How to Open Up an Existing Fireplace

A Guide by Classic Fireplaces

If you have an unused or blocked-up fireplace, opening it up can completely transform your home, creating a beautiful focal point that adds warmth and character. Whether you’re restoring a traditional hearth or planning to install a modern stove, opening up a fireplace requires a careful approach. 

This guide covers the essential steps to opening up an existing fireplace. While it’s a doable task for many, professional assistance is always available to ensure safety and ease during the process.

1-

Assess the Condition of Your Fireplace

Before starting, examine the fireplace and chimney structure. Here’s what to look for:

  • Check for Previous Blockage: Many older fireplaces are sealed with plasterboard, bricks, or insulation. Identifying what’s covering the opening will help in planning the safest and simplest removal.
  • Inspect the Chimney: Unused chimneys may have soot, debris, or even nests inside. Clearing these blockages is essential for safe use.
  • Check Stability: Opening a fireplace can impact the structural stability of the surrounding wall. If you’re unsure, an inspection by a professional can be helpful.
cleaning chimney
old fireplace surrounded by covers

2-

Prepare the Area and Use Safety Gear

Opening up a fireplace is a bit of a dusty job, so it’s a good idea to prepare the area:

  • Cover Surroundings: Lay down dust sheets to protect your flooring and furniture.
  • Wear Protective Gear: Safety goggles, a dust mask, and gloves can help you avoid dust and any loose debris during the process.
  • Ventilate the Room: Opening a window or two will help keep the area ventilated as you work.
old fireplace surrounded by covers

3-

Remove the Blockage Carefully

With the area prepped, you can start removing any materials that are blocking the fireplace:

  • Removing Plasterboard or Brick: If your fireplace was sealed off with plaster or brick, use a hammer and chisel to gradually remove the covering material.
  • Clear Debris: Sweep up any loose materials as you go to maintain a clean and safe workspace.
Clean the Fireplace and Chimney

4-

Clean the Fireplace and Chimney

Once the opening is clear, a good cleaning will prepare it for use:

  • Remove Soot and Dust: Use a brush to clean soot, dust, and any remaining debris from the fireplace.
  • Chimney Sweep: A professional chimney sweep can remove buildup safely and ensure the chimney is clear, ready for a new installation.
Clean the Fireplace and Chimney

5-

Choose Your New Fireplace or Stove

After opening the fireplace, it’s time to think about what you’d like to install:

  • Traditional Open Fireplace: Restore the original hearth and create a cosy, classic look.
  • Wood-Burning or Multi-Fuel Stove: Stoves offer charm and efficiency, along with a rustic feel.
  • Gas Fireplace: For a clean, low-maintenance option, a gas fireplace provides warmth without the need for wood.

Each option has its benefits, so choose one that fits your heating needs and aesthetic preferences.

new stove installation

6-

Install a Lintel if Needed

If you’ve exposed a large opening, you may need a lintel to support the structure above the fireplace. Lintels can be concrete or steel, providing support for safe use. If in doubt, consider getting advice on installing a lintel to ensure stability.

7-

Installation of the Fireplace or Stove

Installing a new fireplace or stove brings the project to life. Gas appliances, in particular, should be installed by a Gas Safe registered engineer to meet safety standards, and a professional can ensure the work is done smoothly.

new stove installation

8-

Add Finishing Touches

Complete your new fireplace with a few finishing touches to enhance its look:

  • Mantels and Surrounds: A mantel or surround adds character and creates a complete look around the fireplace.
  • Fireplace Accessories: Log holders, screens, or decorative tools can make your new fireplace both stylish and functional.
wood burning fireplace

Enjoy the Warmth of Your New Fireplace

Opening up an existing fireplace is a fantastic way to add a cosy and stylish element to your home. With a bit of planning, you can restore this space to its former glory or create a modern look to enjoy for years to come. And if you ever need a bit of extra guidance, Classic Fireplaces is always here to help make the process smooth and enjoyable.

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