Isn't that area supposed to be kept a bit warm with heat ducts and such??
Don't notice the cool floors there so much as the non-carpeted areas in the main living area. Whew, they are fine as long as the furnace is running, but if no furnace, them there floors is chilly!
We wear slippers during the cooler weather and put down extra rugs on the areas that are not carpeted.
Gotta have the furnace run some, using just electric heaters, or the fireplace if you have one, does not warm up the basement or the areas where the water lines run. We do NOT put an electric heater in the basement, even tho Al has an extra outlet or so down there for other uses.