Outdoor cushions make a patio more comfortable all summer. But when fall arrives in Tacoma, Gig Harbor, and Puyallup, they can also become very good at holding onto something homeowners would rather leave outside: moisture.
Putting cushions away while they are dirty or even slightly damp can give mildew, odors, and stains months to settle into the fabric. A little preparation before winter storage can make a big difference when you bring everything back out next spring.
Here’s how to clean outdoor cushions before storing them, when DIY cleaning is usually enough, and when professional cleaning may be the better choice for protecting your patio furniture.
Why Outdoor Cushions Need Extra Care Before Winter
South Sound weather is not especially forgiving to patio cushions.
As temperatures cool and rainy days become more frequent, cushions may stay damp longer than they did during summer. Dirt, pollen, food residue, and organic debris can also remain trapped in the fabric and filling.
If those cushions are moved directly into a garage or shed, the combination of moisture and limited airflow can contribute to:
- Mildew on outdoor cushions
- Musty odors
- Stains that become harder to remove
- Premature fabric deterioration
- Moisture reaching the cushion filling
- Insects or pests taking an interest in stored furniture
That is why cleaning is an important part of winter storage, rather than something to save for spring.
The goal is simple: remove as much dirt and residue as possible, then make sure every cushion is completely dry before it is put away.
How to Clean Outdoor Cushions Step by Step
There is no single cleaning method that is right for every patio cushion. Fabrics, dyes, construction, and cushion fillings vary, so start by finding out what you are working with.
Check the care label and fabric type first
Before applying water or cleaner, check the manufacturer’s care instructions.
Common outdoor cushion materials include acrylic fabrics such as Sunbrella, synthetic blends, and canvas-style materials. Some cushion covers can be removed, while others are permanently attached to the filling.
The care label may tell you:
- Whether the cover can be removed
- Whether machine washing is permitted
- What type of cleaner is recommended
- Whether bleach or other cleaning products should be avoided
- How the cushion should be dried
Following those instructions matters, particularly for specialty fabrics or cushions with finishes designed to repel water and stains.
Remove loose dirt before wet cleaning
Start dry.
Brush away leaves, crumbs, pet hair, pollen, and surface debris. A vacuum with an upholstery attachment can also help remove material caught along seams, piping, and tufts.
This step may seem minor, but wetting loose soil can turn it into muddy residue that becomes more difficult to remove.
Decide whether you need spot cleaning or a full cleaning
A cushion with one small spill may only need targeted cleaning. A cushion that has spent an entire season outdoors may benefit from a more thorough treatment.
For minor spots, follow the fabric manufacturer’s instructions and use an appropriate mild cleaning solution.
For a larger cleaning job, work methodically across the cushion rather than soaking one area heavily. Give extra attention to seams and areas that come into frequent contact with hands, food, sunscreen, pets, or landscaping debris.
Avoid assuming that more water or stronger cleaner will produce a better result. Over-wetting can make drying much more difficult, especially when moisture reaches deep into the cushion.
How to clean Sunbrella cushions
Sunbrella and other performance fabrics are popular outdoors because they are designed to handle demanding conditions, but they still require proper care.
If you are cleaning Sunbrella cushions yourself, follow the current care instructions provided for the specific fabric. Remove loose debris first, use only cleaning products that are appropriate for the material, and rinse or remove cleaning residue as directed.
Pay special attention to the cushion construction too. A removable Sunbrella cover may have different care requirements than a complete cushion containing foam or another filling.
And remember that stain resistance does not mean stain-proof. Dirt and organic material left on the surface can still create problems during a long period of winter storage.
Dealing with mildew on outdoor cushions
Mildew deserves extra attention because simply wiping away the visible marks may not solve the entire problem.
First, identify whether the fabric manufacturer provides specific mildew-cleaning instructions. Different materials tolerate different treatments.
If the affected area is small and superficial, manufacturer-approved cleaning may be enough. If you are dealing with widespread staining, persistent odor, repeated mildew growth, or contamination that appears to have reached the cushion filling, professional cleaning may be the safer choice.
This is also a good point to stop experimenting with increasingly aggressive DIY treatments. A product that removes discoloration can still damage fibers, alter color, or affect a protective finish.
What if the cushion covers do not come off?
You can still clean outdoor cushions without removable covers, but controlling moisture becomes even more important.
Rather than treating the cushion like a washable slipcover, clean the complete cushion according to its care instructions. Avoid unnecessarily saturating the interior, and allow plenty of time for moisture to escape from the filling.
For thick cushions, boxed cushions, or an entire patio set, professional cleaning can be particularly useful because cleaning the surface is only part of the challenge. The cushion also has to dry thoroughly enough to be stored safely.
Dry every cushion completely
This may be the most important part of the process.
A cushion can feel dry on the surface while moisture remains inside. Give cushions adequate drying time and good airflow before storage.
Do not rush this step because rain is arriving or because you want the patio cleared for the season. Trapping residual moisture for several months is exactly what you are trying to avoid.
How to Winterize Patio Furniture Cushions for Storage
Once your patio cushions are clean and fully dry, a few additional steps can help protect them through winter.
A fabric protectant may help repel moisture and stains when the product is appropriate for the material. Hammond Knoll includes fabric protectant as part of its professional outdoor cushion cleaning and winter storage service.
Then consider where and how the cushions will be stored.
Avoid wrapping damp cushions in airtight plastic. A moisture-resistant storage solution should still allow conditions inside the storage area to remain dry and properly ventilated.
Home storage may work well if you have a clean, dry garage or other protected area. For homeowners without enough space, off-site seasonal storage also keeps bulky cushions from taking over the garage all winter.
Hammond Knoll’s seasonal program allows customers to drop cushions off as the weather turns in fall, then pick them up by Memorial Day.
And while you are clearing the patio, look beyond the cushions. Outdoor rugs and patio umbrella canopies collect the same seasonal dirt and moisture and may benefit from cleaning before winter too.
DIY vs. Professional Outdoor Cushion Cleaning
Plenty of outdoor cushion cleaning can be handled at home.
If the cushions are lightly soiled, the care instructions are straightforward, and you have enough dry weather and space to let everything dry completely, DIY cleaning may be all you need.
Professional cushion cleaning becomes more useful when you are dealing with:
- Set-in stains
- Mildew or persistent odors
- Large or thick cushions
- Covers that cannot be removed
- Specialty or unfamiliar fabrics
- An entire patio set
- Fabric protectant that needs to be reapplied
- Limited space for cleaning and drying
- No good place to store cushions through winter
You also do not have to use professional storage to use professional cleaning.
Hammond Knoll offers a cleaning-only option for homeowners who would rather handle winter storage themselves. Typical turnaround is approximately one to two weeks.
If you would prefer to have both parts handled together, learn more about outdoor cushion cleaning and winter storage in Tacoma and the surrounding South Sound.
While You’re at It, Don’t Forget Your Indoor Upholstery
Fall is also when attention starts shifting from the patio back to the rooms where everyone will spend the next several months.
Once the windows close and family gatherings move indoors, you may suddenly notice what a summer’s worth of everyday use has done to the sofa, dining chairs, or favorite recliner.
As a general maintenance cycle, professional upholstery cleaning is often considered every 12 to 18 months, although households with children, pets, heavy use, or frequent spills may need attention sooner.
Indoor and outdoor cushions are not necessarily cleaned the same way. Fabric construction, filling, dyes, age, and intended use all affect how a piece should be treated. If you are unsure whether something belongs with the outdoor cushion cleaning or upholstery team, ask before applying a DIY cleaning product.
Outdoor Cushion Cleaning for Tacoma, Gig Harbor & Puyallup Homes
Hammond Knoll has been caring for rugs, furniture, and specialty textiles from its Tacoma location since 1939.
For homeowners throughout Tacoma, Gig Harbor, Puyallup, and the surrounding South Sound areas, seasonal outdoor cushion cleaning offers another way to protect the furnishings you already own.
Instead of finding space for a dirty stack of cushions in the garage, you can have them professionally cleaned, treated with fabric protectant, and stored for winter. Cleaning-only service is also available if you already have storage covered.
The same seasonal trip can include eligible outdoor rugs and umbrella canopies, making it easier to get the patio taken care of before South Sound weather settles in for the winter.
South Sound homeowners can save 10% on a regular area or Oriental rug cleaning when combining it with patio furniture cleaning and storage.
Frequently Asked Questions About Outdoor Cushion Cleaning
How much does it cost to clean and store patio cushions?
Pricing depends on the cushions and services needed. Contact Hammond Knoll at (253) 472-9686 for information about your patio set and current seasonal storage options.
Can you clean outdoor cushions that don’t have removable covers?
Yes. Outdoor cushions do not need removable covers to be professionally cleaned. The appropriate cleaning process depends on the fabric, cushion construction, condition, and care requirements.
What is the deadline for picking up cushions from winter storage?
There is no deadline to drop off cushions for Hammond Knoll’s winter storage program. We only ask that the cleaned cushions should be picked up by Memorial Day so they are ready for the outdoor season.
Should I take the covers off my cushions before bringing them in?
No, leave the covers on. Outdoor fabrics can shrink when they’re cleaned and dried apart from their inserts, which can leave a cover that no longer fits. Bringing in the whole cushion lets our team inspect it as one piece and clean it the right way for its fabric and construction.
Do you clean patio umbrellas and outdoor rugs too?
Hammond Knoll accepts patio rugs and umbrella canopies as part of its outdoor seasonal cleaning services. Furniture frames are generally not included, with the exception of eligible tilt-style umbrellas.
How often should indoor furniture upholstery be professionally cleaned?
A typical professional cleaning cycle is around 12 to 18 months, although the right schedule depends on how heavily the furniture is used, whether there are pets or children in the household, and the type of upholstery.
Get Your Patio Cushions Ready for Winter
A little work before storage can save you from opening the garage next spring to musty cushions, stubborn stains, or mildew that spent the winter getting comfortable.
Clean away the season’s dirt, give every cushion enough time to dry completely, and store it somewhere protected from South Sound moisture.
Or let Hammond Knoll handle the cleaning and storage for you.
