Loft Conversions Middlesbrough, Stockton - Welcome to the Middlesbrough Loft Conversions Directory listing recommended loft conversion companies in Middlesbrough. It lists those who offer loft extensions and loft conversions in Middlesbrough, Stockton. Do you have a Middlesbrough loft conversion business? If so, why not advertise it on the Middlesbrough Business Directory - IT'S FREE.