Your old customer list is work you've already paid for

Every past customer cost you an advert, a quote and a visit to win, and most never hear from you again. We bring them back with the right message for each one, by text, email or a handwritten letter, and book the replies straight into your diary. It's the quickest work you'll ever win.

A business owner at his kitchen table, smiling at replies arriving on his phone

Corrow Heating customers

5 shown

  • Helen MarshBoiler installed 2014
  • H. MarshOld spreadsheet, same address
  • Raj PatelLast service 2022
  • Ellis Lettings8 flats, last job 2021
  • Tom OkaforOne repair, 2023

Past customers sit in a job system, a spreadsheet and an inbox, with duplicates.

Our Corrow Heating demo, with sample customers. Each step is something we build.

Why old customers drift away

The list is a mess
Customers are spread across a job system, an old spreadsheet, a phone and an inbox, with duplicates and gaps.
Everyone gets the same blast
A newsletter to the whole list says nothing to the person whose boiler is now ten years old.
Replies go nowhere
When someone does answer, nobody books it in quickly, so the moment passes.

What your old list could be worth

An estimate, worked out in the open. Change any assumption and the sum redoes itself.

Estimated work from one run
£9,408
Customers contacted
840
Estimated jobs or orders
34

How we got there: 1,200 customers × 70% contactable = 840. × 4% who book again = 34, × £280 = £9,408.

Our starting numbers are for a small heating firm. Move the sliders to yours and see what your old list is sitting on.

How we start

  1. 1

    Gather every list into one

    Job system, spreadsheets, accounts software and inboxes, merged and de-duplicated.

  2. 2

    Split by what they bought and when

    Service due, equipment ageing, past big spenders, one-off buyers: each group gets its own reason to come back.

  3. 3

    Pick the channel for each group

    A text for a quick booking, an email with detail, a handwritten letter for your most valuable customers.

  4. 4

    Answer and book every reply

    Replies land in one place and are booked straight into your diary, so none go cold.

Not sure where to start? Get a free audit of where your money is leaking

Questions we get asked

What is database reactivation?

Contacting customers who haven't bought from you in a while, with a reason to come back that fits what they bought before. For a trade that might be a service reminder or an upgrade on ageing equipment; for a shop, a reorder or a new range.

Is it legal to message old customers?

Usually, with care. UK rules (PECR) allow marketing texts and emails to existing customers about similar products if they were given the chance to opt out when they bought and in every message since. Post has fewer restrictions. We check how your list was collected before anything is sent.

Why handwritten letters?

They get opened. For a small group of high-value past customers, a real letter stands out in a way a text can't. We use them sparingly, where the value of one returning customer justifies it.

How many past customers do I need?

A few hundred is enough to be worth it. The estimate on this page shows the sum with your own numbers.

Sources: ICO: electronic mail marketing (the soft opt-in)

Tell us about your old customer list

Roughly how many past customers you have, where they're kept, and what they bought. We'll tell you if it's worth a reactivation run, and which group to start with.

Tell us what you need

Tell us what's going wrong

One sentence is plenty. We'll match it to things we've built and show you how we'd help, in under a minute.