In a match against Port Vale on 29 April 1999, Robinson made a poor tackle on Vale player Stewart Talbot, breaking both bones in Talbot's lower leg. The injury kept Talbot out of the game for 10 months and resulted in a "six-figure" out-of-court settlement. Out of 252 Watford appearances he was booked 63 times and sent off three times. One of these sendings off came in the 1998–99 play-off semi-final against Birmingham City, which saw him miss the second leg. He did feature, however, in the club's 2–0 play-off victory against future employers Bolton Wanderers.
Robinson made 32 appearances for Watford in their 1999–2000 FA Premier League season, and stayed with the club when they were relegated to Division One, making a further 124 league appearances for Watford in the second tier over the next four seasons.
In October 2003 Robinson was sold to West Bromwich Albion for an initial £250,000 fee, potentially rising to £375,000 depending on appearances and Albion being promoted to the Premiership. He had made 252 appearances in total for Watford, scoring 9 goals. He made his West Brom debut in a 1–0 win against Norwich City on 18 October.
Robinson was touted as a potential England left back by Bryan Robson and others. His first goal for West Brom was an injury-time headed equaliser at Villa Park in April 2005, which earned him the club's Goal of the Season award. The draw was one of several key results that enabled Albion's "Great Escape" from relegation.
In June 2006 Watford attempted to re-sign the player from West Brom for £1.4m; however, this bid was rejected by manager Robson and chairman Jeremy Peace, as Robinson was considered vital if the team was to realise its ambition of a quick return to the Premier League. Robinson signed a new three-year contract with the club in July 2006.
On 28 October 2006, Birmingham City captain Damien Johnson's jaw was broken in two places in a collision with Robinson during a local derby, for which he received a straight red card. The incident drew criticism from Birmingham manager Steve Bruce, who believed Robinson's use of the elbow to be a deliberate act.
Robinson was the subject of a £1.5m bid from Premiership team Wigan Athletic in August 2007 as a replacement for Leighton Baines, who had been sold to Everton. The move fell through when he failed a medical. In early November he was named in the Championship Team of the Week following Albion's 3–0 win at his former club Watford. He made the Team of the Week once again after Albion's 4–3 home win against Colchester United in March 2008. Robinson was named in the Professional Footballers' Association (PFA) Championship Team of the Year, alongside team mates Jonathan Greening and Kevin Phillips, after helping Albion win promotion to the Premiership as league champions.
On 12 July 2009, Robinson completed a season-long loan move to Bolton Wanderers, where he was reunited with his former manager Gary Megson. The player explained that he had joined Bolton on a three-year contract, the first year being on loan and the deal to become permanent in the summer of 2010 when Bolton would pay West Brom a fee of £1 million. He made his debut in a 1–0 loss to Sunderland on 15 August. The deal was made permanent in January 2010. He made 25 league appearances in the first season, and 35 in the following season, but fell out of favour in the 2011–12 Premier League season, only making 20 appearances in total for the club.
On 6 March 2012, Robinson joined Leeds United on a month's loan. He was an unused substitute for their away game at Hull City the same day, and made his debut in their 2–0 win at Middlesbrough on 11 March. Robinson's loan was extended to the end of the season. He was omitted from the last game of Leeds' season, because manager Neil Warnock was unwilling to risk his suffering injury in a "nothing" game as they were unlikely to sign him permanently. He returned to Bolton and was available for their last few matches, but was released when his contract expired at the end of the season, along with 11 other players, following the club's relegation from the Premier League.
After training with MLS side Toronto FC and then with Championship club Birmingham City, Robinson signed a one-month contract with the latter in September 2012 after injuries had left the club with only two fit senior defenders. He made his debut in the starting eleven in a 1–0 away win against Brighton & Hove Albion on 29th September. After four appearances, and with the team still weakened in defence by injury, he was given a second month's contract, and then a further two months after left-back David Murphy suffered knee damage. When that deal expired, and despite the club's financial dofficulties, his contract was extended until the end of the season. He finished the season playing at centre-half alongside Curtis Davies, having stood in for the injured Steven Caldwell and retained his place after Caldwell's return to fitness, and made 37 appearances in all competitions.
Robinson signed a one-year contract, with an option for a further year, ahead of the 2013–14 season, and was appointed both club and team captain for the 2013-14 season. He scored his first goal for the club – and his first goal for nearly five years – to open the scoring in a 3–0 defeat of Bristol Rovers in the FA Cup on 14 January 2014.
After all that - hope we relegate you Paul - good bye!