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Extensions.

Home Extensions
in Surrey & West Sussex

At 5m2 Construction, we design and build high-quality house extensions for homeowners across Surrey and West Sussex. Whether you need extra room for family life, a larger kitchen, open-plan living space or a dedicated home office, we create extensions that feel like a natural part of your home.

From rear extensions and side returns to garden rooms and home offices, every project is carefully designed around the way you live, with a focus on practicality, build quality and long-term value.

Extension Services

  • Rear and side-return extensions
  • Kitchen and open-plan living extensions
  • Garden rooms and garden offices
  • Home office extensions
  • Design and build project coordination

How we Work

We take a measured, practical approach to every extension project, balancing good design with buildability, budget and the day-to-day realities of living through works. Our team focuses on clear communication, careful planning and high standards on site from start to finish.

By combining design thinking with hands-on construction experience, we deliver extensions that not only add space, but improve the way your home works and feels.

Start your Extension Project

If you are planning a house extension, garden room or home office in Surrey or West Sussex, get in touch to discuss your ideas and see how we can help bring them to life.

Get in Touch