What is CosyRoom?
CosyRoom is an extension, conservatory or orangery built using an innovative insulated walling system instead of conventional brickwork. These walls are made from interlocking lightweight, thermally efficient insulated panels that are 68% stronger than traditional brick and block. Thanks to their lightweight design, an Anglian CosyRoom can be installed on existing foundations, eliminating the costly process of replacing them. Fully compliant with building regulations, they have a huge range of customisations to create a new space that’s all your own.
Reasons to Choose CosyRoom
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Fast, Hassle-Free Installation
CosyRoom living spaces can be installed up to five times faster than a traditional brick structures. Thanks to precision engineering, prefabricated walls and rapid install technology, your new space can be completed in just a few days – even in poor weather.
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Energy Efficient
CosyRoom walls are up to five times more energy efficient than traditional walls in UK homes. This means your new living space is comfortable throughout the year, helping to reduce overall heating bills in the winter and keep cooler in summer.
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Space
Thanks to their lightweight design, CosyRoom walls are over 25% slimmer than brick and block walls. This adds up to 15% more usable floor space, giving you much more space and a lot more design flexibility to make your new extension something truly unique.
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Sustainable & Eco-Friendly
The CosyRoom wall system is 60% more carbon efficient than traditional brick walls with zero on-site production waste, meaning less mess and debris too. We pride ourselves on our commitment to combine planet-friendly practices with high-quality products in every project.
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High Quality and Long-lasting Value
CosyRoom is built to last and designed to perform. Independently accredited by the BBA (British Board of Agrement) for quality, strength, stability, moisture resistance and fire resistance. They also exceed Building Regulation standards for thermal insulation, retaining more heat in winter and keeping cool in winter. Carrying a 10-year guarantee on all parts and labour, as well as a 15-year guarantee on glazing units.
CosyRoom Window, Door & Roof Options
Choose the perfect windows and doors for your new modular extension. We also offer a wide range of roof options including glass and tile as well as orangery roof lanterns.
Window Options
Our whole window range is available with CosyRoom, so you can choose the perfect windows to compliment your new space. Add modern tilt & turn windows for more ventilation flexibility, or flush casement windows for a sharp, stylish look.
Doors Options
Connect your extension to your garden in style with a range of door options to choose from. Create an airy indoor-outdoor feel with aluminium bifold doors or add timeless style with some classic French doors.
Roof Options
Our CosyRoom is available with our full range of roof options. Choose a between glass, polycarbonate, or solid roofs like lead effect panels or replica tiles. Opt for an orangery with a roof lantern, or customise your replica tiles to match your home.
5 Steps to Your CosyRoom
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Step 1Home or Virtual Visit
Your local design expert talks you through the options and provides a free quotation.
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Step 2Technical Survey
Our technical surveyor visits your home to measure-up and check your order.
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Step 3Planning Permission Checks
Our team provide a detailed drawing of your CosyRoom and take care of any planning permission or building regulations.
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Step 4UK Manufacture
Your CosyRoom is made to measure right here in the UK.
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Step 5Easy Installation
Our team arrange a convenient time to fit your new CosyRoom.
Do I Need Planning Permission for CosyRoom?
In many cases, you won’t need planning permission as an Anglian CosyRoom is usually classed as a permitted development. However, if your design is larger than the usual limits or your home is in a protected area, planning permission may be required. If that’s the case, don’t worry, we guide you through the process and handle any necessary applications, making it simple and stress-free. To discover more, head over to our helpful planning permission guide.
Hear it From Anglian Customers
Choose Anglian for a National Company Local to you
10-year Guarantee
A 10-year parts and labour guarantee is included in your Anglian double glazing price.
Made in Britain
Our products are made from start to finish in a British factory by skilled craftspeople.
Price Match
If you find cheaper like for like uPVC windows elsewhere, we'll match the price.
See Our CosyRoom on Real UK Homes
Instant Expert Advice
LiveChat 9am to 6pm Mon-Sun with our British based experts to discuss how we can help.
Decide if a CosyRoom Extension is Right for Your Home
Will a conservatory add value to your home?
It's the question on everyone's mind - conservatories add extra space to your home, but can they also add value? We're here with expert advice.
Find out more
Choosing your Conservatory Roof Style
Whether you're replacing your existing conservatory roof or starting from scratch, we've got you covered with our range of thermally-efficient conservatory roofing options.
Find out more
What’s the difference between a Conservatory, Orangery or Extension?
Our handy guide breaks down the difference between conservatories, orangeries and extensions to help you make the right choice for your home.
Find out moreCosyRoom FAQs
A modular extension is any type of extension, orangery or conservatory built using non-traditional building methods. These prefabricated wall systems are manufactured off site and assembled on site in a much less time consuming way with less mess and hassle for you.
The short answer is yes, you can get a mortgage on a house with a modular extension. As with any extension however, it would need to have been created following all planning rules and building regulations. Our CosyRoom living spaces are fully certified and follow all building regulations. IF you do require any planning permission, then we take care of the whole process for you.
Prefab extensions are manufactured by lots of different companies, and their lifespans vary. Our CosyRoom extensions are certified to last a minimum of 60 years. This makes them a great long term investment for your home. We offer a 10-year guarantee on parts and labour for our CosyRoom extensions, as well as a host of other guarantees on your windows and doors.
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Our Accreditations and Licenses
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The British Board of Agrement provides certification on the quality of our products. -
Anglian’s PVC-U Casement and Tilt & Turn windows have enhanced security performance. -
The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows. -
The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales. -
Look for our FSC® certified wooden window and door products on our website. -
Anglian is a leading member of the Glass and Glazing Federation (GGF). -
PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices -
TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.