Thermo-Tech Premium Windows and Doors
  • Thermo-Tech Support

    Thermo-Tech Support

    Commitment to service excellence.

Swift service is just a call (or click) away.

Thermo-Tech Windows is committed to providing quality products constructed to our high standards of excellence. Even with our impressive record, there may be an instance when a product concern arises that requires our technical expertise. Our knowledgeable staff is ready to help!

Before calling or filling out the Parts & Service Request Form below we encourage you to contact the dealer who your windows were purchased through (if known). They may be able to provide you important information that will expediate your service, such as sales order number of window/door type.

Our Service Department

7:00 a.m. – 5:00 p.m. (CT)

Phone: 1-320-529-4012 ext. 600
Fax: 1-320-529-4017
Toll-Free Phone: 1-888-826-4944
Toll-Free Phone: 1-877-565-0159 ext. 600
Toll-Free Fax: 1-877-565-0160

Parts Directory

Parts & Service Request form


In light of the increasing Covid-19 restrictions in Minnesota and surrounding states, and with an abundance of caution for the health and safety of our technicians, sales reps and customers, Thermo-Tech Windows will not be performing field service through December 18, 2020.

As we near that date, the company will be reassessing the situation to determine if the technicians will be back in the field. We will continue to process orders and service requests throughout this time so that when the situation improves, we can schedule work without further delay.

If you should have any questions, please feel free to contact our Customer Service Team.

Please fill out the form below. A Service Department representative will contact you after your request has been received.

IMPORTANT: Missing or incomplete information may cause delay in service completion.


    Dealer Name






    Yard Contact

    Original Order #

    Original Order Date

    Job Name*





    Home Phone*

    Cell Phone

    Work Phone


    Closing Date

    Type of Window/Door
    CasementDouble-HungSingle-HungSliderAwningFixedShapeEllipse/Half RoundPatio Door

    Size of Window/Door (Frame Dimensions)*

    Color of Window/Door
    Dark OakLight OakWhiteTanSandlewood

    Grid Pattern
    No GridsColonialPrairieQueen Ann

    Grid Material
    5/8 Aluminum Bar - Flat5/8 Aluminum Bar - Contoured3M Accentrim*
    *Please note: Accentrim is no longer available for replacement glass.

    Description of Work Request*

    Glass Unit Only
    Seal DefectSeal CrackSurface Flaw

    If Surface Flaw, Please Describe

    Visible Glass Size

    Visible Glass size is glass surface measurement vinyl to vinyl.

    Ship ReplacementDeliver/Install Replacement (Labor charges apply after first year.)

    IMPORTANT: Provide accurate sash or glass measurements. Field measurements ARE chargeable on an hourly basis after first year.

    Directions to Job Site

    Enter Your Email Address For Confirmation*

    Notify Others Of Your Request

    Upload Picture (jpg format, Maximum file size: 4mb/4000kb)
    Upload Picture (jpg format, Maximum file size: 4mb/4000kb)
    Upload Picture (jpg format, Maximum file size: 4mb/4000kb)

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