What a bathroom renovation actually costs in Turku in 2026 — where the money goes

A full renovation of a standard 4–6 m² flat bathroom in Turku lands, indicatively, between 8 000 € and 15 000 €. A detached-house bathroom on Hirvensalo or Kakskerta runs 8 000–20 000 €, and high-specification projects pass 20 000 € — completed jobs of 21 000–25 000 € exist. A lighter scope sits nearer 2 500–8 000 €, and swapping fittings or renewing silicone seams is 200–800 €. Per square metre, roughly 600–1 500 €/m². That spread is not vagueness: it is the difference between two jobs that share a name — renewing surfaces, and rebuilding a märkätila (wet room) from the concrete outwards.

Across a full renovation, materials are typically 30–60 % of the total and labour takes the rest. Tile choice moves the smaller half of the budget; hours on site move the larger half — and almost every decision about layout, drainage and demolition is really a decision about hours.

Strip-out, waste and what is found underneath

Demolition and waste handling on a small flat bathroom is usually a four-figure line, commonly 1 000–2 000 € once skip hire, carrying and disposal fees are counted. In a 1970s block in Varissuo or Runosmäki with no lift on the right stairwell, the carrying alone is real money. This is also the stage that rewrites budgets: bathrooms built before roughly 1999 often have no certified membrane at all, just tile on screed, and damage underneath only appears once the tiles are off. Comparing what firms include here is easier in Finnish: search Kylpyhuoneremontti Turku and the results are local companies' own service pages, setting out scope, warranty and what happens if damage is found, where the English-language results are mostly national portals.

If drying is needed, add one to three weeks of dehumidifiers and measurement before building work restarts, and a job quoted at two to three weeks becomes four to six. The materials bill barely moves; the labour and equipment bill does.

Plumbing, electrical and ventilation

Renewing pipework and the electrical installation is typically 1 500–3 500 € together, and the variables are structural, not cosmetic. Leaving the lattiakaivo (floor drain) where it is keeps the job predictable. Moving it means opening the slab, reworking falls and, in a taloyhtiö (the housing company that owns the building), touching shared structure — well over a thousand euros, and closer scrutiny. An old cast-iron soil stack is the other classic: connecting new pipework to a corroded one is a poor idea, and if a linjasaneeraus (the building-wide plumbing renovation) is due within a few years, spending 12 000 € on a room that will be reopened is worse.

Mechanical ventilation is the line most often missing from a cheap quote. A wet room that dries slowly fails early whatever the tiling looks like, and altering ventilation routes or plumbing runs can require a permit from the local rakennusvalvonta (the building control authority); cosmetic work usually does not.

Waterproofing: the smallest line, the largest risk

The vedeneristys (the waterproofing membrane) is often only 500–1 500 € of a five-figure project, yet it decides whether the room lasts twenty years or two. It must be applied by someone holding the Finnish personal certification for wet-room waterproofing, and photographed and documented before tiling — once tiles are on, nobody can see it again. Floor gradients must fall cleanly to the drain; a flat or reversed fall is a defect that stays invisible for years and then is not.

Tiles, coatings and fittings

Tiling is usually the biggest single labour line, and format drives it. Standard 20×20 or 30×60 tiles on a simple layout are quick. Large-format porcelain, mosaic, herringbone or a wall with three niches multiplies cutting, levelling and setting-out time — same room, same tiler, thousands apart. A coated finish is cheaper on labour but has a different lifespan. Fittings are the line you control: a basic sanitaryware and tap package might be 800 €, a specified one 3 000 € or more, with no effect on how the room performs.

Why two quotes for the same 5 m² room differ by thousands

When two prices for one room are 4 000 € apart, the gap is almost never the hourly rate. It is scope:

• Whether demolition, skip hire and waste fees are included or billed separately

• Whether the drain stays put or moves, and whether the slab is opened

• Whether an old cast-iron soil stack is replaced or merely connected to

• Whether the ceiling, ventilation valves and lighting are inside the price

• Tile size, format and layout — and who pays for breakage and waste percentage

• Whether drying, if damage is found, is priced as a variation or absorbed

• Whether the supervisor the board may require is in the quote or on your account

Fixed price versus "alkaen"

A fixed price should name the scope, the demolition and disposal, the waterproofing system, the tile allowance per square metre, the fittings by model, the ventilation work, the schedule, payment stages and warranty terms. Anything outside it is a variation, and variations need a written procedure agreed before work starts, not an argument afterwards. "Alkaen" — from — pricing is not dishonest, but it describes the cheapest imaginable version of the job: no damage, no drain move, no ceiling, entry-level tile. When you research kylpyhuoneremontin hinta in Finnish, read the assumptions under the headline figure rather than the figure itself; that is where the real comparison lives.

Two administrative items also belong in the budget. In a taloyhtiö you must file a muutostyöilmoitus (the alteration notice a shareholder files with the housing company) with the isännöitsijä (the property manager) or board before work begins, and the board may require a supervisor at your cost. The kotitalousvähennys (the household tax credit) currently returns 35 % of the labour portion, up to 1 600 € per person per year with a 150 € own-liability threshold, so a couple in one household can reach roughly 3 200 €. Only labour qualifies, never materials, so the invoice must itemise it. A rise has been proposed but was not confirmed as of spring 2026 — check the terms in force on vero.fi.

Sanity-checking your own quote

Do three things with your quote. Divide the total by the floor area: if a full rebuild comes out under about 600 €/m², something on the list above has been left out. Split it into labour and materials — if labour is under about 40 %, the price is assuming a scope you have not agreed. Then read it against those seven items and ask in writing about every one that is missing. A contractor who answers clearly, and supplies the waterproofing certificate, the membrane photographs and the warranty in writing, is quoting a different job from the one that looked cheaper. That difference is the point.