That sounds terrific. How do you get or ask for the email addresses? I know I recoil when someone asks for my email and ususally give them an address that is my junk mail I never look at. Thx.
In a nutshell, to get someone's email, you need to give something that's valuable and worth exchanging an email address for.
Usually, this is a free quote, inspection, discount or even a small product.
You could set up a guide (nothing too fancy, small 10 page eBook or 15 minute video), teaching a certain subject.
Think of your prospects. What information - information they're actually interested in consuming - could you provide them with for free?
Use that product to collect people's emails.
Hope I've helped.