Dorff Const.
Dorff Const. is a diversified New York City contractor — 35 segment-eligible permits spanning 4 segments, led by commercial hvac (57%) and multifamily alteration (37%). Its permit record in New York City spans 1990–2001.
- Market
- New York City
- Active
- 1990–2001 · 11 yrs
- Licence IDs on their permits
- 2
- Reliable value
- —
- Coverage
- —
- Reliable filings
- —
- Rank in New York City
- #9,420
- Permits (all-time, all segments)
- 74
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- Jul 19, 2001
- 0004586
- 0009090
As named in the permit records — identifiers we surface, not verified state licensure.
Dorff Const. has 74 permits, but too few carry a value we can stand behind — so we publish — for reliable value, never a guess. They still rank by volume; the dollar figure stays honest.
Typical service area ~4 mi in New York City
The p90 footprint of where Dorff Const. has pulled permits in New York City — drawn from all 74 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- NYC74
Showing 20 of 35 permits by Dorff Const. in the indexed window · most recent first
- Jul 19, 2001Multifamily Alteration1 East 66 Street, Manhattan, NY 10065——
- May 9, 2001Multifamily Alteration825 3 Avenue, Manhattan, NY 10022——
- Apr 9, 2001Multifamily Alteration31 West 15 Street, Manhattan, NY 10011——applied Apr 6, 2001
- Dec 8, 2000Multifamily Alteration825 3 Avenue, Manhattan, NY 10022——
- Dec 8, 2000Multifamily Alteration825 3 Avenue, Manhattan, NY 10022——
- Dec 1, 2000Commercial HVAC780 3 Avenue, Manhattan, NY 10017HVAC / Mechanical—
- Mar 2, 2000Commercial HVAC114 5 Avenue, Manhattan, NY 10011HVAC / Mechanical—
- —Commercial HVAC375 Park Avenue, Manhattan, NY 10022HVAC / Mechanical—
- —Commercial HVAC1675 Broadway, Manhattan, NY 10019HVAC / Mechanical—
- —Commercial HVAC90 Park Avenue, Manhattan, NY 10016HVAC / Mechanical—
- —Commercial HVAC90 Park Avenue, Manhattan, NY 10016HVAC / Mechanical—
- —Commercial HVAC90 Park Avenue, Manhattan, NY 10016HVAC / Mechanical—
- —Commercial HVAC80 Pine Street, Manhattan, NY 10005HVAC / Mechanical—
- —Multifamily Alteration82 Washington Street, Manhattan, NY 10006HVAC / Mechanical—
- —Multifamily Alteration82 Washington Street, Manhattan, NY 10006——
- —Commercial HVAC733 3 Avenue, Manhattan, NY 10017HVAC / Mechanical—
- —Commercial HVAC777 3 Avenue, Manhattan, NY 10017HVAC / Mechanical—
- —Multifamily Alteration111 Fulton Street, Manhattan, NY 10038——
- —Commercial HVAC733 3 Avenue, Manhattan, NY 10017HVAC / Mechanical—
- —Commercial HVAC180 Maiden Lane, Manhattan, NY 10005HVAC / Mechanical—
Addresses where Dorff Const. has pulled repeat permits and the site itself has a deep permit history (25+ permits, all contractors). Each links to that parcel’s full record.
- Structure Tone INC7,244 commercial hvac
- Jt Magen + CO INC2,150 commercial hvac
- Turner Construction Compa1,890 commercial hvac
- Lehr Construction CORP1,767 commercial hvac
- John Gallin & Son, INC1,604 commercial hvac
- Jrm Construction Mgmt LLC1,406 commercial hvac
Put Dorff Const. on your call list.
Watch this contractor above for a daily email when they pull a new permit — or open the whole New York City book: every ranked contractor, enriched and parcel-joined.