Save $85 on a Furnace Tune-Up Just like your car needs regular maintenance, so do your heating and air conditioning systems. Washington Gas offers an $85 furnace tune-up service rebate to help your heating system run more efficiently and last longer. Consider having a professional check the health of your natural gas furnace to ensure your system is operating safely and efficiently. Rebate on Furnace Tune-Up Service Eligible Equipment Item & Efficiency Requirement Rebate Furnace Tune-Up* Service provided by EmPOWER Contractor $85 *Natural gas furnaces are eligible for tune-up rebates once every three years. Click here to see what’s included in a furnace tune-up service. Let’s Get Started 1 Find a participating contractor in our EmPOWER Network. 2 Have your participating contractor perform your furnace tune-up. 3 Your contractor will submit a rebate application for you. You’ll get your rebate on the contractor invoice or receive a check in the mail within six to eight weeks. Find Contractor Energy Assistance If you’ve fallen behind on your energy bills, we may be able to help. We offer income-qualified residential customers energy assistance to help manage their bill.