With all due respect the format for quoting prices in a contractual context without ever meeting, talking to, or seeing a requester's property when the matter at hand involves guaranteed variation from building to building, it's just a really awkward format to have an anonymous individual post a text question about something of which they know nothing and their only point of reference in the end is a dollar amount, in my opinion begs for misunderstandings.

It's not like a service provider is quoting prices for a pound of wheat shipped ala eBay when that is not what is going on here at all.

Secondly, since I am on a roll here....

The concept whereby a potential client specifies a date and time to have something completed, when the provider has a little text information at best,
and then the provider has to quote a dollar amount and date and time when you don't even know for a few days whether you've been selected, means the provider has to hold a time slot, maybe a whole day open in their future schedule "just in case" some requester accepts a quote,

Forgive me, it's all kind of weird. I don't get this format of back and forth unless I merely quote an hourly rate and an in initial service charge just to come out and "take a look" to try and decifer what the h the customer is talking about.

This all smacks of a format where the client is going to accept the low bid every time and that's just begging for trouble for both parties.

And I may respond to another few requests.