News

# New windows for first floor

Work to replace the windows in the 1970s part of our building continues and from
Monday 16 June will move to the first floor.

Published 12 June 2025

Our existing aluminium double-glazed windows are now over 40 years old and it is
time to replace them. This will ensure we continue to protect and conserve our
collections. The new windows will not alter how our building looks.

From June through to the end of October, you will see our contractors as they
work around the edge of the first floor behind hoardings replacing the windows.
Inevitably, there will be some noise this time and visitors in our reading room
and other areas of the first floor will experience some noise disruption, most
likely in the mornings. Some seating and working areas have been removed or
relocated.

We apologise in advance for the disruption and thank you for your support and
understanding during these major improvement works to our site.

Visitors to our exhibition, [MI5: Official
Secrets](https://www.nationalarchives.gov.uk/whats-on/exhibitions/mi5-official-secrets/),
will not be affected by this work.

      

![A concrete building with lines of narrow windows. An open courtyard is in front with benches.](https://www.nationalarchives.gov.uk/media/images/The_ShXfLqx.max-1200x1200.format-jpeg.jpegquality-60.bgcolor-fff.jpg)

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