A hand-knotted rug is washed, not shampooed. The process is closer to laundering a delicate garment than to cleaning wall-to-wall carpet: most of the soil is removed dry before any water is used, the dyes are tested before the rug is wet, the wash is matched to the fibre, and the drying is controlled because that is when most damage happens. Below is what actually happens to a rug in our Houston workshop, and why each step is in that order.
The two things most people get wrong.
Most soil is dry, not wet
The majority of what is in a rug is dry grit sitting at the base of the pile, where it cuts fibres every time the rug is walked on. Add water first and you turn that grit into mud, then push it deeper.
Steam is a carpet method
Hot-water extraction is designed for synthetic carpet glued to a floor. On a hand-knotted rug it wets the face, leaves the foundation damp, sets stains with heat and risks dye bleed. It is the wrong tool, not simply a cheaper one.
Wool is a protein
Wool likes mild acidity and dislikes alkalinity and heat. Detergents built for synthetic carpet are usually alkaline, which strips lanolin, dulls the pile and weakens the fibre over time.
Dyes are not all stable
Natural and older dyes can move when wet, particularly reds. Testing before washing is what prevents a rug coming back with a pink halo around the medallion.
Drying is when damage happens
Wicking, browning and mildew are drying failures, not washing ones. Speed, airflow and keeping the rug flat matter as much as anything that happens in the water.
Every fibre washes differently
Wool, silk, cotton and viscose each behave differently wet. A single method applied to all of them is how rugs get ruined by people who mean well.
What we test before a rug ever gets wet.
The fibres, and what each one needs.
Wet right now?
Everything below assumes a rug that is dirty, not one that is soaked. A wet rug is a different problem measured in hours, not days — see water-damage rescue.
Four steps, all by hand, all in Houston.
Inspect, identify and test. We identify the fibre, check the foundation front and back, note existing damage and previous repairs, and test the dyes for colourfastness. This is also when we tell you what will not come out, before any work begins.
Dust it thoroughly. Dry soil removal comes first and takes the longest. A heavily used rug can hold pounds of grit that no amount of surface vacuuming reaches. Everything removed dry is grit that never becomes mud.
Wash by hand, matched to the fibre. Immersion washing with a solution appropriate to the material and its dyes, worked by hand rather than by machine, then rinsed until the water runs clear. Rinsing is what separates washing from merely wetting.
Dry flat and fast, then finish. Controlled airflow, flat drying, and constant monitoring so nothing wicks or browns as it dries. The pile is then groomed, the fringe finished, and the rug inspected again before it goes home.
Why we tell you all this: because you cannot see any of it once the rug is back on your floor. A rug that has been surface-cleaned looks identical on day one to a rug that has been properly washed, and the difference only shows up months later as returning odour, a dull face or a foundation going brittle. The restoration work we do most often is on rugs that were cleaned by someone using the wrong method.
Common questions
How is rug washing different from carpet cleaning?
Carpet cleaning is designed for synthetic fibre glued to a floor and relies on hot-water extraction. A hand-knotted rug is a textile with natural fibres and dyes that is washed and rinsed through, then dried under control. Using a carpet method on a hand-knotted rug wets the face, leaves the base damp and risks setting stains and moving dye.
Why does dusting matter so much?
Because most of what is in a rug is dry grit sitting at the base of the pile, and that grit cuts the fibres every time someone walks on it. Water applied before the grit is removed turns it to mud and drives it deeper. Dusting is the least visible step and the one that does the most good.
Can I steam clean a hand-knotted rug?
We would not. Steam and hot-water extraction are carpet methods: the heat can set stains and move dye, and they leave the foundation damp, which is how musty odour and browning start. If a rug has already been steam cleaned it can usually still be washed properly.
How often should a rug be washed?
Every three to five years for a rug in normal use, sooner for a hallway or a home with pets, and immediately after any flood or large accident. Between washes, regular vacuuming without a beater bar and rotating the rug twice a year does most of the work. See our rug care guide.
Will washing fade or shrink my rug?
Not when the dyes are tested first and the wash is matched to the fibre. Fading and shrinkage come from heat, alkalinity and uncontrolled drying, which is precisely what testing and flat controlled drying exist to prevent.
How long does it take?
Usually several days rather than hours, because dusting and controlled drying cannot be rushed without risking the rug. Anyone promising a same-day wash on a hand-knotted rug is not drying it properly.