Reach and impressions are the two numbers most likely to appear at the top of a social media report, and the two least likely to tell a contractor anything about whether the work is paying for itself.
They are worth understanding anyway, partly because one useful number is hidden between them.
The definitions, briefly
Reach is how many different people saw the content. One person, counted once, however many times they saw it.
Impressions is how many times it was displayed. The same person seeing it three times is three impressions and one reach.
So impressions are always equal to or higher than reach, and the gap between them is the interesting part.
The number worth calculating: frequency
Divide impressions by reach and you get frequency, the average number of times each person saw it.
This is the diagnostic neither metric provides alone:
- Around 1 to 2: most people saw it once. Fine for a one-off announcement, weak for anything meant to be remembered.
- Around 3 to 5, a reasonable range for a campaign built on recognition.
- Above 7 or 8; you are showing the same thing to the same small group repeatedly. Your audience is too narrow, your budget too concentrated, or your creative has been running too long. This is the point at which advertising starts to irritate.
High frequency with flat results is one of the clearest signals in social advertising, and it is invisible if you only read the two headline numbers.
Why neither belongs at the top of your report
Reach and impressions share a property that makes them appealing and misleading: they almost always go up when you spend more. A report leading with them can show improvement every month while the phone rings no more than it did.
For a contractor, the outcomes that matter are calls, form submissions, direction requests and booked jobs. Those are the numbers that should sit at the top, and reach and impressions belong underneath as context for why they moved.
If a report you receive leads with impressions, it is fair to ask what happened to the calls.
The exception: when recognition is the goal
There is one case where these metrics genuinely are the point.
Some trades have no demand to capture. Nobody plans a sewer replacement, and roofing demand does not exist until a storm arrives. For those campaigns, as the sewer and drain case sets out, the honest goal is being remembered later, and reach with a sensible frequency is a reasonable proxy for that.
Even then, watch branded search and “I’ve seen your name” calls alongside it. Those confirm the recognition actually landed.
What to watch instead
- Calls, attributed to source. This needs call tracking; without it the main conversion is invisible.
- Cost per booked job, not cost per lead. A cheap lead that never books is not cheap.
- Branded search volume, people searching your company name is the cleanest evidence that awareness work is working.
- Saves and shares over likes. Someone saving a post about frozen pipes intends to use it.
Frequently asked questions
What is the difference between reach and impressions?
Reach counts unique people; impressions count total displays. One person seeing a post three times is three impressions and one reach, which is why impressions are always equal to or greater than reach.
What is a good frequency?
Roughly three to five for a campaign meant to build recognition. Above seven or eight you are showing the same creative to the same narrow group repeatedly, which wastes budget and irritates the audience. Frequency is impressions divided by reach.
Should reach and impressions be my main metrics?
No. Both rise almost automatically with spend, so a report can look like progress every month while nothing changes on the phone. Calls, form submissions and booked jobs belong at the top; these two belong underneath as context.
When do these metrics actually matter?
When recognition rather than lead capture is the goal: sewer, drain and off-season roofing campaigns, where there is no existing demand to catch. Even then, check branded search alongside them.
Where to start
Open your last campaign report and divide impressions by reach. If the answer is above eight, you have found something worth fixing before you change anything else.
Real Time Marketing has worked with home service contractors since 2016: plumbing, HVAC, roofing, electrical and other trades, nationwide, from our office in Bradenton, Florida. Agreements are month-to-month. See our social media marketing service or book a strategy call.