How often should carpets be professionally cleaned, and in what season?

Updated November 10, 2026 · KeystoneProGuide editorial team

How often should carpet be professionally cleaned?

The only published interval comes from the carpet industry: the Carpet and Rug Institute, the manufacturers' trade association, recommends a professional deep cleaning every 12 to 18 months, and more often if necessary in homes with pets. None of the government or health sources consulted for these guides sets a cleaning interval for carpet. What they do set is a vacuuming routine, and they are specific about the events that call for prompt action.

Does your warranty set a schedule?

It may, and that schedule is the one with consequences. The institute says carpet should be cleaned the way the manufacturer specifies, approximately every 12 to 18 months, and its residential standard says every manufacturer requires proper maintenance and that ignoring the maker's guidelines may void your warranty. On its hiring page it tells homeowners to check the warranty for specific requirements.

The Federal Trade Commission says to ask whether a warranty covers only problems that arise after you maintain the product according to the directions, and to keep the warranty and the receipt. For carpet, that means reading the maintenance section when the carpet is installed, putting the stated interval in your calendar and keeping the receipt from each professional cleaning.

How often should you vacuum?

This is where the authorities agree on a number: at least weekly.

The U.S. Environmental Protection Agency's asthma guidance says to vacuum carpets and furniture every week, with a HEPA-filter vacuum on carpet and fabric furniture.
The American Lung Association says that if you keep carpet you should vacuum it weekly with a HEPA vacuum, though its first advice for people allergic to dust mites is to replace carpet with hard flooring.
The Asthma and Allergy Foundation of America says to vacuum once or twice a week, and warns that poor-quality vacuums can put dust back into the air.
The institute's care page says at least once a week, more in busy areas, and its FAQ says twice a week, at least for high-traffic areas.

In an older home, the EPA's lead guidance adds weekly cleaning to keep down dust that may contain lead, and asks for a HEPA vacuum where paint chips or dust are visible.

Do pets or allergies change the interval?

They change the routine more than the calendar. For homes with pets, the Carpet and Rug Institute keeps its 12 to 18 month interval but adds "or more frequently if necessary", and its practical advice is about the days in between: vacuum more often to pick up hair and dander, clean accidents as soon as they happen, and use a small hand extractor for quick cleanups, which it says does not replace periodic deep cleaning.

The Asthma and Allergy Foundation of America, writing for people allergic to their pets, would rather the carpet went: it suggests removing it if possible, and otherwise choosing low-pile carpet and having it steam cleaned often, without putting a number on "often". Neither body sets a number of professional cleanings a year.

Which events call for cleaning sooner?

A spill or pet accident. The institute's first rule for spots is to act quickly, before the spill sets. Cleaning it yourself or hiring gives its method.
Water on the carpet. The EPA says to dry water-damaged areas and items within 24 to 48 hours to prevent mold. This is drying, not scheduled cleaning, and it cannot wait.
A pet leaving the home. The EPA says that when an animal is removed, the floors, walls, carpets and upholstered furniture should be thoroughly cleaned.
New carpet that still smells. The institute says that if two weeks of ventilating and vacuuming have not cleared new-carpet odor, a hot water extraction cleaning may help.

For the signs that point to moisture or mold rather than dirt, see signs your carpet needs cleaning.

Is there a best time of year?

No authority names a season, but the weather matters for drying, and drying matters for mold.

The institute's do-it-yourself guidance says to open windows only when the weather is sunny with low humidity and dew point, to run the air conditioning in warm weather or the heat in cold weather at a moderate setting to help remove moisture, and to never close up a room with wet carpet. It says the carpet should be dry within 12 hours.

The EPA makes the same point about humid weather in its flood guidance: very humid, warm outside air slows drying, and on such days it suggests closing doors and windows and using fans, dehumidifiers and air conditioning instead. Its mold guidance asks for indoor humidity below 60 percent, ideally 30 to 50 percent, and the Lung Association asks for below 50 percent to keep dust mites down. If the cleaning falls on a humid day, ask the company how it will dry the carpet.

Demand can nudge the price. Forbes Home says spring is the most common season for carpet cleaning and that hiring then can cost more because schedules are full, though it calls the increase usually minimal. Prices for each part of a job are in the cost guide.

Sources

Cleaning and Maintenance, The Carpet and Rug Institute
Allergic to Your Pet? Learn About Dog and Cat Allergies, Asthma and Allergy Foundation of America
Hire a Carpet Cleaning Professional, The Carpet and Rug Institute
Frequently Asked Questions, The Carpet and Rug Institute
CRI 205 Residential Carpet Standard: Residential Warranties, The Carpet and Rug Institute
CRI 205 Residential Carpet Standard: DIY Cleaning, The Carpet and Rug Institute
Warranties, Federal Trade Commission
Asthma Triggers: Gain Control, U.S. Environmental Protection Agency
Dust Mites, American Lung Association
Control Indoor Allergens to Improve Indoor Air Quality, Asthma and Allergy Foundation of America
Flood Cleanup to Protect Indoor Air and Your Health, U.S. Environmental Protection Agency
A Brief Guide to Mold, Moisture and Your Home, U.S. Environmental Protection Agency
Reduce the Risk of Lead Exposure at Home, U.S. Environmental Protection Agency
How Much Does Carpet Cleaning Cost?, Forbes Home