Does anyone know of a good garden maintenance company?

We are looking for a garden company to come to our villa once a week to cut the grass, do weeding, trim the trees, care for the plants etc.  We have been using Qatar International Nursery but are not happy with them.  The gardeners themselves are very good but they come every week with lawnmowers that do not work.  Today, they had 2 lawnmowers in the van, neither of which worked!  The manager said he cannot afford to keep fixing the machines.  We cannot afford to keep paying them for coming and not doing the job properly!

Does anyone know of a reliable company that will come once a week, on time, with a lawnmower that will work and not cause dramas each week??