Efficiency Promise

We pay 100% of your Efficiency Promise difference

It's easy to make a promise, but it's much harder to keep one. With every new Lillian Custom Home, we promise energy efficiency through lower utility bills. To make the commitment of energy efficiency tangible, we have partnered with Efficiency Promise to provide a guarantee on the energy used to heat and cool your home. If the combined actual usage of electricity or natural gas exceeds the amount guaranteed on your home, Efficiency Promise will pay 100% of the difference for the first 2 years after your home is complete!