How does steam carpet cleaning work?
“Steam cleaning” is the common name for hot water extraction. It isn’t really steam. Our truck-mounted unit heats water and mixes in cleaning solution, and a wand sprays it deep into the carpet pile. The same wand pulls the water back out with strong suction from the truck, carrying the loosened soil with it.
Because the machine sits on the truck, only the hoses come inside. The heat and suction come from the truck, not a small portable unit, and that’s what gets deep soil out of the base of the fibers.
How does low-moisture (VLM) carpet cleaning work?
Low-moisture cleaning, also called VLM (very low moisture) or encapsulation, uses far less water. We spray a light coat of cleaning solution on the carpet and work it in with a machine that agitates the fibers. The solution surrounds the soil and lets it release from the carpet. As it dries, that soil is held in the solution and comes up with vacuuming.
Since so little water goes in, very little has to come back out, and the carpet dries much faster.
Which carpet cleaning method dries faster?
Low-moisture, by a wide margin:
- Low-moisture: about 30 minutes to 2 hours
- Steam: about 1 to 3 hours
Humidity, airflow and carpet thickness move those numbers. A thick plush carpet on a muggy July afternoon takes longer than a thin office carpet with the air running. If your schedule is tight, tell us. Fast turnaround is one of the main reasons to pick low-moisture.
Is steam cleaning better for pet urine and heavy soil?
Yes. Urine doesn’t stay on top of the carpet. It runs down into the backing and pad, and a surface method can’t reach that. Steam flushes the area and pulls the contamination back out, so it’s our pick for urine every time. More on that on our pet urine and odor removal page.
The same goes for heavy soil: carpet that hasn’t been cleaned in years, greasy traffic lanes by a kitchen or garage door, or a move-out with ground-in dirt. Steam’s flushing and suction remove more of that bulk soil than a low-moisture pass can.
When is low-moisture cleaning the right choice?
- Routine maintenance on carpet that’s cleaned regularly and isn’t heavily soiled.
- Fast turnaround, when you need the room back the same afternoon.
- Businesses that can’t close a space for long. See commercial carpet cleaning.
- Glue-down commercial carpet, where too much water can work into the adhesive.
- Carpet that’s sensitive to moisture, like wool, where less water means less risk.
Which method is right for wool, nylon, polyester, olefin and berber?
- Wool: wool-safe solutions and the least moisture the job allows. Wool can shrink, brown or bleed if it’s over-wet or cleaned too hot, so low-moisture is often the starting point.
- Nylon: tough and handles either method well. We choose by how dirty it is.
- Polyester: cleans well both ways. It tends to hold oily soil, so heavily used polyester often needs steam.
- Olefin: resists water-based stains but attracts oily soil. Either method can work; heavy soil gets steam.
- Berber: the loops can wick spots back up if the carpet is over-wet, so we keep the moisture under control whichever method we use.
- Commercial glue-down: low-moisture for regular cleaning, with steam saved for heavy soil and careful drying.
Does carpet get dirty faster after cleaning?
It can, if the cleaning leaves residue behind. Sticky solution left in the fibers grabs dirt from every shoe that crosses it. That’s a cleaning problem, not a method problem.
With steam, we rinse and extract thoroughly so the solution comes back out with the soil. With low-moisture, the solution is made to dry and vacuum out instead of staying tacky. Either way, vacuuming in the days after a cleaning helps pull up whatever loosened soil is left.
How do we decide which method to use on your carpet?
On every job, we look at four things before we pick:
- The fiber and how the carpet is built.
- How dirty it is, and whether there’s urine or other contamination.
- How quickly you need the room back.
- What’s been done to it before, like years of spot cleaning with store-bought sprays.
Plenty of homes get both in one visit: steam for the family room with the dog spots, low-moisture for the guest room that barely gets used. We tell you what we’re using where and why, and we confirm the price before we start. Starting prices are on the pricing page.