How to Clean an Old Painting Without Damaging It
An old painting collects dust like any other surface in the house, but unlike furniture, a cleaning mistake here is often irreversible. Canvas, paint, and protective varnish react differently than wood or metal, and ordinary cleaning products can dissolve or permanently stain an old work. Here's what's safe, and what to avoid entirely.
Dust: the only cleaning you do often
A soft, wide brush or a dry microfiber cloth, run lightly over the frame and the protective glass (if there is one), is usually all it takes. On a carved frame, a brush reaches corners a cloth skips. Never press directly on unprotected canvas — even a light touch can leave a permanent mark on a paint layer weakened by age.
Protective glass: yes, but watch where you spray
If the painting sits under glass, it cleans like any window — but never spray solution directly onto the glass. Liquid can seep under the frame and reach the canvas or the mat, leaving permanent stains. Always spray onto a cloth, away from the painting, then wipe the glass with the dampened cloth.
What to avoid entirely, no matter how dirty the canvas looks
No water directly on the canvas, no alcohol, no all-purpose cleaning products, no abrasive scourers. Old paint and protective varnish (if the work was varnished) react unpredictably to household solvents — a surface dirt stain can turn, through the wrong cleaning attempt, into a permanent stain spread over a larger area. Just like with bronze and brass fittings, the basic rule is the same: less is safer.
When a specialist is genuinely worth it
Old soot or grease stains, evenly yellowed varnish, or paint flaking at the edges all call for a restorer, not a home cleaning. Professional restoration, done correctly, preserves a work's value; an amateur attempt at aggressive cleaning can irreversibly lower it — just as with furniture, where provenance and original condition matter as much as looks.
Correct placement reduces how often it needs cleaning
Away from radiators, direct sunlight, and areas with variable humidity — kitchens, bathrooms — a painting collects far less dust and stays stable for years. If you're also wondering at what height to hang it correctly, we wrote a practical guide dedicated to exactly that.
How we choose paintings at Martello, in Moldova and Romania
Every piece in the Martello catalogue, including our paintings collection, is personally checked by us for the condition of the canvas, varnish, and frame. You can see them directly at our showroom in Nimoreni, Ialoveni, fifteen minutes from Chișinău, or browse the vintage furniture section. Correct, minimal care preserves exactly what makes an old painting valuable — it doesn't try to make it look new.