I went through a bad experience with NAPIT so be warned. 10 days... It took them that long to answer an email!Firstly they lost my application form twice. It took 6 weeks for the assessment to be set up, had to request the helpful MCS docs be sent as it had not automatically been sent as promised.Once the assessment was completed had to deal with some non conformities but got unclear guidance regarding the roof survey; told one one thing then asked to do another, typical moving of goal posts. Had to chase them CONSTANTLY when I sent emails off. The best was when I got a 'read receipt' from some one who was on holiday but they had old dates in their out of office, turns out someone was checking their email, and deciding to keep the rest secret!I cannot say this will always be the case but I got the feeling there are people within NAPIT pushing us all to sign up for MCS as they get a lot of money from the scheme, but the back room staff are overworked.Don't wish to put you off, but beware when they say it is easy and don't forget you pay them up front.