Whether you have a growing family, work from home, or simply want larger spaces to cook, entertain, or relax, house extensions provide an ideal solution. Adding a custom-designed extension allows you to have more spacious and functional living areas in a way that flows seamlessly with your existing layout.

At Cube Installations, we specialise in building house extensions in Essex and surrounding areas, completely tailored to each home, lifestyle and budget. From small conservatories to double-height extensions, our team has the experience to construct your perfect new living space.

If you have unused attic space, we can conduct a thorough assessment regarding conversion into an extra bedroom, office, or storage area. We utilise 3D visualisation software so you can fully envisage how light, storage, seating and other practicalities come together.

Our full-service process makes expanding your home simple, from gaining planning approvals to using high-grade construction materials that stand the test of time. We handle everything from start to finish, keeping disruption minimal while crafting extensions that feel like part of the original home. Investing in a custom house extension returns enjoyment for years while making your Essex property uniquely yours.

Homeowners choose us because we maximise longevity and resale value while improving functionality. If you’ve outgrown your current space, contact us to explore expansion options suited to your needs. We’ll answer all questions during a no-obligation consultation and provide transparent quotes with no hidden costs.

Colchester House Renovation - Cube Installations

Clear Plan

We’ll outline exactly what we recommend for your start-to-finish plan, what we’ll do to get there and what the finished outcome will be.

bath installation

Beautiful Designs

No matter what vision you have in mind, our trade professionals deliver all types of small and large home extensions.

Whether you want to create a new bedroom, gym or office, all of our stunning extensions are completely catered to your needs.

Home Extensions Essex - Cube Installations

Professionally Finished

We are committed to providing you with the highest of standards when installing your new home extension.

Our company provides a complete service to clients, including design, ordering, supply and installation; as well as everything in-between, from building works, electrics and plumbing to plastering and tiling.

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Kitchen Installation Service Essex - Cube Installations


Home extensions bring a whole host of benefits, from much-needed extra living space to increased property value. As a leading contractor, we are able to assist you right from design to completion with a bespoke management package.

We guarantee to maximise your home space to the highest quality standard!

  • All of our works are project managed
  • Reliable, friendly and always on time!
  • Competitively priced and quality services
  • Multi trade professionals and experienced contractors
  • Covering Essex, Suffolk and surrounding areas