If you have a forced-air system, you’ve probably been told you need to clean the ducts. Maybe you got a quote and wondered if it was worth it. Or maybe you’re just curious what you’re actually paying for.
This article breaks all of those pieces down so you know what duct cleaning costs, how often you need it, and how that compares to maintaining a ductless system. Here’s all the information you need to make a good decision.
What Is Air Duct Cleaning?
Duct cleaning is a professional service that removes dust, debris, and buildup from inside your home’s ductwork. A technician uses a high-powered vacuum and brushes to pull out what’s accumulated in the system over the years.
People do it for a few reasons:
- After a renovation since drywall dust gets into everything
- If there’s visible mold in or near vents
- After a pest problem
- When they notice increased dust in the home or allergy symptoms getting worse
It’s worth knowing: the EPA doesn’t recommend duct cleaning on a routine schedule unless you have a specific reason. That said, ducts in older homes or systems that haven’t been serviced in years can genuinely benefit from it.
How Much Does Air Duct Cleaning Cost?
Nationally, most homeowners pay between $300 and $600 for a full duct cleaning. Larger homes with more vents can run $700 or more.
In the Pacific Northwest, prices are roughly in that same range. If you’re in Olympia, Tumwater, or Lacey, expect most quotes to fall between $350 and $550 for a typical single-family home.
Watch out for lowball offers because the $99 duct cleaning deals that show up in the mail are usually a bait-and-switch. The real job ends up costing significantly more once they’re in your home.
A legitimate duct cleaning takes two to four hours and covers supply and return vents, the air handler, and the main trunk lines.
How Often Do Ducts Need to Be Cleaned?
The general guidance is every three to five years, though most homes can go longer without any real impact.
If no one in your household has allergies, you haven’t done renovations recently, and you’re changing your filters regularly, you can probably push it toward the five-year mark without issue.
The cost adds up over time. If you pay $400 every four years, you’re spending $100 per year just on duct cleaning, which does not count filter replacements or other HVAC maintenance.
What Does Ductless Maintenance Involve?
Ductless systems don’t have ducts to clean, but they do need regular maintenance to run efficiently. Here’s what that looks like:
- Monthly filter rinse: The filters in each indoor head unit – pull out and rinse under water. Most homeowners do this themselves in five minutes.
- Annual tune-up: A technician checks refrigerant levels, cleans the coils, inspects electrical connections, and confirms the system is running properly.
- Indoor head unit cleaning: The coils and fan inside each unit benefit from a thorough cleaning every year or two, usually done during a tune-up.
That’s mostly it. No ductwork to worry about, no trunk lines collecting debris over years.
How Much Does Ductless Maintenance Cost?
A professional ductless tune-up typically runs between $75 and $200 per visit, depending on how many indoor units you have and what the technician finds.
The filter cleaning you do yourself costs nothing beyond a few minutes of time each month.
Over a year, most ductless homeowners spend $100 to $200 on maintenance, which can be less than the per-year equivalent of duct cleaning, and with shorter, less disruptive service visits.
Side-by-Side Comparison
| Ducted System | Ductless Mini-Split | |
| Cleaning / maintenance type | Air duct cleaning | Filter cleaning + coil wipe-down |
| How often | Every 3 to 5 years | Monthly filter rinse; annual tune-up |
| Typical cost | $300 to $600 per visit | $75 to $200 for annual tune-up |
| Can you do it yourself? | No — requires professional equipment | Filters, yes. Full tune-up, no. |
| Disruption to home | Moderate — multiple vents, equipment, dust | Low — technician accesses indoor heads only |
| Improves air quality? | Yes, if ducts are dirty | Yes — filters trap dust and allergens |
What to Think About If You’re Considering a Switch
Duct cleaning isn’t a reason on its own to switch to ductless. But if you’re already asking questions about your system, here are a few worth thinking through:
- How old is your current system? Older ducted systems often have leaky ductwork that loses a significant amount of heated or cooled air before it reaches your rooms.
- Are some rooms always uncomfortable? Ductless systems let you control temperatures independently by room, which solves the “one thermostat, multiple problems” issue that’s common in older homes.
- Are your energy bills higher than you’d like? Ductless heat pumps are significantly more efficient than electric baseboard or older gas systems.
- Does your home even have ductwork? Many homes in Western Washington were built without it. Ductless is often the most practical option and does not require tearing into walls.
A ductless system isn’t the right fit for every home. But for a lot of homeowners in this region, it simplifies maintenance, lowers long-term costs, and makes the home more comfortable year-round.
Not Sure What Makes Sense for Your Home?
We can walk you through it. Alpine Ductless serves Thurston County and the surrounding South Puget Sound area. We’ll look at your home, your current system, and give you an honest answer on whether ductless makes sense for you or whether your existing setup just needs a tune-up.
Schedule a free estimate or maintenance visit.