Darren Dimmock from Into Plumbing & Heating Ltd. talks about how he's scaled his business alongside targeting higher value, long term contracts in domestic and social housing. Darren talks about the relentless marketing and email campaign that he's used to drum up business and shares insight into how to do the same.  Darren talks about bringing people in to carry out these high value contracts, the strategy now he's won some good quality contracts and more.