The second office is supposed to add territory. Too often it just moves some of the first office's work down the road.
The failure mode I keep seeing with multi-location coverage for home services is simple. Owners open a second office close to the first, because close feels safe and the drive is short. Then both locations show up for the same searches, on the same streets, and the new office books jobs the old one would have booked anyway. Revenue moves from one column to another. The map looks bigger. The business is not.
That is not bad luck. It is overlap, and overlap is something you decide, not accept.
Overlap is a variable, not a fixed cost
The instinct is to treat the space between two offices as fixed: put the new one wherever the next town happens to be, and whatever overlap you get is just the price of a second location. It is not fixed. It is a dial, and you set it by choosing how far apart the two offices sit.
Think in drive-time rings instead of dots on a map. Each office serves the customers inside a reasonable drive, the ring where you can dispatch a truck without the job going underwater on windshield time. When two offices sit close, those rings pile on top of each other, and the shared middle is the ground both fight over. Push the offices apart and the rings still touch, but the overlap shrinks. Push them further and each covers streets the other never reaches.
So the question is not "how much overlap is normal." I will not give you a percentage, because there isn't a right one. The question is: how much of the metro do these two offices reach together, and how little of it are they fighting each other over? You want the first number high, the second low, and both move when you move the second office.
Which town is the new office actually for?
The clean way to keep overlap low is to give each office a job. The first office already has one: the town it sits in and the streets around it. The second office needs its own, and the mistake is opening it before you have decided what that is.
A second office that is "for" a specific town, one the first office barely reaches, comes with built-in separation. Its ring points at new streets. A second office "for" the same customers the first one already serves, just from a different address, is overlap by design: an expensive way to reserve seats you already had.
This is where the adjacent-town decision does double duty. Picking the right next town is not only about that town's demand and competition, covered in which adjacent town to pick. It is also about how far that town sits from home. A strong candidate that happens to be far enough out to carry its own ring solves the coverage problem and the overlap problem at once. The competition read matters too, because competitor density, not count, decides whether the new town is winnable before you worry about how it fits your footprint.
A hypothetical: one plumber, two towns
Picture Marcus Bell, who runs Bell Plumbing out of Harlow and wants a second office. His first thought is Ashfield, about eight minutes up the road. It feels safe. He knows the area, his trucks already pass through it. But Ashfield sits well inside the ring he already serves from Harlow. A second office there would light up for "plumber near me" on streets his Harlow crew already covers. The two offices would spend their days bidding against each other for jobs Bell Plumbing was already getting.
Now look at Crestline, twenty minutes the other direction. Bell trucks reach the near edge of it on a good day and rarely go deeper. Almost nobody there thinks of Bell Plumbing first. An office in Crestline points its ring at streets Harlow never touches. The two rings brush at the edges, share a road or two in the middle, and that is the whole of the overlap. Same company, same number of offices, completely different coverage.
Crestline is the second office. Not because it is bigger or closer, but because it is for somewhere the first office isn't. The eight-minute option would have felt easier every day and split one office's revenue across two rents for no new ground.
The framework: keep overlap low on purpose
Before you sign a second lease, walk these five:
- Draw the ring you already serve. Honestly. Where do your trucks actually go now, not where you wish they went?
- Name the town the new office is FOR. One town it will own, that the first office barely reaches.
- Check the gap. If the new town sits inside your current ring, the offices will fight. Widen it.
- Count the shared streets, not a percentage. How many streets would light up for both offices? Fewer is better. That is the number to minimize.
- Confirm the far town can stand on its own. Enough demand and beatable competition to justify its own address, not just distance for its own sake.
Get those right and the two offices divide the metro between them. Get them wrong and the new office spends its first year taking work off the old one's plate.
FAQ
Q: How much overlap between two offices is acceptable? There is no single right percentage, and chasing one will steer you wrong. The goal is high combined coverage and low shared ground: two offices that together reach a lot of the metro while fighting over as few of the same streets as possible. You lower the overlap by widening the distance between them, so treat it as a dial you set, not a cost you accept.
Q: Won't a second office near the first one still bring in more calls? Some, but a lot of them are calls the first office would have booked anyway. When two nearby offices show up for the same searches, revenue shifts between them instead of growing. The address changed; the customer didn't. Real growth comes from a ring that reaches streets you were not serving before.
Q: How far apart should two offices be? Far enough that each carries its own drive-time ring with only a thin band of shared streets in the middle. There is no universal mileage, because rings depend on traffic, geography, and how far a truck can go before a job stops paying. The test is coverage and overlap, not a fixed number of miles.
Q: Is minimizing overlap the same as the break-even math on a second office? No. Overlap is about whether the new office adds territory or just reshuffles the old one's work. The dollars-and-timeline side is its own decision, worked through in Is Opening a Second Location Worth It? The Real Math. A second office has to clear both bars: pay for itself, and cover new ground instead of your own.
For the plumbing-specific version of how this footprint decision plays out, see how we think about it on the plumbing side.