Can VaporRemed remove heating oil stains from concrete basement floor and walls in the basement?

Yes. VaporRemed has been used to remove stains from concrete and wooden surfaces in basements. In one case, VaporRemed was sprayed on a 20-year old floor stain and, within minutes, the stain was wiped off and removed. Stains on most surfaces, with the exception of brick, can be removed by wiping the area several minutes after spraying VaporRemed.