London buses lack working air-conditioning as window rows divide riders
Transport for London confirms most of its 6,000 air-cooling systems fail to cool effectively
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Passengers on London buses have clashed over whether windows should stay open or closed during recent heatwaves. Transport for London confirmed that while more than 6,000 buses have air-cooling systems, most do not provide effective air-conditioning. The dispute has led to reports of hostile reactions, including one rider claiming to receive "death stares" after closing a window.
Why the cooling systems fall short
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Transport for London told *This Is Local London* that the air-cooling systems on most buses rely on a basic ventilation setup rather than full air-conditioning. Some systems only function when windows are closed, but even then, riders say the cooling effect is minimal. One Reddit user described the air-conditioning as "as effective as a yawning ant," preferring open windows for a breeze.
Another passenger argued that open windows reduce the spread of stale air in crowded buses. "I would rather not have all the windows closed while being packed like sardines with strangers," they wrote on the r/London subreddit. A third user said they closed a window because their bus’s system required it, only to face disapproval from other riders.
No official policy on window use
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Transport for London has not issued formal guidance on whether windows should be open or closed. The decision is left to drivers and passengers, with no enforcement mechanism. The lack of clear rules has contributed to the tensions, as riders balance personal comfort against the preferences of others.
The debate comes as London faces record summer temperatures, with some days exceeding 30°C. Public transport, including buses, has become a focal point for complaints about heat, particularly on routes without air-conditioning. Underground services, which are being upgraded, have also faced criticism for poor ventilation.
Strike action adds to disruption
Bus services in north, east and central London will face further disruption in August 2026 due to planned strike action. Transport for London announced that routes will be affected on 14-15, 18-21 and 25-28 August. The strikes follow ongoing disputes over pay and working conditions, with no resolution yet agreed.
Passengers are advised to check Transport for London’s website for real-time updates on affected routes. Alternative transport options, including the Tube and Overground services, may also experience delays due to the industrial action.
What happens next
Transport for London has not announced plans to upgrade bus air-cooling systems or introduce formal window policies. Riders are likely to continue managing the issue informally, with tensions expected to rise during future heatwaves. The upcoming strikes may further strain services, increasing crowding and discomfort on buses.
Questions this report answers
+Why don’t London buses have proper air-conditioning?
Transport for London says most of its 6,000 air-cooling systems are basic ventilation units, not full air-conditioning. Many riders report the systems are ineffective, even when windows are closed. No upgrades have been announced to address the issue.
+When are the next bus strikes in London?
Strikes will disrupt bus routes in north, east and central London on 14-15, 18-21 and 25-28 August 2026. Transport for London has warned passengers to expect delays and check for updates before travelling.
+Is there a rule about opening or closing bus windows?
No. Transport for London has not issued formal guidance on window use. The decision is left to drivers and passengers, leading to disputes during heatwaves. Some systems require windows to be closed to function, but riders often prefer open windows for airflow.
WE FILE
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The London Travel Desk assembled this report from the outlets listed below. Language-model drafting is reviewed under human editorial supervision, with scoring notes and corrections kept visible.
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