We repair La Cornue appliances
La Cornue has built made-to-order range cookers outside Paris since 1908. They are rare anywhere, but south OC has more than a few, particularly in custom estates around San Juan Capistrano and Laguna Beach. Servicing them requires a technician who knows the equipment.
The Château and CornuFé hand-built range cookers with vaulted oven chambers, manufactured to order outside Paris in custom enamel colors and configurations.
What La Cornue builds, and what we service
- Château range cookers
- CornuFé ranges
- Vaulted convection and gas ovens
- Gas, induction and French-top cooktops
Problems we see most on La Cornue
- Oven will not hold heat The oven thermostat or the vaulted-door seal. La Cornue's vaulted oven cavity is more sensitive to seal compression loss than a standard oven, and even a minor gasket degradation produces a measurable temperature variance.
- Burner flame burning yellow An orifice sizing issue or an air-shutter adjustment, typically needed following a fuel-type conversion. La Cornue burners require precise orifice specifications matched to the fuel type.
- Brass trim losing its finish La Cornue trim is lacquered brass and responds well to the correct care routine. We advise on maintenance and protect trim and enamel on every service call.
A La Cornue appliance represents a meaningful investment in your home, and a single problem does not make it ready for replacement. Prostar Appliance Service carries the parts that fail most often on La Cornue equipment and assigns technicians who have worked specifically on this brand — not on appliances in general. That familiarity matters in a service call, especially on built-in and panel-ready installations where a wrong move damages more than just the machine.
What Makes La Cornue Worth Repairing
La Cornue is known for the Château and CornuFé hand-built range cookers with vaulted oven chambers, manufactured to order outside Paris in custom enamel colors and configurations That engineering is exactly why these appliances earn their price — and it is also why the repair has to be done by someone who understands the brand’s specific architecture. We see oven / ranges like yours regularly enough that we know which components carry the most wear and where to look first, without working through a generic diagnostic chart that was not written for this machine.
Common La Cornue Issues We Resolve
- Oven will not hold heat
- Burner flame burning yellow
- Brass trim losing its finish
Genuine Parts, With the Part Number on Your Invoice
We use genuine La Cornue parts wherever they are available, and the components that fail most on these machines are stocked on the van before we leave for your address. Most repairs finish in one visit. If a part for an older model has been discontinued, we tell you clearly rather than substituting a near-fit — and the part number goes on your invoice regardless, backed by a one-year warranty on the part and the labor combined.
What Helps Before the Technician Arrives
- Find the model number — on La Cornue appliances it is usually on the door frame, behind the lower toe kick, along a drawer rail, or on the rear panel
- Photograph the label if the print has faded — we read these every day and a photo saves time on the call
- Note any error codes currently showing and when the problem started
- For built-in or panel-ready units, make sure the cabinet panels can be accessed without moving surrounding furniture
One Price, Agreed Before We Open Anything
We diagnose the problem, confirm the part, and give you a single flat price covering parts and labor before any work begins. There are no hourly charges accumulating in the background and no additions to the invoice once the job is done. Payment is collected when the repair is finished and you are satisfied.
Book Your La Cornue Repair
In-home oven / range repair on La Cornue appliances across Irvine, Costa Mesa, Newport Beach and surrounding Orange County communities. Call 123-456-7890 or book online — same-day and next-day appointments are usually available.
To book a La Cornue repair call 123-456-7890
We provide some other appliance services like: Oven & Range Repair

Book your repair
Select a day and two-hour window that works for you. We confirm by phone or text shortly after.