Is Calvin Construction LLC licensed for septic work in North Carolina?

Calvin Construction LLC appears on NC OWCICB's records under Grade Level II 14388, as published August 21, 2026. Licences can lapse between publications, so confirm it is current before hiring.

What is Calvin Construction LLC licensed to do?

The grade on this record is Grade Level II, which permits the holder to install single and multiple tank conventional gravity systems and grease traps — but not pumped, low-pressure, drip dispersal or pretreatment systems, which need Grade Level IV.

How do I verify Calvin Construction LLC's licence myself?

Check with the certification board, or your county environmental health office, quoting 14388. Nothing on this page comes from the company, and we do not verify anyone ourselves — we republish the state record and name it.

Calvin Construction LLC

InstallerListed as based outside North Carolina

Call (540) 539-2340

The state record

Name as listed: CALVIN CONSTRUCTION LLC
Phone as listed: (540) 539-2340
Licence number: 14388
Licence class: Grade Level II
City: Winchester
County of record: Out of state
Licensed since: August 25, 2025
Record published: August 21, 2026
Licensing agency: North Carolina Onsite Wastewater Contractor and Inspector Certification Board

What this licence covers

Certified to install single and multiple tank conventional gravity systems and grease traps — but not pumped, low-pressure, drip dispersal or pretreatment systems, which need Grade Level IV: The grade on this record is Grade Level II, which permits the holder to install single and multiple tank conventional gravity systems and grease traps — but not pumped, low-pressure, drip dispersal or pretreatment systems, which need Grade Level IV.

What this listing does and does not tell you

Calvin Construction LLC appears on North Carolina’s septic licensing records as a certified septic installer, as published August 21, 2026. That is a statement by NC OWCICB that the licence was held when the record was compiled.

The record puts the first certification at August 25, 2025 — 1 year ago. Longevity is not a measure of quality, but it is a fact the state publishes and it is hard to fake.

It is not a rating, a review, an endorsement or a guarantee of insurance, price or workmanship — and licences lapse. Nothing on this page comes from the company itself, and no company pays to be here.

To confirm the licence is current today, check with the certification board, or your county environmental health office. Step by step →

Questions about Calvin Construction LLC

Is Calvin Construction LLC licensed for septic work in North Carolina?: Calvin Construction LLC appears on NC OWCICB's records under Grade Level II 14388, as published August 21, 2026. Licences can lapse between publications, so confirm it is current before hiring.
What is Calvin Construction LLC licensed to do?: The grade on this record is Grade Level II, which permits the holder to install single and multiple tank conventional gravity systems and grease traps — but not pumped, low-pressure, drip dispersal or pretreatment systems, which need Grade Level IV.
How do I verify Calvin Construction LLC's licence myself?: Check with the certification board, or your county environmental health office, quoting 14388. Nothing on this page comes from the company, and we do not verify anyone ourselves — we republish the state record and name it.