While you search the internet for the best roofer Hammersmith, you get plenty of results, so much so that you cannot consider all the listed companies. However, you can make a list of the top-ranking roofing companies. Try compelling a list of dozen roofers that rank the top in major search engines. After obtaining the list, look for each roofer's insurance and consider those roofers with licenses that allow them to handle roofing projects in the city. Ensure to check for the expiry dates and the issuing authorities.