Learn how a house gets hardened

The questions, the ratings, and the notes from the people who used to arrive after the door gave way.

Most of what we know about keeping a house hard to break into fits on these pages. Start with the FAQ if you have a specific question, the ratings explainer if you want to know what a tested rating actually covers, and the notes if you want the reasoning behind each fix.

Latest notes

All notes

What we install

Ask it in person

The free assessment is the fastest way to learn what your own doors need. Thirty minutes or less, and the report ranks what to fix first.