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microcement vs tiles

Microcement vs Tiles: Cost, Durability and Where Each Wins

Microcement or tiles? Compare UK installed costs per m², waterproofing, lifespan and looks, plus what it means for a new rear extension floor.

The Extension Works 23 October 2026
Microcement vs Tiles: Cost, Durability and Where Each Wins

Microcement vs Tiles: Cost, Durability and Where Each Wins

Microcement and porcelain tile floors compared

Tiles are cheaper upfront, and microcement is better where you want one seamless surface. In the UK, mid-range tiling typically costs £60 to £120/m² installed, against £100 to £220/m² for microcement. The right choice depends on the room, the substrate underneath, the look you want and, above all, who lays it.

We design and build single-storey rear extensions, so we see this decision at the point where a new kitchen-diner, utility or shower room needs a floor. This guide covers the costs, the waterproofing rules, maintenance, lifespan and the situations where one clearly beats the other.

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TL;DR

  • Tiles usually cost 20 to 40% less upfront. The gap narrows when microcement goes over an existing surface and saves demolition.
  • Microcement is water-resistant, not waterproof. In showers and wet rooms it needs a proper tanking membrane beneath it.
  • Microcement suits seamless floors, underfloor heating and curves. Tiles suit pattern, mosaic and herringbone layouts.
  • Microcement depends heavily on the installer’s skill. Ask exactly what tanking and how many layers are in the quote.
  • Choose your finish before the build is priced, so levels and floor build-up are right from the start.

Table of Contents

What you are actually comparing

Tiles are individual hard units (porcelain, ceramic or stone) fixed with adhesive and joined by grout. Microcement is a thin, polymer-modified cementitious coating, about 2 to 3 mm thick, trowelled on in layers: primer, mesh, base coats, finish coats and a protective sealer.

That difference drives everything else. Tiles are a product you can inspect before it goes down. Microcement is a system, and the finished result is the sum of preparation, layer timing and the hands that applied it. Tiles also carry joints, and those joints are both their weakness (dirt, mould, cracked grout) and their strength (they absorb a little movement and give you texture and grip).

Cost: what you will really pay

The published UK ranges from an installer-run comparison are:

Mid-range tiling Microcement
Installed cost £60 to £120/m² £100 to £220/m²
Upfront position Typically 20 to 40% cheaper Premium of 20 to 40%
Wet-zone systems Tanking still needed Costs rise with complex sealer systems

Source for the figures: Microcement Finishes’ cost comparison. Treat them as guide ranges, not quotes. London and the South East usually sit at the upper end of any trade range.

A second UK guide puts microcement at £100 to £180 per m², which sits inside the same band.

When the gap closes

The cost gap narrows in renovations. Because microcement can be applied directly over sound existing tiles, you can avoid £20 to £40/m² in demolition and disposal. A thin overlay also saves you altering door thresholds and skirting heights.

New-build floors, such as an extension slab, are different. There is nothing to strip out, so the full upfront premium applies. What you gain is continuity: one floor running from kitchen to garden doors with no thresholds or grout.

A worked example

Take a 20 m² kitchen-diner floor in a new extension. At the published ranges, tiling comes to £1,200 to £2,400 and microcement to £2,000 to £4,400. That is simple multiplication of the figures above, not a quote. Choosing a premium tile (large-format porcelain, natural stone) can erase the difference, because the ranges above refer to mid-range tile.

For how the finish sits within the wider budget, see our guide to extension cost per m² in the UK.

Waterproofing: where most failures start

This is the section that matters most if you are thinking about a bathroom, shower room or wet room.

Microcement is water-resistant, not inherently waterproof. One London specialist says that most bathroom failures come from skipped or skimped tanking, not from the material itself. In a wet area, the waterproof layer is a proprietary tanking membrane system beneath the finish. The same is true of tiles: tile and grout are not waterproof either.

On the tiling side, BS 5385-1 (2018 revision) calls for wet-area substrates, including domestic showers, to be waterproofed with a suitable proprietary tanking system before tiling. NHBC Standards also say that gypsum plasters should not be used where repeated or persistent wetting may occur, and that wet-area backing surfaces may need protection.

For wet rooms, tanking is the expectation under the British Standard, and it is also advised for powerful domestic showers. If you want to understand what a compliant waterproof resin floor system does and why the membrane carries the load, ask the installer to explain their build-up layer by layer.

Tanking membrane beneath tile or microcement finishes

The quote test

The cheapest microcement bathroom quote is often cheap because the labour-heavy tanking layer has been left out. Before you sign, ask:

  1. Which tanking system is included, and by which manufacturer?
  2. How many coats and what sealer are specified?
  3. How long is the curing time between layers?
  4. What guarantee covers the finished surface and the waterproofing separately?

A promise of a three-day turnaround is a red flag, since each layer needs to cure properly.

Safety note: a failed wet-area membrane can cause hidden structural water damage. If you suspect a leak or damp behind an existing finish, have a qualified damp or waterproofing surveyor look at it before anything is laid on top.

Durability and lifespan

With proper professional installation and maintenance, UK microcement is generally expected to last 10 to 20 years. Good porcelain tile can outlast that, which is why some installers say high-quality tiles generally win on long-term durability.

The weak points differ:

  • Microcement: cracks if the substrate moves. Because it is a monolithic skin, even minor movement can show as a crack with no grout line to hide it. Sealer wear in high-traffic wet zones may need a professional refresh roughly every 3 to 5 years.
  • Tiles: individual tiles chip or crack under impact, grout stains and can grow mould, and silicone beads in wet areas may need replacing every 2 to 3 years.

So neither is maintenance-free. Microcement trades frequent small jobs (re-siliconing, regrouting) for a rarer professional job (resealing).

Maintenance and mould

With no grout lines, microcement gives dirt, soap residue and mould fewer places to settle. Cleaning is simple: neutral, non-abrasive cleaners, and none of the harsh chemicals that degrade the protective topcoat.

Mould can still appear on any surface if a bathroom is poorly ventilated, so an extractor fan that is sized and used properly matters more than the finish. Tiles are easy to clean on the face, and the work is in the grout: sealing it and keeping it clean.

Looks and design freedom

This is where the choice often gets made.

  • Choose microcement for a calm, uninterrupted surface, walls and floors in one material, curved edges and a modern, continuous look.
  • Choose tiles for pattern, colour and contrast. Herringbone, mosaic and patterned encaustic designs are tile territory, because microcement is fundamentally a joint-free material.

Grip is another practical point. A smooth sealed floor can be slippery when wet, so in showers ask about the anti-slip additive in the sealer. Textured tiles give you more choice here.

Underfloor heating and open-plan floors

Microcement is strong where floors run on continuously: open-plan spaces, underfloor heating and renovation over existing tile. Tiles are also an excellent partner for underfloor heating, since stone and porcelain conduct heat well. The difference is mostly visual. A rear extension with a kitchen flowing into a dining area and out through wide doors is where an unbroken floor makes the biggest visual difference.

Installation time and DIY

Do not treat microcement as a weekend job. Despite what kit marketing suggests, it is not DIY-friendly: failure rates for first-time DIYers are high, and correcting a failed job costs more than paying a professional initially, because it needs specialist removal and substrate preparation. One UK guide gives a typical timescale from around four days upwards, depending on area and layers.

Tiling is more forgiving of mediocre workmanship, though a poorly tiled floor still shows uneven lippage and cracked grout. With microcement, the installer’s reputation matters more than the brand of material. Ask to see finished jobs of the same type (a floor, a shower) and speak to previous customers.

Quick decision guide

Your situation Better fit
Tightest budget Tiles
Renovating over sound existing tile Microcement
Seamless open-plan floor Microcement
Pattern, mosaic or herringbone Tiles
Fully submerged or heavy-use wet area Tiles
Unstable or moving substrate Tiles, or fix the substrate first
Want to lay it yourself Tiles

Our perspective: choose the finish early

We build single-storey rear extensions, with design, planning and construction handled by one in-house team and a fixed VAT-inclusive price. From that vantage point, the tile or microcement decision is less about fashion than about timing.

Our perspective: choose the finish early — overview diagram

The floor finish changes the build-up. Tiles and adhesive add thickness, and a thin microcement skin adds very little. If the extension floor must meet existing levels, or you want level thresholds at the garden doors, the finish needs to be known while the design is being drawn, not after the slab is poured. Our live 3D modelling is useful here, because you can see how a continuous floor looks in the room before anything is built.

Our honest advice for a typical rear extension kitchen-diner is this. If you love the seamless look and have a budget for it, microcement is a legitimate choice, provided the slab is stable and cured and the applicator is a specialist. If budget is tight, or you like pattern, quality porcelain tiles are a great floor and nothing to apologise for. In either case, specify the finish with the other trades in mind: drainage, doors and heating. Our guides on level threshold patio doors and drainage checks for extensions show how those pieces connect.

— Esskay

Planning a rear extension? Price it before you pick the floor

If the floor you are choosing is going into a new extension in Sutton, Morden or the surrounding area, get the build priced first. Our instant extension quote tool lets you design and price a single-storey rear extension online, with no sales visit. Booking carries a one-off £499 booking fee, and the price you are given is fixed and VAT-inclusive, with a 12-month workmanship warranty.

FAQ

Is microcement cheaper than tiling?

Not usually. Typical UK figures are £100 to £220/m² for microcement and £60 to £120/m² for mid-range tiling. The gap shrinks when microcement goes over existing surfaces and saves demolition, and premium tiles can cost as much as microcement.

What are the downsides of microcement?

The main ones are the upfront premium, heavy reliance on the installer’s skill and the lack of pattern options. It also cracks if the substrate moves, and it needs resealing periodically. Most reported failures come from skipped steps or poor tanking, not the material.

How long does microcement last in a shower?

With professional installation and maintenance, UK systems are expected to last 10 to 20 years. In high-traffic wet zones the sealer may need a professional refresh around every 3 to 5 years.

Does mould grow on microcement?

It can, but less readily than on grout, since there are no joints for residue to collect in. Poor ventilation is the bigger cause. Clean with neutral, non-abrasive products and keep the bathroom well ventilated.

Is microcement better than polished concrete?

They are different things. Polished concrete is the slab itself ground and sealed, so it needs to be planned into the structure. Microcement is a thin overlay that can go over existing surfaces. For a new extension, polished concrete needs a decision before the slab is poured.

Sources