Sub-Zero · Mercer Island

Refrigerator Repair

Built-in and integrated Sub-Zero refrigerators: sealed system, evaporator and defrost circuit, control boards, door seals and the panel-ready cabinetry they sit in.

Hands holding a meter probe and a multimeter at the compressor beneath a stainless drawer unit, its base panel removed and pliers on a towel

Undercounter refrigerators and drawers

Not every Sub-Zero refrigerator on the island is a full-height column. Bars, pantries and family rooms remodeled over the last twenty years hold undercounter refrigerators and refrigerator drawers, and they fail differently: the condenser sits behind the kickplate at floor level, and in a tight cabinet it clogs long before anything else wears out. The Under the Counter notes cover those units one fault at a time.

What owners describe on the phone

If one of these sounds like your unit, it is the right page; if none does, describe it in your own words when you call.

  • 01 Fresh food side has crept up to around 50°F while the freezer is still rock hard
  • 02 Compressor runs more or less constantly and the cabinet never quite reaches the set point
  • 03 Water pooling under the crisper drawers, or a sheet of ice forming on the rear wall
  • 04 Door alarm keeps sounding even though the door is shut and the gasket looks intact

What it comes to

The bands refrigerator work usually falls into

The $89 visit pays for the trip over and a full diagnosis, and it is taken off the repair bill when you say yes to the work.

A band is a range because one fault turns up at different sizes on different cabinets. Yours gets a single price once the fault is found, before a part is fitted or ordered; the list below is only so you know roughly where you stand before the phone call.

Door gasket or seal replacement
$290–$690
Evaporator or condenser fan motor
$310–$730
Defrost heater, thermostat or sensor
$270–$610
Electronic control board
$440–$1,000
Compressor or sealed-system repair
$1,330–$3,010

How an island visit runs

  1. On the phone

    Model, serial number, what the display reads and how long it has read it. On an island those answers decide what crosses I-90 with us, so we ask them properly rather than quickly.

  2. At the door

    Floor protected before anything moves. A panel-ready unit is only drawn out of its cabinetry once the surround has been looked at and covered.

  3. The diagnosis

    Each zone probed against its display, the condenser and fans checked, the sealed system read on gauges when the symptom points there. The $89 visit pays for all of it.

  4. A price, then the repair

    You hear the repair price once the fault is found and before a part is fitted or ordered. If the unit is not worth repairing, that is said plainly at the same point.

  5. Before we leave

    The unit is left running down toward its set point and the readings are shown to you. Panels and reveals go back where they were.

In their words

What the island says

5.0 / 5555 reviews


  • Second opinion after another shop quoted a whole sealed system. It was a defrost heater and a thermistor — a tenth of the price, and steady for eight months now.

    Peter H. · First Hill · Aug 2025

  • Door alarm going all evening with the door plainly shut. Living this near the water, I blamed the damp. The gasket had lost its magnet strip along the hinge edge, so it looked perfect and sealed nothing.

    Hana T. · Mercerwood · Feb 2026

  • Quiet, tidy, and the number he gave at the door was the number on the invoice. He showed me the temperature log before leaving so I could see it had come back down.

    Colleen A. · East Seattle · Mar 2026

Mercer Island, WA

Refrigerator trouble on Mercer Island?

Ring with the model number and what the unit is doing, or pick a window online. The $89 visit is taken off an approved repair, and you hear the repair price before any part goes in.

(206) 208-3377 Book online instead

Island visits 8:00 am – 8:00 pm, seven days · the line rings through 24/7