The most common alteration work we do is simple extension, supporting upper floors or even entire buildings. JVC Building Ltd, Building Contractors in London specialising in House Extensins, have extensive experience in this particular aspect of building work.
If you want to add an extension to your house think about the purpose of your extension. Is it going to be self-contained area for use as a separate home, an extra space for growing family, a commercial use or an investment to increase the value of your property? Draw out some plans and list of your ideas.