Some of our top rated loft conversion companies in Westminster
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We’re a highly professional team with over 20 years’ experience in extensions, loft conversions, high-end renovations, new builds, and property conversions. We deliver top-quality work on time and within budget. Our rates are among the most competitive in the UK at £180 per day per man + 10% OHP. With all specialist trades under one umbrella, we can handle projects of any size smoothly—from £20k up to £2m. Happy to discuss your project further
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Our company specialises in the design and installation of custom and high-quality loft conversions and house extensions across London and the M25. While offering a personalised service, we bring the skills and experience required to ensure your loft conversion is completed to the highest standard and agreed timeline. Whether you are looking to add value to your property or create more space, our team will handle everything from planning permission to architectural design and construction
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Independent family business taking pride on our reputation for a unique combination of workmanship and service regardless of the size of project. My team and I are customer-oriented providing you with quality products built to your exact specifications in the specified time period. We provide a personalised service that involves you in all design and planning.
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We are a dedicated construction and renovation company delivering high-quality work across residential and commercial projects. From small repairs to full-scale builds, we handle every stage with precision, reliability, and attention to detail. Our goal is simple: to bring your vision to life on time, on budget, and to the highest standard.
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Extensions, loft conversions and renovations — carefully planned, clearly priced and built with attention to detail. Hi, I’m Calvin from iBuilder Service Ltd. We bring practical building and renovation experience from UK, helping homeowners create more space, improve their layout and make their homes work better for everyday life. You should know what you’re paying for, what happens next and who to speak to. That’s how we approach every project. • Thoughtful advice: We review your ideas, drawings and existing property, explain practical options and highlight details that could affect the cost or programme. • Clear quotations: We set out the work, inclusions, exclusions and material allowances so you can make an informed decision. • Organised work and communication: We agree the sequence of work, keep you updated and plan around access, deliveries and disruption to your home. Any additional work and its cost are discussed for your approval before proceeding. • Care through to completion: We pay attention to the finishing details and review the completed work with you, including any agreed snagging. Our services include extensions, loft conversions, home refurbishments, kitchens, bathrooms and property repairs. Full building packages and labour-only work can be discussed to suit your project. Send us your plans, photos or ideas. We’ll help you understand the options and establish a clear next step.
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3D building home is a family run building and construction business operating in London and the surrounding areas. The company initially focused on high quality decorative works we have evolved a great deal since then. We aspire to provide a quality stress free service, working together with you, architects and structural specialists to bring together your envisioned dream home.
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Our Experience: At Avalon, our team brings over three decades of expertise in construction and interior design. We’ve successfully delivered a wide array of projects, from comprehensive home renovations to tailored interior design solutions. Our portfolio reflects diverse styles and spaces, underscoring our commitment to quality and meticulous attention to detail. Where We Work: Based in London, we serve clients throughout the city and surrounding regions. Our team is adaptable and prepared to travel to bring your vision to fruition, ensuring convenience and accessibility for all our clients. Our Special Skills: • Comprehensive Trade Expertise: Our seasoned professionals are adept in various trades, including painting, decorating, joinery, plumbing, and electrical work, ensuring seamless project execution• Interior Design Proficiency: Our skilled interior designers collaborate closely with you to create spaces that are both visually appealing and practical. • Efficient Project Management: We recognize the significance of adhering to timelines and strive to complete projects promptly without compromising on quality
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We are a London-based construction and renovation company with strong experience in both interior design and on-site construction delivery. We specialise in home refurbishments, extensions, loft conversions, and full internal fit-out works. What sets us apart is that we don’t just build — we design and plan interiors as part of the process, helping clients make the best use of their space in terms of layout, finishes, lighting, and functionality before work starts. We work across London and surrounding areas and manage projects from initial design coordination through to construction and final handover. Our skills include structural alterations, partitions, flooring, plastering, joinery, kitchens, bathrooms, lighting layouts, and full interior finishes. Clients choose us for our attention to detail, clear communication, and organised approach. Having both design and construction experience allows us to avoid mistakes, control costs, and deliver clean, high-quality results that match the agreed vision.
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TM Construction.ltd, established in 2007, is a trusted building company specialising in extensions, loft conversion,refurbishments, and general construction projects. With over 15 years of experience, the company is known for its high-quality workmanship, reliability, and customer-focused approach. From groundwork and structural works to finishing touches, TM Construction delivers complete building solutions on time and within budget.
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GDS BuildingLtd: A trusted and fully accredited interior decoration company based in London, specialising in delivering high-quality painting, decorating, and finishing services. With a commitment to precision, professionalism, and on-time project delivery, we are the ideal partner for subcontracting on larger-scale projects. Our team ensures flawless execution, tailored to your standards, and we’re fully insured to provide peace of mind. Let us add value and excellence to your projects.
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I'm high quality carpenter specialized in all kind carpentry works, from cut and pich roofs to high end kitchen works.
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I am a structural engineer and running a construction company since 8 years. We are doing all kind of building, construction works in London and nationwide. Have so many experience with domestic and commercial works, from small to big size work, projects.
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At Capable Renovations, other than providing top-notch roofing services, we deliver construction projects that exceed our clients' expectations. As a locally-owned and operated company, we take pride in our commitment to the community and our reputation for excellence. Our mission is simple: to deliver high-quality, reliable roofing solutions at competitive prices.
