Sub-Zero built-ins are what we do
Sub-Zero refrigeration is engineered to be serviced and to last for decades — which is exactly why a specialist matters. We focus on the dual-refrigeration, sealed-system and integrated designs that define the brand, rather than seeing one built-in now and then between dishwashers and dryers. That focus shows up in faster diagnoses, the right OEM parts on the van, and careful handling of the panel-ready, flush installations common in Sunnyvale's remodel-era kitchens.
Whether you have a tall BI column, a classic over-and-under built-in, a fully integrated panel-ready unit, a wine column or under-counter drawers, we diagnose the actual cause — airflow, defrost, sensors, control or sealed system — and quote it in writing before any work begins.
Sub-Zero model families we service
| Model family | What it is | Common service |
|---|---|---|
| Built-In (BI) columns | Tall all-fridge / all-freezer columns | Gaskets, sensors, ice maker, control |
| Classic built-in (over/under) | The original over-and-under built-in | Condenser, defrost, sealed system |
| Designer / integrated | Fully integrated, panel-ready | Cabinet-safe pull-out, hinges, control |
| PRO series | Pro-style stainless built-ins | Airflow, sealed system, electronics |
| Undercounter & drawers | Bar, beverage and drawer modules | Sensors, fans, water lines |
| Wine storage | Single- and dual-zone wine columns | Temperature, humidity, sensors |
Have your model and serial ready — see the model & serial lookup link below.
Not sure what you have? Our model & serial lookup shows where to find the tag and why it determines the right parts.
The Sub-Zero problems we fix most in Sunnyvale
- Running warm or split temperature — one side warm, alarms or constant cycling. See warm fridge & split temperature.
- No cooling at all — a sudden loss of cold. See Sub-Zero not cooling.
- Ice maker & water line — no ice, low fill, leaks or freeze-ups. See ice maker & water line.
- Sealed system & compressor — EC codes and refrigerant faults. See sealed system & compressor.
- Heavy frost & defrost faults — frost lines and defrost-circuit issues.
- Error / service codes — including EC 50 and the full error-code hub.
Sub-Zero repair pricing in Sunnyvale
| Repair | Draft range | Time |
|---|---|---|
| Diagnostic / service visit | $89 | 45–90 min |
| Door gasket / frost line | $400–$900 | 1–3 h |
| Ice maker / water line | $275–$850 | 1–3 h |
| Control board / sensor | $350–$1,250 | 1–4 h |
| Compressor / sealed system | $1,450–$3,600 | 2–6 h + parts |
Draft ranges for planning only; final quote depends on model, parts, access and on-site diagnosis.
The $89 service call is waived when you book the repair. Full context on the Sub-Zero repair pricing page.