For all your indoor growing equipment and hydroponics needs, contact Critical Mass Systems in Sheffield. We're open 7 days a week for your convenience and out of hours appointments are possible with prior arrangement.

Our shop is situated on the outskirts of Sheffield city centre with good links to the M1 motorway. The store is loaded with indoor growing goodies, so pop by to check out what's in stock.

And, feel free to contact us via email or telephone for growing advice and sales enquiries. Or, just drop by our Sheffield store and have a free face-to-face chat with our horticulture experts.


Finds us at:

Critical Mass Systems

Unit 4, Holbrook Enterprise Park

Enterprise Way


S20 3GL

0114 3221440