Yes we do!  This is typically something we prefer to do as part of a larger project, but it is an area we have expertise in.  This is a critical component of any landscaping design. We make sure that our clients know what level of watering is required in order to ensure the success of their new look.  Fort Worth and many other local communities limits our watering to two days per week. This can be more than adequate, especially considering the drought tolerant plants we normally recommend.
If you do need just an irrigation system installed, it's something we can review.  We'll evaluate our projects and see how it fits into our schedule.  If it's a project that just isn't right for us, we'll be sure to inform you up front.  We'll also make a recommendation to a company that we know and trust.  Irrigation experts are licensed within the State of Texas.  Therefore, make sure that whomever you deal with when it comes to irrigation systems has the right credentials.