Thanks for submitting ALL of your ideas! I really, REALLY like them, i.e., use of colors, "freshness," etc., BUT- the owner really wants the water droplet idea used. Please read the additional comments I placed in the "Discussion" area, and give it another shot. I believe with the additional instructions in the discussion area, you're going to come back with something FANTASTIC!
Here is a new concept. There are 3 water drops. One represents each service - heating, cooling and plumbing and they are an abstract C together for Conway. I would be careful with how you add the plumbing. You don't want an icon that will only represent plumbing. If people didn't know you were already in business for heating and cooling then they might mistake you for only a plumbing company. Plus you want your new logo design to be timeless so that in ten years you don't want to change the icon because everyone now knows it's all 3 services that you provide... just some thoughts for you! ;0) Let me know what you think on this concept I am submitting.