We're one of the few NYC HVAC contractors that owns the metal shop. Our sister company Metal Men Mechanical cuts duct on plasma tables at 993 Grand Street, the same address as our office. When you ask if your quote is fair, we're not guessing. We know what duct costs because we make it.
Vinco Mechanical is an NYC HVAC contractor based in Brooklyn with an integrated sheet metal fabrication shop ( Metal Men Mechanical) at the same 993 Grand Street address. Founded 1987. Mitsubishi, Daikin, and Fujitsu installer. We offer free second opinions on HVAC quotes from any NYC contractor: upload yours, get a same-business-day reply from a licensed tech.
Stock ductwork from a sheet metal supply house carries a 20-30% supplier markup, plus on-site labor to cut and modify each piece to fit. The contractor passes that markup, plus the labor hours, into your line item.
Custom-fabricated ductwork is cut to spec on a plasma table from the design drawings, labeled by run, pre-sized, and delivered ready to hang. Margin is captured upstream at the fab shop, not in the field.
When you ask whether your duct line item is reasonable, the answer depends on which side of that fence the bidder lives on. We live on the fab side, so we know.
Send the quote as a PDF or photo via the form below. Add a one-line note about the project (3-zone Mitsubishi for a Brooklyn brownstone, RTU replacement on a Long Island City warehouse, whatever fits). Optional: address and zip so the tech can sanity-check the building type.
A licensed Vinco tech reads the quote (NOT AI alone — every second opinion is human-reviewed per Vinco's customer-comms policy). The tech checks sizing math, brand authorization, refrigerant choice, permits and DOB filings, ductwork stock-vs-fab, board-package items, and the seven things that hide in 'by others' lines.
You get an email back the same business day with a verdict (fair / high / low), a list of what's missing, and a fair NYC range for the work as scoped. No obligation, no upsell, no follow-up sales calls. If you'd like Vinco's number on the same scope, ask and we'll book a free estimate visit.
Pricing comparison alone won't catch a missing line item. We read every quote against this checklist and tell you what's there, what's missing, and what's reasonable for the NYC market.
Manual J load calculation should drive tonnage. A 5-ton condenser on a 1,400 sq ft brownstone is oversized; a 2-ton on a 2,800 sq ft loft is undersized. Both fail in the field — short-cycling and humidity issues for oversized, can't-keep-up calls in July for undersized. We check the math.
If the quote is a Mitsubishi install, the contractor should be a Mitsubishi certified installer, listed on the Mitsubishi Comfort dealer locator. Daikin installs the same, listed on the Daikin Comfort locator as a Daikin certified (Comfort Pro) contractor. A non-certified install can void the manufacturer compressor warranty.
Most NYC HVAC work needs a DOB filing (Alt-2 or limited alteration). 'Permits by others' on a quote means the homeowner is on the hook for filing, fees, expediter costs, and any DOB violations. The Vinco-vs-quote difference often lives here.
Stock duct from a supplier carries a 20-30% markup and needs on-site cut and modify labor. Custom-fab duct (like our sister company Metal Men Mechanical makes in-house) is labeled, pre-sized, and ready to install. The line-item delta on duct-heavy jobs is usually meaningful.
R-22 has been banned from production since 2020 (ozone program). R-410A is not banned: since January 1, 2025 new residential and light commercial equipment must be under 700 GWP, so new units ship A2L (R-454B, R-32). Federally, pre-2025 R-410A can still be installed, but New York’s NYSDEC Part 494 keeps the January 1, 2026 install ban in force, so a new R-410A install is not permitted in NYC regardless of the federal rollback (Greenberg Traurig). R-454B is the canonical refrigerant for new installs. If a quote specifies a new R-410A system, we flag it.
If the building is a co-op or condo, the install needs an alteration agreement, a COI naming the building as additional insured, an engineer letter on noise and vibration, and often a building-engineer sign-off. 'Board package by others' on the quote shifts that work to the homeowner.
Penetrations through fire-rated assemblies need UL-listed firestopping (DOB inspection item). New equipment usually needs a dedicated 240V circuit. Condensate needs a gravity drain or a pump with a float switch. All three are commonly hidden in 'by others' lines.
Refrigerant context: see the A2L phaseout decision page for the full refrigerant timeline and the New York install rules.
These ranges reflect labeled, fully-permitted, code-compliant installs by a licensed NYC contractor with manufacturer authorization. Sub-permit, non-authorized, or duct-by-others quotes commonly run 20-40% lower upfront — and 2-3x higher over a five-year window once warranty gaps and re-work surface.
Fair NYC range: $4,000 — $7,500 installed, including line set, electrical, and DOB filing. Sub-$3,500 typically signals stock-only duct, no permit, or non-authorized installer.
Fair NYC range: $14,000 — $22,000 installed, depending on line-set routing complexity, brand, and unit capacity. Brownstone retrofits run higher due to chase work and concealed line hide.
Fair NYC range: $35,000 — $90,000+ for a 3-5 floor commercial install, depending on tonnage, branch box count, controls integration, and permit complexity. Class A office work with BMS integration runs at the high end.
Fair NYC range: $9,000 — $16,000 for like-for-like central AC replacement using existing ductwork. Higher if ducts need rework or if the building is on a co-op alteration agreement.
Fair NYC range: $8,500 — $14,000 for residential gas boiler replacement (Weil-McLain, Burnham, similar). Steam-to-hydronic conversion runs $20,000+. NYC DOB and DEP filings included.
See full labor rates and financing options on /rates-and-financing.
Upload the PDF or a phone photo. Add a one-line note about the project. The dispatcher routes it to a licensed Vinco tech who knows the NYC market, the fab side, and the brand authorization tiers. Reply lands in your inbox the same business day.
Seven things people ask before sending a quote for review. If yours isn't here, call (212) 810-0915.