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How to look after aluminium garden furniture

Updated: 22 October 2026

The frame can stay on a UK patio through a wet November. The cushions, the steel screws, and a chipped powder coat cannot be left under a sealed plastic sheet and forgotten. If you are about to pay for a set, this is the weekend routine. How to look after aluminium garden furniture comes down to four materials that fail in different ways: the aluminium, the coating, the fixings, and the foam. The [aluminium garden furniture comparison](/hub/garden-furniture/aluminium-garden-furniture) is where the seven listings sit. This page does not rank them. Harbour Lifestyle's care guide is the default method below. No lifespan in years is claimed. A qualifying purchase can earn us a commission at no extra cost to you.

The frame can stay on a UK patio through a wet November. The cushions, the steel screws, and a chipped powder coat cannot be left under a sealed plastic sheet and forgotten.

Our top picks

Withniture Withniture 3-piece cast aluminium bistro set

Best overall

Withniture Withniture 3-piece cast aluminium bistro set
7.7/10about £129.99
View offer
Home Source Home Source Rose 3-piece cast aluminium bistro set

Best value

Home Source Home Source Rose 3-piece cast aluminium bistro set
7.4/10about £106.00
View offer
EVRE EVRE Marbella modular aluminium lounge

Rank 3

EVRE EVRE Marbella modular aluminium lounge
5.2/10about £449.00
View offer
On this page
  1. 1.What can stay outside
  2. 2.How to wash the frame
  3. 3.Chips, oxide, and rusty fixings
  4. 4.Covers and a UK winter

What can stay outside

Aluminium does not form red rust the way bare steel does, so a cast bistro or a powder-coated lounge frame can live outside if the listing allows it. Lazy Susan's FAQ says their own cast sets can stay out uncovered, and that line is about their furniture, not a promise for every set in a marketplace search. Cushions are the part that should not copy the frame. The EVRE Aruba and the EVRE Marbella both set the waterproof field to false. Supremo's care note is blunt: do not store loose cushions under the furniture cover, and if the foam is wet, dry it. Home Source reviews are the worked example of what the advert misses: rusty screws and legs within days to a month. The bolts were the problem, not a sudden failure of the metal itself. If you are still choosing a format, the buying guide is the order of decisions.

How to wash the frame

Use a soft cloth, warm water, and a mild detergent, then rinse and dry. Harbour Lifestyle tells you to avoid bleach and solvents, because they mark powder coat and can dull a cast finish. Do not drag the set to the hose. Lift it. Near the coast, Supremo suggests a monthly rinse because salt sits in the joints even when the frame looks clean. Pressure washing is where the guides split. Harbour says not to pressure-wash. STIHL's own guidance for some outdoor kit allows a low fan jet. Prefer the gentler line on furniture: a household hose.
Withniture Withniture 3-piece cast aluminium bistro set

Testsieger

Withniture Withniture 3-piece cast aluminium bistro set
7.7/10about £129.99
View offer

Chips, oxide, and rusty fixings

A small chip in powder coat is a touch-up job. Tiger Coatings describes liquid touch-up as suitable for small chips, and a proper recoat when the finish is peeling over a wide area. Clean the spot, dry it, and cover the bare metal so water is not sitting on it until spring. A grey bloom on bare aluminium can be oxide, which is the metal protecting itself, and it is not the same as orange rust on a screw head. Rustproof on the Withniture and Goods Emporium lines does not cover every bolt. Harbour's aluminium guide says to check steel fixings and not to attack them with power tools. Home Source buyers describe rusty screws early, which is why it belongs in the first month rather than in year five. Misaligned holes and jagged edges on arrival are quality issues under the Consumer Rights Act 2015, normally within 30 days. Seat height and parasol holes are a different problem, handled on the bistro set page.

Covers and a UK winter

A breathable cover over a dry frame keeps wet leaves out of the joints. A sealed sheet over damp cushions keeps the moisture in and grows mould on the foam. Supremo is explicit that loose cushions should not live under the cover. Take the Aruba and Marbella cushions indoors, because those listings already say they are not waterproof. If a cover did come in the box, as with the Monster Shop rain cover, use it on the frame once the seats are bare and dry. Weave, if you later buy a PE rattan set rather than bare aluminium, has its own brush-and-hose routine on the aluminium versus rattan page. Wash with soap and water, dry the frame, touch up chips that are still small, check the screws, and bring the cushions inside.

Common questions

Can the frame stay outside all winter?
Often, yes, if it is aluminium and you are not also leaving wet foam on it. Lazy Susan says their cast sets can stay out uncovered, which is their warranty world, not yours by default. Cushions on the Aruba and Marbella are marked not waterproof. A plastic sheet over damp seats is not.
What if the coating is chipped?
Small chips can be touched up once the metal is clean and dry, so water is not parked on bare aluminium all winter. Wide peeling needs a proper recoat, not a dab of paint over flakes. Do not grind the chip back with a power tool. If the damage was there on delivery, photograph it and use the 30-day right to reject when the goods are not as described.
Why are the screws rusty if the advert said rustproof?
Because the frame and the fixings are not always the same metal. Aluminium does not throw red rust the way steel does. Home Source reviews describe rusty screws and legs within days to a month. That does not prove the aluminium has failed. Dry the joint and replace a seized bolt rather than forcing it with a driver.
Can cushions live under the furniture cover?
No, not if they are damp, and not as a default even when they look dry. Supremo says not to store loose cushions under the cover, and to dry wet foam before you put it away. Aruba and Marbella are marked not waterproof. Take those cushions indoors.
What is different near the sea?
Salt. It sits on coated frames and in steel threads even when the garden looks rinsed by rain. Supremo suggests a monthly fresh-water rinse for coastal sets. Oxide on bare aluminium can look like a dull film. Orange on a screw head is the fixing. There is no year-count in this file worth repeating.

Related pages

Garden furniture cover comparison

Aluminium garden furniture

Best aluminium garden furniture: who should skip it

Aluminium bistro set: table, seat and parasol hole

Aluminium garden furniture buying guide for patios

Aluminium vs rattan garden furniture for a UK patio

Sources

Public UK sources from the research digest. Shelf date 21 October 2026. Page updated 22 October 2026.

  1. GOV.UK: General Product Safety Regulations 2005, Great Britain (retrieved 21 October 2026)
  2. Furniture and Furnishings (Fire) (Safety) Regulations 1988 (retrieved 21 October 2026)
  3. GOV.UK: Furniture fire safety amendment regulations 2025 (retrieved 21 October 2026)
  4. BSI: BS EN 581-1:2017, outdoor furniture general safety (retrieved 21 October 2026)
  5. BSI: BS EN 581-3:2026, outdoor tables including glass (retrieved 21 October 2026)
  6. GOV.UK: Gas appliances, Great Britain (retrieved 21 October 2026)
  7. Consumer Rights Act 2015, section 22 (retrieved 21 October 2026)
  8. Harbour Lifestyle: Care guide, aluminium garden furniture (retrieved 21 October 2026)