top of page
  • True Window & Glass Centre

What to Expect From Your Composite Door Installation

Updated: May 19, 2023

Whether you’re midway through a home renovation project, or are looking to boost the curb appeal of your property, doors are among the most important elements to consider. When it comes to your home, first impressions really do matter, not to mention security and insulation; a high quality door plays a part in each of these elements.

That said, with so many styles, materials and designs to choose from, option paralysis can get in the way of progress. This is where we come in…

Here at True Window & Glass Centre Ltd, we’re well-versed in all things door, window and glazing related. If you’re considering installing composite doors at your home, but find yourself with a few burning questions, we’re here to help.

Read on to discover our guide to composite door installation.

What Are Composite Doors?

Before we dive head first into the installation process and benefits associated with composite doors, we thought it would be useful to discuss the basics. If you’re still unsure what the term ‘composite door’ means, this section should be of use. That said, if you’re happy with their basic construction, feel free to skip to the next point.

As the name suggests, a composite door is constructed using multiple materials. These doors usually feature a traditional design, combined with the benefits of modern advancements. Typically, a composite door is built using a wood/timber core, encased by PVC, laminate and even fibreglass surroundings. We’ll explore the benefits of such materials later in the article, but it is worth bearing in mind their impact durability, aesthetics, and cost.

Since they were first introduced around 1996, composite doors have become a popular choice in homes around the world. Not only are they a cost-effective alternative to hardwoods and solid timber, but they also offer increased energy efficiency and are often a far more sustainable option. With a range of colours, finishes and design styles available, composite doors are a versatile and worthwhile choice for any home.

The Installation Process

If you’re considering investing in a composite door for your home, you’d be right to wonder what the installation process might look like. Below, we’ll talk through the stages involved.

Taking Measurements

When installing a composite door, the first step is to measure the doorway accurately. This ensures that the door fits perfectly, and there are no gaps or spaces that could compromise its insulation and security. The measurements should be taken from three points: the top, middle, and bottom of the doorway. The width and height measurements should be taken, and the smallest measurement should be used to determine the size of the door.

Removing the Old Door

Secondly, if there is an existing door in place, it needs to be removed carefully. The hinges and locks should be unscrewed and removed, and the frame should be inspected for any signs of damage or decay. Any repairs or replacements should be made before installing the new composite door.

Preparing the Door Frame

The next step is to prepare the door frame for installation. The frame should be levelled, and any irregularities should be corrected. The frame should be securely fixed to the wall using screws and wall plugs, ensuring that it is level and plumb. This is particularly important if the previous frame has warped or expanded the surrounding brickwork.

Fitting the Composite Door

The composite door is then fitted into the frame, with close attention paid to correct alignment. The door will usually be supported by wooden blocks, with the hinges attached to the frame. Adjustments will then be made to ensure that the door opens and closes smoothly.

Handles and Locks

Once the door is in place, the handles and locks can be fitted. The handles are typically attached to the door using screws before the lock is fitted to the frame. The lock should be tested to ensure that it works correctly and that the door is secure.

Sealing and Insulating

The final step in the installation of a composite door is to seal any gaps using foam insulation. This ensures that there are no drafts or air leaks, improving the door's energy efficiency. The door should be tested to ensure that it opens and closes smoothly and that it is secure and weatherproof.

Benefits Of Composite Doors

With an understanding of the installation process, let’s recap the many benefits associated with the installation of a composite door at your home.


Firstly, and perhaps most importantly, one of the main benefits of composite doors is their incredible security. The combination of materials used in the construction of the door means that they are extremely robust and difficult to break down. Additionally, most composite doors come with a multi-point locking system, which makes them even more secure.


Moreover, composite doors are incredibly durable and can withstand even the harshest of weather conditions. The outer layer of fibreglass is resistant to fading, cracking, and warping, which means that the door will look great for many years to come. The foam core and timber frame are also resistant to moisture, which makes them less prone to rotting or swelling.

Energy Efficiency

With the cost of heating and fuel rising, energy efficiency is on everyone’s mind. Fortunately, composite doors are excellent at insulating your home, which means that they can help you save money on your energy bills. Their core provides excellent insulation whilst additions such as weather seals work to prevent draughts. As a result, your home will stay warm in the winter and cool in the summer, which means you won't have to rely as much on your heating and cooling systems.

Low Maintenance

Unlike wooden doors, composite doors require very little maintenance. The outer layer of fiberglass is incredibly easy to clean, and it won't need repainting or varnishing like wood. Additionally, the foam core and timber frame are resistant to moisture and rot, which means that you won't need to worry about them deteriorating over time. A simple wipe with a wet cloth and soapy water is usually all you need to keep a composite door looking its best.

Aesthetics & Composite Door Styles

Composite doors come in a wide range of styles, colours, and finishes, which means that you can find the perfect door to match the style of your home. Whether you want a traditional wooden look or a modern design, there is a composite door that will meet your needs. Additionally, the outer layer of GRP can be moulded to create intricate designs and patterns, which means that you can have a door that is truly unique.


Investing in a composite door is an excellent way to add value to your home. These doors are highly desirable among potential buyers, and they can significantly increase the curb appeal of your property. Additionally, their durability and low maintenance requirements mean that they will last for many years, which makes them an excellent long-term investment.

Composite Doors & Glazing Services: True Window & Glass Centre Ltd

If you’re hoping to install a composite door at your property, it is crucial to employ the services of an expert. While fitting it yourself may be possible, this is an incredibly time consuming task and, without the right tools, it can quite easily go wrong. Fortunately, we’re here to help.

At True Window & Glass Centre Ltd, our team of experts are well-versed in all areas of composite door fitting and installation. To discover our range of composite doors and discuss your requirements, get in touch with us today.

9 views0 comments



bottom of page