Some of our top rated new home builders in Welwyn
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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 joiners by trade, passionate on what we do over the years. We have combined over 32 years of experience on carpentry/joinery itself. As there is always demand, we started delivering any type of construction work, full house refurbishment, kitchens, bathrooms etc. Always preserving our high quality of work, honesty, professionalism. Fully committed to anything we can come across, always find clients, architects solutions so we can achieve everyone’s dream, expectations.
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NA Builders LTD is a reliable and professional building company providing high-quality construction and renovation services. We take pride in delivering excellent workmanship, clear communication, and projects completed on time and within budget. With strong experience in the building trade, we specialise in a wide range of services including extensions, renovations, structural work, brickwork, plastering, and general building projects. No job is too big or too small – we give every project the same level of care and attention to detail. Customer satisfaction is at the heart of what we do. We work closely with our clients to understand their needs, offer honest advice, and ensure the finished result meets their expectations. Our team is hardworking, respectful, and committed to keeping sites clean and safe at all times. If you are looking for a trustworthy builder who values quality, reliability, and professionalism, NA Builders LTD is here to help.
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Torc Groundworks & build take a professional approach to all groundworks, including piling, foundations, underpinning, drainage, RC Works, Brickworks, Paving, driveways and Landscaping.
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Hello, my name is Emine and I am an experienced architect and designer with over 10 years in the industry. I hold a degree in Architecture and since 2019 I have been running my own design and construction company, delivering projects from concept design through to full turnkey completion. I am based in London and can work across the city and surrounding areas. My experience covers residential renovations, interior fit-outs, extensions, and commercial projects. I have successfully completed a wide range of jobs – from designing and detailing bespoke kitchens and bathrooms, to full house refurbishments and complete property transformations. My skills include architectural and interior design, detailed technical drawings, site management, material selection, and coordination with contractors and suppliers. I pride myself on being detail-oriented, reliable, and able to translate client needs into practical and beautiful spaces. You should hire me if you are looking for someone who combines creativity with technical expertise, who listens carefully, communicates clearly, and delivers high-quality results on time and within budget.
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We are development company that builds are own houses for re-sale and we undertake new build homes for clients.
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Deep Brickwork provide professional bricklaying services. We doing all types of brick/block work and complete water tight shell including digging, poring concrete, roof work and internal work as well. If you looking for someone to do New build houses, extensions,Outbuild, garages any type of work Feel free to contact us.
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Murray's Electrical Ltd is a family run business based in Bedfordshire, with a first class reputation for Electrical installations. The team has a wealth of experience and knowledge and have accumulated over 50 years experience in the industry. Whatever kind of job you need doing, you can be sure that we're well equipped to deliver it. Our fully qualified electricians pride themselves on doing the job right the first time. Our dedicated team are ready to be of service. Simply contact us and speak to one of our expert electricians. Murray's Electrical Ltd are timely, courteous, honest and fully qualified and approved. If you need a skilled, affordable electrician we are the perfect choice for you.
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Fluent in Turkish. I have 45 years of experiencing construction that have worked in all areas including high-rise buildings and rough construction metal work measurements. I understand every part of the process and always deliver quality work. Written by the son of the builder.
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Rinnovare Construction & Decoration We are pleased to introduce you to our services. My services include skimming, plasterboard installation, patch repairs and preparing walls and ceilings ready for painting. I’m punctual, hardworking and committed to making sure every customer is happy with the final result. Free quotes available.
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With over 10 years of experience in the building industry, we provide high-quality building, plumbing, bathroom fitting, kitchen fitting and property maintenance services. We specialise in renovations, repairs and home improvements, delivering reliable workmanship and excellent customer service. We are committed to completing every project to a high standard, on time and within budget. Customer satisfaction is our priority, and we take pride in being honest, professional and dependable from start to finish.
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PIKA GROUP is a trusted, family-run business specializing in Civil Engineering, Groundworks, and a wide range of home improvement services. With years of experience and a commitment to excellence, we offer personalized solutions for your construction and renovation needs. From civil engineering projects and groundwork to stunning interior design and building work, we handle it all. Our expertise extends to bathroom and kitchen refurbishments, as well as bedroom and living room makeovers, ensuring that every aspect of your home is built to your vision and high standards. We also provide professional landscaping services to enhance the exterior of your property, creating beautiful and functional outdoor spaces. Whether you’re planning a small renovation or a large-scale construction project, PIKA GROUP delivers quality craftsmanship, attention to detail, and a dedicated approach that only a family business can offer.
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Seasoned professional with 15 years of extensive experience in general building and roofing. Recognized as an expert in extensions, roofing, refurbishments, and loft conversions. Dedicated to providing innovative solutions, superior craftsmanship, and exceptional customer service to bring clients’ visions to life.
