Gundlach Sheet Metal
90/100 ✓ OH Utility-Approved Tester Verified #11686 ★ 4.9 (511 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Approved backflow testers in Sandusky, OH
11 backflow testing businesses work within 25 miles of Sandusky, 2 of them based in town. Every one is on the approved tester list of 3 water utilities.
11 businesses within 25 miles
Backflow testing companies near Sandusky
Most of these businesses are also listed on Fremont, OH.
What the badges mean
- ✓ OH 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 Sandusky? One sponsor per county, clearly labelled. Sponsor this county
KJC Mechanical
90/100 ✓ OH Utility-Approved Tester Verified #5418 On Ottawa County listOn Northwestern Water and Sewer District list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Starcher Enterprises, LLC
90/100 ✓ OH Utility-Approved Tester Verified #5440 ★ 4.6 (37 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Ohler & Holzhauer
90/100 ✓ OH Utility-Approved Tester Verified #10557 ★ 4 (54 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
H&H Plumbing & Heating, LLC
80/100 ✓ OH Utility-Approved Tester Verified #2729 ★ 4.8 (15 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
S.A. Comunale
100/100 ✓ OH Utility-Approved Tester Verified #10407 2 certified testersOn Ottawa County listOn Northwestern Water and Sewer District list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Automatic Fire Protection
90/100 ✓ OH Utility-Approved Tester Verified On Zanesville-Muskingum County Health Department list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Marlin White & Sons, Inc.
90/100 ✓ OH Utility-Approved Tester Verified #4659 On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Witt & Gaines
90/100 ✓ OH Utility-Approved Tester Verified #10556 ★ 4.6 (19 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Rick Evans Plbg-Htg-Air Cond
80/100 ✓ OH Utility-Approved Tester Verified #3936 ★ 3.6 (13 reviews) On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
✓ OH Utility-Approved Tester Verified #723 On Ottawa County list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Price reports
What a backflow test costs in Sandusky
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Published prices nationwide
$29.99 to $100 per assembly
$0$25$50$75$100$125
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 Sandusky
Where are the backflow testing businesses listed for Sandusky based?
11 backflow testing businesses are listed within 25 miles of Sandusky. 2 are based in Sandusky itself, 3 more within 15 miles and 6 further out, up to 24 miles away. Other towns with more than one listing: Fremont (5). The closest is Gundlach Sheet Metal, 1 mile from Sandusky.
Which tester lists are the businesses near Sandusky on?
Every one is on the approved tester list of 3 water utilities.
How many of the backflow testing businesses near Sandusky have Google reviews?
6 of the 11 listed for Sandusky have 3 or more Google reviews. Gundlach Sheet Metal has the most reviews, 511, with an average of 4.9 stars, as Google showed them at our last check.
Approved list: City of Newark, Ohio companies employing State of Ohio certified backflow testers, City of Newark Water Department.
Approved list: City of Columbus approved backflow testers, City of Columbus.
Approved list: Del-Co Water active backflow testers, Del-Co Water Company.
Approved list: Zanesville-Muskingum County Health Department certified backflow testers, Zanesville-Muskingum County Health Department.
Approved list: Northwestern Water and Sewer District certified backflow testers, Northwestern Water and Sewer District.
Approved list: Ottawa County area Ohio Department of Commerce certified backflow testers, Ottawa County Sanitary Engineer.
Approved list: City of Columbus approved backflow testers (irrigation devices), City of Columbus.
Approved list: Trumbull County Combined Health District plumbers certified to test backflow devices, Trumbull County Combined Health District.
Keep looking
- Fremont, OH(23 mi)
- Mansfield, OH(46 mi)
- Toledo, OH(48 mi)
- Perrysburg, OH(50 mi)
- Maumee, OH(53 mi)
- Cleveland, OH(53 mi)
- Findlay, OH(56 mi)