Braintree extended Telford's winless run to 13 league matches with an important victory at the bottom of the Blue Square Bet Premier.
The hosts led when Sean Marks finished smartly, before Luke Daley scored from close range to extend the advantage.
Nathan Rooney's spectacular strike gave Telford hope, but Kenny Davis scored from the spot after Bradley Dack was fouled to provide daylight again.
Rooney's injury time free-kick proved to be no more than a consolation.
Telford were able to name Jason Stokes on the bench after the winger signed a deal with the club on Friday following his release by Boston.
VIEW FROM THE DRESSING ROOM
Braintree Town manager Alan Devonshire told BBC Essex:
"We played quite well. It was a bit end-to-end and we've pushed on from there.
"We were a bit fortunate with certain things but you need a little bit of luck sometimes. I think we've got the rub of the green today but it's good to get a good win.
"We've won four out of seven, which isn't bad. Out of 21 points, we've got 12, so it's a good return for us.
"If we carry on doing that until the end of the season, we'll be fine."
AFC Telford United Manager Andy Sinton told BBC Radio Shropshire:
"The first half was nip and tuck, two sides who didn't really know how to win. We went backwards in the second half and they played us off the park."
"With the run we were on, it was always going to be vital who scored first, and within the first few minutes they cut us open."
"We have a massive game on Tuesday and we have go into that game fresh minded, hopefully we'll have two fresh faces - the manner we are conceding goals is not good enough at this moment in time."