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Moss Clear Pro - Fast Acting Moss, Algae & Mould Remover

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StarStarStarStarStar 20 Reviews|(5/5)
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Customer Reviews

Found that this treatment was not effectice on moss (on tarmac) that had died and gone brown. Had to be scraped off.

By Roger Higgins From Bristol

Great , did the job I ordered it for. Would order from this company again. Slight hiccup with delivery due to this virus, but expected that Would recommend the Moss Killer liquid.

By Patricia Walmsley From Out Rawcliffe

I have used many Smartseal products for a few years and they are excellent at what they do. The firm is always helpful with technical enquiries and the delivery is sound. The Moss Clear is great on roofs and the natural stone sealer gives a great finish. You can really see the difference and it lasts for a few years. Good stuff

By Donald Johnston

Absolutely fantastic product. I found the product due to looking of the internet.....and I'm pleased I did. I now wont use anything else to remove moss and keep it at bay. It really is a great product, easy to apply and does the job.....couldn't ask for anything better. Highly recommend it if you are looking for moss killer that is effective

By Steve Edwards

Moss Clear- Does what it says on the bottle.

By Peter Sellors

We were plagued by moss on our three year old tarmac drive and had tried pressure washing with poor results. So we thought we'd try chemical treatment and found Moss clear online at Smartseal. Delivery was pretty quick. I have to say that it is now eight bone dry days since we applied it diluted 1 to 4 with water using a stiff yard brush and it definitely looks like it has worked. Many of the previously green patches have now turned brown while others less populated look completely clear. I'm waiting for the expected rain to clean the residue but if we get none soon I'll get the washer on it again. I'm very happy with the result.

By Terry Kirkup From Newcastle upon Tyne

Excellent product and excellent service from all at smartseal.

By Barry Snow

Seems a very good product although time will tell. I did srap off the bulk of the moss before the Moss Clear Pro was applied. Haven't got any photos though as forgot to take some before. It will be interesting to compare as used another product on two other houses in the same cul-de-sac about 4 years ago and both of those roofs still really stand out from the rest so i am hoping this one will be the same.

By Graham BURGE

Very happy with this. My patio was starting to take on a green tint but after one application of this the moss was 99% gone - I just need one more go in the slightly heavier areas.

By Tony Everett From Oxford

followed instructions broke down moss very effectively

By Nigel Peters

Customers happy, I am happy, great products, great results, and fantastic support from a company that cares. Thankyou

By Mark Clark From Allprocleans

Great product. Worked on most of the moss on our drive but as it's a big drive we missed a few spots :D

By Barbara C From Berkshire

Best on the market for clearing green algae and moss from roofs. Tried others, but this product is the one i come back to. More expensive on the face of it, but if you do the sums properly, the � per litre actually works out cheaper than other products on the market that have less active ingredients. Just saying!

By Mark Murray

It's early days but on first application the other day I can see the moss on my driveway changing colour as it dies. Assuming that continues my star rating will go up to a 5.

By Douglas Wilson From Glasgow

only used the product as a preventive so far so still waiting for the results.

By John Flower

Excellent product and works exactly as described. Roughing up the surface was the hardest part! Highly recommended.



By Rosemary Kefford

Very happy with the result

By Robert Slinn

Brilliant product. Does what it says on the can. Had a heavy amount of moss on the slate roof. This started to show signs of dying just 12 hrs after spraying.

By Gary Quest From Devon

Used Moss Clear Pro on my Indian stone driveway to clear the green algae that was forming and making it look unsightly. Used it with a 5 to 1 mix with a pressure sprayer, very easy to apply and within a matter of a day the green algae had gone and the drive looked like new again. Would definitely recommend this product,not cheap but does the job effortlessly.

By David Richardson
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Powerful Moss Killer for Driveways, Patios and Roofs

Concentrated moss killer to kill moss, green algae, fungi, mould, mildew and lichen on external hard surfaces.

MOSS CLEAR PRO is a highly effective microbiological biocide that will break down and kill moss quickly. It will also swiftly erase and prevent regrowth of mould, algae and mildew which are potential health hazards.


  • Apply to dry surface by watering can or sprayer in temps between 8-20 degrees
  • Do not spray if rain is expected within 24hrs of application
  • Application ratios 1:10 or 1:5 for areas of heavy contamination
  • As a preventative, use at approx 1:20 ratio applying once or twice yearly
  • Coverage of 100m can be expected from 5 litres, when diluted 1:5

Moss Clear Pro works as a moss killer and moss remover on most external surfaces such as driveways, patios and roofs. Regarded by professionals as the best moss killer for tarmac and asphalt driveways. It is a stronger formulation that Moss Clear which is frequently used by homeowners for DIY purposes.

It is a a very effective roof moss remover and used extensively for roof cleaning throughout the UK and Ireland. Can also be used as a moss inhibitor to prevent moss growth on roofs, driveways and patios.



Shake container well before opening. Add Moss Clear Pro to water in container to avoid excessive foaming and mix well before application. If applying to heavy moss, brush the growth before treatment. For best results it is vital to ensure thorough saturation as some mosses are very compact and it can be difficult to penetrate the stem structure.

A second application is recommended to remove highly resistant plants and lichen as well as dormant spores. This will also help to delay any re-growth of moss. To maintain a problem free surface, re-apply at least once a year. Use a brush and hose to agitate and remove dead spores.

Can be used all year round to eradicate or prevent organic growth - safe for animals & children once dry.


To download the Safety Data Sheet (SDS) click here.