What was permitted
Homeowners on Manhattan's Upper West Side can gauge the cost of HVAC upgrades with this permit. The work at 411 West End Avenue involved installing through-wall HVAC units according to approved plans.
Issued on July 29, 2026, this project had an estimated cost of $10,000. HAMILTON AIR COMPANY, INC (GC) was the contractor responsible for this HVAC installation.
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