Energy Efficiency
Our extensions are designed with energy efficiency in mind, using the latest glazing technology and high-performance insulation. These extensions can achieve impressive U-values, with roofs as low as 0.15 W/m²K and high-quality glazing around 1.0–1.2 W/m²K, helping to keep your space warm, comfortable and energy efficient all year round.
Weather Resistant
Our extensions are fully weatherproof and engineered specifically for your postcode, using high-performance components that are designed to withstand local wind loads and the unpredictable British weather. Built for long-term strength, durability and reliability, they provide excellent protection against the elements while helping to keep your new living space warm, dry and comfortable throughout the year.
Expert Installation
Coral’s team of skilled professionals, all local to the Yorkshire area, are committed to delivering the highest standard of workmanship on every project. With years of experience and meticulous attention to detail, they ensure every extension is completed to an exceptional finish. From the initial groundwork through to the final installation, you can rely on our expert team to provide quality craftsmanship and outstanding customer service every step of the way.
Flexible Finance Options
At Coral Windows, we never ask for a deposit on a home extension, and we don’t take stage payments, regardless of the size or cost of your project. You won’t pay anything upfront or during the build. Instead, you only pay once your extension has been fully completed to your satisfaction, giving you complete confidence and peace of mind from start to finish.
House Extensions in Yorkshire
At Coral, we understand that a house extension is not just an additional room, it’s a part of your Yorkshire home. It’s where future memories will be made and a space where your family can grow. Our commitment to exceptional quality and customer service ensures that we understand your vision down to the last detail.
From the initial design consultation through to the final installation, our expert team works with you every step of the way to make sure your new extension meets your exact requirements. Whether you dream of a spacious kitchen diner for family meals, a sunny garden room, or a serene living area, Coral makes your expansion plans in Yorkshire a reality.
Home Extension Specifications
Our house extensions are built to your precise specifications, combining durable materials, advanced insulation, robust roofing systems and tailored design features to create a comfortable, long-lasting space for your home.
Coral Home Extension Features & Benefits
Discover the features and benefits of our house extensions, designed to maximise your space and add lasting value to your home.
See what our customers say about us
With thousands of installations completed, our reputation is built on happy customers. Explore their stories and discover why Coral is trusted for quality, service, and lasting value.
Frequently Asked Questions
Where is a house extension used?
A house extension is used to add extra space to your home without the need to move. It can be built at the rear, side, front or even over an existing part of the property, and is often used to create larger kitchens, extra living areas, home offices, bedrooms or open-plan spaces.
What are the benefits of a house extension?
Do I need planning permission for a house extension?
Are my house extensions energy efficient?
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