About Us

Shining a light on the dark art of building services

The Building Services Portal is here to shine a light on the ‘dark art’ of building services engineering. The guidance and design tools have been produced by UK based Chartered CIBSE Engineers and are designed for anyone from DIY amateurs to fellow building services professionals and architects. 

pump sizing pipe sizing

Try the Building Services Portal Pump and Fan Sizers for free. The most simple way to size pumps and fans quickly and accurately. No need for sizing charts and all complex calculations are performed for you and all presented in a clear and concise format.

We provide free, easy to use tools such as the Building Services Portal pipe and duct sizers. These are easy to use online embeded spreadsheets that allow quick and easy resistance calculations without the need for sizing charts. Just let our tools do the calculations for you.