Bathroom mirror cabinets

A mirror is a mirror. A mirror cabinet is a mirror plus the storage you didn’t know you needed plus, in most modern designs, the bathroom’s primary task light.

One piece doing three jobs in the space a plain mirror would have done one. It’s the single most efficient upgrade in a bathroom refurbishment, and the one most renovators skip because they think of mirrors and storage as separate decisions.

This article is about how to choose the right one, how to pair it with the vanity (mirror cabinets and vanities live or die together), and what to check on the lighting and electrical safety side.

Mirror cabinet vs mirror

Both reflect; that’s where the similarity ends.

• A bathroom mirror is a flat reflective panel mounted to the wall. It does one job. Cheapest of the three options at typically £30–£150 depending on size and frame.
• A mirror cabinet is a wall-mounted cabinet with a mirrored door (or doors). The reflection sits in front of concealed storage for toiletries, medication and daily items. Typically £100–£400 depending on size, lighting and features.
• An illuminated mirror cabinet adds integrated LED lighting around the mirror edges or behind a frosted strip, plus often a demister pad (clears the mirror after a shower) and sometimes a shaver socket. Typically £200–£600.

For most UK bathrooms the mirror cabinet earns its place: the reflective surface costs the same to install as a plain mirror, but adds storage capacity that would otherwise need a separate wall cabinet. For bathrooms with poor natural light, the illuminated version is the upgrade that genuinely changes daily use.

Types of mirror cabinet

Four types cover the UK range:

• Single-door. One mirrored door opening to reveal internal shelving. Suits widths 400–500mm and bathrooms where one person uses the cabinet at a time.
• Double-door. Two mirrored doors meeting in the middle, opening outward. Suits widths 600mm+ and shared bathrooms where two people might be at the basin together.
• Illuminated (LED). Built-in LED lighting around the mirror edges or behind a frosted strip, providing shadow-free task lighting at the basin. Often includes a touch-sensor switch on the front.
• Recessed. The cabinet sits flush in a stud wall, with only the mirrored door visible (no cabinet box projecting from the wall). The cleanest, most architectural look, but requires checking the wall cavity depth and confirming no pipes or cables run through the studs.

Demister pads are a common feature add-on across all four types. The pad sits behind the mirror, gently warms the surface, and clears condensation within a minute of switching on. Worth specifying if your bathroom doesn’t have a working extractor fan.

Pair it with your vanity

The mirror cabinet and the vanity sit together. They’re the bathroom’s most visible pair, and they need to look like they were chosen for each other rather than at separate moments. Three practical pairing notes:

• Match the widths. A 600mm mirror cabinet pairs cleanly with a 600mm vanity directly below. A 800mm mirror cabinet over a 600mm vanity looks oversized; a 400mm cabinet over a 800mm vanity looks meanly small. Same width is the safe call.
• Match the finish family. White gloss mirror cabinet with white gloss vanity reads as a pair. Mixed finishes (oak vanity, white cabinet) can work if they’re both in the same range and the contrast is intentional. Mixed finishes from different ranges almost never work.
• Buy them together where possible. Matched bathroom furniture sets that include the vanity, mirror cabinet and a tall unit are usually 10–20% cheaper than the same three pieces bought separately, and the proportions and finishes are guaranteed to coordinate.

For the matching set, browse bathroom furniture sets or pair directly with a vanity unit in the same range.

Lighting and bathroom electrical safety

Illuminated mirror cabinets are electrical fittings, and bathrooms are wet rooms. UK Building Regulations Part P and the IET Wiring Regulations divide bathrooms into zones based on how close a fitting sits to a water source. Mirror cabinets above a basin typically sit in Zone 2 (within 600mm of the basin edge) or just outside, depending on the layout.

What this means in practice:

• IP rating. Mirror cabinets in Zone 2 need an IP rating of at least IP44 (protection against water splashes). Most modern illuminated cabinets are rated IP44 or IP54; check the spec before ordering.
• Installation. Hard-wired mirror cabinets must be installed by a competent electrician, and Part P notifiable work covers any new electrical fitting in a bathroom. A plug-in cabinet (with a flex to a shaver socket) is simpler but limits placement to within reach of a socket.
• Shaver socket integration. Many illuminated cabinets include a built-in shaver socket, isolating the bathroom from mains voltage at the socket itself. Convenient and code-compliant.

None of this is a reason to avoid an illuminated mirror cabinet. They’re standard UK products and electricians fit them routinely. It’s a reason to plan the install properly rather than treating the cabinet as a pure decorating decision.

Mirror cabinet FAQs

What’s the difference between a mirror cabinet and a mirror?

A mirror cabinet has a mirrored door (or doors) that open onto concealed storage behind, plus often built-in LED lighting and a demister pad. A plain mirror is just the reflective surface. Both cost a similar amount to install; the cabinet earns its place by adding storage that would otherwise need a separate wall cabinet.

Are illuminated mirror cabinets worth it?

For bathrooms with poor natural light, yes. LED edge or strip lighting provides shadow-free task lighting at the basin, which makes shaving and makeup application meaningfully easier. Many illuminated cabinets also include demister pads (which clear the mirror after a shower) and shaver sockets, which add daily-use value beyond just the light.

Can I recess a mirror cabinet into the wall?

Recessed cabinets sit flush in a stud wall, with only the mirrored door visible from the room. They look the most architectural and free up no cabinet box projecting from the wall, but require the wall cavity to be deep enough (typically 100–150mm) and free of pipes and cables. Worth checking with a plumber or electrician before committing.

Do I need an electrician for an illuminated mirror cabinet?

For hard-wired units, yes. UK Building Regulations Part P makes any new electrical fitting in a bathroom notifiable work, which means a registered electrician needs to install and certify it. Plug-in cabinets (which connect via a flex to a shaver socket) avoid this, but limit the cabinet placement to within reach of a socket.

What size mirror cabinet should I pair with my vanity?

Match the widths where you can. A 600mm vanity pairs cleanly with a 600mm mirror cabinet directly above. Going larger (800mm cabinet over 600mm vanity) looks oversized; going smaller (400mm cabinet over 800mm vanity) looks meanly small. Same width is the safe pairing.

Filter the grid above by lighting, width, doors and mounting. To pair the cabinet with its vanity, browse vanity units or the matched bathroom furniture sets.

We’ve been supplying UK mirror cabinets since 1999, with a 4.8/5 rating from over 60,000 Trustpilot reviews, free UK delivery, a price match promise and 365-day returns, so the cabinet-and-vanity pairing is a low-risk one to commit to.

Big brands, small prices.