Business Details
27 Years
experience
Trusted Loft Conversions & Extensions in Surrey & London
Established in 1999, we have built an unrivalled reputation for award-winning loft conversions, extensions, and refurbishments. Our team combines over two decades of expertise in project management, design, and construction, serving both residential and commercial clients. We actively advise major UK corporations, leveraging our extensive industry knowledge to deliver tailored solutions. With a focus on client trust, we ensure financial security through transparent, dedicated project accounts and hold rigorous certifications like ISO 9001, CHAS, and SafeContractor.Our portfolio spans Surrey, South West London, and the Home Counties, supported by a 90% client recommendation rate and comprehensive 10-year guarantees. Our customer-first ethos ensures step-by-step guidance, from initial design to final execution, emphasizing innovation, sustainability, and quality craftsmanship.
Services
Loft Conversions
House Extensions
Eco Loft Conversions
Bathroom Design
Kitchen Extensions
Rear Dormer
Hip to Gable
Velux Conversions
Sustainable Construction
Project Management
Details
- Year established: 1999
Highlights and features
- We offer over 20 years of expertise in loft conversions and extensions.
- 90% of our clients recommend us to family and friends.
- All projects come with a 10-year company-backed guarantee.
- Certified under ISO 9001, CHAS, and SafeContractor standards.
- Secure payment process with funds held in dedicated project accounts.
Associations and certifications
- BOPAS
- CHAS
- Construction Line
- SafeContractor
- ISO 9001
What people say
Amazing work
Highly recommend
Smooth process
Excellent service
Professional team
Services
Loft Conversions
Our loft conversions transform unused space into functional, valuable areas tailored to your needs. We specialize in rear dormer, hip-to-gable, and Velux designs, incorporating eco-friendly options like solar panels and underfloor heating. With over 20 years of expertise, we ensure seamless project management, compliance with building regulations, and 10-year guarantees. Our team prioritizes minimal disruption, delivering high-quality results that enhance your home's aesthetics and energy efficiency.
House Extensions
From single-storey rear extensions to double-storey designs, we create bespoke solutions that align with your lifestyle and property architecture. Our in-house teams handle planning permissions and structural challenges, ensuring smooth execution. We integrate sustainable materials and techniques, focusing on maximizing space and natural light while adhering to strict quality standards and client budgets.
Eco Loft Conversions
Eco loft conversions reduce energy bills and environmental impact through advanced insulation, solar panels, and mechanical ventilation. Our designs optimize thermal efficiency and include features like rainwater harvesting and green roofs. Backed by industry certifications, we deliver sustainable solutions that meet modern building codes and future-proof your property without compromising on comfort or value.
Bathroom Design
We design and install bathrooms tailored to your space and preferences, combining functionality with modern aesthetics. Our services include plumbing, tiling, and custom fittings, ensuring a seamless finish. With attention to detail and accessibility, we create spaces that enhance usability and resale value, supported by our commitment to quality and client satisfaction.
Kitchen Extensions
Custom kitchen extensions expand your living space and improve home functionality. We offer full design-to-build services, integrating high-quality materials and appliances for durability and style. Our team ensures efficient layouts, compliance with regulations, and minimal disruption, transforming your kitchen into a vibrant, practical hub for family and social life.
People
Will
Project Manager
With extensive experience leading loft conversions, Will is known for his proactive problem-solving, attention to detail, and client-focused approach. He ensures projects are completed ahead of schedule while maintaining exceptional quality standards.
Rich
Team Leader
Rich specializes in managing complex builds, prioritizing clear communication and minimal disruption. His team is recognized for professionalism, punctuality, and delivering high-quality results that exceed client expectations.
Peter
Build Team Lead
Peter combines joinery expertise with a dedication to bespoke design, delivering custom wardrobes and living spaces. Clients praise his reliability, creativity, and ability to turn visions into reality.
Craig
Project Coordinator
Craig ensures project transparency and client satisfaction, offering guidance from planning to completion. His efficiency and responsiveness make him a trusted partner in every build process.
Malcolm
Construction Manager
Malcolm brings practical expertise to extensions, helping clients navigate design choices and overcome challenges. His hands-on approach ensures projects align with both vision and structural requirements.
Questions
What areas do you serve for loft conversions and extensions?
We operate across Surrey, South West London, the Home Counties, Hampshire, and Berkshire, including towns like Kingston, Windsor, and Richmond.
Do you offer eco-friendly building options?
Yes, we specialize in eco-loft conversions with solar panels, vacuum insulation, and rainwater harvesting to reduce energy costs and environmental impact.
What guarantees do you provide?
All projects include a comprehensive 10-year company-backed guarantee, ensuring long-term quality and client peace of mind.
How do you handle project payments and security?
Payments are held in dedicated project accounts, ensuring funds are used exclusively for your build with no hidden costs or financial risks.
Can I visit completed projects before starting my build?
Yes, we arrange visits to satisfied clients’ homes, allowing you to see our work firsthand and discuss their experiences.
How do you manage disruptions during construction?
Our teams prioritize cleanliness, punctuality, and clear communication, minimizing inconvenience while maintaining high standards of workmanship.
Reviews (6)
Stephen Price
Jan 23, 2019
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Our home refurbishment and extension are now complete and we are unbelievably happy with the final result. A1 realised our dream. We would recommend them without reservation. Having previously wasted hours and spent too much money with architects and potential builders, we were recommended to consider A1. From the very start, Steve Mills and Rikki-Lee understood our ideas and skilfully suggested possible additions to our project. A1 took control of everything from drawings, planning permission and build, allowing us to feel involved and reassured about our home development. The building team were
Sonya Marriott
Nov 28, 2018
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We recently used A1 for our rear extension and are extremely happy with the results. The builders and project managers were all very hard working and pleasant to work with. Any small problems that we had were very quickly resolved with no issue whatsoever. This is the second time that we have used A1 as their standard of work and efficiency was so good on our loft extension 7 years ago we were very keen to have them back again. Their original quotes for both extensions weren't the cheapest that we had but the quality and speed with which the work was done was well worth the money. I highly recommend
Maheen Mathew
Oct 20, 2018
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We engaged A1 to build a loft for us. The team they provided has been top notch. Darryl as team lead with his main man Peter makes a very good team. They were able to complete the entire project in under 7 weeks. This has been really impressive. Darryl was really good with communicating the various stages and very detail oriented. There were the usual challenges of coordination, but it was very effectively managed. I would also make a special note of how courteous the entire team has been. All in all very happy to recommend A1 and Darryl's team to anyone looking for building a loft.
David Coleman
Nov 16, 2017
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A1 have a very efficient process and are exceptionally clear at the outset about what's involved and what is and isn't covered in your contract. I would have liked more of an input into the design side, but it may be my fault for not pushing on this. Some ideas we put into the plans, the builders later told me couldn't be done, so we ended up with something a bit different to what I imagined at the outset. That said, the agreement of the contract, plans and getting the relevant consents was made very straightforward by A1. I was led to believe at the beginning that I contracted with A1 and they
Michelle Williams
Jun 23, 2017
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Our Project manager was Rich and he was excellent!! as were Vio and Alex, they were so respectful of our home for that I am so grateful. All concerned worked so hard over the 6 weeks and nothing was too much trouble. All the tradesman that were onsite over the 6 weeks were all pleasant, polite and respectful. We had a couple of issues but everything was dealt with in the most professional manner. The whole project from start to finish was handled by A1 and we were kept informed throughout the whole process.
Emma Pursey
Sep 01, 2014
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A1 built my loft in 2014 and it was a great experience from start to finish. The running of the project was excellent, the team leader was great and kept us informed throughout the build process. We were amazed at how straightforward the build was and how clean and tidy the house was left every day. Our new loft is fantastic and has added a whole new dynamic to our home. I would thoroughly recommend A1 for a hassle free build.
