COMPANY RECORD · NEW YORK, NY
Denko Mechanical Inc — permit history in New York, NY
Denko Mechanical Inc appears on 207 New York permit records from 2019 through 2026, most often fire protection (84.6% of the record).
Licences on record
| Number as published by the authority | Permits filed under it |
|---|---|
| 000130 | 233 |
| 000723 | 8 |
A contractor commonly holds several licences, one per class of work, so more than one number is normal. The number is reproduced as New York published it. A licence appearing on a permit does not prove it is current: check status and expiry with the issuing authority before acting.
Business record held by the regulator
| Name as registered | DENKO MECHANICAL INC |
|---|---|
| Business address on file | 37-20 30TH STREET LONG ISLAND CITY NY 11101 |
| Business phone on file | (718) 786-7200 |
| Licence number | 900 |
| Licence type | FIRE SUPPRESSION CONTRACTOR |
| Status in the register | SURRENDERED |
Read from DOB License Info, published by the NYC Department of Buildings; our copy is from 2026-10-31. The name, address and phone are those the company filed with the regulator, reproduced as published. A permit shows the licence was on file the day it was filed. These rows show what the regulator holds now. The record is matched to Denko Mechanical Inc by company name, and only where that name resolves to exactly one licence in the register — a rule measured at 99.4% correct against permits whose licence number we already know. Verify with the authority before acting on it.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Fire protection | 204 | 84.6% |
| Plumbing | 37 | 15.4% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2019 | 5 |
| 2020 | 47 |
| 2021 | 22 |
| 2022 | 22 |
| 2023 | 52 |
| 2024 | 30 |
| 2025 | 28 |
| 2026 | 35 |
Busiest year on record: 2023, with 52 permits. One project can account for several filings, so read this as filing activity rather than workload.
PROJECTS AHEAD SEARCH
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This page is a snapshot of Denko Mechanical Inc. The search behind it holds more than 352,308 New York permits naming a contractor, since 2019: 151,351 building permits, 117,270 plumbing permits, 72,431 mechanical (HVAC) permits, 43,000 fire protection permits.
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Named on the same permit
| Name in source | Linked permits | Last seen |
|---|---|---|
| Precision Building & Cons | 7 | 2024-05-24 |
| Wolf Construction Corp 20 | 5 | 2026-04-10 |
| Brennan Operating Inc | 4 | 2026-05-28 |
| Icon Interiors Inc | 3 | 2026-06-11 |
| Finaly Genl Contr Corp | 3 | 2026-09-23 |
| Attri Enterprises Inc | 2 | 2026-02-23 |
| The Cloone Group Inc | 2 | 2026-01-08 |
| Vanguard Construction And | 2 | 2024-03-27 |
| Summit Interiors, Inc | 2 | 2026-09-28 |
| Rinnovo Construction, LLC | 2 | 2023-12-12 |
| Oliveira Contracting Inc | 1 | 2023-08-24 |
| Concept Construction Serv | 1 | 2026-06-23 |
18 companies are named alongside Denko Mechanical Inc on the same New York permit. A shared permit is a documented co-appearance, not proof of a current contract. Names appear as the authority published them.
Where they worked
| Address in source | Most recent permit |
|---|---|
| 60 EAST 42 STREET | 2026-10-05 |
| 461 5 AVENUE | 2026-10-01 |
| 200 VESEY STREET | 2026-09-29 |
| 401 9 AVENUE | 2026-09-28 |
| 1180 AVENUE OF THE AMERICAS | 2026-09-23 |
| 40 WEST 57 STREET | 2026-09-08 |
| 1133 6 AVENUE | 2026-08-07 |
| 110 GREENE STREET | 2026-08-05 |
| 501 7 AVENUE | 2026-08-05 |
| 280 PARK AVENUE | 2026-06-25 |
| 360 PARK AVENUE SOUTH | 2026-06-23 |
| 520 FIFTH AVENUE | 2026-06-11 |
| 200 LIBERTY STREET | 2026-06-01 |
| 400 LAFAYETTE STREET | 2026-05-28 |
105 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $499,999, median $35,000. 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
| Company | Shared addresses | Years |
|---|---|---|
| A&A Plumbing Corp | 21 | 2020–2026 |
| Par Plumbing Co., Inc | 14 | 2019–2026 |
| Psi Partners, LLC | 7 | 2020–2026 |
| Par Fire Protection LLC | 7 | 2020–2026 |
| Sirina Fire Prot Corp | 7 | 2019–2026 |
| Icon Interiors Inc | 6 | 2019–2026 |
| Structure Tone, LLC | 6 | 2019–2026 |
| Aggressive Fire Prot LLC | 6 | 2020–2026 |
Companies that also appear in New York permit records at addresses where Denko Mechanical Inc 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
207 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| M01435960-I1-EW-SP | 2026-10-05 | Fire protection | 60 EAST 42 STREET | SPRINKLER WORK TAKING PLACE ON THE 52ND FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY | $26,001 |
| M01436892-S2-EW-SP | 2026-10-01 | Fire protection | 461 5 AVENUE | Sprinkler head changes as indicated on plans. | $48,500 |
| M01424262-S3-EW-SP | 2026-09-29 | Fire protection | 200 VESEY STREET | Sprinkler work as shown on plans filed herewith. | $0 |
| M01427490-S3-EW-SP | 2026-09-28 | Fire protection | 401 9 AVENUE | Sprinkler work as shown on plans filed herewith. | $15,000 |
| M01440018-S3-EW-SP | 2026-09-23 | Fire protection | 1180 AVENUE OF THE AMERICAS | SPRINKLER MODIFICATIONS TAKING PLACE ON THE 11TH FLOOR AS PER DRAWINGS FILED HEREWITH. NO CHANGE IN USE, EGRESS OR OCCUPANCY. | $20,082 |
| M01442989-S3-EW-SP | 2026-09-08 | Fire protection | 40 WEST 57 STREET | SPRINKLER WORK AS PER THE PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS OR OCCUPANCY. | $76,800 |
| M01425717-I1-EW-SP | 2026-08-07 | Fire protection | 1133 6 AVENUE | HEREWITH FILING FOR MODIFICATIONS TO THE EXISTING SPRINKLER SYSTEM ON THE 29TH FLOOR AS PER PLANS. NO CHANGE TO USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION | $4,250 |
| M01413737-I1-EW-SP | 2026-08-05 | Fire protection | 110 GREENE STREET | Modifications to the existing sprinkler system on the 8th Floor (Avoro Capital) as per plans. No change to use, egress or occupancy. | $39,984 |
| M01435145-S1-EW-SP | 2026-08-05 | Fire protection | 501 7 AVENUE | Sprinkler modifications to floor 1 as per plans filed herewith. No change in use, egress, or occupancy. | $8,498 |
| M01419154-I1-EW-SP | 2026-07-14 | Fire protection | 60 EAST 42 STREET | SPRINKLER WORK TAKING PLACE ON THE 15TH FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $5,100 |
| M01399155-I1-EW-SP | 2026-07-07 | Fire protection | 60 EAST 42 STREET | SPRINKLER WORK TAKING PLACE ON THE 25TH FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $7,500 |
| M01403736-I1-EW-SP | 2026-06-25 | Fire protection | 280 PARK AVENUE | additions/Modification to existing Sprinkler system as per plans filed herewith. No change in use, egress or occupancy under this application. | $9,400 |
| M01404632-S3-EW-SP | 2026-06-23 | Fire protection | 360 PARK AVENUE SOUTH | Modification/addition to sprinkler system and related piping as shown on drawings. No change in use, egress or occupancy. | $80,000 |
| M01378092-S3-EW-SP | 2026-06-11 | Plumbing | 520 FIFTH AVENUE | Modification to existing Sprinkler system and plumbing fixtures as per plans filed herewith. No change in use, egress or occupancy under this application. | $40,000 |
| M01378092-S3-EW-SP | 2026-06-11 | Fire protection | 520 FIFTH AVENUE | Modification to existing Sprinkler system and plumbing fixtures as per plans filed herewith. No change in use, egress or occupancy under this application. | $40,000 |
| M01389887-S3-EW-SP | 2026-06-01 | Fire protection | 200 LIBERTY STREET | Sprinkler work as shown on plans filed herewith. | $100,000 |
| M01372678-S2-EW-SP | 2026-05-28 | Fire protection | 400 LAFAYETTE STREET | Modifications to the existing Plumbing and Sprinkler systems as per plans submitted herewith. No Change to Use, Occupancy, or Egress. | $260,000 |
| M01372678-S2-EW-SP | 2026-05-28 | Plumbing | 400 LAFAYETTE STREET | Modifications to the existing Plumbing and Sprinkler systems as per plans submitted herewith. No Change to Use, Occupancy, or Egress. | $260,000 |
| B01364982-S3-EW-SP | 2026-05-08 | Fire protection | 25 KENT AVENUE | Hereby filing to remove and install sprinkler heads with related piping as shown on plans filed herewith. No change to use, occupancy or egress. | $53,600 |
| M01225366-I1-PL | 2026-04-17 | Plumbing | 350 FIFTH AVENUE | Plumbing modifications taking place on the 71st Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $15,000 |
| M01225373-I1-EW-SP | 2026-04-17 | Fire protection | 350 FIFTH AVENUE | Sprinkler modifications taking place on the 71st Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $20,000 |
| M01357828-I1-EW-SP | 2026-04-10 | Fire protection | 350 FIFTH AVENUE | Sprinkler modifications taking place on the 39th Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $30,000 |
| M01355978-I1-EW-SP | 2026-04-10 | Fire protection | 350 FIFTH AVENUE | Sprinkler modifications taking place on the 40th Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $145,000 |
| M01336775-S6-EW-SP | 2026-04-10 | Fire protection | 200 LIBERTY STREET | Sprinkler work as shown on plans filed herewith for BPCA space. No change to use, egress or occupancy. | $27,999 |
| M01371743-S3-EW-SP | 2026-04-10 | Fire protection | 555 MADISON AVENUE | Sprinkler modifications taking place on the 14th floor as per plans filed herewith. No change in use, egress or occupancy. | $19,998 |
| M01363703-S3-EW-SP | 2026-03-23 | Fire protection | 501 7 AVENUE | Sprinkler modifications to floors 9 and 10 as per plans filed herewith. No change in use, egress, or occupancy. | $34,836 |
| M01322743-I1-EW-SP | 2026-03-17 | Fire protection | 717 FIFTH AVENUE | SPRINKLER MODIFICATIONS TAKING PLACE ON THE 13TH AND 14TH FLOOR ( 12A AND 13TH FLOOR MARKETING) AS PER DRAWINGS FILED HEREWITH. NO CHANGE IN USE, EGRESS OR OCCUPANCY. | $55,000 |
| B01162466-S2-EW-SP | 2026-02-23 | Fire protection | 222 1 STREET | Modification of plumbing fixtures and sprinkler system as related to office renovation on 1st and 2nd floors of MAIN ADMINISTRATIVE BUILDING. No change in use, egress, or occupancy | $300,949 |
| B01162466-S2-EW-SP | 2026-02-23 | Plumbing | 222 1 STREET | Modification of plumbing fixtures and sprinkler system as related to office renovation on 1st and 2nd floors of MAIN ADMINISTRATIVE BUILDING. No change in use, egress, or occupancy | $300,949 |
| M01326773-S3-EW-SP | 2026-02-09 | Fire protection | ONE BRYANT PARK | SPRINKLER WORK ON ASSOCIATED PIPING AS SHOWN ON PLANS FILED HEREWTIH | $55,347 |
| M01252492-I1-EW-SP | 2026-02-09 | Fire protection | 350 FIFTH AVENUE | Sprinkler modifications taking place on the 38th Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $20,000 |
| M01336205-S3-EW-SP | 2026-02-04 | Fire protection | 200 LIBERTY STREET | Sprinkler work as shown on plans filed herewith. | $30,000 |
| M00678537-I1-EW-SP | 2026-01-20 | Fire protection | 515 WEST 20 STREET | Filing herewith Sprinkler work for the renovation of the sixth floor. No change to use, egress, or occupancy. | $109,278 |
| Q01324216-S2-EW-SP | 2026-01-08 | Fire protection | 107-30 71 ROAD | Filing to modify Plumbing and Sprinkler systems at 2nd floor as per plans. | $50,100 |
| Q01324216-S2-EW-SP | 2026-01-08 | Plumbing | 107-30 71 ROAD | Filing to modify Plumbing and Sprinkler systems at 2nd floor as per plans. | $50,100 |
| M01320778-S2-EW-SP | 2025-12-29 | Fire protection | 461 5 AVENUE | Sprinkler head changes as indicated on plans. | $47,000 |
| M01317492-I1-EW-SP | 2025-12-16 | Fire protection | 485 LEXINGTON AVENUE | Modifications to the existing sprinkler system on the 3rd floor (Berkowitz Pollack) as per plans. No change to use, egress or occupancy. | $20,000 |
| M01213511-S2-EW-SP | 2025-12-16 | Fire protection | 461 5 AVENUE | Sprinkler & Temp Loop changes as indicated on plans. | $24,999 |
| M01269675-I1-EW-SP | 2025-10-31 | Fire protection | 60 EAST 42 STREET | SPRINKLER MODIFICATIONS TAKING PLACE ON THE 52ND FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $7,000 |
| M01282561-S2-EW-SP | 2025-10-14 | Fire protection | 885 THIRD AVENUE | Sprinkler head changes as indicated on plans. | $19,025 |
| M01274706-I1-PL | 2025-10-14 | Plumbing | 498 SEVENTH AVENUE | PLUMBING - Installation of New Domestic Cold water line, connected to existing, for new coffee maker and water dispenser SPRINKLER - Removal of 64 old Sprinkler heads and the insta | $52,983 |
| M01274706-I1-EW-SP | 2025-10-14 | Plumbing | 498 SEVENTH AVENUE | PLUMBING - Installation of New Domestic Cold water line, connected to existing, for new coffee maker and water dispenser SPRINKLER - Removal of 64 old Sprinkler heads and the insta | $52,983 |
| M01274706-I1-EW-SP | 2025-10-14 | Fire protection | 498 SEVENTH AVENUE | PLUMBING - Installation of New Domestic Cold water line, connected to existing, for new coffee maker and water dispenser SPRINKLER - Removal of 64 old Sprinkler heads and the insta | $52,983 |
| M01274706-I1-PL | 2025-10-14 | Fire protection | 498 SEVENTH AVENUE | PLUMBING - Installation of New Domestic Cold water line, connected to existing, for new coffee maker and water dispenser SPRINKLER - Removal of 64 old Sprinkler heads and the insta | $52,983 |
| M01163004-I1-EW-SP | 2025-09-29 | Fire protection | 60 EAST 42 STREET | Sprinkler modifications taking place on the 10th Floor as per plans filed herewith. No change in Use, Egress or Occupancy. | $26,000 |
| M01208733-I1-EW-SP | 2025-09-26 | Fire protection | 350 FIFTH AVENUE | SPRINKLER MODIFICATIONS TAKING PLACE ON 24TH FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $55,043 |
| M01256776-I1-EW-SP | 2025-09-24 | Fire protection | 810 SEVENTH AVENUE | Modifications to the existing sprinkler system on the 34th floor (Suite 3400) as per plans. No change to use, egress or occupancy. | $7,500 |
| M01269796-I1-EW-SP | 2025-09-19 | Fire protection | 60 EAST 42 STREET | SPRINKLER MODIFICATIONS TAKING PLACE ON THE 11TH FLOOR AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $8,200 |
| M01271358-I1-EW-SP | 2025-09-12 | Fire protection | 350 FIFTH AVENUE | SPRINKLER MODIFICATIONS TO THE 62ND AND 63RD FLOOR AS PLANS FILED HEREWITH.NO CHANGE IN USE, EGRESS, OR OCCUPANCY. | $6,600 |
| M01224445-S3-EW-SP | 2025-08-25 | Fire protection | 799 BROADWAY | Sprinkler modifications taking place on the 7th floor as indicated on the drawings. | $20,000 |
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.
Source and limits
Public New York 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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