Read the previous reviews and selected two companies - one of which was Frank Ryan. The requirement (in Nov 2010) was to re-cover the large flat roof over the garage and utility room, replacing the roofing felt and boards. The quote was reasonable, with a guarantee of 10 years. Work was done within one week, workmen were happy and cheerful, the site was cleared and there are no leaks. One comment - careful about allowing the skip to be placed on your drive or garden because the weight may cause problems. Brought them back a few weeks later to re-cover the porch roof, again with no problems. Would recommend this company.