can you use trade logos when not a member? I thought they were copyrighted and you needed permission
lets be honest, your website is cleverly worded to imply you are a member of some trade org' . So you don't see the value of being a member of the NCCA, but happily use there logo :

it took me 4 years to get my City & guild, how long did you study to get your one component toward your city & guild qualification ?
it looks like you are using clever words to mislead & to give yourself credibility.
Mike