The honest answer is that price depends on the home. The size of the house, the number of vents and returns, the number of HVAC systems, and how much buildup is inside all affect the time a proper cleaning takes, and time is what you are paying for. A townhouse and a 4,000-square-foot colonial with two systems are simply different jobs.
Here is what a legitimate quote is built on. Square footage and the number of supply registers and returns set the baseline. A second HVAC system adds real work, because everything doubles: two trunk lines, two blowers, two sets of runs. Condition matters too. A home cleaned three years ago comes back into shape faster than one that has never been touched, and post-renovation jobs take longer because construction dust packs in differently than household dust.
Be careful with whole-house specials advertised at very low prices. The pattern is always the same: the crew arrives, the price climbs once they are inside, and the actual work covers a fraction of the system. We hear the stories from homeowners who paid for two or three of those specials and still had dirty ducts. A quote that seems too good to be true usually is.
The other side of pricing is value. A proper cleaning covers the entire system under negative air: every supply run, every return, all registers removed and cleaned, the blower compartment, and before-and-after photos so you can verify the work. Done right, you will not need the service again for two to three years. Amortized over that span, a real cleaning costs less per year than the coupon special you would have to buy three times to get the same result.
A fair quote comes from real questions: square footage, number of vents, when the ducts were last cleaned, whether there are pets, whether anyone in the home has allergies. That is why we quote based on your actual situation instead of a one-size number. If a company gives you a firm price without asking a single question about your home, the price is not for your home.
Bundling saves money too. Adding dryer vent cleaning to a duct cleaning visit costs less than booking it separately, because we are already at the house with the equipment set up. Ask about it when you call.
Call us at (302) 378-7002 and describe your home. You will get a straightforward price with no pressure and no upselling, the same way we have done it for over 40 years.