Utrecht · demonstration coverage
Water flows.Heat stays.We handle both.
KERN specifies and installs the wet trades as one system: supply, waste, heat and the rooms they serve.
Residential and light-commercial work across Utrecht and neighbouring towns. The map, hours and telephone number are placeholders.
- Typical supply
- 4.0 bar
- Heat circuit
- 35–55 °C
- Specified metals
- Cu / PE-Xc

Cu · 22 mm
Demonstration plant photo
Two trades, one drawing
Water or heat — pick the side you need first.
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Plumbing
Pressure, waste and the routes that keep a building quiet.
Leak tracing, risers, kitchens and drainage. We open finishes only where the drawing says the pipe must turn.
- Static pressure
- 3.5–4.5 bar
- Pipe metals
- Copper, stainless, PE-Xc
- Waste
- Gravity + pumped where needed
Core services
Three chapters. One installer.
Registrations
Replace these tiles with the schemes you actually hold.
None of the names below are claimed as KERN credentials. They are empty slots for a real installer.
KvK
Chamber of Commerce number
Slot
InstallQ
Technical installation scheme
Slot
F-gasses
Refrigerant handling
Slot
VCA
Safety on occupied sites
Slot
Completed work
Recent installations, photographed as they stand.
Before / after
Same camera position. Different week.
A bathroom in a 1930s Utrecht townhouse, shown as two plates. This pair is demonstration photography, not a single documented job.


Oudwijk stack — demonstration pair
Method
Inspect. Plan. Install. Support.
01
Inspect
We measure pressure, photograph routes and open only what the survey needs. No guesswork behind tiles.
02
Plan
A short specification: materials, plant, programme and the rooms that stay live while we work.
03
Install
First-fix, plant, second-fix. The site is left broom-clean at the end of each day — occupied houses included.
04
Support
Handover notes, filter dates and a named number for the first heating season. Not a generic inbox.
Clients
What people say after the van leaves.
Names and quotes are written for this template. Replace with real, consented reviews.
“They treated the plant room like architecture. The heat pump sits on a drawing, not on leftover wall.”
“A leak in a café kitchen, closed the same night. The stainless run is still the cleanest thing in the building.”
“The bathroom was handed over with a one-page spec, not a pile of brochures. Two winters later, nothing has moved.”
Service area
Based in Utrecht. Drawn to the jobs that fit the van.
Demonstration coverage: Utrecht, Nieuwegein, Houten, Zeist, De Bilt, IJsselstein and Amersfoort. Replace the list with the postcodes you actually accept.

Start a job
Send a work order. Or call if water is already on the floor.
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