Anna Becker
Author in the guide

Anna Becker

Locking-technology expert Munich

Anna inspects doors after break-ins and writes reports for insurers. She sees every day what holds up and what only looks expensive.

LocksBurglary protectionMaster-key systems
About Anna

From the trade to the guide

Anna inspects doors after break-ins and writes reports for insurers. She sees every day what holds up and what only looks expensive.

Articles by Anna

All articles
Security and burglary protection

Securing a rented flat without major works: what really helps

Even as a tenant you can make your flat much safer without major works. Which upgrades really help, without landlord trouble.

June 19, 2026 · 8 min read
Security and burglary protection

Hamburg brick and period buildings: upgrading front doors in the Schanze and Eimsbuettel

An old brick front door in the Schanze can be made secure without losing its character. How it works, what it costs, and where the limits are.

June 11, 2026 · 9 min read
Maintenance and DIY

Retrofitting 1950s and 1960s front doors in Hanau instead of replacing them

The typical doors from Hanau's post-war reconstruction can usually be retrofitted rather than replaced. What really counts on a 1950s door, and where replacement is the more honest answer.

June 11, 2026 · 8 min read
Security and burglary protection

Hillside and half-height Stuttgart: burglary protection for houses with several entrances

On a Stuttgart slope the street front door is rarely the problem, but the valley side and the cellar are. How to secure a house with many entrances as a system.

June 9, 2026 · 8 min read
Maintenance and DIY

Retrofitting front doors in Dortmund: securing miners' colonies and postwar houses

The old front doors in Dortmund's miners' settlements and 1950s houses rarely need throwing out. Usually a clever retrofit does it. What holds, what it costs, where to begin.

May 29, 2026 · 9 min read
Emergency and quick help

Damage-free door opening: is it always possible

Non-destructive opening works often, but not always. When a door opens without damage, when drilling is needed and how to spot needless drilling.

May 28, 2026 · 7 min read
Security and burglary protection

Heritage-compliant burglary protection on the Mathildenhöhe: securing Art Nouveau doors

An Art Nouveau door on the Mathildenhöhe can be secured effectively without sacrificing its substance. Reversible, discreet, heritage-compliant. Here is how I tackle lock, hinges and frame.

May 14, 2026 · 7 min read
Frankfurt local

How fast is the locksmith there? Call-out times across Frankfurt districts

How long you wait for a locksmith depends heavily on the district. Realistic call-out times for central and outlying Frankfurt areas.

May 2, 2026 · 7 min read
Security and burglary protection

Burglary protection for Art Nouveau front doors in Wiesbaden

A listed Art Nouveau door in Wiesbaden can be secured effectively without touching the substance. Where cylinder, strike plate and hinges really count.

April 22, 2026 · 8 min read
Security and burglary protection

Protecting the Bremer Haus: burglary protection for the terraced build

The Bremer Haus has three typical weak points: the basement window, the old front door and the garden access. How to secure them in the right order.

April 17, 2026 · 7 min read
Prices and scams

What an honest locksmith will never charge you for

Some line items have no place on an honest invoice. Which ones they are, what a fair door opening costs in Frankfurt, and where the tricks begin.

April 10, 2026 · 7 min read
Security and burglary protection

Securing Bonn's Suedstadt: how to protect a Gruenderzeit flat

Bonn's Suedstadt is a picture-book Gruenderzeit quarter. That is exactly what makes securing it demanding. What really counts on century-old doors.

April 9, 2026 · 8 min read
Maintenance and DIY

What to do with old keys after a lock change

After a lock change the old keys sit around. Which to keep, which belong in scrap and why the household bin is a bad idea.

March 15, 2026 · 7 min read
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