How to Remove, Replace and Restore Cornices
Cornices add character and elegance to a room, but when they become cracked, outdated, or damaged, they can make a space look tired.
The good news is that with the right approach, you can remove, replace, and restore cornices without needing to hire a professional.
With a few tools, patience, and the right materials, you can refresh your walls and ceilings and give your home a polished look again.
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Step 1: Assess Whether to Repair or Replace
The first step is to look closely at the condition of your cornice. If there are only minor cracks or chips, a quick repair with filler and paint may be all you need.
However, if the cornice is broken in several areas, pulling away from the wall, or too brittle to fix, it’s best to remove it completely and install a new one.
This way, you ensure a long-lasting and clean finish.
Step 2: Choosing the Right Material
Cornices are available in several materials, and the right choice depends on your budget, style, and skill level.
Plaster is traditional and gives a classic finish, but it can be heavy and tricky to install.
MDF offers a smooth surface and is easier to cut, making it beginner-friendly.
Polyurethane is lightweight, durable, and simple to handle, which makes it an excellent option for DIY projects.
When it comes to cutting corners, a fine-tooth saw and a mitre box are essential to achieve precise angles and neat joints.
Step 3: Safely Removing Old Cornices
Careful removal is key to avoiding damage to your walls.
Use a chisel and hammer to gently pry the cornice away.
Work slowly to minimize cracks in the plaster or drywall beneath.
Clean off leftover adhesive, nails, or debris so the wall surface is smooth.
If you plan to repaint the room, this is the perfect stage to do it, as you’ll have a clean line once the new cornice is fitted.
Safety tip: Wear gloves and protective eyewear to keep yourself safe from dust and small fragments.
Step 4: Installing the New Cornice
Once the surface is prepared, it’s time to fix the new cornice in place:
Apply a strong construction adhesive or cornice cement along the back.
Start at the corners and press the cornice firmly against the wall and ceiling.
Secure it temporarily with small nails or pins to keep everything aligned while the adhesive sets.
Continue along the straight runs, ensuring the joints fit tightly together.
A useful trick is to lightly mark a guideline on the wall and ceiling before installation. This will help keep everything straight and even.
Step 5: Perfecting the Finish
Finishing touches make all the difference:
Fill gaps or joints with flexible filler or plaster.
Sand the surface once dry for a smooth result.
Apply a coat of paint that matches your walls or ceiling, or choose a contrasting shade to highlight the detail.
These steps will ensure the cornice blends seamlessly into the room and looks professionally installed.
Additional Tips for Best Results
Work in sections rather than trying to install long stretches all at once. This helps maintain control and alignment.
Measure twice, cut once. This simple habit prevents wasted material and frustration.
Consider room style. Modern interiors often look best with simple, clean-lined cornices, while traditional spaces benefit from more ornate designs.
The Reward of a Fresh Transformation
Restoring or replacing your cornices is more than just a repair job—it’s a way to refresh your entire space.
A well-fitted and freshly painted cornice frames your walls beautifully, adds charm, and elevates the look of your home.
Taking the time to do it carefully ensures a finish you can be proud of every time you step into the room.
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Source: The Future Homes Network
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