Professional house extensions in Colchester. We design and build rear, side and double-storey extensions with full project management and clear, itemised pricing.
A well-planned house extension is one of the best ways to improve your home without the stress of moving. At Colchester Builders, we create high-quality extensions that add space, comfort and long-term value. Whether you’re dreaming of an open-plan kitchen, an extra bedroom or a bright family living area, our team will design and build a space tailored to your lifestyle.
We handle everything — foundations, structural work, insulation, glazing, electrics, plumbing and finishing — ensuring a smooth process from start to finish.
Home Extension
Perfect for modern kitchen-diners and open-plan living spaces.
Ideal for utility rooms, storage areas or expanding ground-floor layouts.
Add bedrooms, bathrooms or home offices while improving overall property value.
Transform your entire ground floor with total design flexibility.
We work throughout Colchester, Lexden, Stanway, Highwoods, Wivenhoe, West Bergholt, Tiptree and surrounding areas.
Create a warm, fully insulated garden room ideal for working, relaxing or exercising all year round. We design and build stylish outdoor offices, gyms and studios using high-quality materials and modern construction techniques. Quick to install and built to last, a garden room is one of the most effective ways to add extra usable space to your Basildon home.
Transform your unused attic into a bright and practical new living space. Whether you need an extra bedroom, home office or ensuite, our loft conversions include all structural work, insulation, electrics and finishing. We build Dormer, Velux and hip-to-gable conversions designed to maximise light, comfort and property value.
Expand your home with a beautifully built single-storey, double-storey or wraparound extension. From open-plan kitchens to larger living areas and additional bedrooms, we manage the entire process — foundations, structure, roofing, glazing and finishing. Our extensions are designed for long-term durability and seamless integration with your existing property.