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Early phase of extension walls being constructed

Grow your living space with expert extensions and conversions

Need a little extra room but don't want the hassle of relocating? J.B Viking Building Ltd helps clients utilise every inch of their existing space, leading transformations across Harlow, Loughton, Essex, Hertfordshire, and London. 

Bespoke designs for every project

Seamless integration with existing structures

Expert craftsmanship across all extension types

What will you do with your new space? 

Extensions and conversions are the perfect way to maximise your living space without the hassle of moving. Whether you’re dreaming of a larger kitchen, a new home office, or a stylish outbuilding, J.B Viking Building Ltd has the expertise to make it happen. From single-storey extensions to bespoke garage conversions, we bring your vision to life with precision and care. Our team works across Harlow, Loughton, Essex, Hertfordshire, and London, ensuring every project is tailored to your needs. With our commitment to quality and attention to detail, you can trust us to create a space that’s not only functional but also beautifully designed.

Wooden base laid for building extension

Time to go higher with our single and double storey extensions!

Building up by a single or double storey can be a great solution for those who are restricted by lack of horizontal space or do not wish to eat into the garden. Whilst both options will expand your living space, there are various factors that will determine which may be best for your property, and we're here to help you identify those. Listening to your goals, we'll walk you through the options, and even offer support in obtaining planning permission to ensure your expansion goes off without a hitch. 

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Need a different approach? 

Side return extensions: Ideal for those with side passages, this cost-effective approach sees us fill the gap between properties, a popular choice for those looking to maximise space without impacting the garden. This flexible design option is also great when adapting kitchens and other living spaces. 

Wrap-around extensions: This extension type wraps around two sides of the property (usually the sides and rear), creating an 'L' or 'U' shape.  This offers more flexibility when it comes to the extension, whilst enhancing light entry to your new and approved space.

A general interior view looking into a dining room from outside through Bi-fold patio door
New brick extension at side of house

Bespoke conversions 

Unfortunately, not everyone has the space to expand. In these cases, J.B Viking Building Ltd can help you optimise the floor space you already have, to help you get more from your property cost-effectively. A garage sitting accumulating rubbish, a dusty loft; we take these tired old spaces and give them a new lease of life. By doing so, we not only give you the space for the life you want, but could enhance the property's value. Serving Harlow, Loughton, Essex, Hertfordshire, and London, we’re committed to helping you create a home that’s as functional as it is beautiful.

Create the home of your dreams

Contact J.B Viking Building Ltd today to discuss your extension or conversion project and take the first step towards your dream home.

Contact us

48 Abbeydale Close
Harlow
CM17 9QB

Business hours

Mon-Fri: 08:00 - 18:00

Sat: 08:00 - 13:00

Sun: 08:00 - 13:00

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 J.B, VIKING BUILDING LIMITED, registered as a limited company in England and Wales under company number: 14707620.

Registered Company Address: 48 Abbeydale Close, Harlow, England, CM17 9QB

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