Home services in New York are a building business before they are a house business. Most jobs happen inside walk-up rentals, co-ops, condos and outer-borough two-families, and the person who calls is often a super, a managing agent or a landlord instead of the resident.
Heat season in older buildings runs from October into May, which keeps boiler and plumbing work busy in winter. Window-unit and ductless cooling jobs stack up when the first heat wave hits.
NYC Department of Buildings, NYC DCWP (former DCA) and state licenses, plus DOB permits for work that needs them, are part of how a board or manager decides whether to call you.
Access matters too: alternate-side parking, loading rules and elevator reservations shape how many jobs a van can finish in a day. New Jersey is its own market, with different towns, different permits and a tunnel between it and Manhattan.