Who this is for
Homeowner associations and the management companies that run them. Apartment buildings and condo towers with a dryer in every unit or a shared laundry on each floor. Landlords with a handful of doors. Laundromats, salons, gyms, restaurants and offices where the ducts are part of the equipment rather than part of the house.
The work is the same work. What changes is that somebody has to answer for it afterwards, which is why the record matters as much as the cleaning.
How multiple units get priced
Per vent or per system, and the rate comes down as the count goes up. Doing twenty units on one mobilisation is a fraction of the cost of twenty separate visits, and that saving belongs to the building rather than to us.
A walk of the property comes first when the layout is not obvious from a description. Shared stacks, roof manifolds and runs that were rebuilt at some point are all things worth finding before a schedule is agreed rather than during it.
You get one quote covering the whole scope, with the per-unit figure visible in it.
Access, notice and residents
Occupied units are the hard part of any building job, not the ducts. Tell us the notice period the association or the lease requires and we work to it, including the version where a manager escorts and the version where residents are given a window and we work the list.
Units nobody is home for get rescheduled rather than skipped, and you get the list of which ones are outstanding so a building does not end up half done with no record of which half.
Roof access rules vary by community. If the association wants to be told before anyone is up there, say so when you book.
What the board or the file gets
A record per address: what was cleaned, airflow before and after, photos, and anything found that needs a repair. That is what a board needs to show the work happened and what a manager needs when a resident asks why their dryer is still slow.
There is no charge for it. It comes with the invoice, and it is the same record a homeowner gets for a single visit.
Air ducts in a commercial system
Commercial and multi-family systems are the case where duct cleaning most often earns its money, and it is the reverse of the advice we give most homeowners. Bigger systems run more hours, filters get changed on somebody else's schedule, and construction or a remodel puts dust through a building that nobody was living in at the time.
A new or recently renovated building is the clearest case of all. The air duct page explains the test we apply, and it applies here too: there has to be a reason, not a calendar.
Putting it on a schedule
Shared laundry rooms and buildings with a dryer in every unit are worth doing on a fixed interval, because the volume through those machines is nothing like a house and the runs are usually longer. The interval depends on the same five things it does anywhere, with usage weighted heavier.
An interval agreed once and diarised is also the cheapest version for the building, since it turns an emergency into a planned visit.