With over 25 years of experience, JNA Developments London Ltd specialise in providing loft conversions, house extensions and major building structural alteration work. Since the business was established, we have tried to maintain a fresh approach to building services, liaising with the customer throughout the whole process to create exactly what they want. Our team of knowledgeable builders strive to provide the highest quality work, offering our expert knowledge and advice to suggest ideas that would work best for your project. For your peace of mind, all the work we carry out is fully insured and guaranteed. Would you like to find out more about our services? Speak with a member of our team today.