Home Extensions Chelmsford
If you’re looking to improve your home with extra space, better functionality, and a modern look, Cube Installations is here to help. We are specialists in house extensions in Essex, creating bespoke designs that are tailored to your lifestyle and add real value to your property. Whether it’s a luxury home extension or a simple extra room, we make the process easy and stress-free.
By extending your home, you can stay in the property you love while upgrading its layout to suit your needs. Whether it’s adding a new kitchen, bathroom, office, or an extra bedroom, an extension gives you the flexibility to create a home that works for you.
Well-designed
Home Extensions
A well-designed extension enhances your home’s functionality and adds value to your property whether you are extending up or out, it allows you to make the most of your existing home without the hassle and expense of moving.
With thoughtful planning, an extension can seamlessly integrate with your current layout, creating a more spacious and comfortable living environment. At Cube Installations, we specialise in home extensions across Colchester and Essex.

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Well-designed
Home Extensions
A well-designed extension enhances your home’s functionality and adds value to your property whether you are extending up or out, it allows you to make the most of your existing home without the hassle and expense of moving.
With thoughtful planning, an extension can seamlessly integrate with your current layout, creating a more spacious and comfortable living environment. At Cube Installations, we specialise in home extensions across Colchester and Essex.






Tailored Approach with a
Hands On Design Service

From consultation to completion, we focus on delivering your project on time and within budget. With clear communication and attention to detail, we ensure a hassle-free process and exceptional results.

As experienced Essex builders, we understand the unique needs of local homes. Our commitment to quality and customer satisfaction has made us a trusted choice in the community.

Fully certified and compliant with all regulations, we guarantee safe, durable, and high-quality extensions. Our skilled team delivers results you can rely on for years to come.

Our trade professionals deliver all types of small and large home extensions, whether you want a new bedroom, gym, or office. Each extension is tailored to your needs.

We are committed to the highest standards when installing your new home extension. Our service includes design, ordering, supply, and installation, as well as building works, electrics, plumbing, plastering, and tiling.


What Types of Home Extensions Can You Choose?
The type of home extension you choose depends on your space, budget, and how you plan to use it. A single-storey extension is perfect if you want to expand your kitchen, dining area, or living room on the ground floor. Need more bedrooms or a larger bathroom? A double-storey extension adds space upstairs and downstairs, giving you room to grow without moving.
If you have space at the back and side of your property, a wrap-around extension combines both, creating a large open-plan area ideal for modern living. Rear extensions are great for making the most of your garden, adding bright and airy rooms with big windows or doors to connect indoor and outdoor spaces.
Looking for something specific? A home office extension is a practical choice if you work from home and need a quiet, functional workspace. Whatever your needs, we’ll help you find the perfect solution that works for you and your home. Beyond construction, we also take care of the essentials, including electrical work, plumbing and heating.
Planning Permission Simplified
Our Process: From Concept to Completion
Our approach to home extensions in Chelmsford is straightforward and designed with you in mind. It starts with an initial consultation, where we listen to your ideas and needs while working within your budget to create a clear plan. Next, our design team creates a detailed layout that makes the most of your space and natural light, handling any necessary planning permissions along the way.
During construction, our builders work efficiently and carefully to minimise disruption, ensuring every detail is completed to a high standard. Once the project is finished, we’ll walk you through the space to ensure it meets your expectations and is exactly what you envisioned.
Frequently Asked Questions
How Long Does a Home Extension Take?
The timeline depends on the size and complexity of the project. On average, a single-storey extension can take 8–12 weeks, while larger projects like double-storey extensions may take longer.
How Much Will It Cost?
Costs vary based on the size, type, and materials used. Single-storey extensions tend to be more affordable, while luxury designs or double-storey extensions can increase the budget. We provide transparent quotes so you know exactly what to expect.
Can the Extension Match My Existing Home?
Yes! We use materials and designs that complement your existing home. Whether it’s matching brickwork or creating a seamless interior flow, we ensure the extension feels like part of the original house.
Will an Extension Add Value to My Home?
Absolutely. A well-designed extension can boost your home’s market value significantly. It’s an investment that pays off whether you’re planning to sell or stay long-term.
Do I need an architect for my home extension?
While not always necessary, hiring an architect can help ensure that your extension is well-designed, functional, and blends seamlessly with your existing home.
Can all homes be extended?
Most homes can be extended, but factors like plot size, structural limitations, and planning permissions will determine the feasibility of your project.
What materials can be used for a home extension?
Extensions can be built using a variety of materials, including bricks, timber, glass, or steel. The choice depends on your design preferences, budget, and the need to match existing structures.