Replace shower seals: all guides

5 specialist guides for every seal failure

Which seal on your shower or bathroom is broken? Here are 5 detailed DIY guides — one per typical wear point, each with tool list, steps and universal-profile recommendation.

1. Glass shower door leaks

Symptom: Water leaks sideways at the door, a gap appears when closing.

Culprits: Magnetic seal, lip seal or stop profile — depends on build.

→ Replace glass-door seal: magnet, lip, stop

2. Bath with folding screen

Symptom: When showering over the tub, water leaks at the glass edge, or the magnetic lip won't close.

Culprits: Tub bottom seal (most common), magnetic lip or folding-joint lip.

→ Replace bath-screen seal in 30 min

3. Shower mixer drips or handle is wet

Symptom: Water drips from the hose connection, handle is wet after every use, or the showerhead sprays sideways.

Culprits: O-rings (10-pack at the hardware store €5–10), stopgland seal, head filter gasket.

→ Configurator — find the right seal

4. Floor drain smells

Symptom: Smell from the floor drain, water drains slowly, or gurgling on outflow.

Culprits: Trap cup (90% of cases), rose seal or wall-coupling sleeve.

→ Configurator — find drain parts

5. General: which seal fits my shower?

If unsure: glass thickness, door type and position are the three answers our configurator needs:

→ Configurator: 90 sec to the right seal

Or read the general step-by-step replacement guide.

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Basic toolkit (covers all 4 guides)

| Tool | Price | For | |---|---|---| | Utility knife | €3–5 | Cut profiles | | Hairdryer | (you have one) | Soften glue | | 45° mitre shears | €12–18 | Clean angle cuts | | Isopropyl alcohol | €4–8 | Clean glass edges | | Plastic scraper | €2–3 | Remove silicone without scratching | | Sanitary silicone | €5–8 | Tub and wall joints | | Spanner set | €10–20 | Mixer dismantle | | O-ring kit (10pc) | €5–10 | Mixer spares |

Total toolkit cost: under €50 — most you have already. First repair pays back the plumber callout (€60–120/h).

When to call a pro?

• Main pipe blocked: Sewage backflow — don't DIY.
• Flush-floor shower needs renovation: When the drain seat in the screed leaks, you need a tiler.
• Fully corroded mixer: Better to replace the mixer (from €60) than fight with internals.
• Lift-pivot doors (Schulte ExklusivPlus, Kermi PEGA, Hüppe Studio): Universal profiles can hit their limits.

For everything else: DIY is cheaper, faster and more fun.