Some of our top rated damp proofers in Harpenden
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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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I am a hardworking and reliable person with a strong attention to detail. I enjoy practical, hands-on work and take pride in completing jobs to a high standard. I am keen to develop my skills in damp proofing, including identifying different types of damp, applying treatments correctly, and following health and safety procedures. I work well both independently and as part of a team, and I am committed to providing excellent customer service and quality workmanship. Reliable, motivated, and eager to learn. I have a strong work ethic, good problem-solving skills, and enjoy hands-on work. I’m committed to delivering high-quality results and continuously improving my knowledge and skills in damp proofing.
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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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At All Roofs London our primary focus is to provide top-notch services at fair and competitive rates. We provide expert guidance supported by the highest quality workmanship. We specialize in both residential and commercial roofing solutions and take immense pride in our reputation as a roofing company that earns your trust
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We have our own company name ND construction we have done job building whole house which includes everything that comes in building work , question I might failed because of language issue but I would recommend you to come on our site to inspect our work thanks
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I offer waterproofing, damp and timber consultancy & expert witness services. We are expensive as we aim to provide leading professional services. Sincerely, Ben Hickman MEng PgDip C.Build E CSRT CSSW APAEWE MCIOB MCABE
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Dalal Roofing & Building Limited is a professional and reliable roofing and building company providing high-quality services for residential and commercial properties. We specialize in roof repairs, new roofs, tiling, slating, flat roofing, guttering, fascias, and general building work. We take pride in delivering quality workmanship, honest service, and reliable results on every project. From small repairs to complete roofing and building projects, our experienced team is committed to getting the job done to a high standard. Dalal Roofing & Building Limited — Quality Work. Reliable Service. 🏠🔨 contect number
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We install Single Heat recovery ventilation systems(MVHR) and Technologically remove mould, install EV chargers.
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I am a reliable and hardworking employee who takes pride in delivering quality results. I adapt quickly to new tasks, work well both independently and as part of a team, and maintain a positive attitude even in challenging situations. I am punctual, organized, and committed to meeting deadlines. My strong work ethic and willingness to learn help me continuously improve and contribute effectively to any workplace.
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Kevin Construction is a London-based, well-organised construction company specialising in large-scale developments alongside leading UK firms. We offer a full suite of services—from extensions and conversions to structural alterations and landscaping. With a dedicated team, digital management tools, and a focus on quality, we guide every project from planning to successful completion.
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damp proofing company with long experience in damp proofing. csrt qualified surveyor.cellar conversions. structural waterproofing.penetrating damp.
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We are a family run business with 20+ years of experience specialising in roofing & damp proofing. We aim to please all of our customers by providing them with the best possible solution for the work required at the right price. No job too small.
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Briggs Plastering services offer full city & guilds qualified tradesmen to help to build & improve what ever vision the client /customer require We cover all plastering requests or tasks such as float&set ,dot&dab ,internal skimming ,artex covering ,coving , external sand& cement ,
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We are Fairbrother Brick Co, a family run business with over 50 years experience. We provide a professional brick restoration service, specialising in cleaning and repointing with the use of natural lime mortar. Feel free to browse our gallery to see our recent work or contact us for more info or to arrange a quote.
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Quality & reliability focused company, Cleedon Ltd serves domestic & commercial clients with their building needs. We can bring reasonable prices for our customers, ensuring that quality remains our top priority. We can provide free quotations and consultancy, bringing our expertise to match your desired outcome.


