Like they said, it costs money to send someone out to do a consultation with you about what you want.
You are also going to get their professional advice while they are there asking them a bunch of questions about whatever you want to know about.
While you’re here, can you look at my salt system; it seems like it isn’t working correctly, what do you think?
While you’re here, can you test my chemistry and let me know what you think?
While you’re here, can you listen to my heater and tell me if you think that it sounds right?
While you’re here, can you show me how to vacuum my pool?
While you’re here, what do you think about my light, should I replace it?
While you’re here, can you look at this loose bond wire and tell me how to connect it?
While you’re here, can you watch my kids while I run to the store and maybe you can give my dog Sparky a bath before I get back?
Beyond the time at your property, you have travel to and from your property and then time to write up a detailed proposal and time to figure out everything.
They have to figure out design, engineering and architecture, parts lists, costs, scheduling, parts availability etc.
You are going to expect them to provide an expert opinion about what the best options are with some sort of financial analysis and analyses about reliability etc.
They might have 3 hours into the proposal and you might not even give them the work.
Maybe you are just window shopping and have no intention of purchasing.
Even if you intend to purchase, you might get 10 estimates from 10 different companies, which means that the person is spending 3 hours for a 10% chance at getting the job.
That’s equivalent to 30 hours per accepted proposal.
If you go to a doctor for a consultation, do you expect them to see you for free and give you free advice?