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Contractor
EXPERT MAINTENANCE CORP
General Contractor
3 projects with open permitsBROOKLYN · 7STATEN ISLAND · 7
9 of 11 buildings mapped
12
Total Filings
14
Projects on File
3
Buildings Worked
3
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month14 projects all-time
0123Sep '10 · 1May '11 · 1Jun '13 · 1Dec '15 · 1Sep '16 · 1Jul '17 · 1Dec '20 · 2Mar '21 · 1May '21 · 1Oct '21 · 1Jan '23 · 2Feb '23 · 12011201220132014201520162017201820192020202120222023
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit321%
Signed off214%
Other status964%
By project type
Alteration4
Alteration CO1
Most active buildings
All buildings →
5501 1 AVENUEBROOKLYN · 2 open · latest 11/07/2025
3 projects
156 JEROME ROADSTATEN ISLAND · 1 open · latest 05/19/2025
2 projects
4312 2 AVENUEBROOKLYN · latest 05/12/2014
1 projects
5801 2 AVENUEBROOKLYN · latest 05/31/2011
1 projects
419 7 AVENUEBROOKLYN · latest 05/12/2017
1 projects
5434 2 AVENUEBROOKLYN · latest 05/02/2016
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00506094 ↗5501 1 AVENUE
BROOKLYN
AlterationPermit Issued10/08/202111/07/2025Concrete Facade & Parapet Repairs. No Change in egress, occupancy or use.
S00818158 ↗156 JEROME ROAD
STATEN ISLAND
Alteration COPermit Issued02/14/202305/19/2025Propose vertical enlargement. Interior renovation with exterior restoration. New finishes and trims. Obtain certificate of occupancy for two…
S00814706 ↗156 JEROME ROAD
STATEN ISLAND
AlterationSigned-off01/25/202306/10/2024Propose temporary construction fence as per plans
520298703BIS475 CROWN AVENUE
STATEN ISLAND
—ISSUED07/20/201707/10/2023—EQ, PL
B00815913 ↗5501 1 AVENUE
BROOKLYN
AlterationPermit Issued01/26/202301/26/2023INSTALLATION OF TEMPORARY SHANTY AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
320200171BIS5501 1 AVENUE
BROOKLYN
—ISSUED09/20/201004/26/2022—OT
Counts cover all 14 projects (5 DOB NOW + 9 legacy BIS). Dated by first filing; BIS projects by first permit issuance.
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JAHMAL SABAHA PE CONSULTING ENGR203/09/2026
MICHAEL DERUVO & ASSOC. ARCHITECTS105/05/2021
PAUL PERDEK, PROF. ENG. PLLC101/26/2023
THORNTON TOMASETTI112/09/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
GOLDSTONE GENERAL CONSTR203/09/2026
BENJAMIN CONSTRUCTION COR112/09/2025
JOHN FITZGERALD PLBG &HTG103/09/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Goldstone General Construction Corp103/09/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
KMS DRAFTING CORP.103/09/2026
OUTSOURCE CONSULTANTS, INC.112/09/2025
5 DOB NOW projects + 9 legacy BIS projects, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.
All 14Open permit 3Signed off 2Other status 9
Any typeAlteration 4Alteration CO 1
14 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00506094 ↗5501 1 AVENUE
BROOKLYN
AlterationPermit Issued10/08/202111/07/2025Concrete Facade & Parapet Repairs. No Change in egress, occupancy or use.
S00818158 ↗156 JEROME ROAD
STATEN ISLAND
Alteration COPermit Issued02/14/202305/19/2025Propose vertical enlargement. Interior renovation with exterior restoration. New finishes and trims. Obtain certificate of occupancy for two…
S00814706 ↗156 JEROME ROAD
STATEN ISLAND
AlterationSigned-off01/25/202306/10/2024Propose temporary construction fence as per plans
520298703BIS475 CROWN AVENUE
STATEN ISLAND
—ISSUED07/20/201707/10/2023—EQ, PL
B00815913 ↗5501 1 AVENUE
BROOKLYN
AlterationPermit Issued01/26/202301/26/2023INSTALLATION OF TEMPORARY SHANTY AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
320200171BIS5501 1 AVENUE
BROOKLYN
—ISSUED09/20/201004/26/2022—OT
S00515531 ↗839 RENSSELAER AVENUE
STATEN ISLAND
AlterationSigned-off05/05/202110/05/2021APPLICATION FILED TO PROVIDE 2 HR RATED FIRE DIVISION AT THE CAVITY OF THE MANSARD ROOF NOT INSTALLED DURING CONSTRUCTION AT THE TIME OF THE…
540197482BIS300 FAIRBANKS AVENUE
STATEN ISLAND
—ISSUED03/31/202108/04/2021—OT
540191255BIS843 RENSSELAER AVENUE
STATEN ISLAND
—ISSUED12/09/202012/09/2020—OT
540191273BIS841 RENSSELAER AVENUE
STATEN ISLAND
—ISSUED12/09/202012/09/2020—OT
321449385BIS419 7 AVENUE
BROOKLYN
—ISSUED09/13/201605/12/2017—OT
340335444BIS5434 2 AVENUE
BROOKLYN
—ISSUED12/16/201505/02/2016—OT
340066877BIS4312 2 AVENUE
BROOKLYN
—ISSUED06/06/201305/12/2014—OT
320316190BIS5801 2 AVENUE
BROOKLYN
—ISSUED05/31/201105/31/2011—OT
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
156 JEROME ROAD ↗204/09/2026
5501 1 AVENUE ↗704/09/2026
839 RENSSELAER AVENUE ↗303/21/2026
▾Documents — 281 on file (BIS + DOB NOW)
▸Plans & Drawings15
▸DOB NOWPlans/Sketch15
08/27/2026B00815913-I1 · 5501 1 AVENUERequest digital key ↗
08/23/2026S00814706-I1 · 156 JEROME ROADRequest digital key ↗
Showing 3 of 15 on file for this type
▸Applications & Permits40
▸BISWORK PERMIT APPLICATION27
03/31/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
12/09/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
12/09/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
Showing 3 of 27 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION13
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
01/26/2021520298703 · 475 CROWN AVENUEOpen ↗
12/30/2020520298703 · 475 CROWN AVENUEOpen ↗
Showing 3 of 13 on file for this type
▸Zoning, Tax Lot & Property Records12
▸DOB NOWZD1: DOB Zoning Diagram4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸DOB NOWRestrictive Declaration/Easement 13
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 3 on file for this type
▸DOB NOWZoning Exhibit form (1-5)2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWHouse Number Verification: TOPO Stamp1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWZD1 DOB Zoning Diagram1
09/01/2026S00818158-I1 · 156 JEROME ROADOpen ↗
▸Seals & Professional Certifications72
▸DOB NOWDPL-1: Design Professional Seal & Signature15
08/27/2026B00815913-I1 · 5501 1 AVENUEOpen ↗
08/25/2026S00515531-I1 · 839 RENSSELAER AVENUEOpen ↗
08/13/2026S00814706-I1 · 156 JEROME ROADOpen ↗
Showing 3 of 15 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature13
09/19/2026S00818158-I1 · 156 JEROME ROADOpen ↗
09/19/2026S00818158-I1 · 156 JEROME ROADOpen ↗
08/31/2026S00818158-S2 · 156 JEROME ROADOpen ↗
Showing 3 of 13 on file for this type
▸DOB NOWProgress Inspector Seal & Signature12
09/19/2026S00818158-I1 · 156 JEROME ROADOpen ↗
09/19/2026S00818158-I1 · 156 JEROME ROADOpen ↗
08/31/2026S00818158-S2 · 156 JEROME ROADOpen ↗
Showing 3 of 12 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION8
11/02/2018340335444 · 5434 2 AVENUEOpen ↗
08/01/2017520298703 · 475 CROWN AVENUEOpen ↗
09/13/2016321449385 · 419 7 AVENUEOpen ↗
Showing 3 of 8 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT7
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
11/23/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
09/13/2016321449385 · 419 7 AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION5
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
11/23/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
Showing 2 of 5 on file for this type
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY5
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
11/23/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
11/23/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST4
09/13/2016321449385 · 419 7 AVENUEOpen ↗
06/03/2011320316190 · 5801 2 AVENUEOpen ↗
08/10/2010320200171 · 5501 1 AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM2
06/03/2011320316190 · 5801 2 AVENUEOpen ↗
08/10/2010320200171 · 5501 1 AVENUEOpen ↗
▸BISProfessional and Owner Certification (POC3)1
09/13/2016321449385 · 419 7 AVENUEOpen ↗
▸Trade Schedules & Equipment3
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2
08/29/2019520298703 · 475 CROWN AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISSCHEDULE B - PLUMBING1
12/30/2020520298703 · 475 CROWN AVENUEOpen ↗
▸Safety & Tenant Protection9
▸DOB NOWStreet Tree Checklist5
09/01/2026S00818158-I1 · 156 JEROME ROADOpen ↗
Showing 1 of 5 on file for this type
▸BISTenant Protection Plan and Notes2
09/13/2016321449385 · 419 7 AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISSTREET TREE CHECKLIST2
08/10/2010320200171 · 5501 1 AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸Environmental & Asbestos18
▸DOB NOWDEP ACP-5: Asbestos Assessment Report10
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 10 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)5
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
09/13/2016321449385 · 419 7 AVENUEOpen ↗
12/14/2015340335444 · 5434 2 AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER2
06/03/2011320316190 · 5801 2 AVENUEOpen ↗
08/10/2010320200171 · 5501 1 AVENUEOpen ↗
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/13/2026B00506094-I1 · 5501 1 AVENUEOpen ↗
▸Energy Compliance26
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY6
05/11/2021540191255 · 843 RENSSELAER AVENUEOpen ↗
05/07/2021540191273 · 841 RENSSELAER AVENUEOpen ↗
12/14/2015340335444 · 5434 2 AVENUEOpen ↗
Showing 3 of 6 on file for this type
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS4
11/02/2018340335444 · 5434 2 AVENUEOpen ↗
08/01/2017520298703 · 475 CROWN AVENUEOpen ↗
Showing 2 of 4 on file for this type
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS4
11/23/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
11/23/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
Showing 2 of 4 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS4
05/11/2021540191255 · 843 RENSSELAER AVENUEOpen ↗
05/10/2021540191273 · 841 RENSSELAER AVENUEOpen ↗
11/02/2018340335444 · 5434 2 AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸BISNYCECC ANALYSIS2
12/14/2015340335444 · 5434 2 AVENUEOpen ↗
06/04/2013340066877 · 4312 2 AVENUEOpen ↗
▸BISINSULATION PLACEMENT & R VALUES2
12/08/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
12/08/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
▸BISENERGY CODE COMPLIANCE INSPECTIONS2
12/08/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
12/08/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
▸BISTR8: Energy Code Progress Inspections1
12/10/2014340066877 · 4312 2 AVENUEOpen ↗
▸DOB NOWEN2: As Built Energy Analysis.1
08/13/2026S00515531-I1 · 839 RENSSELAER AVENUEOpen ↗
▸Inspections & Test Reports18
▸BISTECHNICAL REPORT: RESPONSIBILITY8
08/26/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
05/11/2021540191255 · 843 RENSSELAER AVENUEOpen ↗
05/07/2021540191273 · 841 RENSSELAER AVENUEOpen ↗
Showing 3 of 8 on file for this type
▸DOB NOWSOIL REPORT5
09/01/2026S00818158-I1 · 156 JEROME ROADOpen ↗
Showing 1 of 5 on file for this type
▸BISFIRE-RESISTIVE RATED CONSTRUCTION2
12/08/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
12/08/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)2
12/08/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
12/08/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
▸DOB NOWTR4 Test Report and Plot Diagram1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Approvals, Objections & Sign-offs18
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST7
09/03/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
05/11/2021540191255 · 843 RENSSELAER AVENUEOpen ↗
05/10/2021540191273 · 841 RENSSELAER AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸BISADMINISTRATIVE OBJECTIONS3
06/03/2011320316190 · 5801 2 AVENUEOpen ↗
Showing 1 of 3 on file for this type
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter3
08/27/2026B00815913-I1 · 5501 1 AVENUEOpen ↗
08/13/2026B00506094-I1 · 5501 1 AVENUEOpen ↗
08/13/2026B00506094-P2 · 5501 1 AVENUEOpen ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION2
08/26/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
11/24/2014340066877 · 4312 2 AVENUEOpen ↗
▸BISSCHEDULE A - OCCUPANCY / USE2
09/03/2019520298703 · 475 CROWN AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISLANDMARKS APPROVAL1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Cost, Insurance & Ownership15
▸BISCOST AFFIDAVIT14
05/11/2021540191255 · 843 RENSSELAER AVENUEOpen ↗
05/07/2021540191273 · 841 RENSSELAER AVENUEOpen ↗
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
Showing 3 of 14 on file for this type
▸BISCOST AFFIDAVIT (FINAL): PW31
08/26/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
▸Filing & Intake Forms13
▸BISEFILING JOB APPLICATION COVER SHEET5
03/06/2021540197482 · 300 FAIRBANKS AVENUEOpen ↗
Showing 1 of 5 on file for this type
▸BISEFILING COVER SHEET4
06/03/2011320316190 · 5801 2 AVENUEOpen ↗
Showing 1 of 4 on file for this type
▸BISADDITIONAL INFORMATION2
01/26/2021520298703 · 475 CROWN AVENUEOpen ↗
09/20/2019520298703 · 475 CROWN AVENUEOpen ↗
▸BISBOROUGH INTAKE FORM2
08/29/2019520298703 · 475 CROWN AVENUEOpen ↗
11/02/2018340335444 · 5434 2 AVENUEOpen ↗
▸Other Documents22
▸DOB NOWSite Survey: Initial5
09/01/2026S00818158-I1 · 156 JEROME ROADOpen ↗
Showing 1 of 5 on file for this type
▸DOB NOWPlot Diagram4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸DOB NOWProperty Ownership Certification4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸BISPRELIMINARY2
12/08/2020540191255 · 843 RENSSELAER AVENUEOpen ↗
12/08/2020540191273 · 841 RENSSELAER AVENUEOpen ↗
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1
06/06/2013340066877 · 4312 2 AVENUEOpen ↗
▸BISFEE EXEMPTION DOCUMENTATION1
12/14/2015340335444 · 5434 2 AVENUEOpen ↗
▸DOB NOWFinal Survey1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type