Castle Conservatories

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Modern Extensions Banstead

Update your Banstead home with a modern extension. Our installations are an exceptional improvement to both domestic and commercial properties. The builds offer a plethora of practical benefits for homeowners. They are incredibly secure, thermally efficient, weatherproof and durable.

Each modern extension is tailor-made to ensure customers are happy with the finished look. We offer a range of customisation options including windows, doors, colours and hardware. Each extension is made to seamlessly fit your outdoor area and can perfectly match your Banstead property.

Here at Castle Conservatories, we use leading suppliers who offer superior materials for our modern house extensions. Our fitters are all trained to the highest standard, ensuring an efficient and professional service is carried out.

Benefits of Modern Extensions

Energy Efficient

We use high-performance double glazing as standard in our modern extensions. This works by trapping a pocket of warm air in between the panes. YOur central heating will stay circulating your home, as the glass prevents heat loss. This is a superb technological advancement on single pane systems, which let air escape.

Each extension is fitted with a perimeter pelmet and insulating columns. These will preserve heat, keeping the room at a comfortable temperature all year round. The materials also work to prevent an excess of heat in warmer months. Save on your energy bills with our fantastic modern extensions.


Our high-quality modern extensions are made to endure the most extreme conditions. The multi-chambered profile will stop water damage and will prevent the occurrence of water ingress. Additionally, the weather seals will keep draughts at bay. With an exceptional combination of high-quality materials, you won’t have to worry about deterioration over time.

You can relax in your room without the need for repair. To keep the modern extensions looking just-like-new, maintenance is simple. Just clean the moveable elements including the handles and hinges with a damp cloth every so often.  This makes modern extensions the perfect solution for busier households.


We go the extra mile when it comes to the safety of our customers. The windows and doors are fitted with high-quality locking systems. The multi-point mechanisms are incredibly secure, test to prevent forced entry. This will give you total reassurance in our products.

Double glazing acts as a fantastic security feature. The glass is internally beaded, fitted on the inside of the frame to prevent exterior removal. This ensures your modern extension cannot be broken into. Have peace of mind that our installations will keep you protected.

Modern Conservatories

This modern extension style is a superb upgrade to your Banstead home. It is designed to offer exceptional functionality as well as increase market appeal. The spacious room is perfect as a relaxing space, a room to entertain or even as a study. Add value to your Banstead property with this style of modern extension.

Modern conservatories let natural daylight stream into your home. Not only will this result in less need for your electricity, but it will give the impression of a wider living space. Enjoy a sophisticated, versatile new room with a contemporary appearance. Make a worthwhile investment in our products.

Modern Orangeries

Orangeries are a popular modern extension style. They are recognised by their brickwork, which differs from the appearance of conservatories. The walls offer more privacy than conservatories, yet allow light to brighten the room. We have a choice of customisation options for this modern extension.

Our orangeries can be fitted with solid, tiled or lantern roofs. These elegant roofing systems each bring a unique look and a variety of practical benefits. Orangeries are secure, thermally efficient and are made to withstand strong winds and rain. This modern extension will seamlessly fit both contemporary and traditional properties.

Why Choose Castle Conservatories?

Here at Castle Conservatories, we are specialists in the double glazing industry. For your reassurance, we are proud to offer a 10-year insurance backed guarantee. We are happy to give advice throughout the process, but leave all of the design decisions down to you. We are with you every step of the way.

With over 25 years of industry experience, we have built up our skills to ensure each customer receives a professional, efficient service. We work closely with each Banstead customer to bring your ideas to life. Get started on your next home improvement today.


Modern Extension Prices Banstead

We make every modern extension to your tastes so you can improve your Banstead home. As each customer differs in their specifications, prices can vary between each project.

Get an instant modern extensions price today. Use our free quoting tool and choose your design choices and specifications. We will get back to you with a no-obligation quote.

Ask us anything via our online contact page. We’re happy to answer any queries you may have. If you want to speak to one of us directly, give our office a call on 020 8669 1500, and we’ll do our best to help!

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