I finished my thesis thanks to a group of people scattered over the internet, all agreeing to do pomodoro. In the breaks we'd chat about our day to day lives then get back to work when the bell rang. I'll always be grateful for their presence, getting me through hard times when I'd perhaps have given up if I felt completely alone; or at least not worked so deeply and thoroughly.
It might be a good way to run an office. Define pomodoro blocks in which you cannot interrupt your coworkers. No slacks, texts, phone calls, or conversations until the cycle ends.