Air duct cleaning needs about fifteen minutes of preparation from you. Not two hours of moving furniture, and nothing you need to buy. But the fifteen minutes matter, because the most common cause of a slow or partial cleaning is a technician who cannot physically reach half the vents.
Here is exactly what to do before we arrive, and what you can safely ignore.
The short version
Clear a three-foot path to every supply and return vent. Clear the door of the closet, attic hatch or crawlspace where your air handler lives. Put pets in a room we will not be working in. Plan for someone to be home. Expect two to five hours and real noise.
That is the whole list. The rest of this page explains why each one matters.
1. Clear access to every vent
This is the one that actually changes the outcome. A typical Triangle home has between eight and twenty supply registers plus one or two large returns, and every one has to be opened, brushed and vacuumed.
Walk the house and look at floor level. Sofas and beds pushed over floor registers, boxes stacked in front of a return, a chest of drawers against a wall vent, rugs laid across floor vents. You do not need to move heavy furniture out of the room, just far enough that the grille can be unscrewed and a brush fed into the duct.
Ceiling registers are usually fine, but if a tall bookcase sits directly beneath one, shift it.
2. Clear the way to the air handler
The air handler is where the negative-air machine connects, and it needs a working space rather than a gap. In Triangle homes it is normally in a hallway closet, the garage, the attic or the crawlspace.
Closet: empty the floor. Attic: clear the hatch and anything stacked under it. Crawlspace: unlock the access door and move whatever is parked in front of it. Garage: leave a clear route from the driveway.
3. Plan for pets and small children
The equipment is loud, doors get propped open, and hoses run through the house for hours. Put pets in a room we will not be working in and tell us which one.
This matters more with cats than dogs, because an open exterior door and a startled cat is the one genuinely bad outcome of a duct cleaning appointment.
4. Does someone need to be home?
Yes, for the start and the end at minimum. At the start we walk the house with you and confirm what is included. At the end we show you photographs of your own ducts, before and after.
If you cannot be there the whole time, be there for those two moments. The handover is the part that tells you whether you got what you paid for.
5. How long, and how loud
Two to five hours for most single-system Triangle homes. Two systems, or a house over about 3,000 square feet, can run longer. Our air duct cleaning process page breaks down how long each stage takes.
It is genuinely loud. The vacuum is a truck-mounted or cart-mounted unit, not a shop vac. If you work from home, schedule calls around it or plan to be out. If there is a baby napping, tell us and we will sequence the rooms around it.
6. What we bring, and how we protect your home
Negative-pressure containment, so debris is pulled into a sealed unit instead of into your rooms. Rotary brushes and air whips sized to your ducts. Drop cloths at the air handler and at every access point. Shoe covers. This is what a full air duct cleaning service includes as standard.
You should not need to clean up after us. If you do, something went wrong, so tell us before we leave.
7. What you do not need to do
Do not vacuum or dust beforehand, because we are about to disturb far more than you could. Do not buy a new filter; ask us what size you need and fit it after. Do not turn the system off in advance, as we will shut it down and isolate it ourselves. And do not move heavy furniture. Just clear the vents.
8. Crawlspace and attic systems in Triangle homes
A lot of Cary and Raleigh housing stock runs ductwork through a vented crawlspace or an unconditioned attic, and two things follow from that.
Access is the variable that moves the timeline most. A crawlspace with low clearance and a locked door adds time before any cleaning starts, so unlocking it in advance genuinely shortens the appointment.
And in our humidity, crawlspace ducts are where we most often find moisture damage or disconnected runs. That is a repair conversation rather than a cleaning one. If that is your setup, expect us to photograph what we find and talk to you before doing anything else.
Frequently asked questions
Is it messy? It should not be. Negative pressure means debris goes into a sealed vacuum rather than into your rooms. Some dust at the register faces is normal, and we wipe those down before we leave.
Do I need to be home the whole time? No, but be there at the start and at the finish.
Can you work around a nap or a work call? Yes, if you tell us at the walkthrough. We can sequence the rooms.
Should I change my filter before you come? After, not before. Ask us the size while we are there.
How do I know it was done properly? Ask for photographs of the inside of your own ducts, before and after.
Booking from our Cary or Raleigh office
We run two Triangle offices. Our Cary office is at 150 Preston Executive Dr and covers Cary, Apex, Morrisville and Holly Springs. Our Raleigh office is at 4913 Professional Ct and covers Raleigh, Garner, Wake Forest, Knightdale and Durham. Both reach us on (888) 404-8321.
Not sure where your air handler is, or how many vents you have? Send a photo of the closet or the crawlspace hatch and we will tell you what access we will need before the appointment, so nothing slows the job down on the day.