W O Blackstone, Columbia, SC: Backflow Testing

Certification

✓ On South Carolina's certified backflow tester roster Phone matches its Google profile

Certified tester	Certificate	Expires
Billy G Youngblood	140200127	December 2027

From the South Carolina Department of Environmental Services roster, read July 9, 2026. The roster lists people, not companies; these are the certified testers it lists for this business. Ask which tester will do your test, and your utility may also require the tester to be registered with it.

Call (803) 360-1797 Visit website More testers in South Carolina

Price reports

What a backflow test costs in Columbia

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Published prices nationwide

$29.99 to $100 per assembly

$0$25$50$75$100$125

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.

What W O Blackstone's website says

It says	Details	Page
Service area	Aiken, Charleston, Columbia, Florence, Greenville, Orangeburg, Rock Hill, Spartanburg, Sumter, Summerville, Winnsboro and Furman	woblackstone.com/servicegroups
24-hour service	Offered, it says	woblackstone.com
Founding year	In business since 1937	woblackstone.com

Read on woblackstone.com on October 11, 2026 (4 pages). This is what the business says about itself.

Where you will find W O Blackstone

These are the city pages close enough for this business to appear on.

Other backflow testers nearby

Business	Services	Distance
Us Lawns Of Columbia	Backflow Testing	2 mi
Franklin Plbg & Drain Cleaning	Backflow Testing	3 mi
O'Neal PLBG. & Backflow Spec.	Backflow Testing	3 mi
Weco Rooter & Plbg	Backflow Testing	5 mi
Potts Plumbing Company	Backflow Testing	5 mi
Cool Care, Inc	Backflow Testing	5 mi

Questions about W O Blackstone

Is W O Blackstone licensed?

Yes. South Carolina records showed an active certificate (#140200127) when we last checked in Oct 2026. Ask to see it before work starts, since a certificate can lapse between checks.

What does W O Blackstone do?

Their listing covers backflow testing. Call to confirm the service you need, because offerings change.

What areas does W O Blackstone serve?

They are based in Columbia, South Carolina, within driving distance of Columbia, West Columbia, Lexington, Irmo, Blythewood. Its website names Aiken, Charleston, Columbia, Florence, Greenville and Orangeburg and 6 more places as areas it serves (read October 11, 2026).

How do I reach W O Blackstone?

Call (803) 360-1797. Their website is linked on this page.

Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.

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