Entu (UK) plc is a United Kingdom-based home efficiency group, providing energy efficiency products and services to homeowners. The Company is engaged in the sale and installation of home efficiency products, home improvement products and eco-funded measures. The Company operates through four segments: Home Improvements, which offers unplasticized polyvinyl chloride (uPVC) doors, conservatories and rooflines; Energy Generation and Saving, which provides windows, solar photovoltaic and boilers; Repair and Renewal Service Agreements, and Insulation, which offers cavity wall insulation, external wall insulation and loft insulation. Job Worth Doing is the Company's national installation service. The Company's portfolio of brands includes Weatherseal, Penicuik, Energy Hypermarket, Zenith, Zenith Energy Saving Experts (ZEST), Staybrite Solar, Europlas, St Andrews, St Helens Glass, Job Worth Doing, Soltrac and Norwood Interiors.