"Steam cleaning" and "dry cleaning" get compared a lot in general cleaning advice, but the honest answer for most New York City apartments is that they're not really competing methods — they solve different problems, and picking between them depends on your specific situation.
Hot water extraction, the method most people mean by "steam cleaning," injects heated water and solution into the carpet under pressure, then extracts nearly all of it back out with a powerful vacuum. It reaches deep into the pile and backing, which is why it's the more thorough option for embedded dirt, allergens, and general deep cleaning — but it does involve some moisture and a drying period, typically 2 to 4 hours with professional equipment.
Dry carpet cleaning uses minimal moisture, typically a cleaning compound worked into the carpet and then vacuumed out, and the appeal is obvious: no wait time, walk on the carpet again almost immediately. The tradeoff is that it doesn't reach as deep into the pile as hot water extraction, so it's better suited to light maintenance cleaning between deeper visits than to a carpet that hasn't had a real cleaning in a year or more.
For most New York City apartments, hot water extraction is the better default for a general or annual cleaning, specifically because of what it removes: embedded dirt, city grit tracked in from outside, dust mite waste, and pet dander that a lower-moisture method doesn't reach as thoroughly. If allergies, pet odor, or visible deep soiling are the concern, extraction is the more effective tool.
Dry cleaning makes more sense in a narrower set of situations — a commercial space that can't tolerate any downtime for drying, or as a lighter maintenance option between full extraction cleanings for a household that wants to extend the interval without letting dirt build up untreated in between.
Drying time matters more in a small apartment than people initially expect, since there's often nowhere to close off a room while carpet dries the way a house might have a spare room to use instead. This is part of why professional extraction's faster dry time — 2 to 4 hours rather than overnight — matters specifically in apartment-sized spaces.
If you're deciding between the two for a specific situation — pet odor, allergy concerns, or just general annual maintenance — the honest recommendation is extraction for anything beyond light upkeep. It's simply a deeper clean, and for most New York City households dealing with the specific soiling this city produces, that depth is what actually solves the problem rather than just refreshing the surface.
If you're due for a real deep clean rather than light maintenance, hot water extraction is the more thorough choice for most New York City apartments. 1800 New York Carpet Inc provides carpet cleaning NYC-wide with fast 2-to-4-hour dry times.