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Contact Us

Please fill out the form below and one of our support representatives will reach out as soon as possible.

Williamson-Thermoflo® Support Services

Call 800-736-2378 and select from the following call options to reach a department specialist
Call Hours: Monday – Friday 7:30am to 4:30pm CST

consumer / homeowner support

(Option 1)

Direct Phone: (800) 736-2378

Hours: Monday – Friday, 7:30am-4:30pm CST

customer service support

(Option 2)

Direct Phone: 800) 736-2378

Hours: Monday – Friday, 8am-4:pm CST

Warranty Call Center

(Option 3)-For Distributors / Contractors

Direct Phone: (888) 821-0124

Hours: Monday – Friday, 7am-5pm CST

Email: wt.warranty@williamson-thermoflo.com

TECHNICAL SERVICES

(Option 4)-For Distributors / Contractors

📞Direct Phone: 800) 736-2378

⏲Hours: Monday – Friday, 8am-4pm CST

Purchase Information

If you are a heating contractor, please call your local wholesale distributor for pricing and availability

Locate a DistributoR

Main Office

N93W14635 Whittaker Way
Menomonee Falls, WI 53051

Phone: 800-736-2378

Eastern Distribution Center

Williamson-Thermoflo Pinnacle Freight Systems

500 Cedar Lane
Florence, NJ 08518