Sub-Zero built-in installation and retrofit

Most of the built-in installation problems we are called to fix were created before the appliance arrived, at the point where somebody assumed a nominal cabinet width was the same as a rough opening. It is not, and the tolerance on a built-in is tight enough that a quarter inch decides whether the door closes square.

This sheet is the survey we run before a cabinet is ordered, and the same one we run when an existing installation is misbehaving.

The five measurements

Rough opening width, at three heights. Top, middle and floor. Old walls are not parallel. The controlling number is the narrowest of the three, not the one that is convenient.

Opening height, and what is above it. A built-in exhausts through the grille at the top and needs a clear path out of the cabinetry. A soffit, a crown moulding returned across the opening, or a decorative panel added later will trap the discharge air, and the machine then breathes its own heat. This is the single most common retrofit error we find in older kitchens.

Depth and the wall behind. Water line, receptacle location and any pipe chase eat into depth. A cabinet pushed forward by a supply stub sits proud of the run and looks wrong forever.

Floor level across the full width. We shoot the floor at both sides of the opening. A built-in must sit level for the doors to self-close and for the seal to make contact around the perimeter.

The electrical supply. A built-in wants its own dedicated circuit. We confirm what the receptacle is actually connected to rather than what the panel label claims, and we read voltage under load.

Why the historic belt is a category of its own

Kitchens in Riverside, Avondale, Old Ortega, San Marco and Old Mandarin were laid out between the 1900s and the 1930s, long before a 36-inch built-in existed. Three things follow, and we see all three routinely.

The opening was widened once already, decades ago, and is out of square. The wiring predates the appliance, so the refrigerator is sharing a circuit with counter receptacles and the fault presents as an intermittent electrical complaint rather than an obvious one. And the floor is heart pine over a long joist span that moves seasonally, so a cabinet set perfectly level in January can rack enough by August to break the door seal along the hinge side.

The correct answer in those houses is usually not a bigger appliance opening. It is a column configuration that fits the opening you have, plus the carpentry and electrical work identified in advance rather than discovered on delivery day.

What we deliver

A written survey with every measurement, the clearance calculation, and a plain statement of what has to change before a cabinet can be set. If the opening will not take the model under consideration, we say so while it is still possible to choose a different one.

For an existing installation that is causing trouble, the same survey usually identifies the cause in one visit — most often a blocked exhaust path, a cabinet that is out of level, or a shared circuit.

The diagnostic fee is flat and credited toward the work. Estimates are in writing before anything is ordered. We are independent, we service Sub-Zero refrigeration only, and our labor carries 90 days with 365 days on parts.