A. Visser
Lead installer
Placeholder. Replace with the person who actually signs the drawing.
05 · Studio
KERN is written as a compact Utrecht workshop: a lead installer, a heating engineer, and a plumber who still files as-built notes. The people, dates and workshop address are placeholders.


We take plumbing and heating as one trade because the building does. A heat pump that ignores the pipe routes, or a bathroom that ignores the stack, is two invoices and one unhappy winter.
A site visit with a camera, a pressure gauge and the existing drawings if they exist.
A short specification — materials, plant, programme — before a price is fixed.
Installation in occupied buildings with daily close-down.
Handover notes a non-engineer can keep in a kitchen drawer.
Lead installer
Placeholder. Replace with the person who actually signs the drawing.
Heating engineer
Placeholder. Replace with the person who commissions plant.
Plumber
Placeholder. Replace with the person who owns first-fix.
Workshop registered — replace with your founding year.
Heating added as a named chapter, not an afterthought.
Heat-pump work becomes a regular drawing, not a special.
This template. Your dates go here.

Start a job
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