
Engineering-led service
High-End Appliance Repair
Commercial Equipment Repair
Industrial Diagnostics
Expert repair & diagnostics. Preventive maintenance available.
San Jose, Los Gatos and the Bay Area.
Specialized service
The right expertise for your equipment.
From integrated home appliances to commercial kitchens and technical systems. Choose the service that fits your needs.

Residential / High-End
Diagnostics and repair for high-end appliances, built-in refrigeration and premium home equipment.
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Commercial Equipment
Equipment diagnostics and repair for restaurants, bakeries, hotels and commercial kitchens.
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Refrigeration & HVAC
Commercial refrigeration repair, temperature-system troubleshooting and selected HVAC diagnostics.
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Facilities / Property
Equipment repairs, service work orders and optional maintenance for managed properties.
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Industrial & Automation
Fault diagnostics and component-level repairs for selected machinery, drives and control systems.
Explore serviceAbout KONGRA
Precision.
Experience. Results.
KONGRA diagnoses and repairs high-end appliances, commercial kitchens, refrigeration and selected industrial equipment. We inspect the equipment, explain our findings and agree on the repair scope before work begins. Preventive maintenance is available.
Our approachDiagnostics before parts replacement
Inspection and measurement guide the proposed repair.
Clear scope. Written estimate.
Review the recommended work and price before authorizing repair.
California registration A51625
Verify Appliance Service Dealer registrationLocal service. Business-ready documentation.
W9 and COI available upon request.
Real KONGRA work
Equipment we know from the field.
Service photographs and documented case studies.

Sub-Zero Built-In Refrigeration
KONGRA field photograph · built-in refrigeration service
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Sveba-Dahlen C152
Documented rack-oven inspection and service context
Read the field case
CMA Commercial Dishwasher
KONGRA field photograph · commercial warewashing equipment
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Miele Built-In Refrigerator
KONGRA field photograph · equipment inspection
Explore Miele serviceBefore your visit
Send the model. Show us the problem.
Send the brand, model, symptoms and your city. You can email equipment and model-label photos separately when useful.
Have a photo? Email it with your equipment model and request details to help us prepare.
How it works
A clear path from diagnosis to repair.
- 01
Book
Choose your service, or send the model and symptoms first.
- 02
Diagnose
We inspect the equipment and document the findings.
- 03
Approve
Review the written repair scope and price before work begins.
- 04
Repair
We carry out the approved work and document the service.
Explore services
Find the right service path.
Find repair and diagnostic services, maintenance options and support for your property or business.
Before you book
Which premium brands do you service?+
Selected Sub-Zero, Wolf, Miele, Thermador, Viking, COVE, Hestan appliances, plus other premium residential equipment.
Can I share equipment photos?+
Yes. Send your model and symptoms using Request Service. You can email equipment or model-label photos to KONGRA as needed.
Do you work with businesses and property managers?+
Yes. KONGRA handles commercial equipment diagnostics, approved repairs and work orders, with optional planned maintenance. Include access and approval requirements; W9 and COI are available upon request.
Schedule service
Ready when you are.
Book a visit or send the model, symptoms and photos first.