The energy flow in your Iowa, SD, or Nebraska home may include heat going out through walls and windows, or sunshine challenging your AC to work harder as it heats the roof and attic. Home energy audits trace the flow of energy using logical and technical strategies, helping you to reduce the amount you spend on gas, electricity and other sources. Residential energy audits can often find surprises such as uninsulated outside walls that you thought were full of insulation. Commercial energy audits address process and activity energy usage patterns as well.