Do SMS Boiler Service Reminders Work? We Ran The Numbers.
- 1. Get more boilers serviced with SMS reminders from GES
- 2. Why email reminders get missed
- 3. Do SMS reminders work? What our data shows
- 4. When a text makes the most difference
- 5. What SMS reminders cost
- 6. How to set up SMS reminders in GES
- 7. What a good SMS reminder looks like
- 8. Turn them on before the next reminder goes out
- 9. Get more boilers serviced with SMS reminders from GES
- 1. Get more boilers serviced with SMS reminders from GES
- 2. Why email reminders get missed
- 3. Do SMS reminders work? What our data shows
- 4. When a text makes the most difference
- 5. What SMS reminders cost
- 6. How to set up SMS reminders in GES
- 7. What a good SMS reminder looks like
- 8. Turn them on before the next reminder goes out
- 9. Get more boilers serviced with SMS reminders from GES
Most heating businesses email boiler service reminders to their customers, and we know they work. But comparatively few send SMS reminders too… so how effective are they?
That’s the question we set out to answer when we analysed the reminders sent by Gas Engineer Software. From 18 months of data, we found that customers who get an SMS service reminder are up to 50% more likely to book in than those who were only emailed.
Unlike emails, SMS costs money, so it’s easy to see why many don’t bother. But even a single booked job pays for hundreds of texts. In this article, we’ll show you why more heating & plumbing businesses should bother with SMS reminders, what they cost, and the simplest way to set them up.
- 1. Get more boilers serviced with SMS reminders from GES
- 2. Why email reminders get missed
- 3. Do SMS reminders work? What our data shows
- 4. When a text makes the most difference
- 5. What SMS reminders cost
- 6. How to set up SMS reminders in GES
- 7. What a good SMS reminder looks like
- 8. Turn them on before the next reminder goes out
- 9. Get more boilers serviced with SMS reminders from GES
- 1. Get more boilers serviced with SMS reminders from GES
- 2. Why email reminders get missed
- 3. Do SMS reminders work? What our data shows
- 4. When a text makes the most difference
- 5. What SMS reminders cost
- 6. How to set up SMS reminders in GES
- 7. What a good SMS reminder looks like
- 8. Turn them on before the next reminder goes out
- 9. Get more boilers serviced with SMS reminders from GES
Get more boilers serviced with SMS reminders from GES
Automatic gas and oil service reminders by email and text. Try Gas Engineer Software free for 14 days, no card needed.
Start your free trial →Why email reminders get missed
Reminders only work if the customer sees it, and emails can be missed with people receiving 5, 10, 20+ emails per day. It’s easily buried, can end up in spam, or simply be forgotten about.
That being said, for a 100% free option, emails are hugely effective compared to sending nothing at all.
If you haven’t set up reminders yet, start with our guide to setting up gas boiler service reminders. Everything below builds on that.
So why send SMS reminders as well? In short, they have fewer places to hide. People read them as they receive them, and they get the message across in as few words as possible.
Do SMS reminders work? What our data shows
From more than 2.6 million gas service reminders sent through GES between February 2025 and September 2026, we checked whether a service or gas safety record was booked within the following 45 days.
| Reminder setup | Customers serviced within 45 days |
|---|---|
| Email reminders only | 19% |
| SMS reminders alongside email | 29% |
Part of this gap will be down to the businesses themselves. Those who have set up SMS reminders are probably more likely to be on top of their repeat business strategy, so we also checked the customers inside the texting businesses.
We found that customers who received an SMS reminder were similarly around 40 to 50% more likely to book in than those who didn’t (for example, because the account had run out of SMS credit).
When a text makes the most difference
A SMS reminder gets the most value for:
- Customers with no email, or an old one. If the email reminder is going nowhere, the text is the only reminder they get.
- Landlords. They’re legally required to get a gas safety check done every year, so it’s more about reminding them at the right time.
- Customers who’ve ignored emails before. Not everyone checks their emails religiously, and some reminders can be genuinely missed.
Customers who get an SMS reminder are up to 51% more likely to book their service.
What SMS reminders cost
Through GES, each SMS reminder costs 10p plus VAT, so 12p a text. Send 300 a year, and you’re looking at £36.
While that might seem like yet another business expense, even if your 300 reminders helped you book just one extra job, you’ve more than earned it back.
How to set up SMS reminders in GES
SMS reminders work alongside the automated reminders you already send by email, and all you need to do is switch them on from the web portal:
- Log in at live.gasengineersoftware.co.uk and open the SMS reminders page.
- Click Enable. You’ll see the price per text (10p plus VAT) before you confirm.
- Pick which reminders go by text: gas service reminders, oil service reminders, or both.
That’s it. You can customise your SMS message if you like, and from then on your reminders go out by text as well as email.
We’ve also made SMS reminders easier to run. Your credit tops up automatically, so you won’t run out mid-month and miss customers, and your texts are billed separately from your subscription.
What a good SMS reminder looks like
Wording matters more than you’d think. We’ve found our default template works effectively, but only you know your customers and brand.
For a service reminder, keep it to the basics:
- The customer’s name, so it doesn’t read like spam
- What’s due and roughly when, such as their boiler service next month
- One clear way to book, usually a phone number
- Your business name, so they know who it’s from
Something like:
Hi Sarah, your annual boiler service with DM Heating is due next month. Give us a call on 01234 567890 to book a time that suits. Thanks, Dave
Turn them on before the next reminder goes out
If you’re already on GES, switching SMS reminders on takes under a minute from the SMS reminders page. Your next reminders will go out by text too.
Not using Gas Engineer Software yet? Start a 14-day free trial with full access and no card needed. Set up your service reminders and see how many more customers book in.
Get more boilers serviced with SMS reminders from GES
Automatic gas and oil service reminders by email and text. Try Gas Engineer Software free for 14 days, no card needed.
Start your free trial →