Cleaning Ventilation, Ducts & Air Systems (After Pests)

Quick answer — how we make air paths hygienic again

We isolate zones, protect plant equipment, remove residues from grilles and housings, damp-lift internal contamination where accessible, apply suitable disinfection to affected surfaces, and verify that airflow is preserved. Where bird nesting caused ingress, we clean, proof entries and advise on maintenance that keeps intakes clear.

Why vents and ducts need specific care

Do not block airflow

Ventilation exists for a reason. We fit guards and screens sized to maintain free area and never tape or foam over vents.

Avoid spreading dust

Opening a grille and brushing aggressively sends contamination down the duct run. We suppress dust, lift residues carefully and capture them instead.

Plant interface

Air handling units and fan housings require careful cleaning around electrics, bearings and controls. We use low-moisture methods and protect sensitive components throughout.

Our process for ventilation cleaning after pests

1) Survey and isolation

We identify affected intakes, exhausts, grilles and duct runs, isolate plant where required, and plan safe access before any cleaning begins.

2) External and terminal cleaning

Residues on louvres, cowls and terminals are damp-lifted and disinfected. Guards are fitted or refitted to prevent future pest ingress.

3) Internal accessible sections

Where access panels exist, we wipe surfaces, vacuum using HEPA capture equipment (not domestic vacuums), and apply appropriate disinfection without leaving wet pools.

4) Ductwork hygiene in food and public spaces

Where deeper internal duct cleaning is required, we coordinate with duct hygiene providers so pest-related contamination is addressed alongside grease or dust management programmes.

5) Odour mitigation

After source removal, targeted odour treatments are applied at terminals or housings to reduce lingering smells. We never use fragrance to mask untreated contamination.

Common scenarios we resolve

• Pigeon nesting at roof intakes transferring dust and odour into offices
• Rodent activity in ceiling voids contaminating bathroom extract grilles
• Pantry pest dust around back-of-house vents in cafés and small production units

Proofing that preserves performance

• Mesh guards correctly sized to maintain airflow
• Sealing of service penetrations around casings
• Seasonal roofline checks to prevent debris choking intakes

Documentation and re-commissioning

We provide a service note detailing work completed, products used, and any recommendations for duct hygiene partners. Plant is re-started only after checks, and grilles are refitted clean and secure.

Why choose A&H

• Vent-aware cleaning that keeps systems functional
• Discreet, safe methods suitable for occupied buildings
• Practical proofing and maintenance advice
• Competitive pricing and flexible scheduling

Book ventilation and duct cleaning after pest issues on 020 8295 3402.