Robert Morgan of Morgan Construction has been working in the Sausalito houseboat community since the mid-1970s. Initially most of the houseboats were floating either on fiberglass-over-plywood flotation systems or else a variety of foam block flotation systems, with some steel hulls thrown in for good measure. In those days, underwater repairs to the fiberglass were typical, using scuba gear and underwater epoxy. Foam flotation blocks were removed when deteriorated and replaced with new blocks. Over time, however, concrete hulls became the standard flotation system. At present there are perhaps 450 houseboats in the Sausalito community, most of these are on concrete hulls, and most of these are many decades old and starting to develop issues. With the loss of Ian Moody of Aquamaison, there is currently (2022) no one building new concrete hulls to replace damaged or deteriorated ones.
Morgan Construction was previously involved in many phases of houseboat repair, from roof to hull, with rainwater intrusion correction, flotation additions, remodeling, and of course concrete hull repairs. Due to high demand, Morgan Construction is currently only involved in concrete hull repairs, and that is limited to the Sausalito area.