Your quiet months are not a demand problem. They are a reminder problem. People forget, then panic in peak season.
TL;DR Send the reminder four to six weeks before the season starts, not during it. Offer a priority booking window to past customers first. Text outperforms email for time-sensitive slots. Build it once and it runs every year.
Time it early
The mistake is sending in-season. By the time the first cold night arrives, everyone is calling everyone and you are competing on availability.
Send four to six weeks ahead, when they have time to think and you have empty slots.
| Service | Season | Send |
|---|---|---|
| Heating service | October onwards | Late August |
| Air conditioning | June onwards | Late April |
| Gutter clearance | Autumn leaf fall | Early September |
| Garden opening | Spring | Late February |
| Winter prep | First frost | Early October |
Two touches, not one. The early reminder, then a second nudge two weeks later to non-responders.
The priority booking window
This is what makes the reminder feel like a benefit rather than an ad.
Booking opens for autumn heating services on Monday. Sending this to previous customers first so you get the pick of the dates before it goes out generally. Reply with a preferred week and I will hold it.
Why it works
- It is a genuine advantage, not a manufactured one.
- It rewards being an existing customer without a discount.
- It creates a real deadline that is not artificial urgency.
- It fills your diary before your competitors open theirs.
Reply-to-book beats link-to-book for this message. Replying is one action. Clicking through to a calendar is four.
Email or text
Text for anything time-sensitive or short. Booking windows, weather-triggered alerts, last-slot notices.
Email for anything with explanation. Why the service matters, what it includes, seasonal advice.
Both need consent. Texting a customer who never opted in is a compliance problem, not just a courtesy one. Collect an explicit SMS opt-in at the point of the first job, and keep the record.
Keep texts under 160 characters and always identify yourself in the first three words. People delete unknown numbers.
Sicc Heating here. Autumn service slots open Monday, previous customers first. Reply YES and I’ll hold you a week. Reply STOP to opt out.
Weather-triggered messages
Higher effort, unusually effective, use sparingly.
Good triggers
- First frost forecast within a week.
- A named storm on the way.
- An unusually hot week forecast.
- Heavy rain after a dry spell, for drainage work.
The message should be useful first, promotional second.
Frost forecast Thursday night. If your outside tap is not lagged, worth doing before then, takes five minutes and a £3 cover from any hardware shop. If you would rather we did it while we are out your way, reply and I will add you.
Giving away the DIY fix builds more trust than withholding it, and most people still call you.
Limit to two or three a year. Weather alerts stop working the moment they feel like a sales trigger.
Multi-year cadences
Build the sequence to keep going without anyone touching it.
Structure
- Job completed. Log the service type and date.
- Automation calculates next due date based on the recommended interval.
- Reminder fires at due date minus five weeks.
- Second nudge at due date minus three weeks if no reply.
- If booked, reset the clock.
- If not booked, mark for the seasonal list and try again next cycle.
Never let someone fall out of the sequence entirely just because they skipped one year. Move them to a lighter cadence instead.
Segment the message
The same reminder to everybody performs worse than three versions.
- Annual customers. “Same time as last year, want me to book you in?”
- Lapsed, over 18 months. Softer, reintroduce yourself, mention the last job by name.
- Members and contract holders. “Your included service is due, when suits?”
- New customers, first cycle. Explain why the service matters, because they do not know yet.
Measure it
- Booking rate per send, tracked by segment.
- Time from send to booking. If it is long, you sent too early. If bookings cluster in the last week, you sent too late.
- Diary fill rate at four weeks out compared with last year.
- Opt-outs. A rising SMS opt-out rate means the frequency is wrong.
Common mistakes
- Sending to everyone at once. Stagger over several days so you can handle the replies.
- No reply path. Every reminder needs a way to respond in one action.
- Forgetting to pause it for customers who have already booked. Nothing annoys like being reminded to book something you booked yesterday.
- The same copy every year. Rewrite it annually. People remember.
Build the autumn sequence now, before autumn. It is the single highest-return automation a seasonal service business can own, and it takes an afternoon to set up once.
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