It has to be remembered, on the day they need your trade, by someone who has met a dozen companies since. For most trades, that is a moment that comes around every few months or even years.

Your ProPal number
The same contact you handed over covers the rest of the house. That is why it stays in the phone between the jobs that are actually yours.
And when they need you again
Every household that saves your contact stays yours. Months later, when what they need is a service you offer in an area you serve, ProPal brings that job back to you before it goes to anyone else.
They do not have to remember your company name. They do not have to keep up with a business card you left them. They text the contact they already use for everything else, and it comes to you.

Then it gets passed on
Your customer does not have to think “I know a good roofer.” They only have to think “use this number, it will get you who you need.”
The household on the other end of that text was never on your list. They are now.
ProPal
Text message
What you leave behind
Nobody passes a roofer’s number to a friend who needs an electrician. There is no reason to. A contact that covers the whole house is different — it is worth passing on, and people do.
Whoever ends up with it is attributed to the company that handed it over first. You did not knock on that door, buy that click or bid on that lead.

Keep the trucks, the yard signs, the ads, the referrals and the search results. Win the customer however you win them. ProPal is what happens to that relationship afterwards.
On the driveway
After a storm, every roofer on the street is making the same offer. You can make a different one: save this contact, it gets you back to us for roofing, and it handles the rest of the house too.
That is a reason to keep it. A business card is a request to be remembered.
Screen capture to come
Homeowner saving the ProPal contact straight after a roofing conversation, roofer shown as the originating provider
Nothing about how you work has to change, but how you acquire, retain and communicate with customers gets a whole lot smarter.