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DIY Instructions

Therma-Tru Installation Instructions

We want to ensure that the process of installing your Therma-Tru door is as easy and stress-free as choosing the door. Here you can find easy-to-follow instructions and downloadable PDF print guides for both entry and patio doors.

Get instructions on everything from measuring and preparing the opening, to installing hardware and components, to weather proofing and maintaining your new door for years of trouble-free performance.

Entry Door Installation Instructions

Fiber-Classic & Smooth Star Hinged Patio Door Installation Instructions

Fiber-Classic & Smooth-Star Sliding Patio Door Installation Instructions

Slim-Line Sliding Patio Door Installation Instructions

Vinyl Sliding Patio Door Installation Instructions

Commercial Door Installation Instructions




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