We need a DENY button...

I archive the request, click on the client name on the request which will take me to the client profile.  In the top right corner on the client profile (desktop) there is the option to email the client right from Jobber.  I send them a simple message that thanks them for reaching out and that they are out of the service area or that we don't offer that service add the company name and hit send.  It takes two minutes.

If you are getting a lot of unqualified leads it may be helpful to add more info to the request form, your website, or marketing to allow customers to qualify themselves before contacting you.  I try and add questions that inform customers of the services offered, limitations, and pricing expectations so they are contacting the right contractror for their project.