Pricing
Transparent pricing,
no surprises
One setup fee. One monthly amount. No annual contract. Use the calculator to build your package.
Price calculator
Calculate your package
Setup fee €699 → €449
1 of 10 early adopter spots taken
Type
Add-ons (monthly)
Extra pages per month
+4 pages/mo per unit · €50/mo
Add-ons (one-time)
Extra pages
€50 per page
Extra blog articles
€75 per article
Break-even time
Your average order value?
At an order value of €5.000, 1 extra client are enough to recover the full annual cost of €2.237.
No obligations · Cancel anytime
Essential
€79/mo- 5 fully built pages (home, about, services, contact, FAQ)
- JSON-LD schema markup (Organization, Service, FAQPage, LocalBusiness)
- llms.txt — direct instructions for ChatGPT, Claude and Perplexity
- Sitemap, robots.txt, hreflang for NL and BE
- Vercel edge hosting (LCP under 1s)
- 4 new AI-optimized pages per month
- Every new page manually submitted to Google for immediate indexing
- SSL certificate included
- Monthly cancellable — no annual contract
Pro
Popular- Everything from Essential
- AI chatbot trained on your business, pricing and service area
- 24/7 lead qualification and quote requests
- Answers customer questions outside business hours
- Monthly chatbot updates when your services change
Add-ons (both plans)
Sieng vs. an agency vs. WordPress yourself
An honest comparison — because transparency is why we have no hidden costs.
| Sieng | Agency | WordPress yourself | |
|---|---|---|---|
| Setup costs | €449 | €2,500–€8,000 | €0–€500 + hours |
| Monthly costs | €79 or €149/mo | €200–€500/mo | €20–€80/mo |
| LCP load time | < 1s | 1–3s | 2–4s |
| JSON-LD schema (AEO) | ✓ fully custom | varies | ✗ via plugins (limited) |
| llms.txt for AI crawlers | ✓ automatic | ✗ rarely | ✗ not standard |
| 4 new pages/month | ✓ included | € extra | ✗ do it yourself |
| Google indexing per new page | ✓ guaranteed | ✗ manual | ✗ no guarantee |
| AI chatbot | ✓ Pro plan (€149) | € extra | ✗ plugin required |
| Contract | Monthly cancellable | Often 1–2 years | Monthly cancellable |
Pricing questions
Is the €449 setup fee really all-inclusive?
Yes. The €449 covers building the full 5-page website, all AEO configuration (schema, llms.txt, sitemap) and going live on Vercel. The Pro plan includes AI chatbot setup too. After that, you only pay the monthly fee.
What is the difference between Essential (€79) and Pro (€149)?
Essential gives you everything to get found by ChatGPT and Google: hosting, 4 new pages per month and full AEO setup. Pro adds an AI chatbot that answers customer questions 24/7, qualifies leads and handles quote requests — including nights and weekends.
Can I upgrade from Essential to Pro later?
Yes, at any time. You can switch to the Pro plan whenever you want. The chatbot will be set up and trained on your business within a week.
What exactly are the 4 new pages per month?
Every month we write and publish 4 new pages on your site: about current subsidies, comparisons, regulations or local relevance. These pages get found by ChatGPT and Google. You can order more pages via the calculator.
Can I cancel at any time?
Yes, monthly cancellable with no penalties. Your site and all content remain yours. Only the monthly maintenance and new pages stop.
Do you work with businesses outside the installer industry?
Currently we focus exclusively on solar panel, heat pump, and insulation installers in NL and BE. This focus means we know the subsidies, customer questions, and content that works — delivering better results than a generalist.
Ready to get started?
Book a free introductory call
30 minutes, no obligations. We'll discuss your installation business, service area and what an AI website can concretely deliver.
Book a free call →Setup fee €449 · Service €79/month · Cancel anytime