Disclosed are home care compositions comprising a dicarboxy functionalized polyorganosiloxane and methods for treating and modifying surfaces and for enhancing delivery of active agents to surfaces treated with the compositions. Said home care compositions can be used particularly for cleaning, rinsing, care or treatment of industrial, domestic or communal hard surfaces, as well as textile article surfaces; they are targeted at conferring on the surfaces treated therewith benefits such as water repellency, soil release, stain resistance, anti-fogging, surface repair, anti-wrinkling, shine, lubrication and/or at improving the residuality, impact and or efficacy of active materials comprised in said compositions. The dicarboxy functionalized polyorganosiloxane can be present in the home care compositions at a concentration of from about 0.005% to about 10% by weight, preferably from about 0.05% to about 5% by weight.