Another stupid number that doesn't answer. I picked up when it rang....no one there. Called back (blocking my number *67). It answered with options. NEVER said who they were. I picked the option to speak to a rep. Got no one and it wanted me to leave a message...yeah right...good luck.
Calls home and cell phone everyday -- no message. I block my number and call back only to get a voice message that says leave number and call will be return. Internet says the message from the caller is that they have used their services in the past for a furnace and air conditioning check -- all say not true. Would recommend that you block this number.
Never answer 240-573-7981. If you can block, do so. These calls are scary as to what they know about you. It is obviously a scam to get into your home or get information from you over the phone.