On 24 August 2011, he scored his first goal of the new season. He scored it 20-yards from the goal. The match was against Exeter City. He made the score 3–0 in the second round of the League Cup. On 1 October 2011, he scored his first goal of the 2011–12 Premier League during a 2–0 victory over Everton at Goodison Park. His third goal of the season was in a 2–0 win away at West Brom. He scored his first goal of 2012 in a 5–1 third-round FA Cup victory against Oldham Athletic. He assisted the Dirk Kuyt goal in the 88th minute against Manchester United in the fourth round of the FA Cup on 28 January. As a result, Liverpool won the game. He scored his fifth goal of the season in a 3–0 victory away at Wolves on 31 January. This was on his first anniversary of joining the club. Liverpool won 6–1 against Brighton & Hove Albion in the fifth-round of the FA Cup. Carroll scored one goal and assisted one goal by Luis Suárez On 26 February, he won his first trophy with Liverpool as they won the League Cup. They beat Cardiff in the Final. On 10 April, he scored a goal from a header against Blackburn during injury-time Liverpool won the match. This ended Liverpool's run of four games without a win. Four days later, he headed in another late goal which won Liverpool the match. This time it was in a 2–1 victory against Everton in the FA Cup semi-final at Wembley. Because of his goal, Liverpool qualified to the Final. This was his 50th match played for Liverpool. Carroll described his match-winning goal as "the best feeling ever". Team-mate Jamie Carragher said the goal was "worth £35 million in itself". He also that Carroll would "be remembered forever". Carroll also scored in the final, which Liverpool lost 2–1 to Chelsea.
On 30 August 2012, Carroll signed with West Ham. He was on a season-long loan. Liverpool wanted a clause in the deal which would make West Ham pay £17 million to bring him to the club permanently. But they had to remove it since West Ham did not agree. West Ham ultimately paid a £2 million loan arrangement fee. They also started paying all of Carroll's £80,000-a-week Liverpool wages.
Carroll made his debut on 1 September. He set-up (assisted) two goals in a 3–0 home win against Fulham. He scored his first goal on 25 November 2012. This was in a 3–1 away defeat against Tottenham Hotspur. Carroll was injured in November. He returned on 2 February 2013 againstSwansea City. He scored the only goal in that match. Carroll ended the loan spell with seven goals in 24 appearances.
On 21 May 2013, West Ham and Liverpool agreed a fee of around £15 million to make the loan move permanent Carroll agreed to the move and signed a six-year contract with West Ham on 19 June 2013. The fee was a club record.
Carroll started the 2013–14 season injured. He had a heel problem picked up in the final game of the last season. He made his first appearance of the season on 12 January 2014. He came on as a substitute in the 72nd minute of a 2–0 victory over Cardiff City. He assisted Mark Noble for West Ham's second goal.
On 1 February 2014, Carroll was sent off for being violent against Swansea City defender Chico Flores in West Ham's 2–0 win over the Welsh club. On 15 March, he scored his first Premier League goal of the season in a 3–1 defeat at Stoke City. On 31 March, he was named man of the match by Sky Sports for the way he played in a 2–1 win against Sunderland at the Stadium of Light. He scored one and assisted the other of West Ham's goals.
Carroll ended the 2013–14 Premier League season with only two goals from 18 appearances.
During a pre-season tour of New Zealand, Carroll sustained an ankle ligament injury. This meant he could not play in West Ham's first eleven Premier League matches. Carroll returned to the team on 8 November 2014. He came on as a substitute for Mark Noble in a 0–0 draw with Aston Villa.
Carroll was selected to start in the Hammers' next match. He played the full ninety minutes. West Ham lost the match 1-2 to Everton. On 7 December 2014, he scored his first two goals of the season. It was in a match against Swansea City. The Hammers won the match 3-1 at home. They were the first goals he scored at home since March 2013. On 20 December, Carroll scored the 50th league goal of his career. West Ham beat Leicester City 2-0.
On 11 September 2007, Carroll made his England under-19 debut against Belarus. He scored in the 4–0 victory. On 12 March 2009, Carroll was called up to the England U-20s for a match against Italy U-20s. He was withdrawn from the squad and replaced by Hal Robson-Kanu of Swindon Town.
Carroll received his first call up to the England U-21s on 5 August 2009. He made his debut on 11 August 2009 against Holland. He came on as a second-half substitute. His second match with the under-21 team was on 9 October 2009 against Macedonia U-21s. He scored two goals and assisted another. England won the match 6-3.
Because of Carroll's performances for Newcastle United, he was called up to the England squad for the friendly against France. This was on 17 November 2010. Carroll passed a late fitness test to start the match.
Carroll scored his first senior goal for England on 29 March 2011. He scored with a low drive from his left foot. The match was a friendly against Ghana which ended 1–1. On 15 May 2012, Carroll was selected in the squad for the 2012 European Championship. He scored the first goal for England against Sweden. The goal was from a header. England went on to win the match 3–2.
Carroll was often compared to Newcastle's record goalscorer Alan Shearer, Ivory Coast striker Didier Drogba and former Italy forward Christian Vieri because of similar style of play. He has been called a classic centre forward. This is because of his strength, powerful shot and header. Former Newcastle manager and Liverpool player Kevin Keegan stated "he is probably in the top three headers of a ball I have ever seen in football". After Newcastle's 2–0 victory at home to Blackpool in September 2010, in which Carroll scored the second goal and helped in creating the first, Blackpool manager Ian Holloway described Carroll as "the best striker in the Premier League".
Carroll was born in Gateshead. He attended Brighton Avenue Primary School and Joseph Swan School.
Carroll is also a model for retail clothing company H&M. He has fronted a campaign led by fashion designer Alexander Wang. In November 2014, Carroll became engaged to reality TV star, Billi Mucklow. The couple live in Essex. In December 2014, it was announced that they are expecting their first child.
Carroll has been involved in many off-the-pitch incidents in his career. On 14 September 2008, he was arrested by police in Newcastle. He later accepted a police caution. On 7 December 2009, he was arrested in the aftermath of a nightclub fight, again in Newcastle, accused of smashing glass in a man's face. He was charged with assault and in October 2010. He pleaded guilty to common assault and was fined £1,000. He was also ordered to pay £2,500 compensation.
Whilst on international duty with England U-19s, Carroll and teammates Scott Sinclair and Ryan Bertrand were sent home from the squad. They broke a curfew on 14 October 2007 during preparation for a match against Romania U-19s.
In March 2010, Carroll was allegedly involved in an dispute with teammate Steven Taylor during training. Taylor was left with a broken jaw. Carroll was said to have suffered a broken hand in the incident. Soon after this, he was photographed at a pop concert with bandages to both hands. Newcastle manager Chris Hughton, club representatives and both players declined to comment any further on the incident. No charges were pressed.