We have 5 holly trees ( see pictures below) at least 30yr old planted 3-4 ft from the side of our house for privacy; our longtime insurance company has stated they are not happy with these as they believe the roots may damage the house; we live in Bethesda and our house was built sometime in the 1950s; we are careful to trim and maintain the large trees (oak etc) which are on our block but had not considered the hollies to be any sort of hazard is this likely to be possible? many thanks