Helpful websites and forums
There are many helpful sites on the web with answers to landscaping, gardening, and tree surgery questions.
The best site for tree surgery, with a home owners section is http://arbtalk.co.uk the forum is a mine of useful information.
For landscaping http://landscapejuicenetwork.com/ has a forum with many subjects covered.
For all things paving http://www.pavingexpert.com/guide.htm is out standing and I can recommend his book if you fancy trying to do it yourself.
Then there is for plants the https://www.rhs.org.uk/ with its plant finder section.