Most council regulations don't outright require extractor fans. However, rentals must have adequate ventilation. Also, persistent damp issues like mould from lack of a fan may violate health codes. Part F (F1 & F2) of the building regulations dictate a minimum ventilation requirement for new build properties for both kitchens and kitchens, which our extractor fan systems can achieve.
Nobody wakes up one day and says, "I need extra ventilation", without good reason. Ventilation systems are usually ordered to solve a problem, or to prevent a problem before it occurs. We can fix condensation throughout a property, poor ventilation and removing bad smells in kitchens and w/cs - we can't fix water ingress, leaks or rising damp with ventilation alone.
