No, it is not safe to use a cracked ceramic (or glass-ceramic) cooktop. The risk of electrical shock, fire, and catastrophic shattering far outweighs the convenience of putting off a repair.
If the structural integrity of the cooktop is compromised, it's unsafe to use and full replacement is usually the better option. Other reasons to replace your cooktop: The crack is part of larger internal damage (burners, seals, or control boards).
When restoring ceramic vessels with hairline cracks, in particular when it has intricate painting and/or texture details, it is important not to completely break off the crack. We show two hairline crack mending possibilities: a) the "pegging" method or b) enabling the epoxy to flow and penetrate the crack (see video).
Glass top stoves are durable, made of heavy-duty heat-resistant ceramic glass, and do not break easily under normal conditions. However, because glass is a rigid and brittle material, it is susceptible to damage from three main sources: impacts (dropping heavy pots), thermal shock (sudden temperature changes), and scratches (sliding heavy cast iron).
Replacing a glass stove top typically costs between $350 and $800 in total. This breaks down to $200 to $600 for the replacement glass (depending on the brand and model) and $150 to $250 for professional labor. Total costs will lean higher if you need induction glass or internal burner repairs.
In contrast, ceramic cooktops typically have a lifespan of 5 to 10 years, with adequate maintenance and care being critical for extending their life. Additionally, the overall quality and brand reputation of the appliance can play a significant role in determining its longevity.
Between 5 and 10 years – Compare the cost of repairs to buying a new one. If the repair cost is more than half of a replacement, consider upgrading. Over 15 years – Replacing is usually the better long-term decision. For example, gas stoves should be replaced every 15 years to maintain safety and efficiency.
For example, placing a cold, heavy pot on a hot burner or spilling cold water on a hot surface can cause the glass to contract and expand at different rates, leading to immense stress. This stress can cause the glass to crack or even shatter.
Glass top stoves typically last 10 to 15 years, though they can reach up to 20 years with exceptional maintenance. The internal heating elements and wiring usually dictate the overall appliance lifespan, while the glass itself is prone to cracking or permanent scratching if not cared for properly.
Small cracks can sometimes be patched up with epoxy, but larger cracks, especially those in multi-pane windows, usually call for a full replacement. Until you replace your window, you can use temporary solutions like applying adhesive glue, bubble wrap, or a thick plastic sheet.
Hairline cracks are typically thin and shallow, often less than 1/8 inch wide. They may only affect the plaster or topcoat. Structural cracks, on the other hand, extend through the shell or foundation, often causing leaks, uneven surfaces, or visible displacement.
Kintsugi roughly translates as 'joining with gold' (kin is 'gold' and tsugi is 'join'). It is a centuries-old Japanese repair technique which uses urushi (Japanese lacquer) dusted with powdered gold to restore broken ceramic and porcelain vessels.
Yes, broken ceramic is dangerous due to extremely sharp, glass-like shards that cause deep cuts and the risk of microscopic dust that can damage your respiratory system. For tableware, cracks and chips also pose health risks by harboring bacteria and exposing food to toxic heavy metals.
Repairing a Cracked Glass Cooktop Surface
We do not recommend using the Cooktop until the appliance is repaired. On Ranges, the oven vents out the backsplash or rear of the oven onto the Cooktop, so we don't recommend using the oven until the Cooktop is fixed.
Cracked ceramic hobs are dangerous. Do not use a cracked ceramic hob! They work by transferring heat from an electrical circuit, through the ceramic, to the pan. There is a 220 volt circuit underneath the glass, and the only thing protecting the electrical circuit from exposure to moisture is that ceramic.
For a glass stove top, the type of glue you need depends entirely on the nature of your repair:
Glass stove tops can crack due to impact damage, thermal shock, trapped food debris, or improper installation. Although made of durable ceramic-glass, sudden weight and rapid temperature fluctuations can compromise the surface.
Stoves generally last 13 to 15 years, with gas models historically lasting slightly longer than electric due to fewer complex moving parts. However, overall reliability depends significantly on the model's simplicity and the manufacturer.
Replacing a glass stove top typically costs between $350 and $800 in total. This breaks down to $200 to $600 for the replacement glass (depending on the brand and model) and $150 to $250 for professional labor. Total costs will lean higher if you need induction glass or internal burner repairs.
While standard glass-ceramic cooktops are scratch-resistant, not scratch-proof, advanced innovations like Samsung’s Anti-Scratch Matte Glass and SCHOTT CERAN Miradur® technology significantly reduce scratching. To maintain a pristine cooking surface, you must use flat-bottomed cookware and clean with a non-abrasive ceramic cooktop cleaner.
Glass cooktops are incredibly durable and designed to withstand daily use. They are hard to crack. However, you can reduce the risk of cracks by never placing hot pots and pans on a cold cooktop and by avoiding using cold water on hot surfaces. Maintaining even temperature balances will protect your appliance.
Glass top stoves are visually sleek, but they are prone to specific issues. The most common problems involve surface scratches and cracks from heavy cookware, burners that won't heat up due to a blown heating element or faulty infinite switch, and stubborn burnt-on food stains that require specific cleaners.
Range or Stove, 13-15 years:
Gas stoves last longer than their electric counterparts by 2-5 years, on average. Good everyday care will help extend the useful life, such as cleaning the stove after every use and regularly checking the burners.
What is the 50/50 rule for appliances? It's a simple way to decide whether to repair or replace a home appliance like a refrigerator or dishwasher. If the appliance has reached 50% of its lifespan, and the cost to repair is 50% more than a replacement, then it may be time to replace it.
A vintage gas appliance in good mechanical repair (one that has been serviced or tuned up within the last 5 years) is reliable and safe. If yours doesn't have a regulator or modern flexible gas supply line, contact us to install them - they are an absolute must for safety.