WE PIPE LLC
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WE PIPE LLC
Mechanical Services
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COMMERCIAL HVAC · BROOKLYN & QUEENS

Commercial HVAC Contractor in Brooklyn & Queens

We Pipe LLC handles the mechanical and piping side of commercial HVAC for general contractors and property managers across Brooklyn and Queens. Fan coil unit installation, mini-split line sets, hydronic distribution piping, mechanical room upgrades, and DOB-permitted mechanical work.

We work from MEP drawings, coordinate with the site super and other trades, and file permits directly. Certificates of insurance available on request.

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Commercial HVAC mechanical work we handle

Fan coil unit installation
Chilled water and heating water connections, condensate drain piping, supply and return headers
Mini-split line set runs
Refrigerant line sets through walls and ceilings, line hide raceway, proper slope to outdoor unit
Mechanical piping
Supply and return mains, balancing valves, expansion tanks, air separators, fill systems
Hydronic distribution
Two-pipe and four-pipe systems, variable flow distribution, zone valve installation, baseboard and radiant
Mechanical room upgrades
Boiler-to-distribution connections, new headers, pumps and expansion tanks, backflow preventers
DOB permits & coordination
Mechanical permit filing, DOB inspection scheduling, MEP drawing review and field coordination

Commercial HVAC by neighborhood

Real job stories from each area.

Bushwick →Crown Heights →East Williamsburg →Glendale →Maspeth →Ridgewood →Sunset Park →Williamsburg →

Commercial HVAC jobs

Real jobs with full project write-ups.

BUSHWICKCommercial copper rough-in: new build
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Full plumbing rough-in for a commercial buildout on Flushing Avenue. Threaded copper supply runs, new waste stack connections, and all rough-in work before slab.
MASPETHMechanical piping: commercial building
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Mechanical room piping installation for a mid-size commercial building in Maspeth. Copper supply manifolds, zone valves, insulated runs to multiple floors.
GLENDALEFan coil unit: ceiling mount & copper connections
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Ceiling-mounted fan coil installation in a Glendale commercial space. Copper supply and return connections, condensate drain, and zone control wiring coordination.
WILLIAMSBURGOverhead Distribution Manifold: Commercial Loft Buildout
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A Williamsburg commercial loft buildout needed a central overhead manifold to distribute plumbing to multiple tenant zones before the ceiling was closed. We designed and installed the overhead assembly, copper mains, a branched manifold with ABS branch connections, and zone isolation, giving the building owner a system that can be expanded or modified as tenant layouts change.
SUNSET PARKFull Commercial Plumbing Rough-In: Warehouse-to-Office Conversion
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A Sunset Park warehouse-to-office conversion needed full plumbing rough-in before the dropped ceiling closed, we ran copper supply and PVC drain lines overhead across the entire floor plate, connected to the building's main stack, and left properly positioned stubouts at each future fixture location, all permitted and inspected before the GC proceeded with finishes.

Commercial HVAC questions from GCs and property managers

What commercial HVAC and mechanical work do you do?

Fan coil unit installation, mini-split line set runs, mechanical piping for commercial HVAC systems, hydronic distribution piping, chilled water and heating water loop connections, and mechanical room upgrades. We handle the piping and mechanical side — we coordinate with the equipment supplier and GC on equipment placement and electrical.

Do you file permits for commercial HVAC mechanical work in NYC?

Yes. Mechanical HVAC work in NYC requires DOB permits when it involves new or modified piping systems, mechanical rooms, or equipment with fuel connections. We file permits and schedule inspections. We can also coordinate with a registered MEP engineer when the scope requires stamped drawings.

Can you work off mechanical drawings from an MEP engineer?

Yes. On commercial jobs we work directly from mechanical drawings. We review the drawings for field conditions before starting and flag conflicts with structure or other trades before they become change orders.

Do you work on hydronic systems in commercial buildings?

Yes. Two-pipe and four-pipe fan coil systems, hydronic baseboard and radiant in commercial spaces, boiler feed and return piping, expansion tanks, balancing valves, and variable-flow distribution systems. Most of the pre-war commercial buildings in Brooklyn and Queens have hydronic heat that needs periodic replumbing as systems age.

How do you coordinate HVAC piping work with other trades on a commercial job?

We communicate directly with the site super on sequencing — particularly with structural steel, electrical rough-in, and ceiling framing. Piping conflicts with structure and electrical are the most common cause of HVAC delays on commercial jobs. We identify clashes early and work out routing before the runs are in place.

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Commercial HVAC job in Brooklyn or Queens?

Send us the scope or call. We'll review the drawings and give you a number.

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