Are Hard-Won Customers Leaking Away?
approx 5-7 minute read
You work hard to win customers. The problem is what happens next
Picture a bucket.
Everything you do to win customers pours into the top. Referrals. Your website. Networking. Repeat enquiries. Word of mouth. Ads, if you run them. All of it fills the bucket.
And filling it takes real effort. Time, money, or both.
But a lot of buckets have holes in the bottom.
You win a customer. You do great work. Then you go quiet. Months later they need you again, but someone else has stayed in view, so they call them instead.
Nothing went wrong with how you won them. They just ran out the bottom.
That is the bit most businesses never fix. They keep topping up the bucket instead of plugging the holes. And plugging the holes is far cheaper than filling it again.
We will come back to the bucket. First, the holes.
The expensive habit nobody notices
Most businesses pour the bulk of their effort into chasing new customers.
Fair enough. New leads feel like progress.
But the numbers do not support treating new business as the whole job.
In Marketing Metrics, Paul Farris puts a figure on it that gets quoted everywhere, because it is hard to argue with. The probability of selling to an existing customer is 60 to 70%. For a brand new prospect, it is just 5 to 20%.
Read that again. You are several times more likely to win work from someone who already knows you than from a stranger you have never met.
It compounds, too. Bain & Company’s long-cited research found that even a small lift in customer retention drives a big jump in profit, because you keep earning from people you have already won once.
So if all your energy points outward, you are doing the hard, expensive part over and over. While the easy wins quietly leak away.
Hole one: you disappear after the job
This is the most common one we see.
The work finishes. The relationship goes cold. You are no longer front of mind.
The fix is not complicated. Stay in view.
A simple monthly email does most of the work. Not a hard sell. A short, useful note. A deadline worth knowing. A tip. A quick answer to a question customers always ask.
The point is that when they next need you, you are the obvious call. And unlike most ways of reaching new people, you can contact your own email list as often as you like, for next to nothing.
Do not write off the letterbox either. A well-timed piece of direct mail to a past-customer list cuts through in a way a crowded inbox often cannot. A postcard with a genuine offer, or a simple “we are still here” note, lands on the desk and stays there. Paired with email, it is a powerful nudge for the customers you already have.
Whatever it cost you to win these people the first time, this is how you avoid paying it twice.
Hole two: happy customers who never refer you
Your customers are happy. They just never think to recommend you, because you never made it easy.
Word of mouth and online reviews are the quality-lead engine for any service business. They are also the leads people trust most. BrightLocal’s 2025 consumer research found 98% of people at least occasionally read online reviews for local businesses, and that many trust them as much as a personal recommendation.
So ask. On purpose. Build it into the end of every job.
A friendly request for a referral. A simple nudge to leave a review. It feels small. It compounds.
Hole three: the one almost nobody fixes
Here is the big gap. Remarketing.
Someone visits your website, looks around, then leaves without getting in touch. Most businesses treat that as a dead end.
It is not. With remarketing on social and display ads, you can stay gently visible to those people as they carry on browsing elsewhere.
Think about who these people are. They already showed interest. Or they already know you and have just drifted. The same Marketing Metrics research pegs the odds of selling to a past customer at 20 to 40%, still miles ahead of a cold prospect. Reaching them again is warmer, and cheaper, than starting from scratch.
For most businesses this is the single biggest untapped opportunity in their digital marketing. The audience is already there. They are simply not being followed up.
If the email list catches the customers who go quiet, remarketing catches the visitors who never quite got in touch. Same idea. Different hole.
What this looks like for different businesses
The principle is the same. The flavour changes by sector.
Professional services
Solicitors, accountants, consultants, brokers. Your work is recurring and trust-led.
A regular email keeps you top of mind for the next matter. Reviews reassure the cautious. Remarketing keeps you visible to the people researching quietly before they ever make contact.
Trades
Repeat work and referrals are your lifeblood.
A quick follow up after a job. An easy review ask while the work is fresh and the customer is happy. Remarketing to people who got a quote but did not book yet.
Hospitality
You live and die by people coming back, and by being recommended.
An email list for offers and events. Reviews that pull in the next booking. Remarketing to people who looked at your menu or booking page and drifted off.
Where to start
You do not need to do all of this at once. Pick the hole costing you most.
- Never speak to past customers? Start a simple monthly email. Back it up with the odd mailer.
- Customers happy but quiet? Build a review and referral ask into your process.
- Visitors landing and vanishing? Turn on remarketing.
Back to the bucket
You work hard to fill it. Whatever brings customers in, it takes effort to get them there.
But filling the bucket is only half the job. The other half is making sure it holds.
Stay in view. Ask for the referral. Follow up the people who already know you.
Do that, and every bit of effort you put into winning a customer keeps paying you back, long after the work that won them is done.
Want a hand plugging the holes?
This is exactly the sort of thing we help businesses with every day. From the activity that fills the bucket to the email, remarketing and print that keep it full, we can put the whole system together for you.
Have a chat with your local Nettl studio and we will help you stop the leaks.
Getting more of those first-time visitors to convert in the first place is a story for another day. For now, the quickest win is holding on to what your effort has already won.
