The party was united behind opposition to Labour, which was divided
Their promise to build 300,000 houses a year was popular as Labour hadn't been able to deal with the post war housing shortage
They campaigned against rationing and regulation while keeping popular policies from the Atlee government namely the welfare state and full employment policies
Churchill was still very much admired and in 1951 he didn't make controversial speeches such as the 1945 Gestapo speech
The electoral system failed to work in Labour's favour as they won more votes but not more seats
The decline in popularity of the Liberal party from 2.6 million votes in 1945, to 750,000 in 1951, most former Liberals turned to the Conservatives
Labour was too associated with state controlled industry, which many traditional Liberals didn't like, this impacted marginal seats in the 1950 election
The changes made to the electoral boundaries in 1948 tended to favour the Conservatives, Labour kept its support in densely populated industrial areas but in suburban areas, the Conservatives did better
In 1945 there had been considerable sympathy for Socialism, and admiration for the planning and state control of the USSR, by 1951 the Cold War had led to the USSR being seen as the enemy and the controls and regulations under Labour had meant that ideas of Socialism and a powerful state was less popular, this led to many turning to the Conservatives