HVAC Service Areas in NYC

Typical buildings: Prewar co-ops, postwar white-brick buildings and townhouses

Common systems:

What we usually see here: Uneven steam heat between line A and line B apartments, and window units that boards want swapped for quieter through-wall sleeves.

Typical buildings: Prewar co-ops, brownstones and a few new condo towers

Common systems:

What we usually see here: Old one-pipe steam risers that bang and overheat, plus landmark rules that limit where a mini-split condenser can go.

Typical buildings: High-rise condos, corporate offices and hotel-style buildings

Common systems:

What we usually see here: PTAC sleeves past their service life and office ducted systems that were never rebalanced after a build-out.

Typical buildings: New luxury glass towers and large commercial floors

Common systems:

What we usually see here: Four-pipe fan coil and VRF units that lose capacity when filters and coils go too long between service.

Typical buildings: Cast-iron loft conversions with big open floor plates

Common systems:

What we usually see here: Long duct runs through a loft that never reach the back rooms, and landmark facades that rule out through-wall units.

Typical buildings: Converted warehouses, luxury lofts and new condos

Common systems:

What we usually see here: Concealed ducted splits hidden above ceilings that are hard to access, so maintenance gets skipped until something fails.

Typical buildings: Prewar walk-ups, gallery buildings and new glass condos

Common systems:

What we usually see here: Mixed old-and-new stock: steam heat on one floor, a VRF condo on the next, often in the same block.

Typical buildings: Prewar office conversions and boutique commercial buildings

Common systems:

What we usually see here: Office-to-residential conversions with ductwork that no longer matches how the space is used.

Typical buildings: Prewar co-ops and townhouses near the park

Common systems:

What we usually see here: Radiator heat with no zoning, so residents open windows in January to cool down.

Typical buildings: Postwar towers and through-wall sleeve buildings

Common systems:

What we usually see here: Aging PTAC chassis leaking at the sleeve and drawing far more power than a modern replacement.

Typical buildings: Tenement walk-ups and small multifamily buildings

Common systems:

What we usually see here: Tight risers and no roof access, so mini-split retrofits need careful condenser planning.

Typical buildings: Landmarked townhouses and small prewar co-ops

Common systems:

What we usually see here: Historic district rules on exterior equipment, which pushes most cooling upgrades to concealed ducted or ductless systems.

Typical buildings: Office conversions and new high-rise rentals

Common systems:

What we usually see here: Fan coil and PTAC units running year-round in converted office towers with heavy filter loading.

Typical buildings: Brownstones, prewar walk-ups and new mid-rises

Common systems:

What we usually see here: Brownstone boilers well past 25 years old, usually paired with window units for summer.

Typical buildings: Large prewar apartment buildings and co-ops

Common systems:

What we usually see here: Central boilers serving many units, where one bad zone affects whole lines of apartments.

Typical buildings: New waterfront condos plus converted industrial lofts

Common systems:

What we usually see here: New-build VRF and heat pump systems that need commissioning-level attention, not just filter swaps.

Typical buildings: Landmarked brownstones and prewar co-ops

Common systems:

What we usually see here: Historic district restrictions on visible equipment and tight mechanical rooms in brownstone cellars.

Typical buildings: Warehouse loft conversions with high ceilings

Common systems:

What we usually see here: Huge open volumes that a single undersized system can never keep even from front to back.

Typical buildings: Two- and three-family houses plus new waterfront buildings

Common systems:

What we usually see here: Multi-family houses with one system trying to serve separately occupied floors.

Typical buildings: Brownstones and row houses, many owner-occupied

Common systems:

What we usually see here: Converting from radiators to central air without losing ceiling height on the parlor floor.

Typical buildings: Row houses and small prewar apartment buildings

Common systems:

What we usually see here: Narrow houses where duct chases compete with closets and stairwells.

Typical buildings: Brownstones, limestones and prewar co-ops

Common systems:

What we usually see here: Original boilers and radiators alongside a growing push toward heat pump conversions.

Typical buildings: New high-rise rentals and office towers

Common systems:

What we usually see here: Tower-scale PTAC and fan coil fleets where deferred maintenance shows up as tenant complaints.

Typical buildings: Prewar apartment buildings and new mid-rise condos

Common systems:

What we usually see here: Older buildings retrofitting cooling one unit at a time, with condenser placement approved case by case.

Typical buildings: Prewar apartment houses and limestone row houses

Common systems:

What we usually see here: Central steam heat with no cooling infrastructure, so summers run entirely on window units.

Typical buildings: Brownstones and multi-family row houses

Common systems:

What we usually see here: Renovation-driven system swaps where the old boiler is removed before ductwork is planned.

Typical buildings: Landmarked brownstones and new condo buildings

Common systems:

What we usually see here: Landmark review on exterior condensers next to brand-new buildings with modern VRF.

Typical buildings: Converted industrial buildings and multi-family houses

Common systems:

What we usually see here: Loft conversions with improvised ductwork and poor ventilation in interior rooms.

Typical buildings: Single-family and two-family houses

Common systems:

What we usually see here: Gas furnaces and central AC of similar age, so the whole system usually ages out at once.

Typical buildings: Two- and three-family houses plus newer mid-rises

Common systems:

What we usually see here: Multi-family houses where each floor wants its own thermostat.

Typical buildings: New luxury high-rises and converted factory lofts

Common systems:

What we usually see here: Tower PTAC and heat pump units with heavy year-round runtime and filter loading.

Typical buildings: Garden apartments and small co-op buildings

Common systems:

What we usually see here: Co-op boards standardizing what cooling equipment residents are allowed to install.

Typical buildings: Prewar garden co-ops and small apartment buildings

Common systems:

What we usually see here: Landmarked garden co-ops with strict rules about anything visible from the courtyard.

Typical buildings: Tudor houses, prewar co-ops and postwar towers

Common systems:

What we usually see here: A mix of house-scale furnaces and building-wide steam, often on the same street.

Typical buildings: Single-family houses and newer condo developments

Common systems:

What we usually see here: Houses with additions the original ducted system was never sized for.

Typical buildings: Prewar co-ops, large apartment buildings and houses

Common systems:

What we usually see here: Large central boilers serving buildings with no cooling distribution at all.

Typical buildings: Multifamily apartment buildings

Common systems:

What we usually see here: Building-wide heat with individual sleeve units of very different ages.

Typical buildings: Single-family and two-family houses

Common systems:

What we usually see here: Basement furnaces and aging AC condensers exposed to coastal air.

Typical buildings: Prewar apartment houses and mixed-use buildings

Common systems:

What we usually see here: Older steam plants that need inspection filings kept current.

Typical buildings: Victorian houses and small apartment buildings

Common systems:

What we usually see here: Older houses converted to apartments with one heating system and no zoning.

Typical buildings: One- and two-family houses

Common systems:

What we usually see here: Furnace and ductwork reaching end of life together, plus damp basements.

Typical buildings: Single-family homes on the South Shore

Common systems:

What we usually see here: Whole-house replacements where homeowners are weighing a heat pump against another gas furnace.