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5 Bathroom Mirror Mistakes That Can Make a Bathroom Look Smaller

June 15th, 2026
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Bathrooms aren't usually the biggest rooms in the house. That's why most people spend a lot of time thinking about tiles, storage, colours, and lighting when planning a renovation. The mirror, meanwhile, often gets chosen right at the end.

It seems simple enough. Pick something that looks nice, hang it above the sink, and move on.

The thing is, many home owners searching for bathroom mirrors in Ireland don’t realise how much a mirror can influence the look and feel of a bathroom. Get it right and the room can feel brighter and more open. Get it wrong and even a decent-sized bathroom can feel a bit cramped.

Here are a few common mistakes that are worth avoiding.

Going Too Small

A small mirror isn't always a problem, but in many bathrooms it ends up looking lost.

You've probably seen it before. A wide vanity unit with a mirror that looks like it belongs in a cloakroom. Instead of helping the room feel bigger, it draws attention to the empty wall around it.

A larger mirror tends to work much harder. It reflects more light, shows more of the room, and generally creates a greater sense of space.

That doesn't mean every bathroom needs a wall-to-wall mirror. But if you're deciding between two sizes, the slightly larger option is often the better choice.

Not Thinking About What the Mirror Reflects

Most of us focus on the mirror itself and forget about what's actually going to appear in it.

If a mirror is reflecting a dark corner or a plain wall, it's not doing much for the room. On the other hand, if it catches natural light from a window or reflects an attractive part of the bathroom, the whole space can feel brighter.

It's a small thing, but it makes a difference.

Before buying a mirror, it can be worth standing in front of the vanity area and thinking about what you'll see in the reflection every day.

Choosing Style Over Practicality

We've all done it. Seen something in a showroom, loved the look of it, and stopped thinking beyond that point.

Sometimes a mirror looks fantastic on display but isn't quite right for the bathroom it's going into.

Large decorative frames, for example, can look beautiful. But in a smaller room they can take up valuable visual space and make the area feel busier than it needs to.

Simple designs often work surprisingly well because they allow other features in the room to stand out.

Getting the Height Wrong

This is one of those mistakes that usually isn't noticed until after everything has been installed.

A mirror that's hung too high can feel disconnected from the vanity. Too low and it can make the space feel awkward.

Most people won't walk into the room and immediately know what's wrong. They'll just feel that something looks slightly off.

Getting the position right isn't difficult, but it's worth taking a few extra minutes to measure properly before making any holes in the wall.

Following Trends Too Closely

Bathroom trends change all the time.

A few years ago, one style was everywhere. Now it's something completely different. That's why it can be risky to choose a mirror simply because it's popular at the moment.

The best bathroom mirrors are usually the ones that suit the room rather than the latest trend on social media.

If you're renovating with the long term in mind, choosing something timeless often pays off.

Final Thoughts

A bathroom mirror might not be the first thing people notice when they walk into the room, but it has a surprisingly big influence on how the space feels.

The right mirror can make a bathroom feel brighter, lighter, and more spacious. The wrong one can have the opposite effect.

If you're planning a bathroom update and want to see different styles in person, Tilex has showrooms in Cork, Dublin, and Drogheda where you can explore a wide range of bathroom mirrors and find one that suits your space.

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