The verdict in three sentences
Above 1,000 service jobs a month, running after-sales on WhatsApp and Excel costs more than an app: revisits caused by missing parts and unbilled jobs add up to tens of thousands of dirhams every month. A custom after-sales app with a technician app, parts management, photos and a customer portal costs 150,000 to 350,000 AED with a Dubai agency (market estimate) and 6,100 to 10,670 EUR (4,000,000 to 7,000,000 FCFA) on the Kolonell grid. A realistic timeline is 10 to 12 weeks.
Excel, subscription software or custom: the options in 2026
A commercial refrigeration distributor (display chillers, cold rooms, ice machines) manages maintenance contracts, manufacturer warranties and urgent breakdowns at supermarkets, bakeries and hotels. Field service software on the market handles scheduling well, warranties and imported parts less so.
| Option | Indicative 2026 cost | Strengths | Limits |
|---|---|---|---|
| WhatsApp and Excel | close to zero | no change needed | no per-machine history, no reliable KPIs |
| Field service subscription | 30 to 60 USD per technician per month (market estimate) | quick start | generic workflows, weak on warranties |
| Custom, Dubai agency | 150,000 to 350,000 AED (market estimate) | local team, on-site workshops | high day rates, maintenance to negotiate |
| Custom, Kolonell grid | 6,100 to 10,670 EUR (4,000,000 to 7,000,000 FCFA) | offline app, customer portal, code handed over | remote provider, scoping by video call |
| Kolonell maintenance | 50 to 180 EUR a month (35,000 to 120,000 FCFA) | fixes and minor changes | to budget from year one |
For 30 technicians, a subscription at 45 USD per seat comes to 16,200 USD a year, more than a custom build amortised over three years.
Response times and resolution rate: what changes
Gains come from three mechanisms: every ticket is tied to a machine and its history, the technician leaves with the right part, and the signed report triggers invoicing. 2026 orders of magnitude for 1,200 jobs a month:
| Indicator | WhatsApp and Excel | With the app |
|---|---|---|
| Time to log a call | 4 to 6 hours | under one hour, ticket raised by the customer or the call desk |
| Average time to intervention | 48 to 72 hours | 24 hours on premium contracts |
| First-time fix rate | 60 to 65% | 78 to 82% |
| Revisits due to missing parts | 18% | 7% |
| Unbilled jobs | 6% | under 1% |
| Signed reports with photos | 40% | 100% |
| SLA tracking | none | alert at 80% of the guaranteed time |
First-time fix rate is the number to watch first: every point gained frees technician hours and cuts fuel spent in Dubai traffic.
Typical scope and a 10 to 12 week plan
| Module | Content | Weeks |
|---|---|---|
| Scoping | installed base, contracts, warranties, workflows | 1 |
| Tickets and scheduling | multichannel intake, dispatch, technician map | 2 to 4 |
| Technician app | offline, checklist, photos, signature, PDF report | 4 to 7 |
| Spare parts | warehouse and van stock, reservation on ticket, alerts | 7 to 9 |
| Customer portal | ticket tracking, per-machine history, invoices | 9 to 10 |
| Dashboard and acceptance | KPIs, field tests with 5 technicians, training | 11 to 12 |
The app ships in English, with an Arabic interface available if your technicians or customers need it, priced at scoping.
Mini case study
Illustrative example: Omar, after-sales director of a commercial refrigeration distributor in Al Quoz, manages 30 technicians and 1,200 jobs a month. He picks a scope at 5,000,000 FCFA, or 7,620 EUR, roughly 33,000 AED at 2026 rates (order of magnitude).
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- Revisits avoided: 11% of 1,200 = 132 revisits x 350 AED = 46,200 AED a month.
- Extra jobs billed: 5% of 1,200 = 60 x 500 AED = 30,000 AED a month.
- Total gain: about 76,200 AED a month once the tool is adopted.
Allowing three months of ramp-up at half speed, the investment is covered within about 2 months of go-live.
FAQ
Can technicians work offline in basements and cold rooms?
Yes, the app stores the ticket, checklist and photos on the phone, then syncs as soon as the network is back. An entry-level Android phone at around 600 AED is enough.
Can we track manufacturer warranties machine by machine?
Yes, each unit has a record with serial number, install date and warranty end. The ticket shows automatically whether the job is under warranty, under contract or billable.
Can invoices handle 5% UAE VAT?
Yes, the signed report generates a draft invoice with VAT, exported to your accounting software. Contract jobs are grouped into one monthly invoice per customer.
Do our customers need to install an app?
No, the customer portal is a secure web page opened from a link sent by SMS or email. Customers raise tickets and download their reports there.
What does the tool cost after delivery?
Plan cloud hosting at about 50 to 120 USD a month for 30 technicians, plus a Kolonell maintenance plan of 50, 110 or 180 EUR a month.
Let's scope your project. Share your job volume and installed base: we will price a scope between 6,100 and 10,670 EUR, deliverable in 10 to 12 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
