NYC — Looking for steam contractor/consultant for pre-war loft building diagnostic

We have a 15-story former factory building from the late 1920s in Midtown Manhattan, converted over the years to residential and commercial use. Central steam heat, one boiler, radiators throughout. We are looking for an experienced steam contractor or consultant — preferably a smaller shop — to do a proper diagnostic inspection and recommend corrective work.

The building has the usual pre-war complications: floors originally designed as open factory space, now subdivided into units of very different sizes and layouts. Large industrial windows, mixed vintage — some original and drafty, some newer. Solar exposure varies a lot by exposure. Original cast-iron radiators in some units, smaller replacements in others, complete removals in a few.

The system has been changed piecemeal over the years with no building-wide reassessment. The result is what you'd expect: some units overheat badly, others don't get enough heat.

The most telling example is a unit where all radiators have been removed — no radiators, no supplemental heat — and it stays comfortably warm all winter. We think it's riser and pipe heat but we'd like someone who knows steam to tell us what's actually going on.

Other known issues: most basement pipe insulation is gone, main venting is suspected to be inadequate, the Heat-Timer controls are relatively new but have not been properly programmed and are not functioning as intended. The sensors are old and thought to be unreliable, and operating pressure may be higher than it needs to be.

We have a written RFP with full detail. Happy to share it with anyone interested. Looking for someone who will come inspect, tell us what they find, and price the first round of fixes — not a boiler replacement proposal.

If this sounds like your kind of work, please reach out.