HVAC Repair in NYC

Before you pay anyone to fix heat in a rental, know what the law already requires of the owner. HPD's heat and hot water page sets the heat season as October 1 through May 31. During the day, 6 a.m. to 10 p.m., the apartment must be at least 68 degrees whenever it is below 55 outside; at night, 10 p.m. to 6 a.m., at least 62 degrees regardless of the outdoor temperature. Hot water must be available every day of the year at a constant minimum of 120 degrees. A heat or hot water violation is Class C, immediately hazardous, and HPD says it must be corrected within 24 hours of the violation being posted, with penalties of $250 to $500 a day for a first violation and $500 to $1,000 a day after that.

When the Fix Is Yours and When It Is the Landlord's

Central heat, the boiler, the risers and the radiators belong to the building, and a cold radiator is the owner's repair. Contact the landlord first, then call 311 if nothing happens; our guides on filing a 311 heat complaint and the heat season laws cover the steps, and the building's complaint record shows whether the rest of the building is cold too. Cooling is different. There is no general duty on a landlord to provide air conditioning yet. A city law enacted in January 2026 and reported by Time Out as requiring landlords to keep bedrooms at or below 78 degrees when it is above 82 outside, during a June 15 to September 15 season, lets tenants opt in from March 1, 2028, with enforcement from June 1, 2030. Until then a window unit you bought is yours to maintain, while a PTAC or through-wall unit the building installed is usually the owner's equipment, and the lease decides who services it.

Mechanical work in New York City splits along trade lines, and the Department of Buildings' mechanical project requirements are specific about them. Limited plumbing alterations can only be performed by a Licensed Master Plumber, limited oil burner and boiler alterations only by a Licensed Oil Burner Installer, and electrical work by a New York City Licensed Electrical Contractor. Some mechanical work needs no permit at all, within the limits the Buildings Department's rules set, and a technician who proposes to run new gas piping or a new circuit for a mini-split without the relevant licensed trade is cutting a corner that becomes your problem at sale or inspection.

Refrigerant Certification

Anyone who services, installs or disposes of stationary air conditioning equipment must hold EPA Section 608 certification, and under the EPA's refrigerant sales rules suppliers may only sell refrigerant to certified technicians and must keep records for three years. Ask for the technician's 608 card. There is no public lookup for it, which is exactly why asking matters. For work that counts as home improvement over $200, such as a built-in install that alters the wall, the contractor also needs a Department of Consumer and Worker Protection home improvement license, searchable on the DCWP license search; licensed plumbers and electricians working inside their own trade are exempt from that one.

We could not verify a published New York City price survey for HVAC repairs, and the figures that circulate for the city come from pages that block checking, so treat any single number with suspicion. What is consistent across sources is the structure: a diagnostic or dispatch fee for the visit, then a quote for the fault, with refrigerant charged by weight and parts on top. A refrigerant top-up offered without finding the leak is the classic bad repair, since the gas will leave again the same way.

Install Ranges With a Date on Them

For new equipment the best dated figures are planning ranges from a Queens contractor's guide, last reviewed July 2026, which says plainly that they are not quotes: a single-zone ductless mini-split at $2,000 to $6,000 installed, a multi-zone system of two to five zones at $4,500 to $15,000 or more, central air reusing existing ducts at $3,500 to $11,500, and a first-time central system with new ductwork at $8,000 to $16,000 or more. Apartment installs add building approval, a wall penetration and often a certificate of insurance for the crew, which the certificate of insurance checklist explains.

Rebates That Change the Math

Con Edison's air-source heat pump rebates pay $3,500 per apartment and $7,000 per single-family home for a full replacement that retires the old heating system, rising to $5,000 and $10,000 for homes that are insulated and air sealed, and more in designated disadvantaged communities. Incentives are capped at 70% of project cost, or 85% in those communities, and require an approved contractor. Owners of individual apartments in buildings of five or more units qualify; renters do not, so a tenant who wants a heat pump needs the owner to apply.

HVAC technicians quote more accurately when the equipment is identified before the visit, and a photo of the nameplate saves a second trip. For a PTAC or window unit, the brand and model number and whether it blows warm, blows nothing or trips the breaker. For a radiator, whether the whole line is cold or just one unit, and whether the building is steam or hot water. For a boiler, the age, fuel and the last service date, and whether the problem is no heat, short cycling or a leak. The building's own records help too: our guides on checking boiler violations and the hot water requirements show what inspectors have already found.

Before You Request a Quote

• Say whether you rent or own, and for a rental whether the equipment is yours or the building's.
• Give the floor, whether there is an elevator, and the building's rules on outside contractors and certificates of insurance.
• For an install, note where an outdoor unit could sit. A mini-split needs a condenser location the building will allow, which in a co-op or condo means board approval.
• Ask whether the diagnostic fee is credited against the repair.
• Ask for the technician's EPA 608 card and, for any gas, boiler or wiring work, the licensed trade that will do that part.
• For heat pumps, ask whether the contractor is on Con Edison's approved list so the rebate can be claimed.

Heat season is the busy period for boiler and radiator work and the first hot week of summer is the busy period for cooling, so a tune-up booked in September or April gets a faster appointment than an emergency call in January or July.