At No.1 Services - Loft Conversions and Extensions company in London - we offer a full package from initial feasibility studies on new sites, through the often complicated planning process, right through to the completion of the works on site, including the certification of the works for finance and mortgage purposes.A high quality loft conversion is the best method of increasing your living space. It's also a prime way to increase the value of your home.Our dedicated construction professionals specialise in producing loft conversions in London of the highest quality while causing minimum disruption to your day-to-day family life.