So sick of their calls. Finally answered with a very annoyed, "Hello" and they hung up without saying a word. If it is telemarketers they suck if they get discouraged that easily.

Another call on my cell phone from 703-516-8313.  I can't figure out how they're able to get away with robo-calling for years without Verizon and its billion-dollar empire shutting them down.

Seriously, you're plumping for their right to randomly, obnoxiously call anyone whenever they want?  No one denies the usefulness of hvac services, but why should all of us be bombarded by THIS outfit when we're clever enough to find a vendor of our own?

Yet another "objective" poster who misses the point.  I don't want their calls, period.  Whether you got good service or not is beside the point.  I have my own service provider.  If these people were so good, having been in the business as long as they have, as one respondent here posted, then surely word of mouth and a couple of radio ads should do the trick.  The fact that they randomly call suggests that they are NOT so good.

United Air Temp is a legitimate busines, but one that mostly performs "maintenance" in order to upsell follow-on work. Their techs are pleasant and skilled, but are being pressured to sell unnecessary installation work along with their cleanings. The company will call repeatedly and frequently until you call them back because they are aggressively seeking additional jobs from previous clients. Not illegal, but irritating.