I am in the exact same situation! I hope you get some replies (useful ones, unlike this one...) Care to share the names of companies that you deemed acceptable? I have found quite a few companies that won't travel to Chandler...(I am on the Chandler border)

Judy of Treetop Tree Service is wonderful for all your gardening needs. (Besides trees) She put my irrigation system in my home in Tucson - and I have flourishing gardens even though I am currently living and working in New York. She's a real "can-do" kind of gal with a full business and employees. 520 256-5087 and tell her Sylvia sent you.

If you are still looking please contact Eric Ibsen at 480-650-8940 for your landscaping needs. Eric has been in this business for several years now.
-Ram

This could be a helpful thread to keep going. I'm in a similar boat, looking for someone in Scottsdale.

aikanae
I used a contractor called Distinctive Landscape Design. They are BBB registered and I am very happy with the work they did. I know they also work in the Scottsdale area. Let me know if you want their info. FYI no-one has registered any complaints about them at the BBB in 36 months! The few things I wanted fixed they did quickly and tried their best to fix one problem which was a miscommunication and partly my fault.

We just used David Aitchison at Around Town Landscaping. 623-780-0434. We had lighting, timer for drip, rose beds preped, new plants as well as existing plants moved. The estimate was very fair, time schedule was met and work was done as expected. I will say one thing about landscapers in our valley. The person you get the est from is the foreman and they don't show back up to do the work. You get a pickup full of non english speaking people. When we had to call David back to do some things he missed, he came with the crew and none left till I was happy. After 4 LS in 5 years he is the only one I would recomend.