Cornerstone Mechanical In
Cornerstone Mechanical In filed 9 permits with the NYC Department of Buildings in the last two years under DOB-registered contractor #619224, most recently on Jun 3, 2026. It worked most often in West Village (4), Park Slope (2), Crown Heights (1), Laurelton (1).
What do public records show for Cornerstone Mechanical In?
| License | DOB-registered contractor #619224 Issued by the NYC Department of Buildings |
|---|---|
| DOB permits filed (last 2 years) | 9 |
| Permits in the last 12 months | 4 |
| Most recent permit | Jun 3, 2026 |
| Boroughs worked in | Manhattan (5), Brooklyn (3), Queens (1) |
| Permits for homes and apartments | 11% From permit job descriptions |
| Permits mentioning mini-splits or ductless systems | 1 |
Where does Cornerstone Mechanical In work?
How do I verify this license?
Ask whether the job needs a DOB permit, who will file it, and for the technician's EPA 608 card. Every firm we list filed DOB mechanical-systems permits in the last two years.
DOB NOW Public Portal (permit and contractor search)
Source: DOB NOW: Build mechanical-systems permits, as of November 4, 2026. Expert Helper is not affiliated with this business, and a listing is not an endorsement. Is this your business? Request a correction or claim it.