How to properly build an invisible inspection opening – professional instructions for seamless maintenance access.

Magnetsystem für unsichtbare Revisionsöffnung hinter Fliesen – Montage in Ytong bei Badewanne

Introduction

Inspection openings are simply indispensable – especially for bathtubs and any pipe access points.
However, many solutions are visually disruptive because they remain visible and interrupt the tile pattern.

Modern magnetic systems allow for the creation of invisible access panels that
✔ stable,
✔ durable and
✔ are concealed flush behind tiles.

In this guide, we show drywallers, tilers, and DIY enthusiasts how to professionally create an invisible, removable tile .


Why even have an inspection opening?

An access panel allows access to:

  • Sewer connections and overflow fittings for bathtubs

  • Hot and cold water pipes in risers

  • For water meters

  • Electrical components (e.g. cable assemblies and LED power supplies)

  • Maintenance areas in partition walls and drywall constructions

Without access, later repairs are complex and expensive .

A maintenance opening is only unimportant until you need it.


Problem of classic access panels

Traditional systems have disadvantages:

problem impact
Visible frames / flaps Interrupt the design
Unclean joints Visually striking at first glance
Mechanical closures Wear and tear, rattling, jamming
High overall height Problems with thin tiles

This is no longer considered modern in contemporary bathrooms and designs with minimal grout lines.


Solution: Magnetic system with removable tile in almost any size

During an invisible inspection, the tile is accessed via:

  • Magnets

  • Metal counter plates

  • concealed mounting modules

attached.
This way the tile pattern remains completely closed , the tile can be removed and access is possible at any time.


Material & Construction

Suitable for: Drywall, building panels, solid construction

Needed:

  • Magnetic holder (e.g. REVIMAG base module)

  • Magnetic screws

  • metal plates

  • Building panels or partition wall

  • Silicone/joint material

TIP: We use the Powerbond XS 330 from Innotec to attach the metal plates. 


Assembly steps

1. Plan the position

Define access points, e.g., under the bathtub.
Mark module position.


2. Assemble the modules

Install modules in building boards / plasterboard or masonry.
Mounting depending on the system:

3. Prepare the tile

Mark the back side, degrease the metal plates and glue them in place.
Place flat and press firmly. → Maximum adhesion.

4. Insert tile

Place the tile, check the magnetic force, align it and
Adjust the height if necessary.

5. Close the joint

Make the joint elastic:

  • finely circumferential, color-matched silicone joint

Do not grout with cementitious grout → tile must remain removable.


Maintenance & Disassembly

The tile can later be removed using a suction cup or handle.
No damage, no prying required.


Advantages of invisible revision

Advantage To use
Invisible Perfect tile pattern
Adjustable Millimeter-precise alignment
Redeemable Accessible without destruction
No frame Clean & minimalist
For all tile formats Suitable for large format

Conclusion

An invisible inspection opening combines design and function .
With a modern magnetic system like REVIMAG, the tile can be:

  • Securely fasten

  • remove at any time

  • visually integrate perfectly

This creates a clean, modern bathroom without visible access panels – but with full maintenance access.



Do you want to implement this solution?
REVIMAG offers modular magnetic holders for:

  • Building panels

  • Drywall

  • masonry

  • Wooden substructures

Suitable for professionals and DIY enthusiasts.
Solutions for all tile formats and installation heights.