aAsk a Tradesman

I have an existing concrete patio and am going to lay flagstones over the top. The stones will be around 450 mm square.

What are the pros and cons of using a mortar base or just sand?

Are these guns any good, if so which make would you recomend or is it just another tool to waste away in my tool box.And also these dry brush in polymer type things same question really .I would be very grateful from anyone that has used either Thanks Pete.Thanks everyone I am still unsure maybe i'll bite the bullet and buy a gun, the resin sounds a bit pricey.The only problem wioth pointing as you go which I think is the best method is if the customer wanfs a different colour.

HAD A BLOCKED DRIVEWAY PUT IN FEW YEARS AGO AND WEEDS KEEP GROWING FED UP PULLING THEM OUT USED WEED KILLER THEY STILL CAME BACK WHATS BEST CHEAPEST METHOD TO GET RID OF WEEDS

Have managed to cut a tree down to quite a low height but am worried about it growing back. It's too complicated to dig out the stump & roots - there's paving close by- so was wondering what a quick & effective way was to treat the stump so that the roots are killed off/ tree stops growing back.

Any advice, gratefully received!

We're due to start on a small extension to the front of a property, the next door neighbour, on the right as you look at the front of the property is one right misserable git and is saying we're not to touch his fence or enter his property!! we need to dig footings out and really could do with removing the panel, aswell as trying to point brickwork up - single story extension.
Could someone tell me what boundery is "our" clients, left or right as if looking at the front of the house... I'm hoping i can rip the panel of and shove it up his......!

We had a poor very rendering job done on the back of our house. We want to do a cover up job using a nice evergreen plant that won't destroy the house with its roots. We haven't got a clue what equipment we need or what plants to go for so any advice would be gratefully accepted.

I am laying a patio at home in a couple of weeks. The paving flags are between 22mm-30mm thick. Should I mix sharp sand with the cement or builders sand and should I use 5 parts sand to 1 part cement? Thanks.