Locate an Xcel Energy Registered Contractor Contractors who are registered for one rebate program ARE NOT necessarily registered for ALL rebate programs. Not all programs require you to use a registered contractor, but we recommend it because these contractors are more likely to have knowledge about available rebates.   Select One     I am looking for a contractor, to do a single improvement     I am looking for a home energy auditor     I am looking for a Home Performance contractor, to do several improvements   By participating in any Xcel Energy rebate program, you understand and agree that Xcel Energy is not responsible in any way for your selection of any HVAC or other contractor that will perform work for you, or for the work performed by any contractor you choose. It is solely your decision to choose the appropriate contractor for any work you choose to have done relating to a rebate program. You agree that you will not bring any claim against Xcel Energy relating to any work that any contractor performs, because that arrangement is between you and the contractor only. For general questions about Xcel Energy’s Colorado residential rebate programs, please call 1-800-895-4999.