How to Clean Outdoor Furniture

A patio set is really several cleaning problems wearing one label. The teak bench, the aluminum chairs, the resin side table and the cushions piled on all of them have spent the season collecting the same pollen, sap and mildew, but they don't shed it the same way — and a method that's perfect for one will quietly ruin another. The good news is that you can get most of the job done before any of those differences matter, and only the last ten percent asks you to think about materials at all.

The soapy-water baseline does most of the work

Before you sort anything by material, reach for the least dramatic option in the shed: warm water, a few drops of mild dish soap, a soft brush or cloth, a thorough rinse, and — the part people rush — complete drying. That combination lifts pollen, dust, cobwebs and general film off almost every patio surface there is. Nine times out of ten you never need to escalate beyond it.

Two habits turn that baseline from "usually fine" into "reliable." The first is testing any cleaner stronger than dish soap on a spot nobody looks at — the underside of an arm, the back leg — before you commit to a whole piece. Finishes and dyes react in ways you can't always predict. The second is treating drying as a real step rather than something the sun handles later. Trapped moisture is what rusts metal and grows mildew, so a piece left damp in the shade is a piece you'll be re-cleaning sooner. This is the same chemistry-over-force logic behind gentle exterior cleaning in general, laid out in our piece on how soft washing works.

Where the materials part ways

Once the easy grime is gone, the stubborn stuff — set-in mildew, rust, chalky fade — is where each material asks for its own approach.

Wood (teak, cedar, eucalyptus). Scrub gently along the grain with the same soapy water and a soft brush, then rinse and let it dry fully. If your teak has silvered to a soft gray, that's weathering, not damage — purely cosmetic, and reversible with oil if you want the honey color back. What you want to avoid is harsh chemicals and high pressure, both of which raise the grain and strip the wood's natural oils. The same instincts scale up to larger surfaces; our guide to cleaning a wood deck goes deeper on wood care.

Metal (aluminum, wrought iron, steel). Wash, then dry promptly — the drying is what keeps rust from getting a start. Powder-coated aluminum asks for nothing more than soap and water; skip abrasives, which scratch the coating and give corrosion a way in. On iron or steel, light surface rust can be scuffed off with a fine abrasive pad, and the bare spot then cleaned, dried and protected. Touching up chips and scratches promptly is what keeps small rust from becoming a refinishing job.

Plastic and resin. The forgiving one. Soapy water and a soft brush, then rinse, handles almost everything. For stubborn grime or the chalky look faded plastic takes on, a slightly stronger mild solution helps — but stay away from scouring pads, which leave permanent scuffs on the smooth surface that no amount of cleaning removes.

Wicker and rattan (natural and synthetic). Brush loose dirt out of the weave first, then wipe with a damp, soapy cloth, using a soft brush to get into the crevices. The one rule that matters: don't soak it. Natural wicker in particular hates standing water, and moisture trapped down in the weave is a standing invitation to mildew. Dry it thoroughly, ideally in the sun.

Cushions are where mildew shows first

Fabric holds moisture longer than any frame, which is why cushions are usually the first place mildew appears. Cleaning them is less about the cleaner and more about the sequence. Brush off loose spores outdoors before you wet anything, so you're not driving them deeper into the weave. Check the care label — many covers zip off and go in the wash. Then clean gently with a mild soap solution and a soft brush, working it into the fabric, rinse until no soap residue is left, and dry the cushions completely, inside and out, before they go back or into storage.

That last step is the whole game. If mildew keeps coming back no matter how carefully you clean, the problem almost never lives in the cleaner — it lives in how and where the cushions are stored. Damp, shaded, poorly ventilated storage regrows mildew every season. Fixing airflow does more than a stronger product ever will.

Telling "dirty" apart from "done for"

Cleaning day is also the best time you'll get to inspect furniture up close, and some of what you find won't come off no matter what you use — because it's damage, not dirt. Deep, flaking rust that has eaten past the surface of metal is structural, not cosmetic. Plastic that has gone brittle and cracked under years of UV isn't safe to sit on, cleaned or not. Loose joints and wobbling frames on any material are telling you the piece needs a repair, not a wash. And wood that has begun to rot or split is past what cleaning can restore. Sorting these out as you go keeps you from spending an afternoon polishing something that belongs in the repair pile.

When cleaning turns into restoration

Everything above is squarely a do-it-yourself job — the humble bucket handles it. The line worth watching is the one where cleaning quietly becomes restoration, because that's a different skill and often a different budget. Refinishing weathered wood or re-oiling teak back to like-new, treating and refinishing metal that has rusted across a whole frame, deep-cleaning or reupholstering cushions where mildew has genuinely set in, or reviving an antique or high-value piece you'd rather not risk — those are the moments where handing it off makes sense. If you do price out a full patio refresh, expect the estimate to move with the number and size of pieces, how soiled they are, the materials involved, and how much of the work is refinishing rather than washing; treat any quote as a planning figure. For the broader logic of matching gentle methods to delicate surfaces, our overview of pressure washing versus soft washing is a useful companion, and the full exterior cleaning library covers the rest of the patio and yard.