 Gilmartin returned to English football by re-signing with Watford on a one-year deal on 25 August 2014 as a back-up to Heurelho Gomes and Jonathan Bond, two years after he first left the club.He signed a new two-year contract in June 2015 as the club approached their first season back in the Premier League.Alongside his playing career with Watford he commentates on the club's away games for BBC Three Counties Radio, is taking further coaching qualifications and has taken training sessions for the club's academy.