
At Builder Brothers, we specialise in delivering exceptional house extension solutions tailored to the luxurious standards of London. Our expertise in both modern and traditional construction methods ensures that every extension project achieves the perfect blend of functionality, elegance, and comfort.
Rear Extensions
Expand your living space with beautifully crafted rear extensions, designed to enhance your home's flow and usability.
Side Return Extensions
Maximise your property's potential with stylish side return extensions, blending practicality with elegant design.
Wraparound Extensions
Create expansive, open-plan spaces with bespoke wraparound extensions that seamlessly integrate with your home's character.










Why Choose Builder Brothers for House Extensions?
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Local Expertise: We have in-depth knowledge of local planning permissions, building regulations, and architectural styles, ensuring your extension project runs smoothly from start to finish.
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Premium Materials: We use only high-quality materials and trusted suppliers to deliver house extensions that are both beautiful and built to last.
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Proven Track Record: Our extensive portfolio and glowing client testimonials demonstrate our commitment to outstanding workmanship, reliable delivery, and customer satisfaction.
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Attention to Detail: From structural precision to fine interior finishes, we focus on every detail to create extensions that seamlessly enhance and expand your existing home.
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Areas We Cover:
Westminster (W1, SW1) · Mayfair & Marylebone (W1) · Paddington & Bayswater (W2) · Notting Hill & Holland Park (W11, W8) · Kensington & Chelsea (W8, SW3, SW10) · Knightsbridge (SW1X) · Hammersmith & Fulham (W6, SW6) · Shepherd’s Bush & White City (W12) · Chiswick & Acton (W4, W3) · Ealing & West Ealing (W5) · Hounslow & Brentford (TW3, TW8) · Richmond & Twickenham (TW9, TW1) · Wimbledon & Putney (SW19, SW15) · Wandsworth & Battersea (SW18, SW11)