Contact
Book a Sub-Zero Diagnostic
Ringing is quickest, and the line is open 24/7. The call back gives you an arrival window that fits the sailings and the rest of the day's run.
- Ring
- (206) 785-2960, open 24/7
- At the unit
- Island visits run 8:00 am – 8:00 pm, seven days
- First visit
- $89 for the trip and the diagnosis, deducted when you go ahead
- Districts
- Winslow · Rolling Bay · Lynwood Center · Port Madison, and the smaller places around each
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The model number
It is on the product rating plate, with the serial number beside it; the use and care guide shows where the plate sits on your model. It tells us which family of faults the unit belongs to before anyone sets off.
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What the temperatures actually are
A glass of water left in the compartment for an hour with a kitchen thermometer in it beats the door display every time.
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When it started, and what changed
A filter change, a power cut, a door left ajar overnight — the trigger usually narrows the fault more than the symptom does.
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Where you are on the island
District and rough location. It decides where you land in the day’s run and how early we can get to you.
From the island
What the callbacks sound like
4.9 / 51,057 reviews
Second kitchen by the water, and everything in the undercounter drawer had welded into one lump I was chipping at with a spoon. Dead drain heater. Sorted in a single visit, and he carried the ice out.
Sylvie O.Pleasant Beach · Oct 2025 Older cabinetry down at Point White, and the freezer alarm would not clear whatever we did with the panel. A thermistor was reporting nonsense rather than a real fault. Replaced, and we watched a full cycle.
Orla M.Point White · Apr 2026 The high-temperature alarm sounded two nights running and cleared itself by breakfast, so of course it behaved when he arrived. He read the defrost heater anyway and found it open. New heater, run back down to spec.
Bram H.Winslow · Mar 2026
Service request
Take a slot on the booking page
Booking goes straight to the person who will do the work. If the answer is something you can check yourself first, we will say so when we ring back to confirm the window.
Call (206) 785-2960- Ringing
- (206) 785-2960 is picked up 24/7
- Island days
- Out on calls 8:00 am – 8:00 pm, seven days, round every district
- First visit
- $89 for the trip and the diagnosis — deducted once you say yes to the repair
- Districts
- Winslow · Rolling Bay · Lynwood Center · Port Madison
Online booking
Take a slot on the island run
- Choose a day and a time of day that works for the house.
- Add the model number from the unit's rating plate and a sentence on what the unit is doing.
- We ring back with an arrival window that fits the sailings.
Prefer to describe it out loud first? Ring (206) 785-2960 — a good description on the phone is half of an island diagnosis.
What the $89 buys: the crossing, readings taken over a cycle, and a diagnosis you can act on. Say yes to the repair and that $89 is taken off its price; the price itself is written down for you before a panel comes off.