Indoor polished concrete floors in Perth

Perth winters get colder than most newcomers expect. Polished concrete absorbs and releases temperature with the slab itself, so on a 12°C morning your floor is 12°C. No rug, no shoes, no fun.

Three viable solutions, in order of preference:

1. In-slab hydronic heating — installed during the pour, becomes invisible. Best Perth solution but adds 15-20% to slab cost.
2. Large area rugs in living zones — pragmatic and reversible. Use rug pad to protect the polish.
3. Slippers / floor heaters — works for most households, especially if winter mornings are short.

Side note: in summer the thermal mass is a major plus. A house with polished concrete floors stays 4-6°C cooler than a tile or carpet equivalent through 40°C Perth days without running the air-con as hard.

Polished concrete reflects light. That's the point. But it means how the floor looks varies dramatically with the lighting design of the room.

What we've seen happen:

• Down-lights directly above show every tiny scuff and footprint as glaring reflections
• Soft wall-wash or pendant lighting makes the floor look luxurious and forgiving
• Large north-facing windows in winter make the floor look almost silver-grey
• Warm-tone uplighters bring out the warm hues in cream and tan polished mixes

Discuss this with your interior designer or lighting consultant. The wrong lighting choice can make a perfectly poured floor look constantly dirty.

Concrete needs control joints to manage thermal movement. These joints are cut straight lines across the slab — typically 3-4m apart, sometimes more for smaller spaces. They're permanent and visible.

Good joint placement aligns with architectural lines — under door frames, at column centres, parallel to walls. Bad joint placement crosses the middle of the room in awkward angles or creates Tetris-shaped sections.

We always sketch the joint plan with the builder during the slab design phase. If you're renovating and inheriting an existing slab, ask to see the joint locations before finalising the polished concrete decision.

The most-asked question we get from homeowners with dogs: "will the claws scratch the floor?" The answer: no. Polished concrete is significantly harder than tile, hardwood, or laminate. Dog and cat claws can't scratch it.

What dogs DO see in polished concrete is the reflection — which can confuse some dogs for the first few weeks, especially around night time when the floor reflects ceiling lights. They acclimate.

The genuine pet concern is hardness — older or larger dogs may find polished concrete uncomfortable to sleep on without a bed/mat. That's a furniture decision, not a floor decision.

Most floor types make maintenance promises they don't keep. Polished concrete is the exception — the maintenance is genuinely minimal:

• Daily: Sweep or dust-mop. That's it.
• Weekly: Damp mop with warm water. No chemicals needed.
• Monthly: Spot check for any sealant breakdown near high-traffic zones.
• 5-7 yearly: A burnish + re-polish pass to restore the deepest shine. Half-day job.

No grout to clean. No tile to crack. No timber to oil. No carpet to replace. This is why commercial spaces with high traffic increasingly pick polished concrete — the maintenance budget over a decade is fractional.

The best polished concrete floors are installed during a new build. The slab is poured with the specific aggregate exposure you want, control joints are designed in, and the polishing happens after the rest of the building is sealed.

Retrofit polishing an existing slab is possible but limited. We inspect the existing slab and look for: original mix quality, surface condition, depth of cover over reinforcement, age. Slabs older than 30 years are often not worth the polish work — the original concrete just won't take it.

If a retrofit is borderline, a polished overlay (6-15mm thin polished topping over the existing slab) is usually the right answer. Looks the same, costs less than a tear-out + re-pour.