Abstract: A method of making and installing a rain gutter includes the step of providing a gutter of PVC material and attaching the gutter along the eaves of a structure to collect rain water draining from the roof of the structure. A downspout connector of PVC is attached to one end of the gutter utilizing a chemical welding process such that the PVC material in the connector and gutter fuse together to form a single integral piece. The connector is formed so as to redirect water draining from the gutter to a vertical direction, to thereby enter a downspout. Support brackets for the gutters are also manufactured of PVC, and attached to the gutter utilizing the chemical welding process, such that the support brackets become an integral part of the gutter. A special clamp is utilized to connect adjacent pieces during the chemical welding process to insure that the parts are fused together to form an integrated unit.