Some of our top rated conversion specialists in Hampstead
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ONE COMPANY. ONE PROCESS. ONE POINT OF RESPONSIBILITY. Hi, I'm George Sora, Certified Passive House Designer and founder of RetrofitIQ powered by G.A.S General Building Services Ltd. My approach is different from traditional builders because every recommendation and every upgrade is based on proven Passive House Principles and building physics, not guesswork. Whether the problem is condensation, mould, damp, heat loss, air leakage, poor ventilation, uncomfortable rooms or excessive noise, I follow a structured process designed to identify and solve the root cause: INVESTIGATE → DIAGNOSE → DESIGN → REMEDIATE → VERIFY Using professional equipment including thermal imaging cameras, moisture meters, blower door airtightness testing, smoke tracing and ventilation assessments, I can identify hidden defects that are often missed during standard inspections. As a Certified Passive House Designer, I apply the five key Passive House Principles wherever appropriate: • Airtightness • High Performance Insulation • Thermal Bridge Reduction • High Performance Windows & Doors • Controlled Ventilation This allows me to deliver solutions that are not only visually finished to a high standard, but also healthier, more comfortable, more energy efficient and built to perform long term. Services include: • Thermal Imaging Surveys • Blower Door Airtightness Testing • Damp, Moisture & Condensation Investigations • Ventilation & Indoor Air Quality Assessments • Soundproofing & Acoustic Improvements • Internal Wall Insulation • Loft, Floor & Roof Insulation Upgrades • Air Leakage Reduction • Retrofit & Energy Efficiency Improvements • Refurbishment & Building Works From diagnosis through to completion, clients deal with one company and one accountable team. No guesswork. No unnecessary treatments. Measured. Diagnosed. Designed. Remediated. Verified.
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We are a professional construction and roofing company specialising in high-quality roofing, repairs, and property maintenance services. With a strong focus on reliability, safety, and customer satisfaction, we deliver durable solutions tailored to each project’s needs. Our skilled team ensures all work is completed to a high standard, using quality materials and up-to-date techniques. We take pride in providing honest advice, competitive pricing, and guaranteed workmanship on every job.
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Perfect Works – Electrical & Construction Services At Perfect Works, we provide reliable, high-quality building services across London and the surrounding areas. With years of hands-on experience in construction, carpentry, and electrical work, we take pride in delivering excellent workmanship on every project – from small home improvements to full renovations. Our services include: Kitchen & bathroom renovations Carpentry and joinery (wardrobes, cupboards, bespoke furniture) Electrical installations and maintenance General building and refurbishment Plastering, tiling, and painting We are committed to professionalism, clear communication, and competitive pricing. Most importantly, we ensure every project is completed to the highest standard, on time, and with great attention to detail. Customer satisfaction is at the heart of what we do, and much of our work comes through repeat clients and recommendations. If you’re looking for a trustworthy, skilled, and affordable builder, Perfect Works is here to help bring your ideas to life.
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We are an architectural and structural design company with over 20 years experience in London. From our office in north west London, we focus on architectural drawings, structural calculations and detailed plans of residential extensions, loft conversions, flat and commercial property conversions and all related building and contractual work.
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Looking for a reliable team to bring your vision to life? We combine innovation, experience, and craftsmanship to deliver outstanding results. Whether you need expert advice or a full turnkey service, we tailor every project to your exact needs for quality you can see and value that lasts.
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Kauri Construction is an East London based Kiwi owned and operated company specialising in loft conversions, extensions and general rebuild refurbishments. We also have experience in landscaping works and joinery. Our company has a good working relationships with many subtrades including roofers, electricians, plumbers and brick layers. We have over 15 years of construction experience with wide ranging projects and values. We are small but very personable contractor happy to build strong relationships and provide clear and detailed information from planning stage and throughout the project. We are happy to quote for any jobs big or small, whether it be a week long project or a full 8 month and beyond refurbishment. As stated above we are based in East London but are willing to travel amongst the greater London area and beyond.
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We are at the service of our clients. Providing electrical, carpentry Metallica structures. Carrying a vast range of services covered by a Handyman. Tailored services to suit our customers.
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Sovereign Roofing and Building Contractors are a local traditional family run professional company covering all various different projects ranging from small repairs to new developments. all our work is carried out in the same professional manor, we believe feedback speaks a lot for our company please read our reviews happy to answer any questions, Regards Sovereign
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Brits has vast knowledge & experience of residential projects and has built several Modern Loft conversions, Major Side & Rear Extensions and whole house Internal Refurbishments. We Offer; Project Management. Program of works. Regular Meetings with the client. Liaise with the local authorities. We execute Projects on time, within budget and with the highest quality. Best housekeeping and H&S Standards. Employees & Public Liability Insurances. Member of FMB, LABC, Trust Mark, NABC
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Jb Construction, a Higher class of standards!! who want to achieve the absolute best for all our clients, all work is guaranteed and comes with 17 years worth of craftsmanship and experience. We solely aim for meeting the clients needs with no hidden costs. We excel in all aspects of building. We specialise in garage conversions and kitchen/bathroom fitting, and have many photos of previous work, all with excellent client references available We let our clients tell you just how good we are
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SW Heating & Refurbishments is a local refurbishment company specialising in complete property refurbishments, extensions and loft conversions, new heating systems and boilers. We take pride in all of our work and our aim is to provide you with a quality finish, tailored to your budget. With over 19 years experience, we have built up an extensive team of tradesmen allowing us to provide an outstanding service. We are fully insured and all our work is gas safe and NICEIC certified.
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We are a growing innovative company in the building and property maintenance services. We boast a reliable, highly skilled, efficient and diverse workforce who is compliant with UK regulations with five years experience. Lugasz.gas are Gase Safe Registered and have a wide knowledge of the Plumbing and Heating trade.
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Bluelime is an architectural design and build company established in 2007. Initially, we specialized in delivering projects for some of the best-known high street brands, including Specsavers, Starbucks, and Krispy creams. In 2014, we made a strategic shift away from the commercial sector, redirecting our focus toward the residential market. Drawing from our professional expertise in design and project management from the commercial realm, we seamlessly adapted these principles to the residential sector. Over the last decade, Bluelime has achieved remarkable success, securing approval for over 400 planning applications across every borough in London. We’ve completed more than 50 development projects, encompassing new builds, extensions, loft conversions, and refurbishments. Our experience spans a diverse range of properties, from Victorian houses to modern apartments, culminating in a portfolio that stands as a testament to our commitment and expertise.
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Hi!I am builder with 20 years experience,I have started my own business ,Friendly company like to offer services to you : Full home renovation,Loft conversion, Installation of kitchens, bathrooms and bedrooms,flooring and skirting ,doors,tiling,painting and decorating, General refurbishment. All work is carried out to a high standard at a competitive price.
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Parris Development covers the full spectrum of residential renovation - from structural remodelling and internal reconfigurations to restoring listed buildings and navigating conservation area constraints. We handle landlord licences for alterations, liaise with building control, and ensure all work is fully compliant with the latest Building Regulations and British Standards. Our team excels at complex projects and collaborates closely with architects, planning consultants, and engineers to deliver seamless, regulation-compliant outcomes that protect your investment and enhance your living space.
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Over the past 25 years, I have gained the knowledge and skills to put myself at the forefront of roofing and building. We pride ourselves in customer relations. Here at Essex Slate and Tile we aim to go above and beyond in delivering customer satisfaction, getting the job done first time and within customers budgets.
