Good care at home keeps any rug looking better for longer, and a lot of it costs nothing more than a vacuum and a little attention. But some of the deep cleaning methods that work on synthetic carpet can damage wool, silk and Persian rugs. These are honest answers to the at-home cleaning questions people ask most, including when it is time to call a professional. For handmade rugs, our hand-wash process explains what a professional wash involves.

On this page: Deep cleaning at home · Machines and products · After cleaning

Deep cleaning at home

How do I deep clean my carpet myself?

For wall-to-wall carpet or a synthetic rug, this approach works well:

1. Vacuum slowly, in two directions, to lift as much dry soil as possible. This matters more than any product.
2. Pre-treat spots and traffic lanes with a carpet pre-spray and give it a few minutes to work.
3. Clean with a rented or owned extractor, using only a small amount of shampoo.
4. Go over it again with clean water only, to rinse the detergent out.
5. Extract as much water as you can and speed up drying with fans and open windows.

Please do not use this method on handmade wool, silk or Persian rugs; extraction machines and hot water can make their dyes run. See what you can safely do with a Persian rug.

What is the best way to deep clean my carpets?

For wall-to-wall carpet, hot water extraction followed by a thorough clean-water rinse and fast drying gives the deepest clean. A professional truck-mounted machine is more powerful than a rental, but a rental used carefully, with plenty of rinsing, can do a good job.

For area rugs, the most thorough deep clean is washing the whole rug, including the foundation, in a rug-washing facility. That is where most of the soil hides, and it is the part on-site cleaning cannot reach.

What cleans carpet really well?

Getting the dry soil out first, then a cleaner that is rinsed out completely. Most of the dirt in carpets and rugs is dry grit and dust, not sticky stains, so slow, thorough vacuuming (and, for rugs, professional dusting) does more than any chemical.

The other half is rinsing. Detergent left behind in the fibers acts like a magnet for new dirt, which is why a carpet cleaned with too much soap can look worse a month later than it did before.

How do you clean heavily soiled carpet without a machine?

It can be done, with patience. Vacuum repeatedly from both directions; it may take several passes. Then sprinkle a dry carpet-cleaning powder, brush it in with a stiff broom, leave it for the time on the pack and vacuum it out. For stains, use a mild detergent solution on a clean cloth, blot, then rinse with plain water and blot dry.

If it is a heavily soiled area rug rather than fitted carpet, it is far better washed than scrubbed in place. The soil has worked down into the foundation, and scrubbing the surface mostly spreads it around.

What is the best way to clean a filthy carpet?

Work from dry to wet. Remove as much dry soil as you can with repeated slow vacuuming, pre-treat the traffic areas and stains, then extract with plenty of clean water and dry the carpet quickly. Expect it to need two passes if it has not been cleaned for years.

If it is an area rug rather than wall-to-wall carpet, a full wash in a rug-cleaning facility will remove far more soil than any surface cleaning, especially from the foundation.

Can baking soda clean a rug?

Baking soda is good at freshening a rug and absorbing light odors. Sprinkle it evenly, leave it for a few hours or overnight, then vacuum thoroughly. It is cheap and safe on most rugs.

It will not remove embedded soil or real stains, though, and on dark wool rugs the white powder can be hard to vacuum out completely. It also cannot fix pet urine odor, because the source sits in the foundation; that has to be washed out. Why pet urine odor can come back explains why.

Machines and products

What is the price of a rug cleaning machine?

Prices vary by model and retailer, from compact spot cleaners to full-size upright carpet cleaners, and rental machines are available at many hardware stores and supermarkets. If you clean only once or twice a year, renting is usually the economical choice; if you have pets or children and clean spots often, a small machine of your own is convenient.

Whichever you use, keep it to synthetic carpet and rugs. These machines are not designed for handmade wool, silk or Persian rugs.

What is the best carpet cleaner at a reasonable price?

Rather than a particular brand, look for the features that make the biggest difference: strong suction, separate clean and dirty water tanks, a rinse or water-only setting, and a hose with an upholstery tool for spot work. Suction and rinsing matter much more than brush power, because what you leave in the carpet decides how quickly it gets dirty again.

Use a low-residue detergent, and use less than the label suggests. For a valuable handmade rug, professional washing is better value than any machine.

Which rug cleaner is the best?

It depends on what the rug is made of:

• Synthetic rugs: a low-residue, pH-neutral rug shampoo, used sparingly and rinsed out.
• Wool rugs: a wool-safe cleaner, and only for spot cleaning at home.
• Silk, viscose and antique rugs: nothing beyond blotting with cool water. These need fiber-specific professional cleaning; viscose in particular can yellow and stiffen if it is wetted at home.

Whatever the product, test it on a hidden corner first.

What is the best carpet cleaner for very dirty carpets?

Very dirty carpet needs more extraction and more rinsing, not a stronger chemical. Vacuum thoroughly first, then use a professional-grade or rental extractor, and keep rinsing with clean water until the water you recover runs noticeably clearer. Harsh chemicals tend to leave residue and can damage fibers and dyes.

For very dirty area rugs, a full wash in a rug facility is much more effective than any machine on the floor, because it washes out the foundation as well as the pile.

Is Bissell or Rug Doctor better?

Both make capable carpet cleaners and the right one depends on how you will use it. Bissell is best known for machines you buy and keep at home, which is handy for frequent spot cleaning, while Rug Doctor is best known for its rental machines, which make sense for an occasional whole-room clean.

Either way, use less shampoo than you think and rinse with clean water. Neither is suitable for handmade wool, silk or Persian rugs.

Is Dawn soap good for carpet?

In small amounts, diluted dish soap can spot clean synthetic carpet, and it is something most people already have. The problem is quantity: too much leaves a residue that attracts dirt, so the spot reappears darker after a few weeks. Use just a few drops in a cup of water, then rinse with plain water and blot dry.

On wool, silk and Persian rugs, avoid it; here is why.

After cleaning

Why does my carpet look dirtier after cleaning?

Usually for one of two reasons. The first is detergent residue: soap left in the fibers is sticky, so it catches new dirt quickly and the carpet looks dirty again within days or weeks. The second is wicking: soil deep in the backing or foundation travels up the fibers as they dry and leaves dark spots on the surface.

Both are prevented the same way: use less detergent, rinse with clean water, and dry the carpet quickly. With area rugs, washing the whole rug removes the deep soil that causes wicking in the first place.

Do carpets get dirtier after cleaning?

They should not, but they can resoil faster if the cleaning left soap behind. A carpet that has been properly rinsed with clean water and dried quickly stays clean longer than one that was never cleaned.

That is also why professionally washed rugs are rinsed until the water runs clear: no residue, nothing to attract new soil.

What not to do after carpet cleaning?

A few things make a big difference while the carpet or rug is drying:

• Do not walk on it in shoes or put furniture back until it is completely dry; furniture legs can leave rust or wood stain marks on damp fibers.
• Do not cover it with plastic or put a rug back over a damp floor.
• Keep pets off until it is dry.
• Do not shut the room up; keep air moving with fans or open windows.

Moisture left in a rug’s foundation can cause odors, mildew and dye problems, so drying is part of the cleaning, not an afterthought.

Should carpet be vacuumed after cleaning?

Yes, once it is completely dry. A light vacuum lifts the pile back up and removes any soil that wicked to the surface as it dried.

On handmade rugs, use suction only without a rotating brush, and vacuum in the direction of the pile. To find the direction, run your hand along the rug: smooth one way, rough the other.

What is carpet ghosting?

Ghosting, also called filtration soiling, is the grey or black lines that appear along baseboards, under doors and around air vents. Air moving through the carpet at those points leaves fine particles such as soot and dust in the fibers, so the carpet acts like an air filter.

It does not come out with normal cleaning and needs specialist spot treatment. Vacuuming along the edges regularly with a crevice tool, and keeping candles and fireplace soot to a minimum, slow it down.

Can vacuuming too much ruin carpet?

No. Regular vacuuming does not ruin carpet; dry grit does. Vacuuming often is one of the best things you can do for any rug.

The risk is the vacuum, not how often you use it. A rotating beater bar can fuzz the pile of a handmade rug and catch and tear the fringe. On wool and silk rugs, use suction only, turn the brush off if your vacuum allows it, and do not run over the fringe; vacuum up to it and stop.

Related Zoom Rugs pages

These pages go deeper into the topics above:

• Pet urine in rugs: why odor can return
• Why dry soil removal comes before washing
• How professional cleaning protects wool fibers
• Pet stains and odors in Menlo Park rugs
• Seasonal rug care

More questions answered

• Moth-damaged rug repair: questions answered
• Rug repair and restoration: questions answered
• Persian rug cleaning: questions answered
• Area rug cleaning costs: questions answered

Our services

• Rug repair and restoration services
• Hand-wash rug cleaning process
• Rug cleaning and repair pricing
• White-glove pickup and delivery
• All Zoom Rugs FAQs

For professional rug cleaning, repair or restoration in the San Francisco Bay Area, contact Zoom Rugs Services: call 408-472-6086, email info@zoomrugs.com, or send photos for an estimate.