Terrazzo and microcement floors — are these seamless alternatives to tiles worth it?

Short answer: both give a SEAMLESS, grout-free floor, but they're very different products. TERRAZZO is a genuinely durable composite — chips of marble/glass/stone set in a cement or resin base, then ground and polished — traditionally poured in situ (seamless) or now often available as tiles/slabs; it's hard-wearing, looks high-end, and lasts, but poured terrazzo is a specialist, costlier install. MICROCEMENT is a thin (a few mm) cement-polymer coating applied OVER existing surfaces (floors, walls, even worktops) to give a smooth, seamless, contemporary concrete look with no grout lines — great for a modern seamless finish and for going over existing tiles, BUT it's a coating, so it relies on correct application and SEALING, can show wear/marks and hairline cracks if the substrate moves or it's poorly done, and needs re-sealing. Both need SEALING (they're porous-ish) and stone-safe care; done well they're a beautiful tile alternative, done cheaply microcement especially disappoints.

What they are: - Terrazzo: stone/marble/glass chips in a cement or resin binder, ground smooth and polished. In-situ poured (truly seamless) or precast tiles/slabs. Durable, premium, long-lasting — a serious floor. Poured is a specialist job (and pricier). - Microcement (micro-topping): a thin cement-polymer coating (2-3mm) troweled over an existing floor/wall/worktop to give a smooth, seamless, concrete-look finish with no grout lines. It's a surface coating, not a slab — its big selling points are seamlessness and going over existing surfaces with minimal build-up.

Vs tiles (the trade-offs): - Look: both seamless, no grout lines (the main appeal) — terrazzo = speckled/premium; microcement = smooth modern concrete. Tiles have grout lines but huge choice. - Durability: terrazzo is very hard-wearing; microcement depends heavily on application quality and the sealer — it can mark, wear or hairline-crack if the substrate moves or it's badly done. - Wet areas: both usable but need proper sealing (and microcement needs a competent waterproof system beneath in showers). - Maintenance: both need sealing and pH-neutral, stone-safe cleaning (like natural stone) — not harsh acids. - Cost: poured terrazzo is a premium specialist cost; microcement varies but the finish quality tracks the applicator's skill.

Crack/stain/seal: - Sealing is essential for both (porous-ish; unsealed = staining). Microcement is more prone to hairline cracks (substrate movement) and wear if poorly applied; terrazzo is tougher.

Common mistake: treating microcement as a cheap magic coating and getting a poor, quickly-worn finish — its result is ALL in the substrate prep, application skill and sealing. Both are lovely seamless alternatives when done properly; get a tiling and flooring specialist experienced in the specific finish, and keep it sealed. Anyone lived with microcement or poured terrazzo — how's it held up?