BackflowNear Test-Due Reminder

Approved backflow testers in Troy, MI

29 backflow testing businesses work within 25 miles of Troy, 2 of them based in town. Every one is on the approved tester list of Oakland County WRC and City of Ann Arbor.

29 businesses within 25 miles

Backflow testing companies near Troy

Most of these businesses are also listed on Rochester Hills, MI.

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 Troy? One sponsor per county, clearly labelled. Sponsor this county

Able Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 3.8 (14 reviews) On City of Ann Arbor list Backflow Testing

24410 John R Rd, Hazel Park, MI 48030 · 6 mi from Troy

Call (248) 548-6985 Details Website
Verified Oct 2026 · Unclaimed listing

Waterwork LLC

90/100
✓ MI Utility-Approved Tester Verified ★ 4.7 (2327 reviews) On Oakland County WRC list Backflow Testing

1049 Hilton Rd, Ferndale, MI 48220 · 7 mi from Troy

Call (248) 542-8022 Details Website
Verified Oct 2026 · Unclaimed listing

Royal Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.7 (86 reviews) On Oakland County WRC list Backflow Testing

16947 W 10 Mile Rd, Southfield, MI 48075 · 7 mi from Troy

Call (248) 514-0809 Details Website
Verified Oct 2026 · Unclaimed listing

Huron Plumbing, Inc

80/100
✓ MI Utility-Approved Tester Verified On Oakland County WRC list Backflow Testing

3956 Dunning Rd, Rochester Hills, MI 48309 · 7 mi from Troy

Call (248) 853-2920 Details
Verified Oct 2026 · Unclaimed listing

Evelux Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.5 (133 reviews) On Oakland County WRC list Backflow Testing

3930 Elizabeth Lake Rd, Waterford Township, MI 48328 · 14 mi from Troy

Call (248) 310-4603 Details Website
Verified Oct 2026 · Unclaimed listing

LPS Plumbing Co Inc

90/100
✓ MI Utility-Approved Tester Verified ★ 4.5 (56 reviews) On Oakland County WRC listOn City of Ann Arbor list Backflow Testing

46435 Continental Dr, New Baltimore, MI 48047 · 15 mi from Troy

Call (586) 948-2822 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 · 17 mi from Troy

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

H Muskovitz Plumbing Company

80/100
✓ MI Utility-Approved Tester Verified ★ 5 (3 reviews) On Oakland County WRC list Backflow Testing

35262 Spring Hill Rd, Farmington Hills, MI 48331 · 15 mi from Troy

Call (248) 855-2444 Details
Verified Oct 2026 · Unclaimed listing

Delong Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.3 (41 reviews) On Oakland County WRC list Backflow Testing

540 Tanview Dr, Oxford, MI 48371 · 20 mi from Troy

Call (248) 693-5890 Details Website
Verified Oct 2026 · Unclaimed listing

NES Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.8 (380 reviews) On Oakland County WRC list Backflow Testing

78 N Washington St, Oxford, MI 48371 · 21 mi from Troy

Call (248) 800-4144 Details Website
Verified Oct 2026 · Unclaimed listing

Price reports

What a backflow test costs in Troy

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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 Troy

Where are the backflow testing businesses listed for Troy based?

29 backflow testing businesses are listed within 25 miles of Troy. 2 are based in Troy itself, 17 more within 15 miles and 10 further out, up to 23 miles away. Other towns with more than one listing: Livonia (4), Oxford (4) and Farmington Hills (3). The closest is Big Beaver Plumbing & Backflow, LLC, 1 mile from Troy.

Which tester lists are the businesses near Troy on?

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

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

27 of the 29 listed for Troy 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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