We had a conservatory (a glass and steel structure) which joined our house to our extension. However, it was unsatisfactory in both ventilation and guttering. Our original builder had gone out of business and we didn't know what to do. We rang Andrew McCarthy who designed the whole job and whose building team came out to make his design a reality. I have nothing but praise for these builders. They were working inside and cleaned up constantly after themselves. We are delighted with the finished product & would recommend them to anyone. They solved ALL our problems.