Tender: Framework for Heating, Electrical, Mechanical and Decarbonisation Works and Services for Domestic and Non‑Domestic Properties

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A procurement is seeking suppliers for a single combined, multi-supplier framework (no lots) to deliver heating, electrical, mechanical and decarbonisation works and associated services to domestic and non-domestic properties, including occupied and void properties. The scope covers supply, installation, replacement, upgrading, servicing, statutory and safety inspection, testing, planned and responsive maintenance and repair of heating, electrical, mechanical, renewable and low‑carbon energy systems. Heating works include gas, oil, solid fuel, electric and renewable systems such as gas and oil boilers, electric storage and panel heaters, electric low-pressure hot water boilers, air-source and ground-source heat pumps, solar-assisted heat pumps, biomass boilers, CHP/micro‑CHP, heat networks, solar thermal systems, microgeneration and wind turbines, plus associated hot- and cold-water systems, cylinders, tanks, flues, pumps, radiators, controls, smart thermostats, pipework cleaning/flushing and water treatment. Electrical works include complete and partial rewiring, upgrading, inspection, testing and certification (including Electrical Installation Condition Reports), consumer units and distribution equipment, protection devices (RCBOs, RCDs/RCCBs, AFDDs), earthing and bonding, power and lighting circuits, external and communal lighting, extract fans and ventilation-related electrical works, fire and carbon-monoxide alarm systems, and supply and installation of electric vehicle charging infrastructure. Mechanical works include mechanical ventilation with heat recovery, thermostatic mixing valves and boosted cold-water pump installations. Decarbonisation and energy measures include solar photovoltaic systems (with inverters, metering, monitoring and battery storage), solar thermal, heat pumps, biomass, CHP/micro‑CHP, heat networks, wind turbines, smart heating controls, sensors and other emerging low‑carbon technologies. The framework also supports retrofit, EPC and energy-assessment services such as pre/post Energy Performance Certificates, SAP10 assessments, retrofit assessments, PAS 2035 site visits, air-pressure testing, technical monitoring, cavity-wall borescope services and legionella risk assessments, and can include project management and delivery as individual property works, grouped schemes, planned programmes, responsive repairs, emergency works, grant-funded projects and larger retrofit or decarbonisation programmes. Suppliers must be able to deliver the overall range of works and services either directly or through their declared supply chain, and the framework is intended to remain flexible to respond to changes in legislation, technical standards, funding and technology.