La Cornue in Los Angeles
Since 1908, La Cornue has built ranges the way ateliers cut couture, by hand, to order, for the few. In Los Angeles they preside over kitchens in Bel Air, Beverly Hills and Hancock Park, and their owners rightly expect them to perform as beautifully as they look. Time still pays its visits. Burners lose their even flame, the vaulted oven of a Château drifts from temperature, doors settle out of alignment, and the electric elements of dual fuel models age like any other component.
Very few technicians should be allowed near a Château, and we hold ourselves to that standard. Onyx technicians bring 24 years of luxury range experience, factory training and genuine parts sourced for your specific commission. We move deliberately, protect the enamel and the brass, calibrate rather than approximate, and confirm every burner and oven before we leave. The $95 diagnostic is waived with your repair, and the work carries our 3 Year Onyx Warranty, parts and labor, in writing.
What we fix
La Cornue repairs we handle every week.
Château ranges
Vaulted oven temperature balance, burner regulation, gas valve service and door fit on made to order Château models.
CornuFé ranges
Igniter faults, thermostat drift, convection fan wear and element failures on CornuFé 90 and 110 models.
Burners and simmer plates
Uneven or yellow flame, slow ignition and burners that will not hold a low, steady simmer.
Ovens and controls
Calibration to true temperature, failed elements in dual fuel ovens, hinge adjustment and gasket renewal.
Why Onyx
The care your kitchen deserves.
Factory trained specialists
Vetted, uniformed technicians certified across every major luxury appliance brand.
Genuine OEM parts
Only genuine components for the brand we are servicing, sourced direct. No aftermarket substitutes.
White glove home protection
Floors, stone, and cabinetry are draped and protected before a single panel comes off.
$95 diagnostic, waived with your repair
One flat diagnostic visit. Go ahead with the repair and the diagnostic costs you nothing.
Concierge scheduling
One point of contact, arrival windows kept, and updates by text or call, whichever you prefer.
Licensed and insured
Bonded and fully insured on every visit. Documentation ready on request.
Questions, answered
Before you call.
Do you service La Cornue ranges?
Yes, both Château and CornuFé. Onyx Appliance Service is an independent company, not affiliated with or authorized by La Cornue. Our technicians are factory trained and have spent 24 years working on luxury ranges at this level.
Can you obtain genuine La Cornue parts?
Yes. We source genuine parts for your exact model. Some components for Château commissions are built to order in France, and we manage that sourcing and keep you informed on timing throughout.
What does La Cornue service cost?
The diagnostic visit is $95, waived with your repair. Given the nature of these ranges, we present a considered, complete quote before any work begins.
Is the work guaranteed?
It is. Every repair carries the 3 Year Onyx Warranty covering parts and labor, documented in writing.
The Onyx guarantee
The 3 Year Onyx Warranty, parts and labor, in writing.
A $95 diagnostic, waived with your repair, and 24 years on luxury appliances behind every visit.
Other brands we service
A different badge on the door?
See every brand we service across Los Angeles & Southern California.
Same day service · Los Angeles & Southern California
Your peace of mind is one call away.
One number, and it is handled, from diagnosis to a kitchen that simply works again.
$95 diagnostic, waived with your repair.