What’s the Difference Between Skimming and Plastering?

When it comes to finishing or renovating walls, the terms skimming and plastering are often used interchangeably—but they aren’t quite the same. While both involve applying a plaster-based material to wall or ceiling surfaces, they serve different purposes and are used in different scenarios. Whether you’re revamping an old interior, preparing for a fresh coat of paint, or repairing damaged walls, understanding the difference between skimming and plastering is key to achieving the right result.

In this article, we’ll break down the core distinctions between the two, when to use each method, and what to expect from professional services like Skimming Services Bristol and traditional plastering options. We’ll also explore how these services relate to other plastering tasks, such as External Plastering in Bristol, and where a skilled plasterer in Bristol can make all the difference in your project.

What Is Plastering?

Plastering refers to the process of applying a thick layer of plaster to a wall or ceiling surface to provide a flat, solid base. It is usually done on bare surfaces, such as brick, blockwork, or stud walls with plasterboard. The goal of plastering is to create a durable, level surface that can later be painted, tiled, or wallpapered.


There are several types of plastering, including:

  • Bonding plaster: Used as a base coat over rough surfaces like brick.
  • Hardwall or browning plaster: Often applied to masonry surfaces.
  • Finish plaster: A smoother final layer that creates a paint-ready finish.

Traditional plastering typically involves applying two layers: a base coat for strength and a finishing coat for smoothness. This makes it ideal for new builds or full-scale renovations where walls are being constructed from scratch.

What Is Skimming?

Skimming, on the other hand, is a finishing technique applied to an already plastered or plasterboarded surface. It involves applying a thin coat of finishing plaster—usually around 2–3mm thick—to refresh the surface and create a flawless finish.

Skimming is not used to level walls or fill large gaps; instead, it’s about improving the appearance of a wall that’s already in reasonably good condition. It’s most commonly used when:

  • A wall has minor blemishes or hairline cracks.
  • You want to refresh old plaster that has aged but is still structurally sound.
  • You’re replacing wallpaper and need a smooth paint-ready surface.

Skimming is considered a more delicate task that focuses on aesthetics rather than structural support.

Key Differences Between Skimming and Plastering

1. Purpose and Use

  • Plastering is used to build up a new wall surface from scratch or repair significant damage. It creates both structure and finish.
  • Skimming is a cosmetic finish, ideal for reviving old or slightly damaged walls.

2. Thickness of Application

  • Plastering layers can range from 5mm to over 10mm depending on the base and purpose.
  • Skimming involves a very thin layer—typically 2–3mm—just enough to smooth the surface.

3. Surface Requirements

  • Plastering can be applied to bare brick, block, or plasterboard.
  • Skimming requires a reasonably sound base (plastered walls or drywall) and is not suitable for rough or uneven surfaces.

4. Time and Cost

  • Plastering usually takes more time and is costlier due to multiple layers and surface preparation.
  • Skimming is quicker and more budget-friendly when the base wall is already suitable.

5. Skill Level

Both processes require skill, but skimming demands more finesse to create a flawless, even surface across large areas with minimal thickness. In many ways, it’s less forgiving than traditional plastering.

When Should You Use Skimming?

Skimming is the go-to choice when:

  • You’re redecorating and want a smooth surface for painting.
  • The existing plaster has aged but is still in good condition.
  • You’ve removed wallpaper and need a refreshed look.
  • Minor cracks or surface imperfections need to be covered.

It’s also commonly used in property refurbishments where complete plastering isn’t necessary, saving both time and money.

If you’re based in the southwest and searching for Skimming Services Bristol, choosing a local expert ensures you get the finesse and finish required for a long-lasting, visually appealing result.

When Is Plastering the Better Option?

Plastering is the right approach when:

  • You’re building or extending a room with bare walls.
  • Old plaster has come loose or is heavily damaged.
  • You want better sound or thermal insulation.
  • You need a fresh surface due to large-scale structural repairs.

It lays the groundwork for skimming or final decoration and is crucial for homes undergoing full renovations or layout changes.

Do Skimming and Plastering Ever Overlap?

Yes, in some projects, both techniques are used. For example, after a wall has been fully plastered with a bonding coat, a skim coat may be applied as a final touch to achieve the best finish possible. In this sense, skimming can be seen as part of the larger plastering process.

In other cases, a property might have certain walls that need full plastering while others are suitable for skimming. An experienced plasterer in Bristol can assess each wall and recommend the most suitable method.

External Plastering: A Different Ballgame

While this article focuses on internal finishes, it’s worth noting that External Plastering in Bristol—often called rendering—follows different rules. Exterior plastering uses cement-based mixes that are weatherproof and thicker in application. It’s designed to handle rain, wind, and temperature changes, while also improving the appearance and protection of outside walls.

Skimming is never used externally—it’s strictly an internal finishing method.

Hiring the Right Professional

Whether you’re dealing with old, worn-out walls or building a new space from scratch, hiring a qualified plasterer ensures the job is done right. A professional will assess the current condition of your walls and guide you on whether skimming or plastering is needed.

If you’re local, reaching out to a seasoned plasterer Bristol can save you time, money, and frustration. From choosing the right materials to executing a smooth finish, the expertise of a professional is invaluable—especially if you’re aiming for a high-quality, long-lasting result.

Conclusion

Understanding the difference between skimming and plastering is essential for anyone involved in home improvement, renovation, or property maintenance. While both techniques involve the application of plaster, they serve different purposes, use different materials and methods, and are suited to different wall conditions.

Plastering builds up a new wall surface, offering strength and structure. Skimming, by contrast, refines and smooths existing walls for a fresh, modern look. Knowing which method to use—based on your wall’s condition and your desired outcome—can make all the difference.

If your walls are sound but dated, Skimming Services Bristol might be the quick fix you need. If you’re starting from bare blockwork or dealing with heavy damage, a full plastering job is the smarter choice.