OWNER RESEARCH LIBRARY
Check the record. Define the work. Ask better questions.
Source-backed guides for checking a contractor and insurance, reading permits, comparing renovation scopes, and planning brownstone and masonry work in New York City.
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Four checks before an NYC construction contract
RESEARCH PATH
Check a contractor
Match a company identity across licenses, entity records, permits, coverage, and the contract in front of you.
Vet a NYC facade contractor by matching identity, license status, permit history, insurance records, project evidence, and the written scope.
Focused guide · 11 sourcesNYC DOB License Search & DCWP Contractor LookupFind the official DOB and DCWP license searches. Follow the lookup steps, match the contractor name and number, and check license status, expiry and records.
Focused guide · 8 sourcesCheck NYC Contractor Insurance, Workers’ Comp, and COICheck an NYC contractor’s general liability, workers’ compensation, disability coverage, COI, named insured, dates, limits, and project-specific requirements.
Focused guide · 4 sourcesWhat an expired NYC home improvement license meansAn expired NYC HIC record is a dated licensing fact, not a workmanship rating. Learn what to verify before residential repair work begins.
Focused guide · 10 sourcesHow to match a NYC contractor to public recordsMatch the contractor on a NYC proposal to the correct DCWP, DOS, and DOB records before you sign, pay a deposit, or approve permit work.
Focused guide · 10 sourcesNot found vs unavailable in NYC public recordsLearn what an empty or failed NYC contractor-record search means, what it does not prove, and what a homeowner should do before signing.
RESEARCH PATH
Read permits and public records
Understand what DOB, BIS, LPC, and address records can establish—and where their limits begin.
Use DOB NOW, BIS, LPC, DCWP, and address identifiers to research NYC facade work without treating a filing as proof of quality or completion.
Focused guide · 8 sourcesNYC DOB permit status: issued, expired or signed-offRead NYC DOB permit status in DOB NOW and BIS. Compare Permit Issued, Signed-off and expiration dates, then verify the contractor, scope and building.
Complete guide · 8 sourcesStaten Island Historic Home Exterior Work: LPC ChecklistCheck Staten Island historic-district status and plan exterior work by material, protected features, LPC path, DOB scope, and contractor evidence.
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Plan and compare the work
Turn a building problem into a comparable scope, quote, approval plan, and documented next step.
Compare NYC facade quotes by scope, quantities, materials, access, permits, exclusions, schedule, payment terms, and documented project evidence.
Focused guide · 6 sourcesBefore Waterproofing NYC Masonry: Find the Water PathHow to investigate a leak in a NYC masonry facade before buying a coating: map symptoms, test likely entry points, check historic materials and approvals, and write a repair scope.
Focused guide · 6 sourcesWhat a NYC facade repair scope should includeA useful NYC facade repair scope defines conditions, locations, quantities, materials, access, protection, permits, testing, closeout, and exclusions.
Complete guide · 8 sourcesManhattan Prewar Facade Repair: FISP, Landmarks, and ScopePlan a Manhattan prewar facade project by separating FISP inspection, repair design, LPC review, access, masonry scope, and contractor evidence.
Complete guide · 8 sourcesBronx Apartment Parapet and Facade Repair: Owner GuidePlan parapet and facade work on Bronx apartment buildings: annual observations, FISP overlap, brick, concrete, steel, water paths, and contractor scope.
Complete guide · 8 sourcesNYC Gut Renovation: Permits and Contractor ChecklistPlan an NYC gut renovation with a permit, design, lead-safety, contractor, bid, payment, change-order, and closeout checklist based on official guidance.
Complete guide · 7 sourcesNYC Parapet Repair: Inspection, Permits, and ScopeUnderstand NYC parapet observation and repair: annual rule, urgent hazards, condition mapping, permits, FISP and LPC overlap, scope, bids, and closeout.
RESEARCH PATH
Historic masonry and repointing
Use preservation guidance and local records to define compatible masonry work before choosing a contractor.
Plan brick facade work in Queens by distinguishing Ridgewood rows, garden apartments, detached homes, parapets, wall assemblies, and approval paths.
Complete guide · 5 sourcesBrick repointing for NYC historic buildingsPlan historic brick repointing by diagnosing failed joints, matching compatible mortar, defining removal and finish, and checking NYC approvals.
RESEARCH PATH
Brownstone restoration
Diagnose deterioration, choose the least extensive compatible repair, and define approvals, mockups, budget drivers, and contractor evidence.
Define Brooklyn brownstone and rowhouse masonry work by facade material, failure mechanism, repair method, LPC status, mockup, and contractor evidence.
Focused guide · 7 sourcesBrooklyn Rowhouse Cornice Repair: Keep, Replace, or Recreate?A practical Brooklyn rowhouse cornice guide: diagnose metal and wood deterioration, distinguish repair from replacement, check DOB and LPC requirements, and compare bids.
Complete guide · 10 sourcesBrownstone Facade Restoration in New York CityPlan a NYC brownstone facade restoration around documented conditions, compatible repairs, approvals, mockups, budget drivers, and verified records.
Complete guide · 8 sourcesNYC Brownstone Stoop Restoration: Owner ChecklistEvaluate an NYC brownstone stoop restoration scope: conditions, repair method, railings, drainage, DOB and LPC approvals, mockups, bids, and closeout.
Focused guide · 4 sourcesWhy Brownstone Facades Deteriorate in NYCSee how water, salts, freeze-thaw cycles, bedding planes, movement, corrosion, and incompatible repairs damage NYC brownstone facades over time.
Focused guide · 5 sourcesBrownstone Patching vs Resurfacing vs RebuildingCompare brownstone patching, resurfacing, stone replacement, and rebuilding by condition, scope, mockups, budget drivers, risks, and NYC approvals.