Pigeon poo.

Firms specialising in “bird guano / pigeon poo / bird‑dropping removal” (often also called biohazard cleaning) are the appropriate trade. These contractors are equipped with correct PPE, respirators and disposal procedures — since dried pigeon droppings can harbour pathogens and become hazardous when disturbed. Many of them also offer follow-up “proofing” or deterrent work (netting, spikes, etc.) if pigeons are recurring.

Any company that had a environmental services

Best tradesmen to contact: 1. Commercial Cleaning Company (BEST choice) • Look for companies specialising in: • Industrial cleaning • Biohazard / hazardous waste cleaning • They have: • PPE (protective gear) • Disinfection chemicals • Waste disposal certification 2. Pest Control Specialists • Especially companies dealing with birds • They will: • Clean the mess • Install deterrents (netting, spikes) to stop pigeons returning 3. Environmental / Biohazard Cleaning Services • Used for more serious contamination • Ideal if the droppings are heavy or long-term buildup

A specialist contractor that deals with biohazards