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An empty rectangular cutout in a stone countertop, a cooktop resting on padding beside it.

Set up to last

Installation and setup
guides.

The counter cutout and its clearances, the circuit and the junction box, the gas shutoff and connector under the counter, what the cabinet below may hold, and converting a cooktop to propane.

(844) 252-4077

Mon–Sat, 8am–8pm

  • Three guides
  • Read before you book
  • Says where to stop

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Installation and setup,
guide by guide.

A cooktop is the one cooking appliance that becomes part of the counter. Its fit is decided by a hole cut in stone or laminate, its supply by a junction box or a gas valve in the cabinet underneath, and sometimes its neighbor by an oven stacked below. When any of those is slightly off, the result may not show for months: a glass top that cracks from the edge, an induction top that overheats, a cooktop that cannot be lifted out for a repair.

All 18 guides
A freshly cut rectangular opening in a honed granite kitchen counter in a US home, a tape measure stretched across it and a pencil resting on the stone, the base cabinet doors below closed.
6-minute read

Cooktop Cutout Dimensions and a Counter That Fits

Why the opening belongs to one model, the clearances above and beside it, what the cabinet below must clear, sealing the edge and fit problems that surface later.

A black induction cooktop set into a quartz counter in a US home kitchen, a tape measure hooked on the counter edge and running straight down the closed flat-panel cabinet face below it.
5-minute read

A Cooktop Over a Built-In Oven: Approved Pairs and Cabinet Height

Why makers approve stacked pairs by model number, the floor-to-counter height, the regulator elbow on gas tops, mixing brands and service in a shared cabinet.

The open base cabinet under a built-in gas cooktop in a US home kitchen, lit by a flashlight, showing a yellow-handled gas shutoff valve, a coiled flexible connector and a small outlet on the cabinet back, with the cooktop's knobs just visible above the counter edge.
6-minute read

Under the Cooktop: Junction Box, Conduit and Gas Shutoff

What belongs in the base cabinet for gas, electric and induction tops, the circuit and junction box, the shutoff and connector, and what an owner may check.

Set up to last.

The guides in this section follow the installation from the top down. One covers the cutout, the clearances around and above it and what the cabinet below has to clear. One covers setting a cooktop over a built-in oven, which makers allow only for approved pairs. One covers what should be in the cabinet underneath: the circuit and junction box for radiant and induction tops, and the shutoff, connector and regulator for gas cooktops and rangetops.

They are written for owners planning a remodel, replacing a cooktop in an existing counter or trying to understand why a recent installation misbehaves. The measurements quoted come from named manufacturers' installation instructions, which differ by model, so each guide sends you back to the document for your own cooktop before anything is cut, wired or connected.

Not sure where to start?

The short answerCooktop Cutout Dimensions and a Counter That Fits

Cooktop cutout dimensions come from the installation instructions for the exact model, not from its nominal 30- or 36-inch width: the opening is smaller than the top and varies by brand.

The short answerA Cooktop Over a Built-In Oven: Approved Pairs and Cabinet Height

Installing a cooktop over a built-in oven is allowed only for combinations the makers have approved and listed: Bosch publishes a table of CSA-certified cooktop and oven pairs, some older cooktops are not approved over any oven, and an unlisted pair needs local code approval.

The short answerUnder the Cooktop: Junction Box, Conduit and Gas Shutoff

The cooktop junction box sits in the base cabinet under a radiant or induction top, fed by its own 208/240-volt circuit and joined to the cooktop by flexible conduit with slack for service.

When reading
is not enough.

If the checks in these guides did not settle it, the visit picks up from there, stop by stop.

What repairs cost
  1. 01Each burner and zone, tried in turn
  2. 02The price, before any part is fitted
  3. 03The usual parts in the van
  4. 04Repaired, then cooked on

The problems
these answer.

Each has a page of its own, with the causes in the order worth checking.

All 17 problems
A close view of a black induction cooktop set flush into a pale stone countertop, a single crack running across one cooking zone, every zone switched off and dark, nothing resting on the glass. Gas, fire, broken glass or live current

Glass Cooktop Cracked

6 causes, cheapest first

 A black induction cooktop with a raised pop-up downdraft vent behind it, set into a kitchen island with a white stone countertop. Problem

Cooktop Fan Runs Constantly

6 causes, cheapest first

 A close view of the touch display on a black induction cooktop set into a stone countertop, a blurred unreadable code glowing on it and an owner's manual lying open beside it with out-of-focus pages. Problem

Cooktop Error Code

6 causes, cheapest first

 A close view of a finger pressing the touch controls of a black glass cooktop set into a gray quartz countertop, the display dim with one unreadable symbol lit, a damp cloth lying near the keys. Problem

Cooktop Controls Unresponsive

5 causes, cheapest first
A parent and a teenager stirring a pan together over a gas cooktop set into a kitchen island
For the heart of your home.

Questions about
installation and setup.

Can a new cooktop go into the old cooktop's opening?
Only if its cutout dimensions match the existing hole within the tolerance its instructions allow. Measure the opening with the old cooktop out and compare it with the new model's minimum and maximum.
Who should connect a cooktop?
An electrician for the circuit and junction box of a radiant or induction top, and a gas technician or the installer for the valve, connector and regulator of a gas cooktop. Owners can measure, label the breaker and keep the cabinet clear.
Does an induction cooktop need anything special underneath?
Room for air to reach its cooling fan, a dedicated 208/240-volt circuit sized to the model, and a junction box placed low enough with enough conduit slack to lift the cooktop out for service.

The other
sections.

Split by what you are trying to find out rather than by which part of the appliance it concerns.

All guides
A gas cooktop burner clicking with a small spark and no flame, an empty pan above it.
Why the cooktop behaves that way

Common problems

A finger touching the lock key on a black glass cooktop's control strip, the display blank.
Cooktop checks you can safely make

Troubleshooting

A razor scraper held flat against a black glass cooktop, lifting a dried spill.
Keeping the cooktop out of trouble

Maintenance and prevention

A kitchen with a gas cooktop switched off and every knob at off, the back door propped open to air the room.
When to stop using the cooktop

Gas, fire and burn safety

A gas cooktop and an induction cooktop set side by side into one long counter, both clean and off.
Which cooktop suits the kitchen

Choosing and comparing

Not sure which section?

Start from your question

The four questions most visits start with, each with the guide that answers it.

18 guidesWhere to start Where to start

Back to your everyday

Let’s get your cooktop working again.

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(844) 252-4077 Schedule a repair