Sanding & Refinishing
Dustless Floor Sanding in Philadelphia, PA
Dustless sanding means the sander runs with containment and a vacuum collecting dust at the point it is created, instead of a bag hanging off the machine. In a house built before 1978 that is not an upgrade, it is the equipment configuration the federal lead rule describes. Approximately 82.8 percent of Philadelphia housing predates 1978, and in 45 of the city's 132 residential neighborhoods the figure is above 90 percent.
In short
Deco Hardwood Floor sands hardwood floors for homeowners in Philadelphia and within 50 miles of it, using containment and a HEPA vacuum that collects dust at the machine. Dustless floor sanding is the trade name for that setup, and it captures most of the dust a sander produces, not all of it. In houses built before 1978 it is the configuration the federal lead rule describes for machines that strip a coating at high speed. Approximately 82.8 percent of Philadelphia housing predates 1978.
At a glance
- What it is
- Sanding with containment and HEPA vacuum extraction at the machine
- Governing rule
- 40 CFR 745.85(a)(3)
- Applies to
- Paid work disturbing painted surfaces in pre-1978 housing
- What it does not do
- Eliminate dust. It captures most of it
- Philadelphia housing pre-1978
- 82.8% (ACS 2023 5-Year, aggregated across 132 neighborhoods)
What the federal rule actually says
High speed machines that strip a coating are prohibited on painted surfaces in pre-1978 housing unless they carry containment and a HEPA vacuum collecting dust at the point of generation.
The text of 40 CFR 745.85(a)(3) names the equipment, not just the outcome. Read against a drum sander and an edger, both of which are machines built to remove a surface coating at high speed, it stops being a recommendation about tidiness and becomes a description of how the machine has to be assembled.
The rule is triggered by work that disturbs painted surfaces. A floor finished in polyurethane is not a painted surface, but sanding one takes the edger to the baseboard, the shoe molding and the door casing, and in a house from the 1920s those carry many layers of paint. Whether it applies to your job gets decided by looking at the room.
Why we will not promise zero dust
Extraction captures the great majority of what the machine produces, and fine particles still escape and settle for a day or two afterward.
Every contractor in this trade knows this and not all of them say it. A vacuum-extracted sander is dramatically cleaner than a bagged one, the difference is obvious in the room and in the cleanup, and it is still not a sealed process.
We seal the work area, we cover the returns, and we clean at the end. What we do not do is promise a result that the equipment cannot deliver, because that promise is the single most common complaint in floor refinishing.
When dustless floor sanding is worth asking for
Ask for vacuum extraction on any sanding job, and treat it as required when the house was built before 1978 and the edger will touch painted trim. These are the situations where the setup matters most.
The house was built before 1978
The federal lead rule treats housing of that age as covered unless lead has been ruled out. The age of the house changes the setup before anything else is decided.
Painted trim meets the floor
Baseboards, shoe molding and door casings carry layers of old paint. The edger runs right against them, and that contact is what brings the lead rule into the room.
You are living in the house
The kitchen, the bedrooms and the bathroom stay in use while one part of the house is sanded. Containment is what keeps the work out of those rooms.
Young children live there
Lead dust does the most harm to young children, who are close to the floor and put their hands in their mouths. Dust control matters more in that house.
The house has forced air
A return duct in the work area pulls sanding dust in and sends it to every room on the system. Returns and vents get covered before the machines start.
The rooms are open to each other
A living room that runs into the kitchen and the stair has no door to close. The barrier has to be built, and extraction does more of the work.
How the work runs
We check the age of the house
Pre-1978 changes how the work is set up before anything else is decided.Containment goes up
Work area sealed, vents and returns covered.Extraction at the machine
The vacuum collects dust where it is generated, not after it travels.Sanding in passes
Coarse to fine, edger and hand work at the perimeter.Cleanup and verification
Surfaces wiped and checked before the containment comes down.
What dustless floor sanding includes, and what it does not
It includes the containment, the extraction at the machine, the sanding itself and the cleanup. It does not include a promise that nothing settles afterward, and it is not lead abatement.
Included
- Checking the age of the house and the painted trim before the setup is decided.
- Sealing the work area and covering the vents and returns.
- A HEPA vacuum collecting dust at the machine, where it is generated.
- Sanding in passes from coarse to fine, with edger and hand work at the perimeter.
- Wiping and checking the surfaces before the containment comes down.
- Telling you before the job that some fine dust will settle for a day or two.
Not included, or quoted separately
- A sanding job that leaves nothing to wipe. Extraction captures most of the dust, and fine particles still escape.
- Lead abatement. The lead rule controls dust from our own work. It does not remove lead paint from the house.
- Dust from other trades. Extraction handles what our machines produce, not drywall or demolition dust already in the house.
- A firm price before we have seen the room and the trim.
What changes the cost of dustless floor sanding
The price is set after we see the house. The age of the house, the painted trim at the floor line and the number of openings to seal move it most, because they decide how much setup the job requires.
| What changes it | How it moves the price | Example |
|---|---|---|
| Age of the house | Pre-1978 housing brings the federal lead rule into the setup wherever painted surfaces are disturbed, and that setup takes longer. | A 1925 twin is treated as covered by the rule unless lead has been ruled out by an approved determination. |
| Painted trim at the floor | The edger works against baseboard, shoe molding and door casings. Painted trim there decides whether the rule applies to the job. | A door casing carrying many layers of old paint is a different job than clear-finished trim in a newer house. |
| Openings to seal | Every doorway, vent and return in the work area has to be closed off. Open plans take more material and more time. | A bedroom with one door seals quickly. A living room open to the kitchen and the stair does not. |
| Floor area | More floor is more time on the machines with the extraction running, and more surface to wipe and check at the end. | A whole first floor is quoted differently than one bedroom, even when the containment is the same kind. |
| Condition of the old coating | A heavy old coating or cupped boards need more work at the coarse grit, which means more dust produced and more machine time. | A floor carrying several old layers of finish takes longer to cut through than one refinished recently. |
What to ask a contractor about dustless floor sanding
The word dustless is on a lot of trucks and it describes very different equipment. These six questions separate a vacuum connected to the sander from a shop vacuum used at the end of the day.
Is the vacuum connected to the sander while it runs?
Extraction means dust is collected where it is made. A contractor who sands with a bag on the machine and vacuums afterward is describing cleanup, not extraction.
Does the edger have extraction too?
The edger is the machine that works against the painted trim. If only the big sander is connected, the dust that matters most in an old house is the dust left uncollected.
Is the vacuum HEPA filtered?
The federal lead rule names a HEPA vacuum for this work. An ordinary shop vacuum catches the chips and blows the finest dust back out through its exhaust.
How much dust should I expect after you leave?
A good answer is some, settling for a day or two, with the work area wiped before the barriers come down. An answer of none is the complaint this trade is known for.
How do you seal the room, and what happens to the vents?
Listen for sealed doorways and covered vents and returns. A contractor who leaves a return open in the work area is letting the heating system spread the dust.
My house predates 1978. Which rule are you working under?
The answer is the EPA lead rule, 40 CFR 745.85, and a contractor who works under it will ask about the painted trim. Not knowing the rule exists is the bad answer.
Why homeowners hire Deco Hardwood Floor
Deco Hardwood Floor is owner operated: the person who quotes dustless floor sanding is the person responsible for it, and the material comes with the labor in one number.
Material and labor in one number
We buy the flooring direct from the distributor and pass the store price through, so you are not sourcing wood on your own between quotes.
Samples come to your house
Samples and larger offcuts come to you, so the color gets chosen in your own light instead of under a showroom lamp.
Stairs and railings built in house
Treads, risers, handrails and newel posts are drawn and built by our own crew. Most flooring crews subcontract stair work or decline it.
The owner quotes the job
The person who measures your floor is the person responsible for the work. There is no salesperson in between.
Measured before it is promised
Remaining thickness is measured at the edge of a board before we say a floor can be sanded, and no price is firm before we have seen the room.
Told straight, including the limits
Vacuum extraction catches most of the sanding dust and not all of it. We tell you that before the job instead of after.
More about who we are and what we will not claim on the About Deco Hardwood Floor page.
Questions about dustless floor sanding
Is dustless sanding really dust free?
No, and nobody's is. Vacuum extraction at the machine captures most of what is produced. Fine dust still escapes and settles for a day or two after the machines stop.
Does it cost more than regular sanding?
The equipment and the setup take longer, and in a pre-1978 home the containment is not optional anyway. We quote the job with the setup the house actually requires.
My house is from 1925. Does the lead rule automatically apply?
The rule treats pre-1978 housing as covered unless lead has been ruled out by an approved determination. Age is the trigger, not a positive test. Whether your specific job disturbs painted surfaces is a separate question and gets answered by looking.
Can I stay in the house during sanding?
Usually, though not in the rooms being worked. The containment exists to keep the rest of the house out of it.
Dustless sanding or regular sanding: what is the difference?
The floor is sanded the same way. The difference is where the dust goes. In regular sanding it lands in a cloth bag on the machine, and the finest part passes through the bag into the room. In dustless floor sanding a hose carries it from the machine to a HEPA vacuum, and the work area is sealed. Grits, passes and edger work do not change.
Is dustless floor sanding worth it?
Yes, in any house where people are living during the work, and in a pre-1978 house with painted trim it is not a choice. Dustless floor sanding does not leave a clean house, but the difference from a bagged sander is obvious in the room and in the cleanup. Deco Hardwood Floor quotes the job with the setup the house requires, not as an optional extra.
How long does the fine dust keep settling after sanding?
For a day or two after the machines stop. Dustless floor sanding captures most of what the sander produces, and the lightest particles stay in the air long enough to travel before they land. Plan to wipe horizontal surfaces near the work area once the settling is over. It is also worth looking at the furnace filter if the heating or cooling ran during the job.
Is sanding dust dangerous for children and pets?
It can be, which is why they stay out of the work area until the cleanup is done. Wood and finish dust irritates lungs and eyes. The serious case is a house built before 1978, where the edger can disturb lead paint on the trim. Dustless floor sanding, with containment and a HEPA vacuum at the machine, is the setup the federal lead rule describes for that work.
What should I do before a dustless floor sanding job starts?
Empty the rooms being sanded, closets included, and decide which rooms you will live in. For dustless floor sanding the work area gets sealed, so anything you need from it has to come out first. Cover or put away open shelves in the rooms next door if you would rather not wipe them. Tell Deco Hardwood Floor the age of the house when you ask for the estimate.
What can go wrong with dustless floor sanding?
The most common failure is the promise, not the equipment. A contractor sells a clean house and the customer finds dust on the shelves. On the equipment side, a full vacuum or a clogged filter loses suction, an edger without a hose puts dust straight into the room, and an uncovered return spreads it through the house. Dustless floor sanding works when every one of those is checked.
Dustless Sanding by Philadelphia neighborhood
Dustless Sanding in the towns around Philadelphia
- Radnor, PA
- Wayne, PA
- Malvern, PA
- West Chester, PA
- Ardmore, PA
- Bryn Mawr, PA
- Villanova, PA
- Newtown, PA
- Media, PA
- Broomall, PA
- Upper Darby, PA
- King of Prussia, PA
- Conshohocken, PA
- Willow Grove, PA
- Horsham, PA
- Harleysville, PA
- Montgomeryville, PA
- Warminster, PA
- Doylestown, PA
- Cherry Hill, NJ
- Robbinsville, NJ
- Hamilton, NJ
- West Windsor, NJ
- Pike Creek, DE
- Hockessin, DE
- Greenville, DE
- Wilmington, DE
Dustless Sanding terms, defined
- vacuum extraction
- A method of dust control in which a vacuum is connected to the sander and collects dust at the point where it is made, instead of after it has spread.
- containment
- The barrier that separates the work area from the rest of the house: sealed doorways and covered vents and returns. On a machine, the shroud that surrounds the abrasive.
- HEPA
- A filter standard, short for high efficiency particulate air. A HEPA filter captures 99.97 percent of particles 0.3 microns in size, and the federal lead rule names it for the vacuum.
- fine dust
- The lightest particles a sander produces, small enough to stay in the air and get past any collection system. They settle on surfaces for a day or two after the machines stop.
The rules behind this work
From the blog
How long refinishing takes, and when you can walk on it
Sanding is the predictable part. The calendar is set by the finish, and walkable is not the same day as cured.How to clean hardwood floors without damaging the finish
You are cleaning a coating, not a piece of wood. Most damage we are called to fix was done with a mop and a product that promised shine.
Related work
Send a photo and we will tell you what you are looking at
Dustless Floor Sanding starts with someone reading the house. We quote every job ourselves, with no salesperson in between, and a photo of the floor gets you a straight answer faster than a form does.
