A homeowner whose septic tank was pumped on Tuesday is happy with you on Tuesday. By Friday they have stopped thinking about it. By the time they need you again, three years from now, they will search for a pumper and pick the one with 140 reviews over the one with 9. The 140 did not come from better work. They came from asking, at the right moment, in a way that took the customer ten seconds.
Ask once, soon, by text
The moment is a few hours after the job completes, still that day. The customer saw the truck, the problem is solved, and a text that says "Thanks for having us out today. If you have a minute, a review helps a small company a lot: [link]" gets opened. The same message the next morning is fine. A week later it is noise.
The link has to be the direct Google review link for your business, the one that opens the review box, not your profile page. Every tap you add between the text and the box loses people.
Text where you have consent to text; email where you do not. Keep a stop list and honour it the same day. Send between reasonable hours in the customer's time zone; a review request at 9:40 pm reads as spam.
Ask everyone the same way
The temptation is to ask only the customers you think are happy, or to send everyone to a form that asks "how did we do" and shows the Google link only to the ones who pick five stars. Google's policies prohibit selectively soliciting reviews and discouraging negative ones, and that form is the pattern they have in mind. Ask everyone the same way. If an unhappy customer replies to the request instead of reviewing, that is a complaint, and it goes to the person who handles complaints, today. You would rather have that reply than the review.
Not every job, every customer
A construction account serviced every Tuesday for a year does not want 52 requests. Ask once after the first service, then leave it for months, and stop entirely once they have reviewed. For septic, where a customer sees you every few years, every job is a fair moment. The program should know who has already been asked and who has already reviewed, so the office never sends by hand.
Name the crew
Reviews that name a driver are worth more, to Google and to you. "Marcus was in and out in twenty minutes and left the site cleaner than he found it" tells the next customer what to expect and tells Marcus he was noticed. Read the reviews for names and keep a tally. A small monthly thank-you for the most-named driver costs nothing and changes how the crew treats the last stop of the day.
Reply to all of them
A reply under every review, two sentences, the owner's name, no template. Under the bad ones especially: what happened, what you did about it, an invitation to call. The next customer reads the bad review and the reply together, and the reply is what they judge you on. A drafted reply from the office that a person edits and posts is fine; a reply nobody wrote is not.
Where the reviews come from
They come from the service being done, on time, with proof. The request is just the ask. If stops are getting missed, fix that first; a review request after a missed service writes the review for you. And for septic specifically, the review request and the reminder program are the two messages that turn a one-time pump-out into a customer for life.
