Is your Furnace on the roof in Palmdale? Is your Furnance on the roof in Lancaster? Do you need furnace repair in Palmdale? Do you need Furnace repair in Lancaster? We have a Maintenance agreement that includes 2 visits a year, we climb up and check the operations of your unit. Our technicians can tell you what your furnace needs to get you warm. We make sure it is running good and that your filters are cleaned and/or replaced. Check the ducks to make sure that all your warm air is flowing into the home, not wasted flowing into the attic or outside area.