Does Sub-Zero make ovens or cooktops?

No. Sub-Zero builds refrigeration and nothing else — built-in refrigerators and freezers, integrated columns, undercounter units, drawers, wine storage and ice makers. That is why the list below is the whole of what we take on rather than a selection, and why no cooking appliance appears anywhere on this site. Heating and air conditioning sit outside it as well: no furnace, heat pump, air handler or duct run is serviced here.

What happens on the first visit?

One flat fee to come out, test the system and tell you what is wrong. It is credited toward the repair if you go ahead with the work. The model and serial are read off the plate inside the cabinet while we are there, because within one product family the parts differ between production runs. You get a written estimate before any part is ordered or any labour begins.

Are the parts genuine, and what is covered afterwards?

Genuine OEM parts throughout. 90 days on labour, 365 days on parts. Pattern parts are not fitted to sealed systems or to controls: a part that does not match the original specification is a repair that comes back, and coming back twice for the same fault costs more than the right part did.

Repairs

What we work on

One manufacturer, one product family. Sub-Zero makes refrigeration and nothing else, so this list is the whole of it rather than a selection.

The full height of an open stainless built-in refrigerator seen from the side: lit glass shelves above, two deep freezer drawers pulled out below, and the cabinet run it is fitted into. — Every cabinet we take on is refrigeration

If your symptom is not named here, describe it on the phone in your own words. You do not need the right vocabulary for it, and a plain account of what the cabinet is doing is worth more than a guess at the part.

Every visit starts the same way: a flat $80 to come out, test the system and tell you what is wrong, credited toward the repair if you go ahead. 90 days on labour, 365 days on parts. Genuine OEM parts throughout.

What it costs

What does each of these cost to put right?

The whole book, because this page is the whole list. A repair page narrows it to the bands that fit its own subject.

Parts and labour for every repair we take on, plus the diagnostic that comes first.
What is being put right	Parts and labour
Diagnostic visit	$80 flat, credited toward the repair
Door gasket or seal replacement	$240–$620 parts and labour, after the diagnostic
Evaporator or condenser fan motor	$250–$550 parts and labour, after the diagnostic
Defrost heater, thermostat or sensor	$250–$640 parts and labour, after the diagnostic
Ice maker, water valve or supply line	$250–$650 parts and labour, after the diagnostic
Electronic control board	$440–$820 parts and labour, after the diagnostic
Compressor or sealed-system repair	$940–$2,290 parts and labour, after the diagnostic

Every line above is a range because the firm figure is written down after the diagnosis and not before it. The $80 covers coming out, testing the system and telling you what is wrong, and it comes off the repair the moment you say go ahead. The whole table, and what happens when a repair is not worth doing, is on the what it costs page.

Sub-Zero built-in refrigerator running warm on one side

A cabinet running warm on one side, frost creeping across the freezer wall, or a unit that runs and runs without ever settling down.

One compartment is warm, the other is fine
Frost builds on the back wall of the freezer
The unit runs constantly and never cycles off

Sub-Zero integrated column: door out of true, drawers icing

Panel-ready refrigerator and freezer columns that sit flush with the cabinetry until something moves, ices up or stops responding.

The door no longer sits flush with the cabinet panel
A freezer column ices up around the drawers
The touch panel has stopped responding

Sub-Zero undercounter and drawers running warm in the afternoon

The small units in islands, bars and outdoor kitchens, where heat, tight clearance and a long run from the main cabinet make life hard.

The undercounter unit runs warm in the afternoon
A drawer freezes what should only be chilled
The compartment sweats inside

Sub-Zero wine storage: zones drifting apart, humidity falling

Dual-zone units where the two compartments have stopped agreeing, humidity has drifted, or the fan has become audible from across the room.

The two zones no longer hold different temperatures
One zone sits several degrees above its setting
Corks are drying out

Sub-Zero sealed system: running constantly, still drifting warm

The refrigerant circuit itself — compressor, condenser, evaporator, drier and charge — and how to tell it apart from the cheaper faults that imitate it.

The cabinet runs all the time and still drifts warm
It has stopped getting cold at all
The compressor starts and stops after a few seconds

Sub-Zero ice maker filling short: hollow cubes, no harvest

Thin cubes, hollow cubes, a mould that fills but never harvests, and production that falls away through the summer.

It has stopped making ice altogether
Cubes come out hollow or thin
The mould fills with water but no ice comes out

Questions we are asked

What people ask before they call

Does Sub-Zero make ovens or cooktops?: No. Sub-Zero builds refrigeration and nothing else — built-in refrigerators and freezers, integrated columns, undercounter units, drawers, wine storage and ice makers. That is why the list below is the whole of what we take on rather than a selection, and why no cooking appliance appears anywhere on this site. Heating and air conditioning sit outside it as well: no furnace, heat pump, air handler or duct run is serviced here.
What happens on the first visit?: One flat fee to come out, test the system and tell you what is wrong. It is credited toward the repair if you go ahead with the work. The model and serial are read off the plate inside the cabinet while we are there, because within one product family the parts differ between production runs. You get a written estimate before any part is ordered or any labour begins.
Are the parts genuine, and what is covered afterwards?: Genuine OEM parts throughout. 90 days on labour, 365 days on parts. Pattern parts are not fitted to sealed systems or to controls: a part that does not match the original specification is a repair that comes back, and coming back twice for the same fault costs more than the right part did.

Customer reviews

Owners who called about one of these

Three of the pool, chosen by this page and printed in full.

4.64.6 out of 5 across all 64 reviews published on this site

4 out of 5
The bar unit on the porch side struggled all summer and was perfectly happy by November. He measured the clearance around it and showed me the warm exhaust it had been breathing back in.
Ignatius H.February 2026
5 out of 5
The wine unit had a fan screaming under the canopy pollen it had swallowed all spring. He stripped and cleaned the housing, replaced the motor, and showed me a filter I had no idea the cabinet had.
Everett J.May 2026
4 out of 5
The mould filled and then simply sat there. He showed me the harvest cycle failing, ordered the part against the plate rather than from a photograph, and came back when he said he would.
Clementine H.July 2026

A wider selection, three-star entries first, is on the reviews page. All 64 are published across this site, beside the repair or the street each one came from.