Is dustless floor sanding really dustless?
The honest answer is no. “Dustless” is the trade’s short word for sanders that capture dust at the machine instead of throwing it into the room. A hose runs to a vacuum with fine filters. On a good day, the cloud that used to settle on every picture frame is mostly gone.
What remains is still dust. Edgers that cut the perimeter do not always have the same capture. Detail work with a scraper produces shavings and fines. Changing a vacuum bag, walking grit in on boots, and sanding a closet with the door acting like a bellows all leak some dust into the rest of the house. If you have allergies, a new baby, or a piano, treat the job as low-dust, and still plan a cleaning day.
Anyone who tells you the house will look untouched at 5 p.m. is selling the adjective. Ask instead what machines they use, whether the edger is connected to a vacuum, and how they seal the doorway of the work zone. [PARTNER: dust control method] is the description that should match the equipment on the truck.
How the containment setup works
The floor sander’s skirt and the vacuum have to be maintained. A torn skirt or a full canister turns a dustless machine back into an ordinary one. Filters that are not rated for fine wood dust blow the fines out the exhaust, which is worse than visible chips because you breathe them.
Before sanding, floor registers in the work area get covered, and the HVAC fan should not be pulling air from that room through the rest of the house. Return grilles are the usual path. Some crews add a plastic wall at the hallway. That plastic is not optional just because the sander has a hose.
Lead paint is a separate issue. Many Huntsville houses are old enough that window trim and baseboards may have been painted with lead. Sanding the floor is not the same as sanding the trim, but dust and friction at the edge can disturb paint. If the house was built before 1978, ask about lead-safe practices. This page is not a lead assessment. [PARTNER: lead-safe practice] belongs in the contractor’s own description once they have one.
Who should ask for dust containment
Ask for it if you will live in the house during the work, if someone in the house has asthma, or if the floors connect to a kitchen you still need to use. An empty house that will be cleaned by a builder before closing has less reason to pay for the setup, though the crew may still prefer it because the finish coats go down cleaner. Dust in the air while finish is applied becomes bumps in the coat.
Occupants, pets, and the work zone should be separated. Cats and dogs do not respect plastic. Plan where they will be for the sanding days and the cure, not only for the first morning.
How much does dustless floor sanding cost?
The extra cost is equipment time and setup, not a different species of wood. Two quotes for the same full sand can differ because one includes containment and the other does not. That is a real difference. It is not a reason to invent a percentage on this page.
Local price difference: [PARTNER: dustless price difference]. Until that is a number from a contractor, compare quotes line by line. The national average this site cites elsewhere is about a hardwood project in general, from Angi, and it is not a price for dustless sanding in Huntsville.
Coats, stain, furniture moving, and stairs still dominate the total. Dust containment is one line, not the whole bid.
What still needs covering
Take down what you care about on the walls near the work, or accept that frames will need wiping. Cover open shelves. Empty the shoe rack. Plan to change HVAC filters after the job. Wipe horizontal surfaces with a damp cloth, not a dry duster that throws fines back into the air.
The finish schedule does not get shorter because the sanding was cleaner. Stay-off times on the refinishing page still apply. Cleaner sanding helps the coat look better. It does not cure the finish faster.
If the goal is only to refresh a dull but intact finish, a screen and recoat makes less dust than a full sand to bare wood, with or without containment. If the color has to change or the scratches are in the wood, you are in a full sand, and containment is about how you live through it.
Questions on this page
Is dustless floor sanding really dustless?
No. The big sanders pull most of their dust into a vacuum through a hose. Fine dust still escapes at the edger, during hand scraping, and when bags or canisters are emptied. Plan to cover returns and to dust the house afterward.
How much does dustless floor sanding cost?
It usually costs more than the same sanding job with open machines, because of the equipment and the setup. This site does not publish the local difference. A national project average for installing new flooring is a different scope and is not a sanding price.
Do I still need to cover furniture?
Yes. Dust containment reduces the cloud. It does not replace plastic on openings, a closed HVAC return, or moving small items off open shelves.