Customer Service
Online support
For help with Lennox Commercial Comfort Systems website, please call 1-877-570-0123. Online support is available from 7:00 am - 5:00 pm CST, Monday through Friday.
Contact a local Lennox representative
For a listing of phone numbers and addresses for Lennox' Commercial Comfort Systems district offices throughout North America, please visit our contacts page.
Customer Care
For general information about Lennox products, technical support, warranty and much more, please call 1-800-9-LENNOX (1-800-953-6669).
National Accounts Program
To obtain information about National Accounts programs or speak to a representative, please call 1-800-367-6285 or email NationalAccountsInfo@lennoxind.com.
