We found a locally based gardener via the East Dulwich forum - link below.

Our garden was in a state that defeated us. I contacted Carl and he came straight back to me. The work was done in phases, each costed and reasonable. Carl and his team carried out the work they said they would, when they said they would do it meaning we could plan our lives around the work. Every time Carl came to work on the garden he always left everything very neat. (our neighbours commented on how he worked causing no disturbances). He had to clear out a lot of older plants, and take down and remove a dilapidated shed .
Carl also did some hard landscaping very well.

The work has now finished and our garden is amazing. We gave him some challenges but nothing was ever too much trouble. We had some ideas for the garden, Carl was able to realise these and add details from his own expertise. All of these were good and improved the garden. We have a lovely new fence he made to fit an awkward sized gap. He also offers ongoing maintenance.

Very highly recommended. He also really cares about getting a good job done making sure you are happy with the result. He is reachable on 07841124010

East Dulwich forum link