How secure is a garden room?
6 Nov 2025

Over the past few years, we’ve seen more and more homeowners turning to garden rooms to add extra space without the hassle or expense of a full extension, or the stress of moving house. Gone are the days when garden rooms were just glorified sheds or summer houses. Today, they’re stylish, versatile spaces you can enjoy all year round.
But one question we’re often asked is: “How secure is a garden room?” And that’s exactly what we’re going to cover.
Garden room security
A garden room is a significant investment. Whether you plan to use it as a home office, a personal gym, or an entertainment space to escape and relax, you want to know that both the structure and its contents will be secure, especially if it will house high-tech gym gear, personal devices or an expensive TV.
The good news is that modern garden rooms are very secure. They have insulated timber frames, double-glazed windows and solid doors, often to the same standards as residential buildings. This means they’re far more secure than older-style outbuildings, summer houses or sheds. Now let’s break down these aspects in more detail.
The structure itself

Our garden rooms are constructed using robust, Structural Insulated Panels (SIPs), insulated board and a solid timber framework. This multi-layered construction - combining the panels, board, a foil membrane and black, waterproof breather membrane, and the outer cladding - creates a structure that is incredibly strong. This, as well as the roof panels and roofing membrane, will stand up to the harshest weather conditions.
Windows and doors

The most common points of entry for any building are its doors and windows. You wouldn’t secure your home with flimsy glass panels or an MDF door, so why would reputable garden room manufacturers do the same?
At Outside In, as standard, we fit UPVC double-glazed windows and doors. To give our customers the satisfaction of knowing their property is safe and sound behind locked doors, we’re partnered with Precision Windows and Doors, who provide our UPVC windows and doors, and Express Bi-Folding Doors who supply premium aluminium bi-fold doors and windows.
Precision has taken the time to choose the best profile available on the market and one that meets and exceeds the latest industry standards, providing peace of mind to know that you are buying quality-BSI-approved products that are internally glazed for enhanced security. Other advantages of quality glazing are less noise, virtually no maintenance and reduced energy bills.
The addition of integral Venetian blinds within the glazed units allows for better control of light while providing added security with no need to clean endlessly!

We also offer an optional upgrade to aluminium bi-fold doors, which come from Express Bi-Folding Doors.

The windows and doors from both Precision and Express offer:
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Double-glazed windows and doors
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Multi-point locking systems
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Key-operated locks
The reliability of our partners is crucial in our commitment to delivering quality. Just as we ensure our garden rooms are built to the highest standards, Precision and Express share our ethos of providing reliable, top-notch solutions. The windows and doors fit seamlessly into our designs, enhancing both the functionality and visual appeal of our garden rooms.
A solid, trustworthy supply chain is key to everything we do. Precision and Express have always delivered amazing service and products, essential to our overall end product and customer happiness.
Mel Russell, Outside In
Outside In Garden room

So, whether you're working from home, working out, or simply relaxing, our garden rooms are ready to cater to your every need.
If you have any more questions about the security and construction of our garden rooms, please don’t hesitate to get in touch. We’d be delighted to discuss your project.