Limestone fireplaces have a natural resilience that’s perfectly suited for home heating. It can handle both open hearths and modern heating systems (like gas fires and electric fires) without any issues. That’s because the surrounds are made primarily from calcium carbonate, which forms over thousands of years as organic materials accumulate. It’s a porous material that’s equally valued by stonemasons for its workability. Manufacturers may find limestone easier to cut and shape than harder stones. It allows for the kinds of precise, clean lines often seen in custom suites and comes in natural colours ranging from soft creams to darker greys.
How do you maintain a limestone fireplace?
1. Regular dusting/cleaning: To remove loose debris, dust your limestone mantel, hearth and surround regularly using a soft brush (or a vacuum cleaner with a soft brush attachment). Then, wipe it down with a non-abrasive cloth dampened with warm soapy water only (this step will prevent soot from settling into the limestone's porous surface). Limestone fireplaces should always be dried thoroughly with a dry, soft cloth to prevent the formation of water spots.
2. Avoid harsh cleaners: Limestone is sensitive to acidic and alkaline substances. Homeowners should avoid using vinegar, bleach, lemon juice, or other household cleaners that aren’t specifically designed for natural stone.
3. General care tips: Avoid placing hot items, such as candles or cups, directly on the limestone surface as they can cause marks. Use coasters or trivets to protect the stone. You should also avoid placing heavy objects that could chip or crack the stone. When cleaning, protect the surrounding areas to prevent accidental cleaning agent spills.
Does a limestone fireplace need to be sealed?
Limestone is a sedimentary rock capable of absorbing spilt liquids like wine, coffee, or oils. While a modern limestone fireplace doesn’t necessarily need to be sealed, it’s generally recommended to protect the stone from stains. Sealing the surround involves purchasing a limestone-specific sealant and following the manufacturer's instructions. Poor application can lead to blotchy results, so this step is especially important!
It’s also worth noting that you may need to complete this process more than once. The protective layer can wear off over time, especially in areas exposed to heat, soot, or frequent cleaning. Reapply the sealant every one to three years, or sooner if you notice signs of wear.
Does limestone handle heat well?
Yes, limestone is a heat-resistant, non-combustible material that does not crumble when exposed to the high temperature of gas fires.
