a very pale (bleached) orange/yellow bedsheet over the window (use green painters tape to secure, preferrably on the outside), add large silver reflectors to bounce that light around the room, or add halogen lights. (lower overall brightness, and warms sunlight to match interior lights)
or
get blue gels for your halogen lights, and use diffusers to add light to your shadow areas, to bring the light up to within a half stop, of the window light. (lowers contrast by increasing overall brightness, and corects artificial light to match daylight)
or
get some big mirrors, or silver reflectors (make from car window shades, or cardboard and tinfoil) mount them inside and/or outside the house and angle them to reflect sunlight into every corner of the room to cover your shot. (uses all daylight, reflected where you need it).
in all circumstances, set exposure and color balance manually.
