Some of our top rated extension builders in Hertford
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Welcome to ALLARAJ BROTHERS LTD At ALLARAJ BROTHERS LTD, we pride ourselves on delivering excellence in every project we undertake. With decades of experience in the construction industry, we have established a reputation for quality, reliability, and customer satisfaction. Our team of skilled professionals is dedicated to bringing your vision to life, whether it's a residential, commercial, or industrial project. We use the latest technologies and sustainable practices to ensure that every build is not only beautiful but also durable and environmentally friendly. We understand that each project is unique, and we tailor our services to meet your specific needs and preferences. From initial consultation to project completion, we work closely with you to ensure that every detail is executed to perfection. Choosing ALLARAJ BROTHERS LTD means choosing a partner who values integrity, transparency, and excellence. Let us help you create spaces that inspire and endure. Contact us today to discuss your next project and experience the difference that true craftsmanship and expertise can make.
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With over 20 years’ experience in the plumbing and building industry, this has enabled our team at **Plumb4All** to become a well-known and trusted company. We offer a 24/7 call out service and long term support for existing clients as a single point of contact for any future queries and issues. Our many happy and repeat customers find us through word of mouth and being fully qualified gives you the peace of mind that quality of service and very high standards are at the core of our values.
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Trusted builder with over 30 years of experience in the construction industry. Specialising in loft conversions, extensions, refurbishments, patios, structural work, and small jobs. Known for reliable service, quality workmanship, and completing projects to a high stand
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Have been in the building industry for 25 years. With my team we have a collective knowledge of the building industry 70plus years served. Qualified electrician, moved into plumbing kitchen and bathroom fitting, including all tiling works. Have moved into building works, kitchen extensions and knock throughs, structural alterations, large extensions , loft conversions , new builds and hard scraping , complete building service from start to finish.
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I have 45 years experience in the building trade from being a site carpenter to a foreman to site manager to become a builder in the domestic market I have a five star rating through a company called rated people numbering 35 five star ratings I’m experienced and reliable and I am a good communicator
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At CSO Projects &Surveying Ltd, we specialise in high-quality construction, refurbishment, and property services tailored to both residential and commercial clients. Our experienced team delivers everything from Energy Performance Certificates (EPCs) and stock condition surveys to full refurbishments, extensions, damp surveys/treatment, and garden transformations. We pride ourselves on fast turnaround, honest advice, and a commitment to excellent workmanship. Whether you’re a homeowner, landlord, or developer, we’re here to bring your vision to life with reliable service and transparent pricing.
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Mc Donald offer a wide range of services that cover the entire project. From concept to completion. Our wide range of capabilities means you’ll always have our in-depth expertise, experience and know-how at your disposal. By providing every service under one roof, Mc Donald Ltd can handle your entire project from start to finish. This includes architectural planning, designing, building regulations and planning permission, structural engineering, constructing and managing your project.
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BTL Building & Landscaping – Creating Timeless Spaces, Built To Last At BTL, we specialise in transforming outdoor & indoor areas into extraordinary spaces that reflect elegance, functionality, and timeless appeal. Whether it's a luxury garden retreat, a bespoke outdoor living area, or a comprehensive property renovation, our building and landscaping services are designed to exceed expectations—every time. Crafted for Excellence We are not just builders or landscapers—we are artisans of space. Our mission is simple: to deliver high-end solutions that not only elevate properties but enrich lifestyles. From concept to completion, we bring a level of precision, care, and craftsmanship that sets a new standard in the industry. Each project we undertake is treated as a unique expression of our client’s vision. Our team collaborates closely with homeowners, architects, and developers to ensure every detail aligns perfectly with your goals—whether you’re seeking to increase property value, create a stunning visual statement, or build a sanctuary for everyday living. We would love to part of your journey creating spaces you thought you could only dream of. BTL Building & Landscaping Creating Timeless Spaces, Built To Last
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Aston Knights Construction | Structural Specialists & Main Contractors We are a high-specification Main Contractor operating across Hertfordshire, specializing in complex residential extensions, structural transformations, and high-end superstructure builds. Rooted in commercial-grade structural execution, we bring heavy-engineering standards—including complex steel arrays, high-load masonry, and precision groundworks—to domestic residential projects. We deliver architectural design intent to millimeter tolerances. Our Core Capabilities: Structural Extension Shells: Complete groundworks, steel fabrication/erection, precision masonry, and roof-to-watertight packages. Structural Alterations & Steelwork: Complex RSJ installation, load-bearing wall removals, and architectural reconfigurations. Turnkey Extensions: End-to-end main contracting delivered under formal JCT contracts. The Aston Knights Standard: Engineering Precision: All works executed strictly to structural calculations, building control regulations, and inspector sign-off. Immaculate Site Culture: Safe, clean, and organized sites managed with direct communication and professional site discipline. Fixed Transparent Pricing: Fully itemized line-item proposals with com
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We are a trusted building company specialising in extensions, loft conversions, and full property refurbishments. Alongside our larger projects, we also deliver high-quality patios, fencing, joinery, and carpentry work. With a strong focus on craftsmanship, reliability, and attention to detail, we work closely with our clients to ensure every project is completed to the highest standard, on time and within budget.
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Over the past decade LSW have built a reputation for delivering quality projects and unsurpassed added value. We provide work across Residential and Commercial sectors providing a comprehensive service, from start to finish including design, construction and maintenance.
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Sinco Services Limited Hi my name is Nikolay, I been working as a builder for 15 years from painting to extensions. I have completed high quality work including large scale rear extension from foundations to finish with top quality. Our including bathrooms, wet rooms, laminating, tiling, plastering and complete renovations. Although I am based in North London, I can travel all around London I have my own team who is reliable and consistent completing work a to z.
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Garnet Construction has over 10 years' experience in the industry and specialise in loft conversions, all types of extensions and complete renovations. Priority is given to the design and construction of all our projects with a unique obsession to strive for perfection.
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AH North Builder Ltd specialise in all types of building we are professional and very determined to ensure our clients expectations are met. we have worked on many different building projects for more than 10 years experience.
