of the 16 listed for Bristow have 3 or more Google reviews. Wilhelm Mechanical, LLC dba Vern’s Plumbing has the most reviews, 1,022, with an average of 4.9 stars, as Google showed them at our last check.

Approved list: City of Norfolk backflow device testers list, City of Norfolk Department of Utilities.

Approved list: Loudoun Water backflow tester list (DPOR certified), Loudoun Water.

Approved list: BRWA certified backflow testers list, Bedford Regional Water Authority.

Approved list: Backflow Prevention Assembly Service Providers, DC Water.

Approved list: City of Rockville certified backflow prevention testers, City of Rockville Department of Public Works.

Approved list: Kingsport Water Services backflow contractor list, City of Kingsport Water Services.

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