How to Clean A Limestone Fireplace – Ultimate Guide 2022

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Among all the necessary facilities of life, a fireplace plays a significant role in keeping homes warm in cold winters.

Modern people prefer limestone fireplaces, which are newly designed and styled to provide effective heat to the entire house and add aesthetics.

While you get all the benefits of life, cleaning is another important aspect which can’t go neglected.

So, how to clean a limestone fireplace?

Though limestone is built to stay forever, ensuring proper maintenance by cleaning and removing stubborn stains should always be your priority.

In this guide, we have shared some DIY hacks which you can try to clean limestone fireplaces in the best possible way.

How to Clean A Limestone Fireplace – Step-by-Step Guide

Cleaning limestone isn’t tricky; rather, it is quite easy to do without any inconvenience. The waterproof, impervious, and heat-resistant surface of limestone hardly gets stains. However, you must ensure proper cleaning to keep it in the best state.

Gather Supplies

Even with great care, its surface gets stained and collects debris, dirt, and dust, which is essential to prevent. Here are some items you must have to start cleaning:

  • Soft Brush
  • Hoover
  • Cotton Cloth/Microfiber Cloth
  • Dustpan
  • Cleaning solution
  • Water
  • Dry Towel

Use Best Solutions For Cleaning


In the market, you will find numerous cleaning solutions unsuitable for limestone. Therefore, you must pick the right cleaner for effective and deep cleansing without harming the surface.

So what are the best solutions to clean a limestone fireplace? For surface cleaning, any mild dish wash soap is useful. However, for deep cleaning, it is a must to have a cleaner specifically designed for limestone. Harsh or toxic chemicals aren’t safe for this purpose.

Use Right Stain Removing Tools

Here are some other important tools to get rid of stains from limestone fireplaces:

  • Dish wash soap Mild Only
  • Hydrogen peroxide
  • Flour
  • Safety gloves, gears
  • Wooden spatula
  • Clean rags
  • Vacuum cleaner

Start With Dusting


The first step after collecting all necessary supplies consists of dusting the surface. Follow these steps to eliminate dust particles:

  • Take a sheet or old cloth to place at the base of the fireplace to collect dirt falling from above. This will prevent excessive dust accumulation on the floor, increasing the mess.
  • Get a vacuum attachment without a spinning brush to suck all debris. You only need to remove or loosen up the dirt and not scratch the surface.
  • If no vacuum attachment is available in your facility, you can dust the roof off with a soft cloth.

Note: Always clean the limestone fireplace by starting with dusting to make sure everything goes well.

Apply Cleaner

  • Spray or directly apply the cleaner with a sponge. You can use a ready-to-use cleaner or make your own by adding dishwashing soap to water.
  • Dip cloth or sponge in the solution and rub over the stained regions of the fireplace. From the mantel to the hearth, clean every corner and leave the applied solution for a few minutes.
  • Rinse the solution thoroughly and wipe it well with a dry cloth or a towel. If stains are more stubborn, you can use a brush with hard bristles but be careful from scratching the limestone.

Remove Tough Stains With a Poultice

The best way to treat tough stains on limestone is by applying a poultice paste.

  • You can make it by adding hydrogen peroxide and flour inside a bowl and mixing them thoroughly till you see equal consistency.
  • Make the areas moist, and then apply the paste.
  • Cover it with plastic wrap and leave it to dry for at least two days.
  • Take the poultice off and wash the surface.

Rinse & Dry It 

  • Rinse the fireplace till you get rid of all stains, dust, and debris.
  • Keep changing the water and repeat rinsing to obtain the required cleaning results.
  • Once washed perfectly, dry it or leave it to air dry for some time.
  • Don’t rub the towel so hard on the limestone for drying.

How to Seal A Limestone Fireplace


Whether you are new to using a limestone fireplace or have been using it for a long time, sealing is the best solution to keep it in good condition. Your stone will gather dirt and debris if not sealed properly. You may need to reseal it frequently, depending on your frequency of use.

Ensure to get only the right sealant because incompatibility will cause more harm to the fireplace surface. Apply two or more coats of a sealant as per the manufacturer’s recommendation.

Sealing Limestone

How to Sand A Limestone Fireplace

Unlike other tough stones, limestone is a soft stone processed through different phases to turn it into a fireplace. Though it is sturdy, it also has minor flaws which can get chipped. Fortunately, repairing the chips isn’t impossible; you can sand it to make it new.

All the chipped areas can be filled and sanded without specific polishing material.

What Things You Should Never Use to Clean A Limestone Fireplace

Any accidental scratch or harsh chemical can damage the limestone, making it difficult to find suitable repairs. But you can avoid such scenarios, which can harm your limestone fireplace. These are some tips and practices you should always avoid when dealing with your natural stone:

  • Never apply vinegar on its surface.
  • Avoid using citrus-containing solutions or liquids.
  • Do not use ammonia, bleach, or chlorine for cleaning.
  • Do not use acidic cleaners.
  • The solution you use must have neutral pH.
  • Spray polish or wax is not good for limestone due to its darkening effects.
  • All-purpose cleaners or bathroom cleaners should never be used.
  • Red wine, tea, coffee, candles, cigarettes, and flower vases must not stand on limestone fireplaces.

Frequently Asked Questions

How to whiten a limestone fireplace?

A homemade paste of poultice is best to whiten a limestone fireplace. All you need to add is hydrogen peroxide inside flour to make a thick paste. Apply it over dark areas and rinse the paste to see amazing results.

Can I use CLR on limestone for cleaning?

CLR (Calcium, Lime & Rust Remover) is an acidic cleaner that is safe for plastic surfaces but not recommended for natural stones. The ingredients of this remover can cause etching on limestone.


We hope you now understand better how to clean a limestone fireplace in some of the best ways. We highly recommend cleaning once or twice weekly with mild soap and water. Follow all the preventive measures to ensure its longevity. Limestone also has a porous surface which means it often requires maintenance.

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