The verdict in three sentences
For a water utility serving 85,000 accounts, the website is first a call-deflection tool, not a brochure. Three building blocks deliver most of the gain: online self-service (connections, meter readings, direct debit set-up), a live outage map and WCAG 2.1 AA accessibility so everyone can actually use those services. A well-scoped project ships in 12 to 16 weeks and can target a 30 % drop in inbound calls within the first year.
Why customers still call, and what the website can absorb
A utility of this size typically receives, as a 2026 ballpark, 0.6 to 0.9 calls per account per year, or 5,000 to 6,500 calls a month. Each handled call costs 5 to 8 EUR in agent time in Ireland. The breakdown shows where the site can act.
| Call reason | Share of calls | Online answer | Target reduction |
|---|---|---|---|
| Outage or low pressure | 22 % | Live incident map, SMS alerts | 50 % |
| New connection or move | 18 % | Form with uploads and tracking | 60 % |
| Billing question | 20 % | Customer portal, tariff explainer | 25 % |
| Direct debit, payment plan | 12 % | Signed online request | 60 % |
| Meter reading | 10 % | Self-reading with meter photo | 50 % |
| Water quality, boil notices | 8 % | Area page with test results and notices | 40 % |
| Other | 10 % | Structured FAQ | 10 % |
Weighted, the achievable reduction is around 38 %. A 30 % target is therefore prudent, provided the journeys are genuinely simple on mobile, where 65 to 75 % of visits happen. In Ireland, boil water notices drive huge call spikes, so a clear notice banner per area is a priority.
Public-sector requirements
A public water body faces obligations a private firm does not. They shape supplier choice and timeline.
| Requirement | What it implies | Watch-out |
|---|---|---|
| EU Web Accessibility Directive, WCAG 2.1 AA | Audit, accessibility statement, monitoring | Reviewed by the National Disability Authority |
| EU data residency | Hosting in the EU, no transfers outside | Check sub-processors in contracts |
| GDPR | Records, retention periods, DPO | Consumption data is personal data |
| Public procurement | OGP frameworks or open tender above thresholds | Allow 6 to 10 weeks of procedure |
| Billing system integration | API or export from the CIS (SAP IS-U and similar) | Test portal data flows early |
| Irish language | Irish versions under the Official Languages Act where applicable | Plan translation time |
On the Irish market, an institutional site of this type with a customer portal costs, as a 2026 ballpark, 50,000 to 150,000 EUR depending on billing integration. At Kolonell, institutional websites are always quoted on request, after a scoping workshop on which journeys to digitise and which data flows to connect.
A typical 12 to 16 week timeline
- Weeks 1 to 3: discovery, 12-month call reason analysis, workshops with customer service.
- Weeks 4 to 6: sitemap, accessible mockups tested with customers, including visually impaired users.
- Weeks 7 to 12: build, outage map linked to the operations system, self-service forms.
- Weeks 13 to 16: WCAG audit, QA, staff training, phased go-live.
Procurement time comes on top. Many utilities launch the tender in spring for a go-live before the winter peak in burst pipes.
Mini case study
Siobhán, head of customer operations at a water utility in the Dublin region, manages 85,000 accounts and 6,000 calls a month handled by 7 agents.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
- Current cost: 6,000 calls x 6.50 EUR = 39,000 EUR per month, or 468,000 EUR per year.
- 30 % reduction target: 1,800 calls avoided per month, worth 11,700 EUR per month and 140,400 EUR per year.
- Indirect gain: 2 agents redeployed to complex complaints and arrears, which concern about 4 % of bills.
Even at the top of the market range, payback comes in under 12 months. The fastest lever is the outage map: during a trunk main burst, it alone can prevent 400 to 800 calls in a single day.
FAQ
What call reduction can a new website really deliver?
A 25 to 40 % reduction is realistic as a 2026 ballpark if self-service covers the top 5 call reasons. Without a customer portal or outage map, gains rarely exceed 10 %.
Is WCAG compliance mandatory for a public water body?
Yes, public sector bodies fall under the EU Web Accessibility Directive at WCAG 2.1 AA level. They must publish an accessibility statement and are monitored periodically.
Where should customer data be hosted?
Prefer EU hosting with no transfers outside the Union. Consumption data is personal and must appear in the GDPR records with a defined retention period, often 6 years after account closure.
How much does an institutional site with a customer portal cost?
The Irish market ranges from 50,000 to 150,000 EUR depending on integrations. At Kolonell, institutional websites are quoted on request after scoping.
Do we need a mobile app as well?
Rarely: a fast responsive site covers 95 % of needs. SMS or email outage alerts work better than an app installed by fewer than 5 % of customers.
Let's scope your project. We will work with your customer service team on which journeys to digitise, the outage map and WCAG compliance, on a 12 to 16 week schedule. 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.
