BackflowNear Test-Due Reminder

Approved backflow testers in Ann Arbor, MI

20 backflow testing businesses work within 25 miles of Ann Arbor, 6 of them based in town. Every one is on the approved tester list of City of Ann Arbor and Oakland County WRC.

20 businesses within 25 miles

Backflow testing companies near Ann Arbor

What the badges mean
✓ MI 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 Ann Arbor? One sponsor per county, clearly labelled. Sponsor this county

Boone & Darr, Inc.

90/100
✓ MI Utility-Approved Tester Verified ★ 4.1 (16 reviews) On City of Ann Arbor list Backflow Testing

4465 S State Rd, Ann Arbor, MI 48108 · 1 mi from Ann Arbor

Call (734) 665-0648 Details Website
Verified Oct 2026 · Unclaimed listing

AI Walk Plumbing

80/100
✓ MI Utility-Approved Tester Verified ★ 5 (6 reviews) On City of Ann Arbor list Backflow Testing

719 W Ellsworth Rd #1B, Ann Arbor, MI 48108 · 1 mi from Ann Arbor

Call (734) 994-5610 Details
Verified Oct 2026 · Unclaimed listing

Haley Mechanical

90/100
✓ MI Utility-Approved Tester Verified ★ 4.9 (5556 reviews) On City of Ann Arbor list Backflow Testing

8415 Dexter-Chelsea Rd, Dexter, MI 48130 · 11 mi from Ann Arbor

Call (734) 424-9170 Details Website
Verified Oct 2026 · Unclaimed listing

A & R Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.3 (95 reviews) On City of Ann Arbor list Backflow Testing

10855 Silver Lake Rd, South Lyon, MI 48178 · 16 mi from Ann Arbor

Call (248) 912-2574 Details Website
Verified Oct 2026 · Unclaimed listing

Thornton & Grooms

90/100
✓ MI Utility-Approved Tester Verified ★ 4.9 (16204 reviews) On Oakland County WRC list Backflow Testing

24565 Hallwood Ct, Farmington Hills, MI 48335 · 23 mi from Ann Arbor

Call (248) 644-7810 Details Website
Verified Oct 2026 · Unclaimed listing

A-1 Comfort Control LLC

90/100
✓ MI Utility-Approved Tester Verified ★ 3.5 (29 reviews) On Oakland County WRC list Backflow Testing

31128 W 8 Mile Rd, Farmington Hills, MI 48336 · 24 mi from Ann Arbor

Call (248) 476-2323 Details Website
Verified Oct 2026 · Unclaimed listing

PTS Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.3 (6 reviews) On City of Ann Arbor list Backflow Testing

1256 Fendt Dr, Howell, MI 48843 · 25 mi from Ann Arbor

Call (810) 602-6803 Details Website
Verified Oct 2026 · Unclaimed listing

Lighthouse Plumbing Services, Inc

80/100
✓ MI Utility-Approved Tester Verified ★ 4.3 (6 reviews) On Oakland County WRC listOn City of Ann Arbor list Backflow Testing

34021 Schoolcraft, Livonia, MI 48150 · 20 mi from Ann Arbor

Call (734) 744-4134 Details
Verified Oct 2026 · Unclaimed listing

Price reports

What a backflow test costs in Ann Arbor

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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.

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Backflow testing questions in Ann Arbor

Where are the backflow testing businesses listed for Ann Arbor based?

20 backflow testing businesses are listed within 25 miles of Ann Arbor. 6 are based in Ann Arbor itself, 3 more within 15 miles and 11 further out, up to 25 miles away. Other towns with more than one listing: Livonia (4) and Farmington Hills (2). The closest is Hutzel Plumbing & Heating, under 1 mile from Ann Arbor.

Which tester lists are the businesses near Ann Arbor on?

Every one is on the approved tester list of City of Ann Arbor and Oakland County WRC.

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

19 of the 20 listed for Ann Arbor have 3 or more Google reviews. Thornton & Grooms has the most reviews, 16,204, with an average of 4.9 stars, as Google showed them at our last check.

Approved list: Oakland County WRC backflow prevention assembly testers, Oakland County Water Resources Commissioner.

Approved list: Certified backflow testers servicing the Ann Arbor area, City of Ann Arbor Public Works.

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