Some of our top rated conversion specialists in Harlesden
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Mansell Construction are a family run company that has been in the building trade for over 30 years. We have a passion to deliver every project we take on, no matter how big or small to the highest of standards. We take pride in having a friendly and clear approach. We specialise in all kinds of work including - Extensions - Loft conversions - Roofing - Bricklaying - structural alterations - Steel RSJ installation - conversions - Plastering/Rendering - Driveways/Patios - Fencing and more.
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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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Our company specializing in high-end residential construction, property refurbishments, designing and installation of high-quality custom 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. Use our experience and free initial consultation to understand the value we can add to your home.
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TomBuild Services are London-based building contractors, specialising in a vast range of jobs; from full home renovations to kitchen and bathroom refurbishments. See full list of services below. - Public Liability Insurance - 1-year warranty on all work - Competitive pricing Full list of Services Painting and decorating Tiling Kitchen Fitting Bathroom Fitting Joinery Patios Fences Garden maintenance
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Reliable and experienced builder specialising in extensions, renovations, brickwork and general building services. I deliver high quality workmanship with attention to details, clear communication and projects completed on time and within budget. No matter the size of the job, i work professionally and treat every property with care
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E&L Construction is the leading provider of domestic construction work across London.As a family-run business customer service is at the forefront of our business, we specialise in every type of building work,home extension,including loft conversion etc.
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Family run company specializing in making more space extensions, loft conversions, out buildings,new builds. we can take the stress out of building for you from the start to finish with setting out architecture drawings building control structure build and interior ..
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MACLONDONBUILDING specialist in general construction and renovation services. All kind of house conversions . Our works are performed at the highest standard with attention to the details. Professional team always happy and enjoyed of the work.
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Reliable, fully insured construction company delivering high-quality workmanship across residential and commercial projects. We cover all aspects of construction including extensions, renovations, loft conversions, kitchens, bathrooms, roofing, landscaping and full refurbishments. From design to completion, we manage every stage with clear communication, fair pricing and attention to detail. Customer satisfaction, safety and deadlines are our priority.
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Introducing a seasoned building company with extensive experience in domestic and commercial construction, loft conversion, house extension, full refurbishment, electrical, and plumbing services. Just like a skilled chef in the kitchen, we pride ourselves on delivering a variety of high-quality services tailored to meet your needs. With our wealth of experience and expertise, we handle each project with precision and dedication, ensuring superior results that exceed expectations. Trust us to bring your vision to life and transform your space into something truly remarkable. Experience the difference that a well-established building company can make - choose us for all your construction needs.
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We are company with over 15 years of experience in construction industry. We provide exceptional services and high-end residential refurbishment. Our qualified team undertake projects around London. The type of work we undertake includes: - Extensions - Loft conversions - Plumbing and Electrical Services - Kitchen and Bathroom refurbishment - Carpentry - Painting and Decorating
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We are a company that deals with all types of repairs, including small jobs. We will also undertake any other construction work. If you need help with electrical, plumbing, carpentry, tiling, kitchen or anything else, please contact us.
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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.
