Mulligan Heating — permit history in Detroit, MI

Permit categories

2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.

Activity by year

Busiest year on record: 2026, with 30 permits. One project can account for several filings, so read this as filing activity rather than workload.

Where they worked

16 distinct addresses on record; the 14 most recent are shown. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.

Also named on permits at the same addresses

Companies that also appear in Detroit permit records at addresses where Mulligan Heating filed, in any year. Sharing an address is a documented co-appearance, not proof that they worked on the same project or with each other.

Permits on record

Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.

Search these records

The 35 permits above are a static record through 2026. Select a year above to open that year’s records, or search Mulligan Heating in Detroit, MI by address, trade or date range.

Source and limits

Public Detroit permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →

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