How many plumbing contractors are in Ontonagon, MI?

4 with a current Michigan license, as of 2026-08-31.

How do I check a Michigan contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the Michigan LARA licensee database.

Plumbing contractors in Ontonagon, MI

4 listings

Source: Michigan LARA license records. Last verified 2026-08-31.

There are 4 plumbing contractors in Ontonagon, Michigan with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-12-31; every listing shows its own number and expiry date. All are drawn from the Michigan LARA register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
HEGG PLUMBING & HEATING INC	314627	Boiler Installer	2026-12-31	Ontonagon	49953	Set up workspace
HEGG PLUMBING & HEATING INC	8000438	Plumbing Contractor	2028-04-30	Ontonagon	49953	Set up workspace
HEGG PLUMBING & HTG INC	7109761	Mechanical Contractor	2028-08-31	Ontonagon	49953	Set up workspace
RONS PLBG & HTG	8003803	Plumbing Contractor	2028-04-30	Ontonagon	49953	Set up workspace

Quick answers

How many plumbing contractors are in Ontonagon?: 4 with a current Michigan license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the Michigan LARA licensee database.