I priced a solar system using signature solar I'll spare the details, but it was $15k. I did not add roof mounts or wiring.

I then asked a local installer with a good reputation for the entire package, similar setup but with different tier 1 panels (they had a different brand in stock), all the permitting, support and installation and it came to $30k.

I am happy so far with the process they followed and their ability to take my suggestions and support the components I had already researched. I am just not used to paying 100% markup for installation, permitting and support so my question for this group; is this a reasonable amount?