AC Repair
Same-day repair for central air, rooftop units and mini-splits.
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Brooklyn HVAC Company · Serving Flatbush
Brooklyn HVAC Company repairs and installs boilers, furnaces, air conditioners, mini-splits and heat pumps across Flatbush, from the Victorians of Ditmas Park to the prewar buildings on Ocean Avenue. Same-day service, written pricing.
Flatbush covers more kinds of housing than most people realize. Six-story prewar apartment buildings along Ocean Avenue, Flatbush Avenue and the side streets off Church, each with a steam boiler in the basement and a super running it. The big wood-frame Victorians of Prospect Park South, Ditmas Park and Fiske Terrace, with wraparound porches, 3,000 square feet of radiators and an oil-to-gas boiler that was never resized. Brick two-families and rowhouses through East Flatbush. Brooklyn HVAC Company works in all of them, about 15 minutes east of our shop on 13th Ave by way of Church Avenue.

Three building types, three sets of problems. The Victorians are enormous and leaky, and the boilers that heat them were sized for oil and coal before that, so they short cycle on gas and still leave the third floor cold. Cooling them means ductwork through attics that hit 130 degrees, or mini-split heads in rooms with 10-foot ceilings and plaster medallions nobody wants to drill. A Victorian attic with a 4-ton air handler and a 1930s knob-and-tube circuit is a conversation we have often. The prewar buildings run on central steam with hundreds of radiator vents, a heat timer in the basement and an HPD inspector who shows up when a tenant calls 311. The two-families in East Flatbush are the most common call: hot water boilers, sleeve units and finished basements.
Prospect Park South, Ditmas Park and Fiske Terrace-Midwood Park are landmarked historic districts, and the Landmarks Preservation Commission cares about equipment visible from the street. Condensers go behind the house or on a side yard screened from the sidewalk, and through-wall sleeves on a street-facing facade need LPC approval. Gas work on boilers and furnaces goes through the NYC Department of Buildings and Con Edison. Landlords of the prewar buildings carry the NYC heat season obligation, October 1 through May 31, and we prioritize no-heat calls from building owners and document every repair for the HPD file.
Cooling a Victorian is a design problem before it is an installation. AC Installation & Replacement with a ducted system in the attic and a second air handler in the basement works for houses with the space; Ductless Mini-Split Installation & Repair works for the rest, with heads placed where they do not fight the woodwork. Heat Pump Installation & Repair is a real option here because the houses need cooling anyway, and a cold-climate heat pump carrying the shoulder seasons takes a lot of hours off a boiler that burns gas like a bus. AC Repair covers the window and sleeve units in the apartment buildings, the central systems in East Flatbush, and the condensers that quit during a Church Avenue heat wave. 24/7 Emergency HVAC Repair handles the ones that quit at night.
Boiler Repair & Installation is the heart of our Flatbush work. One-pipe steam in the apartment buildings with main vents, radiator vents and a pressuretrol that somebody cranked up to 5 psi. Hot water boilers in the Victorians with gravity-era piping and 20 radiators on three zones. Replacements sized to the connected radiation, not the old nameplate, with the near-boiler piping done to the drawing. Houses with ductwork run gas furnaces, and Furnace Repair and Furnace Installation & Replacement cover them, with chimney liners for the old brick flues. The prewar buildings on Ocean Avenue often run a vacuum steam system, and those need a technician who has seen one before. A combustion and carbon monoxide test comes with every heating visit, in a 60-unit building and a one-family alike.
Building owners get an HVAC Maintenance & Tune-Ups plan that covers the boiler, the heat timer and the vents every fall, with a written report for the file. Vent replacements alone fix half the cold-radiator complaints. Homeowners get the spring and fall visits that keep a Victorian's systems from surprising them in January. Indoor Air Quality here is old-house dust, damp cellars and Flatbush Avenue traffic, so media filters, dehumidification and sealed ducts through Ductwork Installation & Repair. For the Flatbush Avenue, Church Avenue and Cortelyou Road restaurants and shops, Commercial HVAC covers rooftop units, PTACs and kitchen exhaust. Call (929) 833-7835 or send the form. A technician is usually in Flatbush the same day.
Same-day repair for central air, rooftop units and mini-splits.
Learn moreLoad-calculated central air and condenser replacements.
Learn moreIgnitors, sensors, motors and heat exchanger checks, usually one visit.
Learn more80% and 96% AFUE furnaces, vented and permitted.
Learn moreSteam and hot water boilers repaired and replaced.
Learn moreCold-climate heat pumps, ducted or ductless.
Learn moreSingle-zone and multi-zone systems, no ductwork needed.
Learn moreSpring and fall tune-ups, annual plans.
Learn moreNo heat or no AC, nights, weekends and holidays.
Learn moreNew duct runs, sealing, insulation, balancing.
Learn moreMedia filters, UV lights, humidifiers, dehumidifiers.
Learn moreRooftop units, PTACs and maintenance contracts.
Learn moreOur location
5305 13th Ave, Brooklyn, NY 11219 · (929) 833-7835
HVAC repair and installation in Flatbush, Brooklyn. Call (929) 833-7835 or request a free quote.