New From air conditioners to water softeners: any building-services equipment

Your business card stays on the unit. Next year, the job comes back.

Your work order is done on your phone in three minutes. A QR sticker goes on the unit, and you see in money who is due for their next service.

✓ No credit card✓ Free up to 50 units✓ Works without signal
ML-2026-00142 Synced
Annual maintenance
Split AC · indoor unit · R32
Filter cleaningOK
Condensate drainOK
Outlet air8.4 °C · last year 8.9
“Indoor coil chemically cleaned, pump OK, due again next May.”
Close and send PDF
Sound familiar?

The maintenance money is sitting with your customers. Nobody reminds them.

01 · paper

Notebook, scraps, glovebox

Work orders get written at night, tired, if at all. What you measured on the same unit last year, nobody knows anymore.

02 · forgetting

Nobody sends a reminder

Customers think about their AC when it stops cooling. By then the annual service is long overdue and the warranty is at risk.

03 · searching

They find someone else on Google

If they don’t know who installed it, they call the first search result. Your work, your customer, someone else’s revenue.

How it works

Four steps, and the loop closes itself every year

1

Bring your notebook

Sign up without a card. We import your customers and units from Excel or your notebook, including the date of the last service.

2

Work on your phone

A checklist for each unit type, with last year’s readings alongside. Dictated notes, photos, signature. In basements and attics too, without signal.

3

Stick it, close it

Put the sticker on the indoor unit, scan once, and it belongs to that unit. One tap: the report is done and the homeowner gets the PDF by email.

4

Bring them back

The list shows who is due and what it’s worth. One tap sends the reminder, the homeowner books a slot, and next year they come back to you.

Three minutes on site

You talk. ThermoTrek writes the report.

Tell your phone what you did, the way you’d tell a colleague. ThermoTrek turns your note and the checklist into a proper report your customer can understand. You check it, the homeowner signs, and the PDF is on its way.

✓Last year’s reading sits next to this year’s
✓The PDF is created on the phone, even without signal
✓Next year’s service month goes to the homeowner as a calendar entry
Dictated, 0:14
“Gree, indoor unit chemically cleaned, filters washed, condensate fine, no gas needed, outlet eight point four degrees.”
Report · draft
Work done: chemical cleaning of the indoor unit’s heat exchanger, filters washed.
Findings: condensate drain OK, no refrigerant top-up needed. Outlet air: 8.4 °C.
Recommendation: next service May 2027.
The sticker

40 millimetres that stay on the unit for years

The homeowner scans it with their phone camera, no app, no sign-up. They see who services the unit and what was done when. If something’s wrong, they request a callback with one tap and you get notified straight away.

Warranty
Proof of annual service
Selling the home
Documented condition
One-tap call
Always your number

Names, addresses and prices never appear on the sticker page. On the Pro plan, your company name and phone number are printed on the sticker too.

thermotrek.app/q/7KQ4M2XD9HPA
Serviced bySample HVAC Ltd.
Call
Split AC · indoor unit
R32 · 0.82 kg · installed 2024
Next service: May 2027
Annual maintenance
2026-05-12
OK
Annual maintenance
2025-06-03
OK
Installation
2024-07-18
OK
Public service book · no personal data
Maintenance list

On Monday morning you know how much work is waiting

Overdue units and units due within 30, 60 and 90 days, priced at your own service rate. One tap sends the reminder, the homeowner books a slot, and it becomes a work order.

ThermoTrek moves summer maintenance to spring or autumn, when you have time. In the heatwave you can stick to the installations.

Overdue and due within 30 days
€295
example
Budaörs · 2 indoor unitsOverdue€45
Érd · heat pump12 days€60
Törökbálint · gas boiler21 days€55
Budakeszi · multi split27 days€135
Send reminders (4)
Payback

One recovered service job earns more than a month of Pro.

Pro costs €25 a month. A single AC service usually earns more than that, and ThermoTrek brings it back every year, not just once.

See pricing
Pricing

Start free. Pay once it pays you back.

Starter

€0 / month

For solo technicians who want to try it.

✓ Up to 50 units, 1 user✓ Work orders, checklists, PDF✓ AI-written reports✓ Stickers and public service book✓ 25 free stickers to get started
This one brings the money back

Pro

€25 / month

€250 billed yearly, two months free.

✓ Unlimited units, 3 users✓ One-tap maintenance reminders✓ Your logo on PDFs and emails✓ Stickers with your name, 100 free✓ Booking and callback requests with notifications

Enterprise

From €50

For companies with four or more technicians.

✓ Everything in Pro✓ As many technicians as you need✓ Custom price for your team size

Prices exclude VAT. ThermoTrek is launching in Hungary first. Sticker refills come in packs of 100.

Questions

What technicians ask first

Does it work in basements and attics, without signal?

Yes. The day’s jobs are on your phone: checklists, photos, signatures, closing and PDFs all work offline. As soon as there’s signal, everything uploads by itself.

Who owns the customer list?

You do. Data is stored on EU servers, never handed to other companies, and you can export all of it at any time.

Does the homeowner need an app?

No. They scan the sticker with the phone camera and see the service book and a call button in the browser.

Which equipment does it cover?

Any building-services equipment. Split and multi-split ACs, heat pumps, gas boilers, water heaters, water softeners, water purifiers and ventilation units have their own checklists; anything else gets a service book and sticker under “other”.

How long does it take to get started?

Fifteen minutes for sign-up and your first work order. We import your existing customers and units from Excel or your notebook.

What’s on the sticker?

A unique QR code and a short ID. On Pro, your company name and phone number too. 40 × 40 mm, laminated, resistant to chemicals and UV.

What if I stop paying for Pro?

You move back to the free plan. Nothing is deleted, and the stickers out there keep showing your contact details.

ThermoTrek logo

Want to try it on your own jobs?

The first partners start in time for the spring season and help shape what goes in. We set it up together, with your customers.

All you need to start

1
A smartphone
Android or iPhone, the one you have is fine.
2
Your current customer list
Notebook, Excel or phone notes, we import it.
3
Fifteen minutes
We show you around and bring the first stickers.

No credit card, free up to 50 units.

Questions? Email [email protected]

© 2026 ThermoTrekImprintPrivacy

Imprint

ProviderMartin Horváth-Lukics, sole trader (Hungary)
Registered addressArany János u. 33, Fertőszéplak, Hungary
Registration number50869042
Registering authorityMinistry of the Interior of Hungary (register of sole traders)
Tax number67862755-1-28
Email[email protected]
ProductThermoTrek, thermotrek.hu
Hosting providerCloudflare, Inc., 101 Townsend St., San Francisco, CA 94107, USA, [email protected], cloudflare.com

Privacy notice

In short

This website uses no cookies, no visitor analytics and no forms.

Controller

Martin Horváth-Lukics, sole trader, Arany János u. 33, Fertőszéplak, Hungary, [email protected].

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If you email us

If you send an email, we process your address and message to reply and to prepare a possible collaboration, for as long as needed and at most one year. Legal basis: legitimate interest or steps prior to a contract.

Your rights

You can request access to, correction or deletion of your data, restriction of processing and data portability, and object to processing based on legitimate interest, at the email address above. You can lodge a complaint with the Hungarian data protection authority (NAIH, Falk Miksa utca 9–11., 1055 Budapest, naih.hu) or the authority where you live, or go to court. There is no automated decision-making or profiling. We are not required to appoint a data protection officer.

Effective: 23 October 2026.