Some of our top rated builders in Winchmore Hill
Sort by:
- Get in touch
I put my hands to almost anything. From clearing an over grown garden and turning it into a gravel driveway to painting doors. If I can’t do something I will be honest and will never take on something I could not complete to a great standard. I am very easy going, reliable and fast
- Get in touch
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.
- Get in touch
Im a loft builders, I have worked for past 15 years on lofts, I all ways give my best to costumers.All ways on time never late,all ways give costumers ideas, my work is all ways finished on time and on budget, clients are the priority they happy we are happy.
- Get in touch
At ELI GARDENS, we believe that every garden has a unique story to tell, and we are here to help you write yours. Let us bring nature's beauty to your doorstep. Contact us today for a consultation, and let the magic of ELI GARDENS transform your outdoor space into a stunning masterpiece.
- Get in touch
Medium size construction company with over 25 years of experience in domestic and commercial refurbishment works. Fully insured. Gas Safe registered. NIC registered. Certified in structural waterproofing. We specialise in new builds, extensions, loft conversions and general refurbishment works. Genuine references with option to visit and see our previously completed projects.
- Get in touch
This is Jimmy&Son Construction LTD, We got 30 years of experience on Loft conversions, Extensions and full house renovations.
- Get in touch
I'm Ridvan Ndrejaj. The owner and operator of J&G building services. With 15 years of experience in building construction industry. Specialist in loft conversion. extensions. Full refurbishment. Landscaping etc.. We are a team that u can put your trust on as. Very friendly and helpful.
- Get in touch
We are a family run company with a highly skilled workforce who have decades of experience and expertise in the construction industry.
- Get in touch
We are a London-based construction company delivering high-quality building solutions across the capital and beyond. Specialising in residential and commercial projects, we provide reliable, end-to-end services—from planning and groundwork to final completion. Our focus is simple: quality workmanship, clear communication, and projects delivered on time and within budget. While we are proudly based in London, we also undertake projects across the UK, bringing the same level of professionalism and attention to detail wherever we work. Whether you’re planning a new build, renovation, or extension, we work closely with you to turn your vision into reality.
- Get in touch
Both customers that have long-term and short-term jobs are welcome to contact me. I am very organised and punctual, I can cope with working under pressure, being serious and flexible in the same time. Therefore I can make a schedule that suits both the customers and myself.
- Get in touch
We have over 15 years experience carrying out a range of projects including domestic extensions, refurbishments and loft conversations and many other aspects of general building. We pride ourselves on the quality of our work and completing projects within the agreed time frame and budget. We always really appreciate the opportunity to discuss your project with you and provide a quote.
