BackflowNear Test-Due Reminder

Approved backflow testers in Ferndale, MI

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

25 businesses within 25 miles

Backflow testing companies near Ferndale

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

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 · under 1 mile from Ferndale

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

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 · 1 mi from Ferndale

Call (248) 548-6985 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 · 5 mi from Ferndale

Call (248) 514-0809 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 · 12 mi from Ferndale

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

Putman & Sons Plumbing

90/100
✓ MI Utility-Approved Tester Verified ★ 4.8 (697 reviews) On Oakland County WRC list Backflow Testing

2175 Crooks Rd, Rochester Hills, MI 48309 · 13 mi from Ferndale

Call (248) 652-0990 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 · 15 mi from Ferndale

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

Shelby Mechanical LLC

90/100
✓ MI Utility-Approved Tester Verified ★ 4.9 (609 reviews) On City of Ann Arbor list Backflow Testing

51334 Oro Rd, Shelby Township, MI 48315 · 16 mi from Ferndale

Call (586) 726-9444 Details Website
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 · 17 mi from Ferndale

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 · 19 mi from Ferndale

Call (586) 948-2822 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 · 13 mi from Ferndale

Call (248) 853-2920 Details
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 · 14 mi from Ferndale

Call (734) 744-4134 Details
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 Ferndale

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

Price reports

What a backflow test costs in Ferndale

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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 Ferndale

Where are the backflow testing businesses listed for Ferndale based?

25 backflow testing businesses are listed within 25 miles of Ferndale. 2 are based in Ferndale itself, 17 more within 15 miles and 6 further out, up to 19 miles away. Other towns with more than one listing: Livonia (4), Farmington Hills (3) and Rochester Hills (3). The closest is Cregger Plumbing, Heating, & Cooling, under 1 mile from Ferndale.

Which tester lists are the businesses near Ferndale 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 Ferndale have Google reviews?

24 of the 25 listed for Ferndale 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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