Some of our top rated extension builders in High Holborn, East London
Sort by:
- Get in touch
Jonay Building Services LTD has been a consistent and trustworthy Construction Company in North London since 2004.We operate all over London and surrounding areas. J.B.S undertakes a great range of works for a huge variety of clients; From residential extensions, loft conversions and renovations, to commercial landscaping and shop fitting. Whatever your project we have a solution for you.
- Get in touch
My name is Przemek. I'm working in the construction branch for 20years. EXPERIENCE: *LOFT CONVERSIONS, *RENOVATIONS, *EXTENSIONS, *PLUMBING & HEATING SYSTEMS, *REWIRING & ELECTRICAL SYSTEMS, *FITTING KITCHEN & BATHROOMS, *TILING, *PAINTING & DECORATING, *PLUMBING & ELECTRICAL CERTIFICATE.
- Get in touch
Arisa Renovation LTD is a reliable and experienced building company based in London, offering a full range of high-quality renovation and construction services. We specialise in complete property refurbishments, including house renovations, extensions, and loft conversions. Our services cover all aspects of building work such as painting & decorating, bathroom and kitchen installations, carpentry, flooring, tiling, plastering, and general maintenance. We have extensive experience in structural work, including roofing, framing, and full property transformations from start to finish. Whether it’s modernising an interior space, installing a new bathroom, building bespoke stairs, or completing a full renovation project, we deliver excellent craftsmanship with great attention to detail. We pride ourselves on being professional, punctual, and tidy on every job. All work is completed to a high standard, on time, and within budget. Customer satisfaction is our top priority, and we maintain clear communication throughout every stage of the project. We also offer a workmanship guarantee to give our clients peace of mind. If you are looking for a trustworthy and skilled builder in London, Arisa Renovation LTD is here to help bring your project to lif
- Get in touch
We believe your home should evolve with your lifestyle. Whether you're expanding your living space with a loft extension or completely renovating your property, we turn your ideas into reality.
- Get in touch
Based in London, at Project Rams, we deliver comprehensive building and construction services, covering everything from high-end new builds and extensions to luxury interiors and bespoke finishes. We don’t just get the job done — we build with precision, style, and care. Every project is handled with a keen eye for detail, clean workmanship, and a calm, professional approach. What we offer: • Full building services from start to finish • Stylish, high-spec finishes • A respectful, tidy, and fully insured team • Clear communication and no hidden surprises We understand that inviting builders into your home is a big decision. That’s why we’re committed to making the process smooth, transparent, and stress-free. Most of our work comes through referrals and repeat clients, which reflects our dedication to quality and trust. We treat every home as if it were our own — with care, respect, and attention to detail. If you’re looking for a team that takes pride in delivering high-quality craftsmanship with finesse, shortlist us today and let’s have a chat.
- Get in touch
We are a small company of 5 people (with more than 15-20 years of experience each) having 2 vans carrying all the tools needed. We can provide you with any services from kitchen / bathroom fitting , to full house renovations and extension builds.
- Get in touch
Founded in Twickenham by lifelong friends Alex and Steven, Constructum Contracts Ltd has been delivering high-quality construction and bespoke craftsmanship across Surrey and South West London since 2024. Our combined expertise spans building surveying, project management, general construction and high-end bespoke carpentry — giving clients the confidence of both technical knowledge and practical experience on every project. Steven began his career after earning a Diploma in Construction from Richmond College, working for a respected local builder specialising in loft conversions, extensions and residential renovations throughout the Richmond upon Thames area. While gaining hands-on site experience, he completed a BSc in Building Surveying at Nottingham Trent University. Following graduation, Steven worked for a multi-disciplinary building consultancy in London as a Building Surveyor, Contract Administrator and Project Manager. His portfolio ranged from residential apartment blocks to commercial properties, with particular expertise in the preservation and restoration of historic buildings in Central London. Most recently, he worked in Australia as a private Building Control Surveyor on new-build developments, before returning to the UK to bring his technical knowledge and project leadership back to clients in SW London and Surrey. Alex also began his studies at Richmond College, developing a strong trade foundation in carpentry. Coming from a family of plumbers and electricians, he was immersed in the construction industry from an early age. Over the years, he has refined his skills across multiple trades, including plumbing, electrical works, bespoke cabinetry and kitchen installations. With a particular focus on high-end bespoke carpentry, Alex has worked alongside some of Surrey’s leading cabinetry, wardrobe and kitchen installation companies. He now brings that craftsmanship and attention to detail to every Constructum project. At Constructum Contracts Ltd, we combine professional oversight with skilled workmanship. Whether you require building surveying services, structural alterations, extensions, renovations or bespoke carpentry, we pride ourselves on reliability, transparency and delivering exceptional results with the highest standards of workmanship. We look forward to seeing how we can assist with your project.
- Get in touch
At Roman Renovation Service we are a London based team of professionals providing painting, renovation and property maintenance services to your property (residential or commercial). With a combined team of 5+ years of experience in this speciality and outstanding customer service, we are here to support your needs with great care and attention. We will go above and beyond to make sure the job is done right to your satisfaction! We are able to provide a fast and free quote in person, our professionals are able to visit your property on short notice to provide a free of charge quote in person and advice. We look forward to hearing from you!
- Get in touch
There is father and son business. We do most bricklaying, Extension, garden walls, renovations and home improvements. Experience 15 years. We are reliable and professionals on our job. Happy to give an estimate.
- Get in touch
We are a construction company that operates in the local area mostly, but we can also cover all the other areas of Greater London. Our Services include Extensions, Loft Conversions, Refurbishments, and basically all the aspects of building work. We specialise in residential and business projects.
- Get in touch
West-1 Service Group is a London-based contractor providing reliable building maintenance, refurbishment and property repair services. We support homeowners, landlords, property managers and commercial clients with a range of works including building fabric repairs, refurbishment projects, fire door compliance, waste clearance and general property maintenance. Our focus is simple – clear communication, reliable service and work carried out to a high standard. We take pride in delivering practical solutions and maintaining safe, well-kept properties. Whether it’s a small repair, planned maintenance or a larger refurbishment project, we approach every job with professionalism and attention to detail. We are always happy to discuss new projects and provide straightforward advice where needed.
- Get in touch
My name is Alex, I work in construction field for more then 13 years. My experience start with my first job, I have experience from big construction sites, indoors jobs, building houses, small jobs as painting, plastering, changind windows etc. I take on lots of different type's of job. Bricklaying, paving, garden jobs, rendering, decking, concrete slabs, plastering, plasterboard, painting decorating, tiles, floors, hang/ fix doors, wallpaper, etc. It varies from small to big jobs.
- Get in touch
Hello, I'm florin and welcome to my profile! I've been working in construction and building for the past 15 years, and have made all my customers happy, completing work to a high standard very efficiently. I'm available to talk anytime if you are interested to take a hard working person like me. Don't hesitate to contact!
- Get in touch
We provide complete building solutions on both Residential and Commercial sites and smaller domestic builds. Our valuable experience is shown in all aspects of our work.
- Get in touch
Haynes Building Services are a trusted and professional company providing a full building service dedicated to the highest standards in every aspect of performance with over 30 years experience. We maintain a high level of repeat business through our ability to respond efficiently to clients wishes.
