Whilst placing the RSJ they damaged my ceiling by accidentally whacking the RSJ through my ceiling leaving a hole which now needs plasterboarding. Scratched loads of areas on my wood floor in the living room getting the RJS through! Calvin's responce "it wasnt my fault" Had the council come out next day to sign it off to be told it couldn't be signed off due to some areas of concern that needed re-doing! Contacted Calvin to get it finished but he has blocked me.. Cowboys! AVOID.