Eastney Beam Engine House is a Grade II -listed Victorian engine house in Portsmouth, Hampshire, England. Dating from 1887, it contains two 150 hp James Watt & Co. beam engines. The pumps were built as part of a plan to improve Portsmouth's sewage system. The other element of the plan was large holding tanks which held the sewage until the pumps could empty them into the . The pumps have since been superseded by advancing technology but have been restored (in 1980). The restoration was funded by grants totalling ã10,066 from Portsmouth city council, ã4000 from Hampshire county council and ã2000 from the Department of the Environment. The Engine House is now open to the public as a museum, owned by Portsmouth City Council (Museums Service) but operated by volunteers; consequently is only open on the last weekend in every month.