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When choosing black composite doors from Emerald, not only are you guaranteed a visually appealing door that will suit any home, you can enjoy a selection of excellent practical benefits. As we supply three different types of composite door, Distinction, Solidor & Infinity, their practical qualities differ slightly. However, each is equipped with a hardwearing Glass Reinforced Plastic exterior for a damage resistant, weatherproof door and either an ultra-dense foam or solid timber core, for an incredible thermal performance. Additionally, they’re one of the securest types of entrance door on the market.
Suitable for any property
Three types of composite door available
Available with Secured by Design accreditation for maximum security
Exceptional quality finish that resembles natural timber
Wide selection of door furniture to choose from
Option of dual colours
Warmer home and lower energy bills
Each of the three composites we provide is renowned for quality that is consistently excellent. A black finish on either variant is guaranteed to improve the appearance of your home, regardless of whether it’s a country cottage, a Victorian townhouse or modern apartment.
Contact usWhy not read through some of our informative blogs, written in the aim of answering frequently asked questions on all things home improvement related.
See all newsApril 15, 2026
If you have been researching a conservatory warm roof, you have probably come across the term again and again. It is one of the most used phrases in the industry, and for good reason. A properly designed warm roof system...
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Choosing between bi-folding doors and sliding doors can feel like a big decision. Both are a popular choice for modern homes, offering more natural light and a stronger link to your outdoor space. But the right choice depends on how...
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