Expert House Extensions in London

A well-designed house extension is one of the best investments you can make in your London property. Whether you need more living space, a larger kitchen, an extra bedroom, or a home office, a house extension allows you to stay in the home you love while adding significant value and functionality.

At Fellner Construction, we've been building high-quality house extensions across London for over 15 years. Our team of expert builders, designers, and project managers work closely with you from concept to completion, ensuring your extension is delivered on time, on budget, and to the highest standards.