You find customers in Facebook groups by joining the local and niche groups where your buyers already ask for help, reading each group's rules, answering questions with real detail, and letting people message you when they want more. The group admins decide what business owners may post, so the first job is to find out what they allow.
Facebook groups are the closest thing most towns have to a town square for recommendations. "Does anyone know a good..." posts show up there daily. The same habits that work on Reddit work here, with a few differences in tools and etiquette. The example is Sol, who runs a mobile car detailing business and starts with no customers in a suburb outside a mid-sized city.
Which groups have buyers
Search Facebook for your town, your neighborhood and your category, and look at the groups that come up. There are usually four useful types.
Community groups for a town or neighborhood, where residents ask for recommendations of all kinds. Interest groups for the thing you serve, which for Sol means car owners' clubs and local car-meet groups. Parent, homeowner and newcomer groups, where people with money to spend and a short list of things they need to get fixed ask each other for help. And buy-sell-trade or local business groups, which sometimes have a dedicated place for business posts.
Skip groups with thousands of members and no activity, groups full of other service providers advertising to one another, and groups in cities you don't serve. A group with 1,200 local members and three real questions a day is worth far more than one with 90,000 members and a wall of ads.
When you are starting out and the town is also new to you, how to get customers for a new business in a new town pairs well with this.
Check the admin rules
Every group has an About section and a Rules section, set by its admins and moderators. Read both before you post or comment. Typical rules: no advertising outside a designated thread, no links, no direct solicitation in comments, business owners must identify themselves, promotion allowed only on certain days or only in a pinned post. Some groups are strict about even answering a question as a business. Some welcome it.
Rules vary a lot and they change. If you aren't sure, send the admins a short message through Messenger: "I run a mobile detailing business in the area. Is it okay to answer recommendation requests with a short note that I'm a business owner, or would you prefer I only use the weekly promotion post?" Admins tend to appreciate being asked. Facebook can also remove posts and restrict accounts that spam groups, so a quiet, rule-following approach protects your personal account, which you probably also use for your family.
Join and read for a week
Don't post anything for the first week. Read what people ask, how the regulars answer, which kinds of replies get thanks and which get ignored. You are learning the group's tone and what a customer sounds like there. Notice who the admins are and who the frequent helpers are. Notice what mistakes others make: the sales-y comment that gets deleted, the person who tags themselves twenty times.
Take notes on the recurring questions. In Sol's area, he might see "my car smells like smoke, can it be fixed?", "how much does a ceramic coating really cost?", "who can clean the inside of my minivan after a road trip with three kids?" Those are exactly the questions he can answer well.
Answer questions with real detail
Reply to the questions you actually know about. Give the answer, add a specific, and keep it short. For the smoke smell: "Smoke odor lives in the headliner and the seat foam, so a surface clean usually won't hold. Ask whoever you hire if they do a steam extraction and an ozone treatment, and if it comes back in a week, the source wasn't reached. I'm a mobile detailer, so I'm biased, but I'd tell you the same thing even if I wasn't the one doing it."
That reply gives a working answer, includes a test for any detailer, and says plainly that Sol runs a business. He doesn't need a phone number in it. Anyone who wants him will click his name, which leads to his profile, where a short business description and a link to a page or number should be. Make your profile worth the click: a real photo, one line about what you do, and a way to contact you.
Disclose every time. Groups notice people who present themselves as neutral neighbors and then turn out to own the business, and the damage lasts longer than the job is worth. Look bigger without lying about it has more on building trust honestly when you are small.
Use the featured and files sections
Many groups let members add to a Featured area, a Files section or a guides tab, or run a pinned thread where businesses can introduce themselves. If the admins allow it, those are the right places for a short, plain description of your business: what you do, where, how to book, and your prices if you publish them. A pinned introduction thread is a legitimate place to post once, and people looking for you later can find it.
Ask first. Don't add yourself to a Featured section uninvited, and don't re-post an introduction every week. Once is enough.
Move to a message on request
When someone comments "can you do this?" or sends you a message, you're free to talk privately. Answer within the hour if you can, as these people are asking several detailers at once. Ask two questions (the car, the date), give a price range or a fixed price, and offer a time. Don't send a long sales message.
Do not message people who didn't ask. Sending an unsolicited message to someone who posted about something else is the quickest way to be reported and removed from the group. If you don't remember anything else from this piece, remember that rule. The lead you never followed up is about the opposite problem: people who did ask, and heard nothing.
Track which groups bring jobs
Keep a short log with the group name, the date, the question, what you said, and whether it led to a message, a booking or nothing. After a month or two, count. Suppose Sol answers 38 questions across five groups in 8 weeks, gets 11 messages, books 5 jobs at $180 each. That is $900 for roughly 30 hours of reading and writing, and the log shows that two groups gave four of the five jobs. He drops two groups and spends the time on the winners.
If the leads come through a phone number in your profile, make sure the phone gets answered. A missed call from a Facebook lead rarely calls back. See getting customers for a local service startup for the broader plan, including calls.
What Rocketship does here, and what it doesn't
Rocketship's Conversations feature works with Reddit, not Facebook, so groups are something you do by hand: reading, answering and logging. What Rocketship handles is everything around it. It finds local businesses and people by name that fit your best customers, emails them from your own Gmail, follows up, and answers the number you already have so a call from a group member doesn't go to voicemail.
Groups bring in some customers, and email and calls bring in others. Rocketship finds the buyers, emails them from your own Gmail, follows up, and books the meeting on its own. Plans that get you customers start at $24.99 a month (Launch), and every monthly plan starts with a 7-day free trial, card required. Answering your existing number is included; a dedicated line is $5 a month. You can read about the AI workers that handle it, and for another place buyers post requests, how to find people asking for recommendations online.