extension with french doors liverpool

Single Storey Extensions

Building a single storey extension is a great way to create extra living space, and Celsius can help you build this to suit your lifestyle. Designing your single storey extension is the most important decision you will make and Celsius will guide and work with you to help you make the best decision.

Whether you are looking to create a bigger kitchen and dining area or simply create a new living space for your home you can trust Celsius to help design and guide you through the process of creating your dream extension.

Choosing a single storey extension will be a great way to flood your interior with natural light so whether you want to add roof lanterns or bi-fold doors Celsius can provide with everything that you need.

Planning Permission & Building Regulations

With any extension to your home you will need to look at the planning permission and building regulations for the proposed development. Celsius can ensure all of the requirements are met without you having to worry about any of these arrangments:

For more information on planning permission and building regulations for extensions, conservatories or orangeries please click here

Want a Celsius Building Extension? Call 0151 545 1400



When extending your home you are likely to require planning permission and the extension must adhere to building regulations. Celsius have experience of handling this process for you from start to finish.


Creating more space in your home whether that is an extra bedroom or living space or maybe a home office, will also increase the value of your property and in many cases can be much more efficient than the costs of moving.


Every extension we create is built to your exact specification. From the initial designs from our expert design team to the finished project you can be sure that Celsius will help you design the extension of your dreams.


All the products used on our extensions such as windows and doors come with the Secured by Design accreditation and are manufactured to be the most secure products available on the market today.


Our no quibble 10 year guarantees you for a faultlessly 10 year peroid. Every product that leaves our factory comes with a unique serial number that guarantees the windows & doors at the property for the full term of the guarantee.


Every expert tradesman that comes to work on your property are directly employed by Celsius Home Improvements, giving you total peace of mind that no-subcontractors are being used.


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