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Concord Lumber Corporation
55 White Street
Littleton, MA 01460
Phone: (978) 486-9877
Fax: (978) 952-2413
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 Warranty Service
We service the doors and windows that we sell. That includes Therma-Tru doors and Marvin, Andersen, Integrity from Marvin, and Jeld-Wen windows.
In fact, we're a member of the exclusive Andersen Dealer Service Network (DSN). Our service personnel have completed a factory training program and are authorized by Andersen Windows to perform service on their behalf.
Our service personnel have also received factory training from and are certified by Marvin and Jeld-Wen's Norco windows.
For all of these door and window products, we promise timely response to all service issues.
If you have a problem with any of the products we have sold you, send a Request Service with a description of the product and the problem. Be sure to include your name and phone number.
Or, call a sales rep at Littleton Lumber or Concord Lumber.
Littleton Lumber: 978-486-9877
Concord Lumber: 978-369-3640
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