How Often Should Carpets Be Professionally Cleaned?

How often should carpets be professionally cleaned?

The Carpet and Rug Institute advises professionally deep cleaning home carpet every 12 to 18 months, and Shaw Floors advises professional hot water extraction every 6 to 18 months depending on traffic. A home with pets, young children or someone with allergies belongs at the short end, around every 6 to 12 months. A quiet home with one or two adults can go the full 18 months. Weekly vacuuming in between is what makes either interval work. Klein's cleans carpets across Hamilton and Halton.

By Klein's Cleaning and Maintenance, Waterdown, Ontario. Last updated September 26, 2026.

What do the carpet makers and the industry say?

Professional carpet cleaning intervals, from the source
Source	What it says
Carpet and Rug Institute	"Professionally deep clean your carpets every 12 to 18 months to remove embedded dirt and grime."
Shaw Floors	"Schedule a professional hot water extraction (steam cleaning) anywhere from 6-18 months, depending on traffic."

Where does my home fit in that range?

Placing a home in the 6 to 18 month range (Klein's reading of the sources above)
Home	Suggested interval
Dogs, or cats with accidents	Every 6 to 12 months, plus spot treatment as it happens
Young children	Every 6 to 12 months
Asthma or allergies in the home	Every 6 to 12 months
Busy family home, no pets	About every 12 months
One or two adults, shoes off at the door	Every 12 to 18 months

Stairs, hallways and the carpet just inside the door wear first in every home. If the whole house is not due yet, those areas often are.

Does the warranty care how often I clean?

It can. The CRI notes that its certified cleaning products and services are "recommended and sometimes required by the manufacturer to ensure results and warranty protection." Read the care section of your own carpet's warranty, and keep the receipt from each professional clean.

What should happen between professional cleans?

Vacuuming does most of the work. The CRI's first step is to vacuum high-traffic areas frequently and everywhere else on a schedule; Health Canada, writing about dust mites, advises vacuuming carpets and soft furnishings frequently, ideally with a HEPA-filter vacuum. Deal with spills straight away by blotting rather than rubbing, and put mats at the doors, which the CRI calls stopping dirt at the door.

Why does carpet look dirty again soon after some cleanings?

Usually because cleaning solution was left in the pile. Residue is sticky, and it grabs the next soil that walks over it. That is why hot water extraction rinses and vacuums the solution back out rather than leaving it to dry. See how Klein's does it on the home carpet cleaning page; for workplaces, commercial carpet cleaning plans the cleaning by traffic zone.