Contractor Profile

Kay Waterproofing CORP

Kay Waterproofing CORP concentrates in multifamily alteration in New York City (82% of its 1,073 segment-eligible permits), with secondary activity across 2 other segments. Its permit record in New York City spans 1993–2026. Reliable permit valuations total ≈$43.7M (across the 25% of filings with a valuation we can stand behind). Filing activity is steady over the last 90 days versus the prior 90.

First permit: Apr 7, 1993 (12,244d ago)Latest permit: Jul 30, 2026 (77d ago)
The sales record
Market
New York City
Active
1993–2026 · 33 yrs
Licence IDs on their permits
5
Reliable value
$43.7M
Coverage
25%
Reliable filings
197
Rank in New York City
#463
Permits (all-time, all segments)
1,290
Filings 90d
21
Filings 30d
6
Latest permit
Jul 30, 2026
Typical project size$105Ktypically $13K–$223K across 197 valued permits
Where they work
Firmographics
License & registration IDs on file
  • 0002656
  • 002656
  • 004648
  • 005727
  • 624230

As named in the permit records — identifiers we surface, not verified state licensure.

Direct contactNot in our data — we don’t fabricate firmographics.
Monthly activity
Oct ’240–14 permits/moOct ’26
permits per month permit value
Service area

Typical service area ~7 mi in New York City

The p90 footprint of where Kay Waterproofing CORP has pulled permits in New York City — drawn from all 1,308 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.

  • NYC1,308
Find Multifamily Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.

Showing 20 of 1,073 permits by Kay Waterproofing CORP in the indexed window · most recent first

Sort
Oct 5, 2026
100 Haven Avenue, Manhattan, NY 10032
Temporary Construction Support
—
Oct 5, 2026
102 Haven Avenue, Manhattan, NY 10032
Temporary Construction Support
—
Oct 5, 2026
78 Haven Avenue, Manhattan, NY 10032
Temporary Construction Support
—
Sep 21, 2026
2116 Dorchester Road, Brooklyn, NY 11226
Multifamily Alteration
$50K
Sep 21, 2026
2116 Dorchester Road, Brooklyn, NY 11226
Multifamily Alteration
$50K
Sep 14, 2026
74 2 Place, Brooklyn, NY 11231
Temporary Construction Support
$1K
Sep 10, 2026
1950 Andrews Avenue South, Bronx, NY 10453
Multifamily Alteration
$207K
Sep 10, 2026
1430 Broadway, Manhattan, NY 10018
Temporary Construction Support
—
Sep 3, 2026
74 Second Place, Brooklyn, NY 11231
Multifamily Alteration
$60K
Sep 3, 2026
74 Second Place, Brooklyn, NY 11231
Multifamily Alteration
$60K
Sep 3, 2026
40 Haven Avenue, Manhattan, NY 10032
Commercial Alteration
$2.0M
Aug 25, 2026
285 Riverside Drive, Manhattan, NY 10025
Temporary Construction Support
—
Aug 13, 2026
96-05 Horace Harding Expressway, Queens, NY 11368
Temporary Construction Support
Industrial
—
Aug 10, 2026
10 Jay Street, Manhattan, NY 10013
Temporary Construction Support
—
Aug 7, 2026
341 Eastern Parkway, Brooklyn, NY 11216
Temporary Construction Support
Industrial
—
Aug 7, 2026
305 East 40 Street, Manhattan, NY 10016
Multifamily Alteration
$150K
Aug 6, 2026
40 West 55 Street, Manhattan, NY 10019
Temporary Construction Support
—
Aug 5, 2026
114 West 27 Street, Manhattan, NY 10001
Temporary Construction Support
—
Jul 30, 2026
114 West 27 Street, Manhattan, NY 10001
Multifamily Alteration
$80K
Jul 27, 2026
341 Eastern Parkway, Brooklyn, NY 11216
Temporary Construction Support
—
Sites Kay Waterproofing CORP returns to6 in New York City

Addresses where Kay Waterproofing CORP 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.

Other top Multifamily Alteration contractors in New York City
See the full New York City Multifamily Alteration leaderboard →

Put Kay Waterproofing CORP 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.