Clay County · Sub-Zero only
Built-in refrigeration, diagnosed in a fixed order.
A warm compartment has a short list of causes, and they are not equally expensive to investigate. We measure both compartments, assess heat rejection at the condenser and check every door seal before anyone starts talking about a control board or a sealed system. An independent Sub-Zero refrigeration shop, working Clay County only.
Call (904) 442-8210 Book online See what we repair
- Measure, do not read
Both compartments get a probe of our own before anything is opened. A panel reports what its sensor believes, and the gap between that number and the cabinet is often the whole fault.
- Heat rejection
The upper grille comes off and the condenser gets assessed. Every measurement taken afterwards means something different if the unit cannot dump heat, so nothing is judged before this.
- Air and water paths
Evaporator frost pattern, fan operation, the drain line and where melt water is collecting. The location of the water usually names the failed component without a meter.
- Doors, panels and level
Paper test around the whole seal, hinge condition, the hang of a cabinet-shop panel, and whether the cabinet is still plumb. The cheapest fault on the machine, and the one that makes every other symptom worse.
- Supply, sensors, then the control
Voltage at the outlet, the circuit it shares, harness connectors and thermistor readings — all of it before a board is condemned. The expensive part is the easiest one to blame.
- Sealed system last
Leaks, restrictions and compressors are real and we repair them, but only once the five steps above are clear. Refrigerant work is done by EPA Section 608 certified technicians.
The order is not habit. Each step changes what the next one means, and the cheap, reversible checks come first so that nobody pays for a diagnosis the previous step would have made unnecessary. No part is ordered until the sequence has produced an answer and you have approved a written figure.
The four we find most
What actually kills built-in refrigeration here
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Condenser fouling
Pet hair and household dust mat across a condenser that was built to breathe. The compartment drifts warm, and the ice maker is the first thing you notice.
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Defrost and drain failures
Water that should leave the cabinet refreezes where it sits. The tell is a solid slab in the ice bin instead of loose cubes — and it gets blamed on the ice maker.
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Boards after a storm
Northeast Florida takes a lot of thunderstorm days. It is the surge on restore that does it, and a half-surviving board behaves erratically rather than dying.
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Door gaskets
The cheapest fault of the four, the fastest to confirm, and the one that quietly makes every other symptom on this list worse.
Repairs
Symptoms we are called out for
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Ice maker that has stopped harvesting
The most common call we take, and the one most often misdiagnosed. An ice maker that will not harvest is frequently reporting a fault somewhere else in the cabinet.
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Built-in drifting warm, one side or both
One side warm and the other fine is a different fault from both sides warm. We read the split first, because it narrows the work by half.
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Frost on the walls, water under the crisper
Water that should leave the cabinet is staying in it and freezing where it sits. The evidence is usually visible before anything is disassembled.
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Control faults after the surge on restore
The strike is not the problem. The surge when power comes back is, and a board that half-survives it behaves worse than one that dies outright.
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Door seals, hinges and panel hang
A door that is not sealing makes every other symptom worse and costs a fraction of what the symptoms get blamed on.
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Wine storage drifting off its zone
A wine unit fails silently. There is no spoiled milk to warn you, so the first evidence is often in the glass rather than on the display.
Where we go
Clay County and the edges of it
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Orange Park, three eras of housing in one town
Clay County, not Duval. Older river streets, 1960s ranch stock and new panel-ready kitchens all fail differently, and the difference shows up in the work.
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Pace Island, a thirty-year installed base
Gated, on the water, and built largely in one wave — which means a whole neighbourhood of Sub-Zero built-ins reaching the same age at the same time.
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Eagle Harbor, where the doors carry panels
Thousands of homes finished inside a short window, which means whole streets of built-ins reaching the same failure points in the same few years.
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Oakleaf Plantation, young kitchens either side of the line
The newest housing stock in the county, so age-related wear is rarer here and installation, dust and power quality account for most of what we are called out for.
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Hibernia Plantation, and the long drive south
The far end of our patch, where the drive is longer and the questions on the phone do more work, because a second visit costs everybody a whole afternoon.
Field notes
Longer arguments, written down
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How a Sub-Zero times its own defrost, and why chipping ice off the coil backfires
Frost on a Sub-Zero coil usually means the defrost cycle or a door seal has failed, not a timer. How the system works, what owners can safely do, and why the ice pick stays in the drawer.
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A Sub-Zero freezer that has stopped freezing, checked in the order it usually fails
Soft ice cream and a warm freezer drawer rarely start with the compressor. The owner checks that are safe, the codes that matter, and the point where it is time to stop.
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What a compressor really costs on a built-in, and when it is the wrong repair
The word compressor arrives on the phone more often than the part actually fails. Here is the figure, and the order of work that has to happen before anyone earns it.
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When a built-in is worth repairing, and when it is not
Replacement is not a like-for-like swap when the unit is framed into joinery. That single fact moves the break-even point a long way.
What it costs
What does a Sub-Zero repair cost here?
The whole book, so the figure is on the page rather than at the end of a phone call. Parts and labour together, and the flat diagnostic comes off whichever band the fault lands in.
$80 Flat $80 diagnostic covering the visit and the full diagnostic sequence, credited toward the repair once you approve the work.
| Repair | Typical range |
|---|---|
| Diagnostic visit | $80 flat, credited |
| Door gasket or seal replacement | $230–$610 |
| Evaporator or condenser fan motor | $260–$570 |
| Defrost heater, thermostat or sensor | $260–$630 |
| Ice maker, water valve or supply line | $240–$620 |
| Electronic control board | $430–$810 |
| Compressor or sealed-system repair | $950–$2,460 |
90 days on labour, 365 days on parts, genuine oem parts. The whole table is on what it costs.
Asked on the phone
What gets asked before the first visit?
- Is a warm cabinet usually the compressor?
- Rarely, and it is the last thing we reach for rather than the first. A fouled condenser, a defrost fault, a failed evaporator fan and a door that has stopped sealing account for most warm compartments in this county, and all four are cheaper to confirm than a sealed system. A fan motor is $260–$570. The sealed system is $950–$2,460.
- What does a completed repair usually come to?
- Most jobs land between $230–$610 for a door seal and $430–$810 for a control board, parts and labour together. Sealed-system work is the expensive tail at $950–$2,460. The $80 diagnostic is flat whatever the fault turns out to be and comes off the bill when you go ahead.
- Do you do the air conditioning as well?
- No, and it is worth saying before you spend a phone call on it. We are a kitchen refrigeration company, not a heating and cooling contractor: no furnaces, no heat pumps, no air handlers, no central or mini-split air conditioning, no thermostats and no ductwork. The EPA Section 608 certification our technicians hold is what federal law requires of anyone opening a sealed system, a kitchen cabinet included, and it is not a home-comfort licence. Warm house, air-conditioning contractor. Warm cabinet, us.
- Why does the week after a storm fill the diary?
- Because it is the surge when power is restored, not the strike, that reaches the electronics. A board that half-survives behaves erratically instead of dying outright, so the cabinet often looks fine for days and then starts alarming for a condition that is not happening.
Customer reviews
What owners in Clay County said
Three of the pool, chosen by this page and printed in full. The whole set, three-star entries included, is on the reviews page.
4.44.4 out of 5 across all 63 reviews published on this site
5 out of 5
Frost was building on the back wall faster than we could scrape it away. He tested the defrost heater and the sensor, found the sensor reading open, and replaced it. No talk of a new cabinet, which I expected.
Philippa R.July 2026
4 out of 5
After a lightning hit nearby the unit would run for an hour then shut itself down. He found the board damaged on one output rather than dead outright, which is why it looked intermittent. Steady since.
Hesper G.October 2025
5 out of 5
One compartment restarted after the outage and the other did not. He worked methodically through what still had supply and what did not, and the repair has held through two more storms since.
Silas R.December 2025
All 63 of them, three-star entries included, are on what owners said after the visit.
Book a diagnostic visit
One flat fee to find out what is actually wrong, credited toward the repair. We cover Orange Park and the rest of Clay County within about 40 miles.
- Diagnostic
- $80
- Labour warranty
- 90 days
- Parts warranty
- 365 days
- Monday – Friday
- 08:00 – 18:00
- Saturday
- 09:00 – 16:00
Written estimate before any work starts. No parts ordered until you approve the figure. Closed Sunday. Calls placed after hours are returned the next working morning.