Wet and Dry Risers

dry riser is a normally empty pipe, that can be externally connected to a pressurized water source by firefighters. It is a vertical pipe intended to distribute water to multiple levels of a building or structure as a component of the firesuppression systems.

Most buildings have a "wet riser" or "wet standpipe" system where the pipes are kept full of water for manual or automatic fire fighting operations. Dry risers are used when the water pressure of a building wouldn't be enough for fire suppression and in unheated buildings where the pipes could freeze. Dry risers have to allow access to a fire engine within 18 m of the dry riser inlet box. Dry risers in occupied buildings have to be within a fire resistant shaft, usually one of a building's fire escape staircase enclosures.


We at Preston Fire and Security can maintain your wet and dry risers, get in touch for a site survey.

We are located at:

Preston Fire and Security

Suite 15, Rear of Vermont House

Bradley Lane

Standish, Wigan


Contact us today!

If you have any queries or wish to make an appointment, please contact us:


+44 01257 369176+44 01257 369176



Or use our contact form.