One of the most common questions we get on site is: “how much longer will this hold out?” The answer depends on the element, the quality of the original material, the use and the maintenance. But there are real ranges worth knowing.
This guide is not theory. It’s what we see in bathrooms in Valencian flats built between the 1960s and 1990s — the most common housing stock in our work area.
The lifespan table
| Element | Estimated lifespan | Sign it’s time to check |
|---|---|---|
| Silicone (bath/shower/basin) | 3–5 years | Black mould stains, separation from surface |
| Basic taps (chrome brass) | 10–15 years | Persistent drip, irreversible limescale, corroded body |
| Quality taps (Grohe, Hansgrohe) | 20–25 years | Cartridge drip, hard-to-find spare parts |
| Standard ceramic tiles | 30–50+ years | Hollow sound when tapped, grout cracks, visible separation |
| Shower screen (glass + aluminium frames) | 10–15 years | Corroded frames, permanently opaque glass, deteriorated bottom seal |
| Cistern mechanism | 15–20 years | Water keeps running, needs double flush, damaged float |
| Toilet bowl (ceramic) | 30–50+ years | Cracks, hairlines at base, yellowing that won’t shift |
| Acrylic bath | 15–20 years | Colour loss, deep scratches holding dirt, flex under weight |
| Cast iron bath | 40–60+ years | Enamel flaking on more than 30% of surface |
| Resin shower tray | 10–15 years | Yellowing, finish cracks, flex when stepped on |
| Ceramic/porcelain shower tray | 25–35+ years | Cracks at base or edges |
| Melamine vanity unit | 8–12 years | Swelling at base from damp, laminate separating |
| Marine ply vanity unit | 15–20 years | Same as melamine but holds longer before giving way |
| Lead pipes | Overdue — replace NOW | Cloudy water, irregular pressure, any flat built before 1980 |
| Copper pipes | 25–40 years | Green verdigris at joints, drips at solder points, visible pitting |
| PEX/multilayer pipes | 50+ years | Practically failure-free if well installed |
| Basic mirror | 10–20 years | Black marks at edges (delamination), internal “foxing” |
| Basic extractor | 8–12 years | Noisy, poor extraction, permanently mouldy grille |
Silicone: the most neglected element
Silicone deteriorates much sooner than most people think. The majority of homes have silicone in a deplorable state and don’t know it because they’ve “got used to” the look.
Bad silicone isn’t just ugly — it’s an active source of mould and fungus that spreads through the joint into the wall. When we arrive at renovations and remove old silicone, what we find behind it sometimes requires fungicide treatment before resealing.
When to replace it: every 3–5 years with normal use. If there are deep black stains that won’t lift with bleach, it’s mould and needs to be addressed.
Cost: quality antifungal silicone (Soudal, Würth, Fischer) costs €6–10 per tube. Professional labour to remove the old, clean and apply new: €60–90. One of the cheapest and most important maintenance jobs in the bathroom.
Taps: when to repair and when to replace
Mid-range chrome brass taps last well 10–15 years with basic maintenance (cartridge change when they drip). The cartridge is the first thing to wear — it costs €8–20 and takes 30 minutes to swap.
The problem comes when the brass body starts showing corrosion, when the chrome is peeling in flakes, or when limescale build-up has made the finish unrecoverable. At that point, repair makes no sense.
Clear sign to replace: if you’ve changed the cartridge twice and it’s still dripping or the problem comes back within weeks, the tap body is damaged.
Tiles: when they’re still fine and when they signal a bigger problem
Standard ceramic tiles are one of the most durable elements in a bathroom. In normal conditions they last decades without problems.
The problem isn’t the tiles — it’s what’s behind them.
The warning sign isn’t the old-fashioned colour or design. It’s the hollow sound when you knock softly with your knuckles. A hollow-sounding tile means the adhesive mortar has separated from the wall — usually from accumulated damp, structural movement or poor original application.
A loose tile isn’t just aesthetic: it’s an entry point for water into the wall, causing progressive damp, mould and structural damage.
Cisterns and mechanisms: the silent drip costing you money
The cistern can last decades, but the internal mechanism (float, fill valve, flush mechanism) typically needs replacing after 15–20 years.
The most common sign: water keeps running into the bowl after flushing. That silent drip can waste 50–200 litres per day.
The cheapest fix: replacing the complete cistern mechanism costs €20–40 in parts (Roca, Geberit) and €60–90 in plumber’s labour. Total: €80–130. No need to replace the whole toilet.
Pipes: what you can’t see but matters most
Lead: any lead pipe must be replaced. No repair possible, no justification to keep them. They’re a real health risk. If you live in a pre-1975 flat with no plumbing renovation, there’s a real possibility of lead pipes. Have a plumber check.
Copper: holds well, but solder joints deteriorate over time, especially in very hard water areas. Lifespan: 25–40 years depending on water quality.
PEX or multilayer: the modern standard since the 2000s. Practically problem-free except for poor original installation.
Vanity units: the damp trap
Melamine units are functional, cheap and look fine initially. The problem is they don’t resist accumulated damp well. Signs it needs replacing: swelling at the unit base, laminate lifting at edges, damp smell when opening drawers.
More durable alternatives: PVC or technical resin, lacquered in high-humidity finish. The price difference versus standard melamine is 20–40%, but the lifespan is double.
When a full renovation is inevitable
The sum of elements needing replacement typically exceeds the cost of a full renovation when:
- Concealed plumbing is over 30 years old and never reviewed
- More than 20% of tile surface has adhesion problems
- Cistern, unit and taps are in permanent deterioration
- No extractor or the existing one doesn’t work
- Shower tray or bath has structural damage
At that point, patching element by element ends up costing more and giving worse results than a properly planned full renovation.
Frequently asked questions
Can I replace just the cistern mechanism without replacing the toilet? Yes, in most cases. Universal mechanisms from Roca or Geberit adapt to nearly all models.
How long does silicone last in a holiday home used only a few weeks a year? Temperature and humidity cycles deteriorate silicone regardless of use. In a secondary residence used 4–6 weeks a year, it may last 7–10 years. But inspect it visually every time you use the property.
Are mirrors with “foxing” at the edges fixable? No. Mirror delamination is irreversible once it starts. The black edge marks are the silver layer oxidising. The only solution is replacement.
If your bathroom has several elements in the high lifespan ranges or showing wear signs, request a free assessment via our calculator.
