What Are Concealed Hinges?

When it comes to modern door hardware, concealed hinges have become the go-to solution for architects, designers, and homeowners looking for a sleek, minimalist aesthetic. Unlike traditional exposed hinges, concealed hinges are completely hidden when the door is closed, creating a seamless, high-end appearance.

At Expert Crown Moulding we are proud to provide concealed hinge machining and precision installation as part of our Expert door installation service. Did you know we also install European mortised locksets?

Among the top concealed hinge manufacturers, Simonswerk Tectus stands out for its precision engineering, durability, and innovative design. In this guide, we’ll explore why you should use concealed hinges, the key benefits, and the most popular Simonswerk Tectus models to consider for your project.

Concealed hinges, also known as invisible hinges, are installed inside the door and frame, making them invisible when the door is closed. This design provides a clean, uninterrupted look, which is essential for modern and luxury interior designs.

Unlike standard hinges that require bulky hardware visible from the outside, concealed hinges offer a flush-mounted solution that blends seamlessly with the door and surrounding walls.


Why Choose Concealed Hinges?

1. Aesthetic Appeal

Concealed hinges contribute to a modern, minimalist design by eliminating visible hardware. They’re perfect for contemporary homes, high-end offices, and luxury hotels where every detail matters.

2. Smooth and Silent Operation

Simonswerk Tectus hinges feature maintenance-free bearings, ensuring ultra-smooth, quiet operation. This is a significant upgrade over traditional hinges, which can creak or become stiff over time.

3. Durability and Strength

Made from high-grade materials, concealed hinges are designed to handle heavy doors without sagging or warping. The Simonswerk Tectus line includes models capable of supporting doors up to 660 lbs (300 kg).

4. Adjustable for a Perfect Fit

Most concealed hinges, including Simonswerk Tectus models, allow for 3D adjustability. This means you can fine-tune the position of the door without having to remove it, ensuring a perfect alignment.

5. Improved Security

Since concealed hinges are hidden within the door frame, they offer enhanced security by preventing tampering or forced removal—an important feature for high-security buildings.


invisible hinges, concealed hinges

Most Popular Simonswerk Tectus Concealed Hinges

Simonswerk offers a range of concealed hinges tailored for different applications. Here are some of the most common models and their key features:

1. Simonswerk Tectus TE 240 3D

  • Designed for lightweight doors up to 88 lbs (40 kg).
  • Ideal for interior residential applications.
  • 3D adjustability for easy alignment.

2. Simonswerk Tectus TE 340 3D

  • Supports doors up to 176 lbs (80 kg).
  • Suitable for standard interior doors in homes and offices.
  • Available in various finishes, including stainless steel and black.

3. Simonswerk Tectus TE 540 3D

  • Handles doors up to 264 lbs (120 kg).
  • Great for high-traffic commercial spaces.
  • Flush-mounted for a completely seamless look.

4. Simonswerk Tectus TE 640 3D

  • Supports heavy-duty doors up to 352 lbs (160 kg).
  • Commonly used in luxury homes, hotels, and upscale commercial properties.
  • High corrosion resistance for long-lasting performance.

5. Simonswerk Tectus TE 680 3D

  • Rated for doors up to 440 lbs (200 kg).
  • Features advanced self-closing technology.
  • Excellent for large pivot doors and high-end design applications.

6. Simonswerk Tectus TE 740 3D

  • Handles doors up to 660 lbs (300 kg).
  • Designed for ultra-heavy doors, such as soundproof or fire-rated doors.
  • Used in industrial and commercial spaces requiring extreme durability.

Choosing the Right Concealed Hinge for Your Door

When selecting a concealed hinge, consider the following factors:

Door Weight & Size – Heavier doors require robust hinges like the TE 640 3D or TE 740 3D.
Usage & Environment – High-traffic areas need durable, maintenance-free hinges like the TE 540 3D.
Aesthetic Preference – Simonswerk offers different finishes to match your interior design.
Security Requirements – Concealed hinges add an extra layer of security for homes and businesses.


How We Ensure Precision Installation for Concealed Hinges

Simonswek Tectus Jig for precision machining of concealed hinges

Installing concealed hinges requires millimeter-accurate routing and precision drilling. Our team uses specialty tools like Tectus precision jigs and templates to ensure a flawless fit every time, preventing issues like sagging, misalignment, or uneven door gaps.

Our Installation Process:

  1. Consultation – We assess your door type and select the ideal Simonswerk Tectus hinge.
  2. Precision Routing – Using specialized jigs and laser guides, we cut perfect hinge recesses.
  3. Installation & Adjustment – Hinges are securely mounted and fine-tuned for a smooth, silent operation.
  4. Final Testing – We ensure doors open and close effortlessly without resistance.

Conclusion: Upgrade to Concealed Hinges for a Sleek, Modern Look

Whether you’re renovating a home, designing a luxury office, or upgrading commercial spaces, concealed hinges provide the perfect combination of style, function, and durability. Simonswerk Tectus hinges stand out as the industry leader, offering top-tier precision and high-quality engineering.

Looking to install concealed hinges with expert precision? Contact us today for a consultation and let us help you achieve the seamless, modern look you desire.