A Common Question from Homeowners
One of the most common questions we get asked is whether you can plaster over existing plaster. It’s a fair question, especially if your walls are looking tired but not completely damaged.
The short answer is yes — in some cases. But it depends entirely on the condition of the existing plaster and how well it’s prepared before new plaster is applied.
When Plastering Over Old Plaster Works
If the current plaster is still solid, well-bonded and relatively flat, a fresh skim coat can be applied over the top. This is often the quickest and most cost-effective way to refresh a room.
In many Exeter homes, particularly those that have simply been decorated multiple times, skimming over existing plaster can completely transform the space with minimal disruption.
When It’s Not the Right Option
There are situations where plastering over old plaster simply won’t last.
If the plaster is blown, meaning it has come away from the wall underneath, it will need to be removed. Skimming over it may look fine initially, but it will eventually fail.
Damp is another major factor. If moisture is present, plastering over the top will only trap the problem and lead to further damage.
Deep cracks, unstable surfaces or poor previous repairs can also prevent new plaster from bonding properly.
The Importance of Proper Preparation
Preparation is what determines whether plastering over old plaster will be successful.
Surfaces need to be cleaned, stabilised and properly treated before any new plaster is applied. This may include using bonding agents or carrying out minor repairs to ensure a solid base.
Skipping this step is one of the main reasons plastering jobs fail.
Older Exeter Properties Require Extra Care
Many homes in Exeter are older and may have multiple layers of plaster from past work. These properties often need a more careful approach.
It’s important to assess what’s underneath before deciding whether to skim or fully re-plaster. In some cases, removing old plaster and starting fresh will give a far better long-term result.
Getting the Best Finish
A professional plastering job should leave your walls smooth, even and ready for decorating. Whether that involves skimming over existing plaster or starting from scratch depends on the condition of the surface.
Making the right call at the start saves time, money and avoids problems later on.
Professional Plastering in Exeter
At SW Plastering & Rendering, we carry out all types of plastering work across Exeter, from simple re-skims to full re-plastering projects.
We always assess the condition of your walls first and recommend the best approach for a long-lasting finish.
Not Sure What Your Walls Need?
If you’re unsure whether your walls can be plastered over or need more work, we’re happy to take a look.
Get in touch with SW Plastering & Rendering for honest advice and a free quote for plastering in Exeter.
Do you need help from our experts?
Give us a call today to get expert advice and support from our experienced team.