We like the 3D concept in #16,17 and 18 but they are reminding us of working on buildings. Our focus is residential homes.
Also, the colors on the siding for #15 may repel some clients because they will think that we put vibrant colors on their siding. This comes from the fact that our clients like to use different colors for their roof and siding but they never want to stand out too much from their neighbors.
#s 11,12 and 13 are straying away from clarity as to what we do. We want the clients to know, by looking at our symbol, that we are there to fix their roofs and siding.
#s 5,6 and 7 have very nice colors and the symbols are nice. Here, you can try experimenting with the symbol and making it more unique because it seems more standard than we want it to be.
You have done a fantastic job so far because you show that you are a hardworking artist and you are willing to stray away from your initial designs! Keep up the great work.