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Leo MackinnonLicensed

Licensed septic contractor based in Colebrook, Coos County, NH

License details

License number01149, 02898
License typeSeptic System Designer, Septic System Installer
License statusActive, NH DES Designer/Installer roster
Based inColebrook, Coos County, New Hampshire 03576

"Based in" is the city and county of the address on the business's license record.

What this license covers

  • Design: licensed to size and lay out a septic system for a specific site and soil condition.
  • Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.

How to verify this license

We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #01149, 02898 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: NH DES - Septic System Designers & Installers, last checked 2026-08-16. Verify at the official source.

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