Best thing by far I have ever used on my block paving. Tried other products, jet wash, burning, wire brush, All back braking. I have a lot of block paving that takes about 6 cars on the front and same again around the back. I would say I used 10/12 pouches and that cost around £40 but no more weeds all that year. Started to come back this year so treated again. I don’t mind paying £40 a year to have no more weeds as other stuff they were coming back after one week.

Have used this product both on block paving and on Indian stone slabs.
Just dilute according to instructions and apply to the surface using a fine rose watering can. Some effect can be seen quite soon on stone slabs. A section of block paving which looked ‘grimy’ gradually lightened after about two months and BlockBlitz does seem to inhibit growth of weeds. A sloping, shaded concrete slab path has remained moss free practically all year. I intend using the product every six months now to save a lot of time on jet washing!

Wasn’t sure at first what if any difference this made. Think more to do with timing but definitely noticed the drive still looks clean and weed free. Think this will end up being a useful addition to my house care routines. Every 6 months damp the drive with this and see maintenance free care. Will be lively not to have to keep jet washing

Just wanted to let you know that I am so delighted with Block Blitz on my block paving. After two applications there is such a difference, much easier than having it jet washed – too messy.

I was a bit sceptical when I ordered this as to whether it would work. Well it certainly does – on the 1st application there was a lot of white residue but having contacted Block Blitz they assured me that was normal and that any rain would further activate the residue. After 1 application most of the algae has disappeared and looks almost new. I can’t wait for 4 weeks when I can apply the 2nd treatment. I would definatly recommend this product – so much less hassle than power washing!!

I have reviewed this product previously and my opinion has not changed. I use this on a block paved drive and paving elsewhere . The drive would have terrible moss etc in certain spots and nothing would stop it even in the summer. Block Blitz has managed to do it though. I have treated it three times now and even at this time of year(March) the drive would be covered in moss between the bricks, but not now, not a patch. I will continue using this product so long as it is available.

Have tried many brands over the years (as you do) so tried this and can honestly say this is the best. Sprayed my block driveway about 6 weeks ago and it looked cleaner a couple of days later but yesterday when I went to the car it looked like a new drive had been laid. Wow won’t be using anything else now.