How to decide whether an old mixer tap is worth repairing

When is it worth repairing a tap?

Tap repair is generally a sensible choice when the problem is clearly defined, the body and all major components are in good condition, and the necessary spare parts are still available for the tap model.

• The tap is less than 8-10 years old and generally in good physical condition.
• The problem is with one specific part — cartridge, seal, aerator, shower hose, etc. — not several different faults simultaneously.
• There are no visible cracks, rust, or corrosion marks on the body.
• The tap model is from a reputable manufacturer, and spare parts are commercially available.
• The repair cost is clearly less than half the price of a similar new tap.

When is it more sensible to replace the tap immediately?

Replacement becomes a more sensible option when problems start to accumulate, the body itself shows signs of physical wear, or when the cost of repair no longer yields a proportionate result.

• The tap is over 12-15 years old — at this age, internal parts are usually generally worn, not just one specific component.
• The body shows cracks, peeling chrome plating, rust, or heavy limescale build-up that can no longer be removed by cleaning.
• The same fault (e.g., dripping) has already been repaired several times but keeps recurring.
• The tap model is so old that the manufacturer no longer produces suitable spare parts for it.
• The total cost of repair (labour + spare parts) approaches 60-70% of the price of a similar new tap.
• You also want to change the tap's style, height, or functionality (e.g., switching to a thermostatic mixer).

How to calculate the real cost difference between repair and replacement?

The most common mistake is to compare only the price of the next repair with the price of a new tap, forgetting past costs and probable future expenses.

• Add up all repair costs (spare parts + labour) incurred for this tap in the last 2-3 years.
• Add the estimated cost of the next, currently needed repair.
• Compare the total sum with the overall price of a new mid-range tap and its installation.
• If the sum of repair costs exceeds 50-60% of the price of a new tap, replacement is usually the more economically sensible choice.
• Also consider that a new tap typically consumes less water thanks to a more efficient aerator, leading to additional long-term savings.

How tap type affects the repair vs. replacement decision

Different types of taps wear differently, and this influences how long a repair is worthwhile.

• Single-lever (monobloc) taps use a ceramic cartridge, which is usually easy and inexpensive to replace — often worth repairing even if the tap is already 8-10 years old.
• Two-handle (classic) taps mostly use standard rubber or washer seals, which are also inexpensive to replace, but with older models, the entire internal mechanism may already be worn.
• Thermostatic mixer taps are technically more complex and their spare parts are more expensive — if the thermostatic head or mixing cartridge is faulty, you must compare the cost before deciding, as the difference in favour of a new tap might be smaller than expected.
• Kitchen taps with pull-out spray nozzles often require the replacement of hoses and the spray head itself, which is generally an inexpensive and simple repair, regardless of the tap's overall age.

Body material and condition as a decisive factor

While the internal parts of a tap can always be replaced, the body itself can rarely be repaired, and only to a limited extent — if the body itself is damaged, the point of repair is largely lost.

• Brass-bodied taps typically resist corrosion well, and chrome plating wear can be partially restored, but deep cracks or micro-cracks mean the risk of leakage persists even after repair.
• Cheaper zinc alloy-bodied taps (common in budget segment products) corrode faster from the inside, even if they look fine externally — in such cases, immediate replacement is usually more sensible than repeated repairs.
• If you notice rust streaks, bubbling chrome plating, or cracks on welds on the tap body, these are signs that repair is no longer a long-term solution.

Tap age as a general indicator

Although each tap should be assessed individually, age provides a useful general overview of which way the scales typically tip.

• 0-5 years — almost always worth repairing; warranty may even be valid.
• 5-10 years — usually worth repairing, especially if it's an isolated problem.
• 10-15 years — decision depends on the specific fault and the body's condition, requires closer assessment.
• Over 15 years — replacement is usually more sensible, as finding spare parts becomes difficult and the body is typically already worn.

How ToruFix helps you make the right decision

During an on-site inspection, we assess the actual condition of your tap — the state of the cartridge, seals, body, and hoses — and provide an honest appraisal of whether repair is sensible for that specific tap. If you opt for repair, we'll perform it quickly with quality spare parts; if replacement is the better option, we'll help you choose a suitable new tap and install it during the same visit.

Operating in Tallinn and Harjumaa, we typically arrive quickly and provide a price quote before work begins, ensuring a transparent and clear decision.

Common misconceptions about repair and replacement

One of the most common misconceptions is that repair is always cheaper than replacement — this is only true for the first or second fault. For repeated repairs, this no longer holds.

Another common misconception is that if a tap looks good externally, its internal mechanism is also fine. In reality, corrosion and wear can occur invisibly inside the body, especially with cheaper material taps.

It's also often believed that all taps can simply be endlessly repaired “part by part” — in fact, spare parts for many older or lesser-known models often disappear from the market just a few years after production ends.

Spare part availability – an often underestimated factor

Before deciding to repair a tap, it's worth checking if suitable spare parts are still being manufactured. Many customers assume that a cartridge or seal can always be ordered, but in reality, manufacturers have often ceased producing spare parts for older models just a few years after the tap was discontinued.

If a plumber has to search for a spare part from several different importers or order it from abroad, the repair waiting time increases, as does the cost. Therefore, this factor should be considered before starting the repair.

• For well-known European manufacturers (e.g., Grohe, Hansgrohe, Oras), spare parts are generally available for 10-15 years after the model's release.
• For cheaper or lesser-known manufacturer models, universal spare parts might fit, but an exact fit cannot always be guaranteed.
• If the tap model has already been discontinued and there's no spare parts list on the manufacturer's website, it's generally a sign that repairs will become increasingly difficult over time.
• Before ordering, always ask the plumber whether the specific spare part is in stock or needs to be ordered — this directly affects the repair schedule.

Tap quality class and original price influence the decision

Two taps of the same age are not automatically in equal condition — the quality class to which the tap originally belonged significantly affects how long a repair remains worthwhile.

Example calculation: Three-year repair costs vs. a new tap

A concrete numerical example helps to understand the decision better than general recommendations. The following is a simplified but typical example for a bathroom monobloc tap.

• Year 1: Cartridge replacement — spare part €15 + labour €35 = €50.
• Year 2: Aerator and hose replacement — spare parts €10 + labour €25 = €35.
• Year 3: Recurring drip, new cartridge and seals — spare parts €20 + labour €40 = €60.
• Total repair cost over three years: €145, plus a new call-out charge for each instance.
• The price of a similar mid-range tap with installation usually ranges from €150-€220, which also includes a multi-year warranty.
• In such a situation, after the third fault, it's sensible to consider replacement, not a fourth repair.

Ceramic cartridge replacement – when it's worthwhile and when it's not

The ceramic cartridge is the most common cause of failure in single-lever taps and also one of the easiest parts to replace. Nevertheless, replacing the cartridge isn't always worth it at any cost.

• If the lever movement is stiff, wobbly, or water only flows in one position, it's usually the cartridge, and replacement will fully resolve the problem.
• Cartridge replacement is worthwhile if the body itself is not damaged and a suitable cartridge for the tap is still available — usually, the work plus spare part costs €30-€60.
• If the same tap's cartridge has been replaced repeatedly (e.g., due to limescale build-up from water quality), it's worth considering whether the problem lies elsewhere, such as excessively high water pressure or poor water quality.
• Using universal cartridges instead of original spare parts might be cheaper, but they don't always fit perfectly and can cause new leaks — the long-term solution is still the original spare part.

Condition of screw fittings and angle valves

While focusing on the tap's condition, its connections are often overlooked — the screw fitting to the basin or wall, and the angle valves that regulate water flow. If these are damaged, replacing or repairing the tap alone may not solve the problem.

• If the tap's fixing screw is rusted or stripped, it will need to be replaced during repair anyway — this adds a small extra cost but generally doesn't affect the repair vs. replacement decision.
• Old, stiff angle valves can cause dripping or uneven water pressure even after installing a perfectly functional tap — they should always be checked during the same visit.
• If the angle valves have leaked or no longer close properly, it's sensible to replace them along with the tap, as a separate call-out just for the valves would be more expensive later.
• In older apartments where the pipework is already worn out, it's worth checking the condition of the pipe itself before installing a new tap to avoid a situation where a new tap is installed on an old and leaking fitting.

Summary Decision Checklist

Before making a final decision, go through this short checklist to quickly find your direction.

• Is the tap less than 10 years old? If yes, lean towards repair.
• Is the problem isolated and clearly defined? If yes, lean towards repair.
• Are there visible cracks, rust, or chrome plating damage on the body? If yes, lean towards replacement.
• Has the same fault recurred before? If yes, lean towards replacement.
• Does the sum of repair costs exceed half the price of a new tap? If yes, lean towards replacement.
• Are spare parts still readily available? If no, lean towards replacement.
• Are the angle valves and fixing screws in good condition? If no, factor this as an additional cost into your decision.
• Does the tap belong to a higher price range and product line with a quality material body? If yes, lean more towards repair.