The verdict in three sentences
A website is living software: without updates, backups and monitoring, it degrades and becomes an entry point for attacks. In 2026, a maintenance contract costs 50-200 EUR/month or, as an annual flat fee, 12-18% of the site's build cost. That is little against the risk: an unmaintained site suffers on average one security incident every 8-14 months, and an emergency restore costs 3 to 10 times a full year of maintenance.
What maintenance covers in 2026
Not all maintenance plans are equal. A serious plan combines preventive (updates, backups) and corrective (fixes, support). Here are the market's standard tiers.
| Plan | Price/month (EUR) | Included | Fix time |
|---|---|---|---|
| Essential | 50 - 90 | Updates, backups, monitoring | 48 - 72 h |
| Standard | 90 - 140 | + hardened security, 2 h dev/month | 24 - 48 h |
| Premium | 140 - 200 | + 4 h dev/month, SLA, monthly report | < 24 h |
| Custom | 200 - 500+ | E-commerce/app, on-call | < 4 h |
The metric that matters is not the sticker price but the guaranteed fix time and the number of development hours included each month.
Monthly flat fee or percentage of the site
Two pricing logics coexist. The fixed fee gives budget certainty; the percentage scales with complexity. 2026 comparison across three project sizes.
| Site cost | Typical monthly fee | Annual % equivalent | Restore cost if unmaintained |
|---|---|---|---|
| 4,000 EUR (brochure) | 55 EUR/month | 16.5% | 1,500 - 3,000 EUR |
| 8,000 EUR (multi-page) | 100 EUR/month | 15% | 3,000 - 6,000 EUR |
| 20,000 EUR (corporate) | 250 EUR/month | 15% | 8,000 - 20,000 EUR |
| 50,000 EUR (e-commerce) | 600 EUR/month | 14.4% | 20,000 - 60,000 EUR |
In every case, a year of maintenance costs far less than a single emergency restore after a hack or prolonged outage.
Mini case study
Nadia is office manager of a 15-person architecture firm in Bordeaux. She hesitated over a 100 EUR/month maintenance plan (1,200 EUR/year) on their 8,000 EUR site. A peer without a contract got hacked: 6 days of downtime and 4,200 EUR to restore, plus lost quote requests. Nadia signs the Standard plan: over the year, two urgent fixes handled in under 24 h and zero interruption. Estimated real cost avoided: ≈ 4,200 EUR for 1,200 EUR invested, a ratio above 3 to 1, not counting preserved revenue.
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FAQ
How much does website maintenance cost in 2026?
Between 50 and 200 EUR/month depending on the plan, or 12-18% of the site cost per year. An e-commerce or app rises to 200-500 EUR/month.
What happens if I don't maintain my site?
On average one security incident every 8-14 months, plus outage and SEO-loss risks. Restoring costs 3 to 10 times a year of maintenance.
Flat fee or percentage: which to choose?
The monthly flat fee is clearer to budget; the percentage (12-18%/year) fits complex sites better. Both often land on a similar amount.
What fix time is reasonable?
Expect 48-72 h on an essential plan, under 24 h on premium, and under 4 h with on-call for e-commerce. The SLA must be written into the contract.
Does maintenance include enhancements?
Standard and Premium plans include 2-4 development hours per month. Beyond that, enhancements are billed as packages or at a day rate.
Let's scope your project. Tell us your site type (brochure, corporate, e-commerce) and desired service level: we will price a fitting maintenance plan. 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.
