I called a local heating and AC company, to see if they could give me an estimate to add a section of baseboard to easy child's room. We use oil heat and the actual heater is baseboard, and uses water. They referred me to a plumber. The plumber had no idea. I called a handyman company. They had no idea. While I'm waiting for them to call back, do you have an recommendations for what type of expertise would be needed to do this work? Thanks!