Clear Urinal Blockages. Prevent Urinal Blockages.

URIC XTREME® and URIC® FREEFLO. Unique and safe chemical treatments - specifically for treating urinal blockages.

Clear & Prevent Blockages - in Sinks, Basins, Toilets, Showers, Gullies & Drains.

ORPHEUS. The safe alternative to sulphuric or hydrochloric acid based drain cleaners - but just as effective.

Enzyme Dosing Systems. Controls Grease & Fat.

ENZYMATIC Xtra - Advanced Enzyme Drain Cleaner. For controlling kitchen grease and fat waste - that can build up within the drainage system.

Legionella Control Chemicals. 2-Step Treatment.

SCALE DOWN - Limescale Remover. LEGIONNAIRE - Sanitising Treatment.

Guaranteed Urinal Unblocker

URIC XTREME® - Urinal Unblocker is guaranteed to clear a urinal blockage. Quick, easy and safe to use - simply pour into the urinal. If you are not completely satisfied with the performance of URIC XTREME® - we will simply and quickly refund your money.

Safe Alkaline Drain Cleaner

ORPHEUS - NON ACID is a high performance alkaline drain cleaner. It is the safe alternative to acid based drain cleaners - but just as effective. It requires the minimum of safety measures, and will not damage surfaces or pipework. Use ORPHEUS to treat blockages leading from sinks, basins, toilets, showers, gullies and drains.

Enzyme Dosing Systems

CHEMASSIST® can supply and maintain enzyme dosing systems - for controlling grease and fat buildup throughout the entire drainage system. An initial onsite survey and assessment is available - free of charge. For more information, and to request a free onsite survey, please click the link above.


Client testimonials from a selection of our satisfied customers:

We have been using uric xtreme for about two years now in both public and employee urinals and blockages are a thing of the past. We have recently started using the alkaline drain unblocker which has proved a remarkable success. I would recommend these products to anyone on industrial or commercial premises as their use has saved a lot in man hours worked.

Nigel Chant, Network Rail

First and foremost the service from Chemassist was great. Purchasing online was really easy. COSHH data sheet arrived without request. Product arrived in a very timely manner. The product is just what we’re looking for and worked a treat. It’s so exciting to find something at long last that will unblock a urinal quickly and efficiently. I say exciting because we’ve tried all sorts in the last few years to no avail.

Phil, Bletchley Park

URIC XTREME is a fantastic product. We`re a small charity so every penny counts. Using this has saved us paying for outfalls to be replaced.

Alan, Apsley Paper Trail Frogmore

Hey presto! We had four unblocked urinals in no time at all, after being completely blocked for a number of weeks! No nasty chemical smells or harmful fumes either. To say we are satisfied with your Uric Xtreme would be an understatement, we are over the moon!

Christine Hague, Toutes Directions Limited

We have the freshest & most trouble free urinals in the area! It is amazing how a regular routine with the right chemicals can eradicate any urinal smell. Great advice on the web site. Excellent customer service. Speedy delivery. Definitely recommend both the product & Company.

FIONA BECK, The County Hotel


Chemassist® research, develop and supply specialist drainage chemicals, for the treatment and prevention of blockages to the entire drainage system - blocked urinals and urinal pipework - the control of grease and fat - pipework blockages leading from sinks, basins, showers, toilets, gullies and drains.


All of our products have been designed to be extremely high performing - yet are safe to use. They require the minimum of safety measures, and are safe on all metals, plastics and ceramic surfaces.


We have a reputation for exemplary service and product quality - this has allowed us to establish a client base that includes a large number of prestigious institutions.

Need Assistance?

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