Hi Louise always check out the installers previous ratings ask to see lots of pictures of previous work and if in doubt ask for some contact details of previous customers so that you can talk to them directly
Hope this helps
Projects that add value to your home - Phil Spencer
Looking to extend your home but don't know where to start? Property expert and Rated People ambassador, Phil Spencer, shares some thoughts on why loft conversions are such a popular way to create more living space and add value to your home.