The short answer
Work the ladder in order: wash first — professional cleaning restores more oxidized aluminum than owners believe, for a few hundred dollars. Paint second, when color is chalked past washing but panels are sound, at a tenth of replacement cost. Replace only for widespread dents, failed panels, or when you simply want new — not because the siding looks dirty.
The $400 Answer, the $4,000 Answer, and the $14,000 Answer
Postwar neighborhoods across Warren are wrapped in original aluminum — siding that has outlived its installers and, with honest maintenance, will outlive its current owners. When it looks tired, three industries offer three answers: a washing company says clean it, a painter says coat it, a siding company says tear it off. All three are right sometimes. The order you should try them in is fixed: cheapest, reversible option first.
Branch One: Wash (Most Houses Stop Here)
Aluminum reads "worn out" for reasons that are mostly removable — decades of grime, organic film on the shade side, and light surface oxidation dulling the factory finish. A professional wash with aluminum-appropriate chemistry and low pressure takes all three off, and the panel color that emerges routinely surprises owners who'd been pricing replacement. At a few hundred dollars, this branch costs 3% of re-siding and answers the question definitively: what's left after a proper wash is what the siding actually is.
Branch Two: Paint (When Color Is Truly Gone)
If washed panels emerge sound but chalky-white and colorless — oxidation eaten through the finish rather than sitting on it — aluminum takes paint exceptionally well. A washed, primed, professionally coated aluminum house buys 15+ years of any color you want at roughly a tenth of replacement cost. The non-negotiable is the prep wash: paint over chalk and the new coat peels on schedule. Our pre-paint guide covers the timing.
Branch Three: Replace (Real Reasons Only)
Legitimate triggers: widespread hail dents, panels torn or missing where matching stock no longer exists, chronic water intrusion behind the siding, or an owner who wants modern profiles and insulation and can fund the five-figure project. "It looks dingy" is not on the list — dingy is branch one. The saddest checks we see written in this trade are replacements ordered on siding a $400 wash would have revived.
The chalk test, honestly read: wipe a palm across a panel. Light white residue = normal aging that washes; heavy chalk that coats the hand after a fresh wash = finish gone, think paint. Either way the metal itself is fine — aluminum doesn't rot, warp, or feed insects. It just gets dirty and eventually colorless.
The Bottom Line
Wash first, always — it's diagnostic and cosmetic at once. Paint when washing proves the color is spent. Replace when something is actually broken. Working the ladder in order routinely turns a $14,000 assumption back into a $400 afternoon.
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