Soundproofing Between Units
Any landlord who has dealt with repeated noise complaints knows the value soundproofing. Vinyl sound barriers can also be installed either during construction or by retrofitting the walls and ceiling. If you own existing structures, see if thick floor coverings solve the problem before attempting the retrofit. Thick carpet and pads muffles sounds between units. Watch for sales at local flooring retailers and wholesalers. Their end cuts and remnants will save money and you don't have to worry about matching the colors between units. As a bonus, your tenants and prospective buyers will appreciate the rich feel of thicker floor covering.