Price calculator
Four product groups, a 3D preview, a cart and a complete dossier by email - in nine languages, with its own URL per language.
Den HaagBinnenhof · Ridderzaal
drag ◀ ▶ or scroll - travel past the cities
Case · taken over & expanded
A window onto
all of Zuid-Holland.
Deze site bestond al toen ik hem in beheer kreeg. Sindsdien heb ik hem uitgebouwd: tientallen pagina's erbij, negen talen, een complete prijscalculator - en ik houd hem dagelijks snel, actueel en vindbaar.
d-kozijnen.nl →Featured: the calculator
Work out an indicative price yourself.
Note: this is a heavily simplified version of the calculator I built for D-Kozijnen. Here you only get a rough indication. The full calculator - with real product data, colours, door models, nine languages and a complete quotation dossier - lives on their own site.
Area-
Per unit-
Estimated total-
An indication, not a quote. The real calculator is on d-kozijnen.nl.
Calculate it for real →What I added
From an existing site into a sales machine.
21 city pages
Each city with its own copy, local context and FAQ. No copied templates, so they rank independently of each other.
Nine languages
Translated URLs, hreflang and one consistent company entity in the structured data - instead of three clashing systems.
Speed & engineering
Images to WebP, caching and minification, custom mu-plugins instead of a pile of heavy extensions.
Reach
Every city its own door.
Den HaagRotterdamDelftLeidenZoetermeerGoudaWassenaarKatwijkNaaldwijkRijswijkVoorburg+10 more
I build and I maintain
I do not hand over and disappear.
What is listed below I do every month - that is why these projects are still running.
Hosting & deploysPushing new versions live without downtime - with a rollback plan.
Updates & securityCore, plugins and dependencies kept current; nothing sits still for years.
SEO & findabilityStructure, speed, sitemaps and multilingual setup that keep adding up.
BackupsAutomatic, tested, and genuinely restorable when it matters.
MonitoringI notice before the client calls - logs, uptime, error reports.
Further developmentNew features as the business grows. A site is not an end point.