The fastest way to damage an antique painting is to “clean” it yourself. Here is how to care for an old oil safely at home — and exactly where the line is that only a professional conservator should cross.
Key takeaways
- ✓Never use water, spit, bread, onion, cleaners or solvents on the paint surface.
- ✓Safe at home: gentle dry dusting with a soft brush — nothing more.
- ✓Leave varnish removal, grime and flaking paint to a conservator.
- ✓Keep pictures out of direct sun and away from radiators and damp.
- ✓Works on paper must never be cleaned at home.
The golden rule
Old household ‘remedies’ — a damp cloth, bread, a cut onion, spit — remove original paint and varnish along with the dirt. Home cleaning is the single most common cause of avoidable damage to antique oils.
Do / don’t
Safe versus specialist tasks
| Safe to do at home | Leave to a conservator |
|---|---|
| Dust the frame with a dry, soft brush | Removing yellowed varnish |
| Lift loose dust with a soft, dry brush | Cleaning surface grime and stains |
| Check fixings and hanging | Consolidating flaking paint |
| Control light, heat and humidity | Relining, retouching, structural repair |
Stop immediately if any paint is flaking or lifting, and consult a conservator; the Institute of Conservation keeps a public register of accredited professionals.
Display
Hanging and environment
Light
Avoid direct sunlight; UV fades pigments over time. Position pictures away from windows where you can.
Humidity
Aim for stable, moderate humidity. Avoid bathrooms, kitchens and damp exterior walls.
Heat
Never hang directly above a working fireplace or radiator; heat cycling stresses the paint film.
Fixings
Use two hooks so the weight is level and secure, and check cords and rings periodically.
Storage
Putting a painting away safely
If a work must be stored, keep it upright, off the floor, face-to-face or back-to-back with acid-free board between pictures, in a stable, dry room. Never wrap an oil tightly in plastic against the surface — it can trap moisture and stick.
“When in doubt, do less. A little dust never ruined a painting; a wet cloth has ruined thousands.”
Frames
Glazing and protection
Oils are usually displayed unglazed, but a fragile surface may benefit from glazing; works on paper always need UV-protective glazing. If your frame needs attention, read Antique Frames, and see our medium guide for care differences by support.
Questions
Frequently asked
Can I use a damp cloth to remove dust?
No. Even water can lift fragile paint or disturb varnish. Use only a soft, dry brush, and leave any actual cleaning to a conservator.
My painting looks yellow and dull — can it be improved?
Very likely, but by a professional. Removing discoloured varnish is skilled, reversible work that can transform a picture — and easily ruin it if attempted at home.
How do I find a conservator?
In the UK, the Institute of Conservation (Icon) publishes a register of accredited conservators; equivalent bodies exist internationally.
Buy with care in mind
Every painting in our catalogue is described with its condition stated, so you know exactly what you are caring for.
References
Sources & further reading
- Canadian Conservation Institute (CCI), care of paintings (CCI Notes) — canada.ca/conservation-institute
- Institute of Conservation (Icon), register of accredited conservators — icon.org.uk
- American Institute for Conservation (AIC), caring for your treasures — culturalheritage.org
