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Window Trim

Choosing the perfect uPVC window trim is a crucial step towards achieving a seamless appearance that complements your home’s style. Whether you’re aiming for a modern, rustic, or traditional look, carefully selecting the right trim can make a huge difference in the final outcome. Window Trims, also known as Window Casing, is the moulding that encloses windows. They provide an extra layer of functionality that protects the window frame from moisture and wear. They also create an elegant and polished finish that adds value to your home’s aesthetic appeal. Another benefit is that if you’re looking to update or replace your existing trims, it’s a hassle-free process that will significantly enhance the appearance of the window and home. At MB DIY, we offer a range of reliable uPVC window trim, including angle trim, window finishing trim, quadrant windows, and more. All are designed to elevate the overall look of your home while providing functionality and protection.


uPVC Trims for Windows

A typical uPVC window trim consists of several different parts, including an Angle, Finishing, Architrave, Quadrant Window Trim, and more. All of the cuts are available in a range of sizes and shapes, making them a versatile option for different window styles and sizes.

Angle Trim

Angle Trim is a simple yet elegant type of Window Casing that adds a decorative touch to the corners of your windows. You might wonder if windows even need trim around them, but in fact, window casing is an essential addition that serves multiple purposes. It creates a polished and finished look, covers gaps between the window frame and the wall, and protects the frame from moisture and wear.

Even though there are many types of Window Casing available, the Angle Trim is specifically designed to provide a clean and crisp edge to the window’s corners. This is to create a smooth transition from the window frame to the wall.

The quality of a Window Casing is essential, but don’t worry—window trimming does not reduce quality. In fact, it can improve the quality and longevity of your windows by protecting them from external elements such as moisture, dust, and insects. The right type of window casing can also enhance the aesthetic appeal of the window and complement the overall style of the room. To ensure a high-quality finish, it is crucial to choose the right type of Window Casing and hire a professional to install it correctly.

Window Finishing Trim

Window finishing trim is a decorative touch that can give your windows a polished and finished look. To install it, the trim must first be cut to the right size and then secured onto the window frame using screws or adhesive. Any gaps or seams are then filled and sanded down for a smooth finish, and the trim is painted or stained to match the window frame and walls.

Adding window finishing trim can improve the overall aesthetic of your windows by creating a clear boundary between the window and the wall. It also adds an extra layer of insulation, which keeps heat in and uses less energy.

The difficulty of installing window finishing trim depends on the type of trim and the installation method used. Some trims may require professional installation, while others can be easily installed by homeowners with basic tools and skills. It’s important to choose the right type of trim and installation method that matches your level of experience to ensure a successful installation.

Quadrant Windows Trim

Quadrant Windows Trim is a curved trim that covers the gap between a window frame and the wall. It’s typically flat on one side and curved on the other, which gives it a unique shape and name. Quadrant Windows trim comes in different sizes and styles to fit any window design. To measure the quadrant trim, first measure the distance between the window frame and the wall. The radius of the curve is usually half the distance between the frame and the wall.

Installing quadrant window trims is straightforward. First, cut the trim to the appropriate length and shape, ensuring that it’s flush against the frame and covers the gap between the frame and the wall. Use nails or adhesive to attach the trim, fill any gaps or seams, and sand down to create a smooth finish. Finally, paint or stain the trim to match the colour of the window frame and walls.

Architrave Window Trim

Unlike skirting boards, which cover the joint between the wall and the floor, Architrave trim is solely used to frame the window and add a decorative element to the room. Skirting boards protect the walls and add a finished look to the floor. Although they may appear similar in design and materials, they serve different purposes in a room.

Different types of Architrave Window Trims are available, including bullnose, chamfered, ogee, and torus architrave. Each type has a unique design, such as a rounded edge or rounded profile with a small groove at the base.

Frame Your View: Enhancing Your Windows with Wall Trims

Window Casing is a crucial decorative element that adds value to the appearance of a home. With various types of trims available, including angle trims, window finishing trims, quadrant window trims, and architrave window trims, homeowners have numerous options to choose from. Each type of trim has unique features, benefits, and installation methods to create a polished and finished look for the window and room. Window Casing come in a range of designs, sizes, and materials to match any home’s style and design. When selecting the ideal Window Casing, it’s important to consider the design, material, and installation process to achieve the desired outcome. All in all, Window Casing is a valuable addition to any home, providing both aesthetic and functional benefits.

If you want assistance choosing the perfect trim for you, please contact a member of our sales staff, who would be happy to help you.


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Wednesday 7:30 AM to 5:00 PM
Thursday 7:30 AM to 5:00 PM
Friday 7:30 AM to 5:00 PM
Saturday 8:00 AM to 4:00 PM
Sundays Closed

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Deeplas External Angle Trim | 25mm x 25mm | Various Colours

Due to length & size restrictions with our delivery partners, we are currently only able to deliver certain items to the following postal areas:

  • All TS postcodes
  • All NE Postcodes
  • All DL Postcodes
  • All DH Postcodes
  • All SR Postcodes

We are looking into increasing our postcode range gradually with our own fleet of vehicles.
Should you not want to opt for a delivery service, please be aware Click and Collect is still available on all of our items.

We aim to despatch all of our orders within 24-48 hours of order confirmation, during peak times or bank holidays this despatch time can occasionally be increased.

Should you have any queries regarding this please don’t hesitate to call our sales team on 01642 455945.


We aim to reply to you either via email or phone within 24 hours Monday to Friday.