Would you like to transform your home with a Modular Designs home extension using the most advanced, energy-efficient building system available, to create a comfortable and affordable living space?

Our SIP panels are the future of home extensions and are fabricated off site and then delivered and erected within two to three weeks, avoiding the chaos and upheaval of having builders on site for months on end.

A well-constructed home extension from Modular Designs is a great way of increasing your living space by adding both a beautiful room and value to your property. Available in a variety of styles and finishes, our extensions are individually tailored to suit your needs. By combining SIP panels with the OUR Roof System, you can truly revitalise your home, creating a beautiful, elegant working, relaxing or entertaining space.

Being of modular construction, these extensions come with insulated roof and walls, double-glazed windows and strong, steel-reinforced structures, and are an affordable alternative to a traditional brick-built structures. We can match your existing brick, render or stone walls as well as the roof tiles, so the completed room matches the rest of your house.

We can also construct contemporary extensions to create that real WOW factor, incorporating other state-of-the-art innovations such as insulated bifold doors and lantern roofs.

What our clients say

Howard and his team go above and beyond to provide a personal service and a high quality product and finish.

Cheryl Lever

We were looking for a purpose built garden gym for me and my teenage sons, and a yoga space for my wife. The room sits 30 metres from the back of our house and is very complementary to the garden … … we now have a room that all the family use.

Joerg Stuebler

We’ve used Howard back in 2013 for bespoke fitted furniture and chose to commission him again after completing an extension recently as he works closely with you from design to build and always ensures the job is completed to a quality finish.

Jonathan Foo

I was introduced to Howard Klein at Modular Designs and took his advice on what would be the most efficient and comfortable solution. A garden room seemed the perfect solution.

Sean Jowell