Geofencing Ads: What They Are and Whether They Actually Work

Geofencing gets pitched hard to local businesses. The sales pitch is compelling: draw a virtual fence around your competitor's location, show ads to everyone who walks inside, steal their customers.

It sounds like a cheat code. Sometimes it works. Often it is sold as something far more precise and powerful than it actually is.

Here is what geofencing really does, where it genuinely helps, and the specific claims you should push back on.

What Geofencing Actually Is

Geofencing means targeting ads to devices based on physical location. You define a geographic boundary, and people inside it become eligible to see your ads.

That is the whole concept. Everything else is a variation on how the boundary is drawn and how long someone stays targeted after leaving it.

There are three flavors worth distinguishing:

Radius targeting. The simplest version, and available free inside Google Ads and Meta Ads. You target a radius around an address. If you are running ads already, you are almost certainly using this.

Geofencing. Tighter boundaries around specific buildings or areas, often with a dwell-time requirement so passers-by are excluded.

Geoconversion or geoframing. The aggressive version vendors charge premiums for. Someone who entered a location is tracked and served ads for days or weeks afterward, sometimes across other devices in the same household.

That third category is where the impressive claims live, and where the claims deserve the most scrutiny.

Where It Genuinely Works

Geofencing earns its keep in a few specific situations.

Events and trade shows. If your customers are gathered in one building for three days, targeting that building is legitimately effective. Home shows, conventions, county fairs. The audience is concentrated, relevant, and time-bound.

Genuinely local, high-frequency businesses. Restaurants, coffee shops, gyms, and retail near offices or campuses. Proximity is a real factor in the decision, so location targeting maps onto actual buying behavior.

Large service areas that need splitting. If you serve Spokane and Coeur d'Alene, tighter geographic control lets you run different messages and budgets per area instead of averaging both together. This is straightforwardly useful.

Job sites and neighborhoods. For a roofer working a specific subdivision after a hailstorm, targeting that subdivision while trucks are visible on the street is genuinely smart.

Where It Falls Apart

Competitor conquesting. This is the headline pitch and the weakest use case for most local service businesses.

Think about who is physically inside a competitor's building. For a retail store, those are shoppers, and reaching them may be worthwhile. But for a service business, the people at your competitor's office are their employees, their delivery drivers, and the occasional visitor. You are paying to advertise to their staff.

Worse, for most home services, nobody visits your competitor's location at all. Customers call, and a truck comes to the house. There is no foot traffic to intercept.

High-consideration purchases. Someone standing in a parking lot is not choosing a foundation repair contractor. That decision involves research, quotes, and often a spouse. Location at a single moment tells you very little.

Precision claims. Location data is less accurate than the pitch implies. GPS is good outdoors, considerably worse indoors and in dense areas. Some vendors work from IP addresses and wifi, which can be off by a wide margin. If a vendor promises they can fence one suite in an office building, be skeptical.

Scale. Tight fences produce small audiences. Small audiences mean thin data, slow learning, and high costs per result. Many geofencing campaigns underperform simply because they never reach enough volume to optimize.

The Pricing Problem

Here is the part that annoys me most.

Radius and location targeting are built into Google Ads and Meta Ads at no extra cost. You can set a radius, exclude areas, adjust bids by location, and target specific towns today, for free.

Some vendors repackage this as a premium product with a separate monthly fee, and the underlying delivery is the same platform targeting you already have access to.

Before paying a geofencing specialist, ask exactly what they are doing that cannot be done in your existing ad accounts. There are legitimate answers, particularly around long-window retargeting of past visitors and access to certain data providers. But make them give you the answer.

Questions to Ask Any Geofencing Vendor

How is location determined? GPS, IP address, or wifi? GPS is the most accurate. IP-based targeting is much rougher than most pitches suggest.

What is the dwell time requirement? Without one, you are paying to reach people driving past at 45 miles an hour.

How long does targeting persist after someone leaves? This is the real differentiator versus standard radius targeting.

What is the expected audience size? If it is a few thousand devices a month, your campaign may never gather enough data to work.

How is success measured? “Impressions delivered“ is not a result. Walk-ins, calls, and form fills are.

Can I see this in my own ad account? If it runs through a black-box dashboard you cannot audit, you cannot verify what you are buying.

What We Usually Recommend Instead

For most local service businesses, the honest answer is that ordinary location targeting inside Google Ads and Meta Ads, set up properly, captures nearly all of the available value.

That means:

• Targeting the towns and zip codes you actually serve, not a lazy 50-mile radius
• Excluding areas you do not want work in, which is often more valuable than the inclusions
• Separating campaigns by region so budget follows performance
• Using “presence“ targeting rather than “presence or interest,“ so you reach people who are actually there
• Bidding up in the areas where your best jobs come from

That is not exciting, and nobody sells it as a proprietary technology. It also tends to work better than a premium geofencing package sold on a promise of stealing competitors' customers.

The Honest Summary

Geofencing is a real capability with narrow, legitimate uses. Events, dense urban retail, neighborhood-level campaigns, and multi-region budget control are all reasonable applications.

Competitor conquesting for home services is mostly a story, and the precision claims are usually oversold. If someone is charging you a premium for geofencing, make them explain what they are doing beyond the location targeting your ad accounts already include.

If you are being pitched geofencing right now and want a second opinion, send us the proposal. We will tell you which parts are real.