How Long Does Air Duct Cleaning Take? Room by Room

"How long will this take?" is one of the first questions people ask when they book a duct cleaning. It's a fair question. You may need to work from home, keep pets out of the way, or plan around school pickup.

There isn't one number that fits every house. A small condo and a large two-story home with a finished basement are very different jobs. What we can do is walk you through the order of the work, room by room, and explain what makes a job go faster or slower. That way you can plan your day and ask the right questions when you book.

Before anything gets cleaned

A typical cleaning starts with a look at the system. The technician finds the furnace or heat pump, the main return, and each supply register, and checks how the ducts are laid out. In Kent, that often means looking in a garage, a utility closet or a crawlspace access.

This is also when the vent count gets confirmed. Basic air duct cleaning at Moment Air Duct Cleaning Kent is $199 for up to 10 vents, plus $29 for each additional vent, so knowing the count up front keeps the price clear.

Floors and furniture near the work area get protected before the equipment comes in.

The work, in a typical order

1. The main return and the equipment area

The return side is usually where the heaviest dust is, so work often begins near the furnace or air handler and the main return duct. This part can take longer in homes where the ducts have never been cleaned, or where pets, a remodel or years of use have added buildup.

2. Living room, family room and kitchen

Main living areas often have the largest registers and the most traffic. Each supply register is opened and the duct behind it is cleaned. Kitchens may need extra attention if grease or fine debris has collected near the registers.

3. Bedrooms

Bedroom vents are usually smaller, but upstairs bedrooms in two-story homes are at the end of the longest runs. Those runs have more turns and more places for dust to settle, so they can take a bit longer than a downstairs room.

4. Bathrooms, hallways and laundry areas

These rooms may have one register each. Hallway returns, though, can be some of the dirtiest grilles in the house.

5. Basement or finished lower level

Finished basements add registers and sometimes a separate return. They can add noticeably to the job.

6. Final check

Registers and grilles go back on, and the system is turned back on so airflow can be checked at the vents.

What makes a job shorter or longer

• Number of vents. More registers and returns mean more work, simple as that.
• Home layout. Single-story homes with a crawlspace are often more straightforward than multi-level homes with long upstairs runs.
• How dirty the ducts are. First-time cleanings and post-remodel jobs usually take longer.
• Access. A furnace in a tight crawlspace or a cluttered closet takes more time to reach.
• Add-ons. Booking dryer vent cleaning on the same visit adds to the total.

How to make the day go smoothly

1. Clear a path to the furnace or air handler and to each register.
2. Move small furniture away from floor registers and low returns.
3. Plan for pets. Keep them in a room that's already been finished or out of the house.
4. Tell us about problem rooms when you book, so they get attention.
5. Replace your filter after the cleaning so the clean ducts aren't fed by an old, dusty one.

When you book, ask for a time range

The most accurate answer comes from your own home's details. When you call, share the number of vents, whether the house has one story or more, and where the furnace or air handler is. With that, you can ask for a rough time range for your job.

If only one or two rooms are the problem, deep duct cleaning targets those vents at $59.99 per vent, which is a smaller job. Dryer vent cleaning is $99 for up to 10 feet, plus $15 per additional foot.

We serve homes across Kent and nearby communities. Read more about air duct cleaning or see our pricing page.