Carpet Cleaning Methods Explained
Hot Water Extraction ("Steam Cleaning")
The most common professional method. Carpet is pre-vacuumed and pre-sprayed with a cleaning agent that breaks down oily and particulate soil. A wand injects heated water, agitates the fibers, and immediately extracts water and dissolved soil. Best all-around results; typical dry time a few hours. See steam vs. low-moisture.
Low-Moisture Cleaning
Uses much less water. Good when fast dry time is needed — commercial spaces that can't close, condos on upper floors, or lightly soiled residential rooms between deep cleanings. Slightly less aggressive on heavy soil than hot water extraction.
Encapsulation
A cleaning agent is worked into the fibers with a counter-rotating brush; as it dries it crystallizes around soil particles, which are then vacuumed away. Popular for commercial maintenance cleaning on cut-pile carpet in office and retail settings. Not a substitute for periodic deep extraction.
Bonnet Cleaning
A rotary machine spins an absorbent pad over pre-sprayed carpet. Common in hotel corridor maintenance because it's fast. Only cleans the top of the fiber — not a whole-home solution for residential customers.
Shampooing
The oldest method. Heavy foaming detergent is worked in with a machine, then vacuumed after drying. Largely replaced by hot water extraction and encapsulation because shampoo residue attracts soil quickly.
Dry Compound
An absorbent compound is spread and worked into the fibers, then vacuumed out. Useful on moisture-sensitive natural fibers and situations where the space must stay open. Not commonly used for residential deep cleans.
Which Method for Which Job
- Annual whole-home deep clean: hot water extraction.
- Pet stains and odors: hot water extraction with enzyme pre-treatment. See pet stain and odor removal.
- Commercial maintenance: encapsulation between periodic extraction. See commercial maintenance plans.
- Fast turnaround / must stay open: low-moisture or encapsulation.
