Some of our top rated builders in Hertfordshire
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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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Multi-Skilled Tradesman | Carpenter • Groundworker • Plant & Machinery Operator I’m a hands-on professional with over 3 years of solid experience across carpentry, groundwork, and operating heavy machinery. Known for my strong work ethic, reliability, and good communication on site, I bring both technical skills and a positive, team-focused attitude to every project. 🔹 Carpentry: Skilled in both rough and finish carpentry — from structural framing and decking to trim, formwork, and custom woodwork. I take pride in precision, craftsmanship, and building to last. 🔹 Groundwork: Experienced in drainage, trenching, foundations, concrete prep, kerbing, and general site preparation. I understand the importance of groundwork in the structure of any build and approach it with care and efficiency. 🔹 Plant & Machinery: Competent in safely operating excavators, dumpers, rollers, telehandlers, and other heavy machinery. I have a strong understanding of safety protocols, routine maintenance, and job site awareness.
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We are an experienced business focusing on all building, renovations, kitchen and bathroom fitting as well as painting. Feel free to view our web page and request a free quote.
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We create architectural drawings. We are specialised in applications for planning permission and building regulations and co-operate with local structural engineers for structural calculations, party wall surveyors and building companies. Our projects include extensions, lofts, garages, house&flat conversions in different councils all around London. If you are thinking of extending, converting, or splitting your property do not hesitate to contact us for a free first consultation & quotation.
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Ho, my Name is Andrei and I’m a ground worker in the north west area of London specialised in driveways.
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Father and son ground works team anything from footings to steel work Inclusive - driveways -patios - drainage - fencing - machine driver Many years of experience small to large projects taken on Full building projects taken on too From new builds to conversions
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Our company, Construction in level, specializes in construction works, groundworks, performing each project with passion, precision, and dedication. With our experience and attention to detail, we ensure the highest quality of service, meeting the expectations of even the most demanding clients. By choosing us, you choose reliability, professionalism, and satisfaction with the results.
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We have a long 15 years experience in general build .loft conversions.Extentions .roofing etc.no job is to big ,no job is to small for us
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Our company have been in the construction industry for more than 10 years. Our services and where they are typically utilised: Party wall partitions – Residential schemes Internal partitions – All construction projects Fire rated partitions – All construction projects Wall linings – All construction projects Plasterboard MF ceilings – All construction projects Suspended grid ceilings – Offices, commercial, schools and healthcare SAS ceilings – Offices and commercial buildings Feature ceilings – Hospitality, retail and shop fit outs Soffit linings – industrial and commercial SFS external wall systems – Residential, schools and roof top extensions Tape and jointing – All construction projects
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My names paul and i run morris maintenance we are a group of tradesmen covering all aspects of building services and maintenance across essex,London & Hertfordshire and have been operating for 6 years now with 100% 5 star feedback on every project we have undertaken to date.
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Specialising in bespoke home renovations, extensions & conversions we are committed to exceptional craftsmanship. We prioritise transparent communication and safety to ensure your project is completed on time, within budget, and to your exact vision.
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Hi. Thanks for visiting my page on my builder.I've been working with wooden sash windows for the last 12 years now doing all rotten wood replacements, sanding repairs and repainting. Replacing cords and rebalancing, replacing the beads or broken glass, fitting new locks and security restrictors, replacing double glazed units, front door repainting, masonry repairs and repainting. I do it all from inside the house or off the ladder, i do not need any scaffold. I do gutter clearing, repairs, slate roof repairs
