To qualify for high-efficiency rebates, work with a participating contractor in the EmPOWER Contractor Network to install eligible natural gas equipment. Use our contractor search to find a qualified and licensed participating contractor. Use our contractor search to narrow the list of qualified and licensed participating contractors that work in your area. Please note: Washington Gas does not guarantee contractors’ work and recommends that you check references. After selecting a participating contractor: Work with them to select qualifying high-efficiency equipment or services for your home. They will install qualifying high-efficiency equipment or complete the service. They will then submit a rebate application on your behalf. You’ll receive a rebate on the contractor’s invoice or via a check in the mail within six to eight weeks of completing the application. Please confirm with your contractor whether your rebate will be on the invoice or sent in the mail.