If you are trying to budget for air duct cleaning in New Hampshire, Massachusetts or southern Maine, here is what Armstrong’s own quotes show. Across Armstrong’s residential air duct cleaning quotes from January 2025 to November 2026, about 8 in 10 homes with one heating and cooling system were quoted between about $650 and $1,500 before tax. For homes with two systems, about 8 in 10 were quoted between about $1,350 and $2,550 before tax. For homes with three or more systems, about 8 in 10 were quoted between about $2,000 and $4,100 before tax.
Those ranges are wide on purpose. Your home is not an average of other homes, and the ductwork behind your walls decides how much work the cleaning takes.
Old Homes, Ductwork Added Later
About 1 in 4 homes in New England was built before 1940, more than twice the national share, according to the U.S. Census Bureau. In the 1800s, homes were heated mainly by fireplaces and stoves and, by late in the century, by steam or hot-water radiators or gravity hot-air systems; forced-air heating with ducts and registers became popular in the 20th century, according to the National Park Service.
We often quote and clean air ducts in homes built in the 1800s and early 1900s. Most homes of that age were not built with forced-air ductwork in mind, so the ductwork added later had to be routed around the existing structure, and that routing can be complex or simple. That is why the age of the home matters even when the ductwork came later. Ductwork in a home built in 1950 is often built differently from ductwork in a home built in 2000, which changes how the system is cleaned.
Similar Homes, Different Ductwork
Two homes of the same size and age, each with one system and one zone, can still differ: a single-floor ranch has a larger footprint than a colonial of the same square footage, so it usually has more ductwork to clean. The ranch spreads its rooms across one level, so the main duct and the branch lines run farther to reach every room. The colonial stacks its rooms, and the runs are shorter. On paper the houses look alike. In the basement they do not.
What Changes the Work
Armstrong sets the base price for each system from how long that system is expected to take, so even the base price changes with the system’s access, the age of the home, its square footage, its footprint, painted-in-place vents and where the trunk duct runs.
The number of zones on a system, where the system sits, the access to it, where the vents are and what style they are all change the work, and so the price. A few examples:
- Zones. A system with more than one zone has more trunk duct feeding the separate areas of the house.
- Where the system sits. A furnace in an open basement is reached differently from an air handler in an attic or a closet.
- Vent locations. Ceiling vents on the top floor usually mean ductwork running through the attic.
- Vent style. Registers painted in place have to be freed carefully before they come off.
- Access. A finished basement or a small attic hatch changes how the crew reaches the ducts.
Why a Flat Rate Misses
A flat price or a price per system cannot account for these differences, so it does not quote a home’s air duct cleaning accurately. It also opens the door to a pattern worth knowing about: a very low headline price is used to get in the door. Once on site, the provider claims your system is “worse than expected” and pushes expensive add-ons before meaningful cleaning starts.
How We Build Your Quote
Armstrong provides free estimates by phone for residential services. We ask how many systems you have, where each one sits, how many thermostats you have, how many vents there are and when the house was built, because those answers shape the work. You can answer the same questions yourself on our air duct cleaning questions form. When the crew arrives, they check the home and the system against what you told us. Armstrong does not silently expand scope or add charges.
Our standard service area is all of New Hampshire, eastern Massachusetts through about Worcester including Greater Boston, and southern Maine down to the New Hampshire border. Armstrong is the largest duct cleaning company in New England by number of service teams and number of certified personnel.
Want to know where your home falls? Fill out the air duct cleaning questions to get your quote, or contact us and tell us about your house.
