The verdict in three sentences
A maintenance retainer mainly pays for what you do not see: backups, security patches and availability when an incident hits. An EUR 80/month quote and an EUR 300/month one do not cover the same risks: the first protects, the second guarantees an intervention time. Read a contract by its inclusions and SLA, not by its monthly price.
What a maintenance retainer actually covers
Serious maintenance is not just updates. It includes security, reversibility and a quantified reactivity guarantee.
| Service | Basic | Standard | Premium |
|---|---|---|---|
| Indicative 2026 price | EUR 80-120/mo | EUR 130-200/mo | EUR 220-300/mo |
| CMS + plugin updates | quarterly | monthly | weekly |
| Backups | weekly | daily | daily + off-site |
| Development hours included | 0 | 1-2 h/mo | 3-5 h/mo |
| Response SLA | 72 h | 24 h | 4 business h |
| Uptime monitoring | no | yes | yes + 24/7 alerts |
| Monthly report | no | yes | yes, detailed |
No-commitment or annual: the real calculation
The commitment mode changes the price and intervention priority. Annual costs less per month but ties you in; no-commitment reassures but comes at a premium.
| Criterion | No commitment | Annual |
|---|---|---|
| Monthly rate | +15 to 25% | reference rate |
| Intervention priority | standard | prioritised |
| Rollover hours | no | often yes |
| Notice period | 30 days | 60-90 days |
| Ideal for | secondary site, trial | strategic site, lead gen |
Mini case study
Karim, manager of a services SME in Dublin, receives a maintenance quote at EUR 150/month and hesitates against a competing offer at EUR 90/month. He compares inclusions: the EUR 90 offer includes neither an SLA, nor daily backups, nor development hours. His site generates 25 quote requests a month; a 48-hour outage costs him about 4 requests, i.e. EUR 1,600 of lost pipeline. The 24-hour SLA at EUR 150/month removes that risk. Over the year he pays EUR 720 more than the low-cost offer, to cover an incident risk worth several thousand euros. He signs the standard contract.
FAQ
Need a professional website?
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What happens if I take no maintenance at all?
The site keeps running, but without security updates or backups it becomes vulnerable: hacking, failure after a server update, data loss. In 2026, an unmaintained site has a real probability of a major incident over 12-18 months. Emergency repair costs EUR 500-2,000.
What is the difference between hosting and maintenance?
Hosting (EUR 25-75/month) stores the files; maintenance protects and evolves the site. Some contracts bundle them, others bill them separately. Always check whether hosting is included in the quoted retainer price.
What is a response SLA really for?
It guarantees a maximum time to start handling an incident: 72 h on basic, 4 business hours on premium. For a lead-generating site, a short SLA is insurance: a few hours of downtime can cost more than the annual price gap.
Are unused development hours lost?
It depends on the contract. In 2026, good annual contracts allow rolling over 1 to 3 months of unused hours. Insist on this clause if you evolve in bursts rather than steadily.
Can I switch maintenance provider?
Yes, provided you own the access, code and backups. Check the reversibility clause: a serious provider hands everything over within 15 days. Without that clause you are captive.
Let's scope your project. Tell us your site's role (brochure, lead gen), your outage tolerance and your monthly budget, and we will propose the right maintenance tier, neither under-sized nor over-sold. 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.
