Once the least energy efficient areas have been identified, work will start on showing households how they can use affordable measures to reduce their bills. According to the Energy Saving Trust, households could be paying over £100 extra a year on their heating bills if their lofts are not properly insulated.
Councillor Tim Ashton, the cabinet member for environment and planning at Lancashire County Council, said: "Cutting down on energy use makes sense at all times, and in the current economic climate anything we can do to help families and firms to cut costs is very welcome."
Contributions from the Energy Saving Trust, the Northwest Improvement and Efficiency Partnership and 15 councils across Lancashire have helped to fund the project.
All households in the UK are now eligible to take part in the government's boiler scrappage scheme, which allows people to trade in their old inefficient boiler for money off a new model or a heat pump.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.