Urinal blockages: clear them, then prevent them.
URIC XTREME® and URIC® FREEFLO: A unique chemical solution to blocked urinals. Use URIC XTREME® to clear the blockage, then use URIC® FREEFLO to prevent the blockage returning.

Our two best selling products - just pour into the urinal.
URIC XTREME® - CLEARS BLOCKAGES
Specialist unblocker that dissolves hard uric scale and gets blocked or slow urinals working again quickly.
URIC® FREEFLO - PREVENTS BLOCKAGES
Monthly maintenance dose that stops scale build-up, cuts odours and keeps pipework flowing. Available on subscription.
Enzyme Dosing Systems for Commercial Kitchens
In commercial drainage systems, blockages and odours often develop gradually due to the build-up of FOG (Fat, Oil, Grease). Enzyme drain maintenance products are designed to address this problem over time, helping keep drains clean, free-flowing and hygienic.

Tailored solutions to combat fats, oils, grease that can build-up within the drainage system.
Our specialist enzyme-based products support ongoing drain maintenance, particularly in high-use environments such as commercial kitchens.
Free onsite survey available.
We can visit your site to carry out a full inspection, providing tailored recommendations to prevent blockages and drainage issues caused by fat, oil, grease, and other organic waste.
WHY CHOOSE CHEMASSIST®
High performance, specialised drainage chemicals.
- High-performance, safe, easy-to-use products
- Advising and supplying customers since 2000
- Full COSHH support and ongoing guidance
- Next day delivery throughout mainland GB
Our reputation for exemplary service and product quality has helped us build a client base spread across a wide range of commerce and industries, including many prestigious institutions.
See a selection of our client base →
THE URIC XTREME® GUARANTEE
Your urinal unblocked, or your money back.
- Covers the full 2-year shelf-life
- Transfers if you sell the product on

Whatever quantity you buy, if URIC XTREME® does not clear your urinal when used as directed, we will replace the product or refund your money.
URIC® FREEFLO SUBSCRIPTION
Automatic, hassle-free urinal maintenance.
- Delivered on a schedule - no need to re-order
- Prevents urinal blockages before they occur
- Keeps washrooms fresh and hygienic
- With our subscription service, URIC® FREEFLO is delivered automatically at regular intervals, keeping urinals clear of blockages, odour-free, and fully operational.