How to pick a service radius you can actually work

Every prospecting tool asks you for a radius, and almost nobody thinks about the number they type. Fifteen miles sounds reasonable. Twenty-five sounds ambitious. Fifty sounds like growth.

None of those are answers, because a radius is not a measure of how far you are willing to drive. It is a measure of how much margin you are willing to give away to drive there. The right number falls out of your route, your crew, and the size of the jobs you sell — and once you look at it that way, the number usually gets smaller and the list gets better.

A radius is a cost, not a reach

Distance on a map and distance in a workday are different things. Eight miles across a downtown grid at 8am can cost more time than twenty on a highway at ten. If you sell recurring work — nightly cleaning, quarterly maintenance, monthly service visits — that difference does not happen once. It happens every single visit, for the life of the contract.

So the honest question is not "how far will I go?" It is: at what distance does this account stop being worth servicing? That number exists. Most owners know it in their gut and have never written it down.

That number is worth making concrete, because the gap between a radius that feels reasonable and one you can service is usually invisible until it is written down as hours and money:

Start from the route, not the map

The fastest way to size a radius is to stop looking at a circle and look at your invoices. Pull your best accounts — the ones you would take ten more of — and find where they actually are.

• Plot your three most profitable accounts. Not the biggest. The most profitable, after drive time.
• Measure from your yard or office, not from the middle of the city. The circle starts where your trucks start.
• Note the furthest one you would happily repeat. That distance is your working radius. It is often much smaller than the one people type into a search box.
• Note the one you quietly resent. That distance is your ceiling, and it is a useful number too.

Owners are frequently surprised here. A commercial cleaning company convinced it serves "the whole metro" often finds its profitable work sits inside six or seven miles, clustered along two corridors. That is not a limitation. That is a density advantage, and it is the thing to prospect into.

One number is really three

The reason a single radius feels wrong is that you are trying to make one number do three jobs. Split it.

Three bands turn one uncomfortable compromise into three clear decisions. It also gives your outreach a different tone in each: the core band lets you write "we are on that block on Tuesdays", which is the most persuasive sentence available to a local service business, and one no national competitor can copy.

What changes when you widen it

Widening a radius does not add prospects evenly. It adds them in a ring, and the ring is where your worst economics live. Three things move at once:

• Count goes up fast. Area grows with the square of the radius, so going from ten miles to fifteen more than doubles the ground covered. This is why a wider search feels productive.
• Relevance goes down. The new businesses are further from your existing references and your existing route, so the two strongest things you can say in a first email both get weaker.
• Cost per serviced account goes up. Every new account in the outer ring is a trip, not a stop.

Widening is the right move when your core band is genuinely worked out — when you have contacted the fitting businesses inside it and know the answer. Widening because the list feels short is how you end up with a spreadsheet of people you will never sensibly serve.

A worked setup

Say you run a commercial cleaning company out of uptown Charlotte, ZIP 28202, with two nightly crews already working a corridor south-east of the city. The setup is not one search. It is three, each with its own job.

The categories differ per band on purpose. In the core band, small and frequent wins, because the drive is already paid for. In the stretch band, only large and anchor-like is worth it. Running the same category list at every distance is the mistake that makes wide searches feel useless.

Re-run it quarterly

A radius is not a setting you configure once. It follows your route, and your route changes every time you win or lose an anchor account.

• Win a big site on the north edge? Your core band just moved. Businesses that were stretch last month are now on the way.
• Lose the account that justified a corridor? Everything you were servicing around it just got more expensive. That is a re-price, or a re-prospect, before it quietly eats a quarter.
• Added a crew? You did not widen your radius. You bought a second one, and it should be centred wherever it makes routing sense.

Put it on the calendar with your other quarterly numbers. It takes ten minutes and it is the difference between prospecting into your business as it is, and prospecting into the business you had two years ago.

The circle is the cheapest decision in prospecting to get right and one of the most expensive to get wrong, because everything downstream — which businesses you see, what you can honestly say to them, whether the work is worth having — is already decided by the time you press search.