Mould Keeps Coming Back in Your Bathroom?

If black mould keeps returning no matter how often you clean it, the cause is behind it — usually damp and poor ventilation. We treat the source, from £190.

✓ Experienced trades✓ Set, transparent prices✓ Instant AI quotes✓ Central London

Does this sound familiar?

  • Black mould returning along grout and silicone
  • Condensation running down walls or windows
  • A persistent musty smell
  • Peeling paint or bubbling near the ceiling
  • Mould worse in winter or after showering

Need it looked at today?

Same-day and emergency slots across Central London — send a photo for a fast set price.

What's usually going on

  • Poor or broken extraction / ventilation
  • Failed silicone and grout letting damp in
  • A concealed leak feeding constant moisture
  • Cold surfaces where condensation forms

Cleaning mould off treats the symptom; it comes back because the moisture behind it is still there. We work out whether it's ventilation, failed sealing or an actual leak, treat the mould properly, and fix the underlying cause — a new extractor fan, fresh seals, or a leak repair.

That's the difference between wiping it away for a fortnight and actually getting rid of it.

Set prices

JobFrom
Mould & damp assessmentfrom £120
Treat mould & renew siliconefrom £190
Install / upgrade extractor fanfrom £180
Investigate hidden leakfrom £160

Set prices shown are typical starting points. You'll always get a fixed quote before any work begins — no hourly surprises.

Why call fixmyproperty.ai

Experienced trades, transparent set prices and a fixed quote before we start — never an open-ended hourly bill. We cover Mayfair, Marylebone, St John's Wood, Bayswater and Paddington, and we understand mansion blocks, porters and managing agents.

Related help

Frequently asked questions

Why does bathroom mould keep coming back?

Because the moisture feeding it is still there — usually poor ventilation, failed seals or a hidden leak. We treat the cause, not just the surface.

Will a new extractor fan solve it?

If poor ventilation is the cause, a properly specified extractor fan makes a big difference. We'll confirm whether that's the issue or whether sealing or a leak is involved.

Is bathroom mould a health issue?

Persistent black mould is worth dealing with properly. Addressing the damp source is the reliable fix.

Get a set price today

Send a photo on WhatsApp for an instant price, or request a quote and we'll come back fast.