Some of our top rated extension builders in Knebworth
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At Herts Sparks, we specialize in delivering high-standard electrical installations and bespoke designs tailored to your needs. With a keen eye for detail and a commitment to quality, we work closely with our customers to bring their vision to life-whether it’s a stylish home renovation, a cutting-edge commercial fit-out, or a complex industrial project. Our expert team ensures every installation meets the highest safety and efficiency standards while maintaining competitive pricing. From concept to completion, Herts Sparks is your trusted partner for reliable, professional, and innovative electrical solutions. Quality. Precision. Affordability. That’s the Herts Sparks promise.
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Bespoke building company based in Harpenden. Regularly completing one of a kind extensions, loft conversions and development projects to a high standard.
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Avenue Developments is a development consultancy, taking projects from inception to completion, in time and within budget. We offer our clients a tailored service, by evaluating each project to identify where value can be added and where potential problems may arise. We are committed to the quality of our professional service and have proven to satisfy our client's expectations.
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Carpenter with 20 years of experience, building wood houses, refurbishment, stairs , landscaping extensions, decking and play areas for kids. We undertake any project, doesn’t matter the size, at Woodhouses how I say: “big or small, we doit all”. Trust, respect and happy clients it’s my ideal project’s start to finish base for a productive and satisfying builder-costumer relationship, in order to achieve the desired outcome.
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I'm a qualified bricklayer that is also is specialised in extensions, groundworks, outside drainage, patios, driveways, garden walls.
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Newly setup business (2 yrs) 40yrs experience. Looking to expand having worked in the trade for many years covering all aspects of building. Have set up to cover all general building works with experienced contractors in gas and electrical who assist with works. We are a family run business and look forward to helping create ideal spaces within your property to enjoy.
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Majestic Builders LTD, we’re a friendly, reliable construction company providing all types of general building work for homes and properties. From small repairs and renovations to full home extensions and new builds, we take pride in doing the job right — safely, neatly, and to a high standard. Our team covers all aspects of residential construction, including brickwork, plastering, roofing, tiling, carpentry, and more. We believe in honest communication, fair pricing, and quality workmanship that lasts. Whether you’re improving your home or starting something new, Majestic Builders LTD is here to help make your project simple, stress-free, and built with care.
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Free Architectural Plans Included with every build. Crafting timeless spaces with precision, passion, and purpose. Welcome to ASG, where visionary architecture meets exceptional construction. From concept to completion, we bring your ideas to life with innovative design, sustainable practices, and uncompromising craftsmanship. Whether you're planning a custom home, commercial space, or renovation, we deliver spaces that reflect your vision — beautifully and efficiently.
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We are more than a construction company — we are builders of trust, quality, and lasting value. With a passion for excellence and a commitment to precision, we deliver outstanding results in residential and commercial construction, renovations, and structural projects of all sizes. Every project we take on is driven by craftsmanship, attention to detail, and a deep understanding of our clients’ vision. Our experienced team combines modern techniques with proven expertise to create spaces that are not only functional, but truly exceptional. We believe that great construction goes beyond materials — it’s about reliability, transparency, and strong partnerships. That’s why we prioritize clear communication, on-time delivery, and uncompromising quality in everything we do. From concept to completion, we turn ideas into reality and ensure every detail is built to last. Our mission is simple: to exceed expectations, deliver excellence, and build spaces that stand the test of time.
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Here at What 4 Building Solutions LTD, We cover all aspects of the of the building process. From helping with design using our amazing architects. Getting your ideas through planning and building regs, then making your dreams come true. We cover Herts, London, Essex & Cambridgeshire. Taking on any size project from new builds to a refurb or even just a new kitchen we can help. We offer man and machine hire and licensed waste removel. We have all the trades on hand ready to go so we have no delays on our projects. We have the SOLUTION for your project... We are pround Members of the Federation of Master Builders and TrustMark the only Government Endorsed for Quality work.
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General Builder with 25 years experience, specialising in Brickwork. Extensions, Refurbishments. Patio's, Landscaping and Driveways all undertaken.
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We are a reputable, personable local builder who has been trading for over 10 years, with numerous positive reviews on Google and Facebook. Have a better look at some of our work on our website and social media platforms.
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A.M.C BUILD is an all purpose building company. We undertake refurbishments, new builds, repairs and all. With a quality workforce capable of undertaking all aspects of construction work, from footings to finish.
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At Keycraft Construction Ltd we provide construction services to customers in London and Essex and have over 10 years’ experience in the industry. As craftsmen with in-depth knowledge of our trade, we use a combination of traditional and modern methods to help each customer to achieve the finish they desire without compromising on quality. At Keycraft Construction Ltd , your project is our business. We specialise in construction projects completed to the highest standard no matter how big or small your project is. We are a small but highly driven and reliable team, looking to make your home renovations a reality. We believe that all construction work should be done to the highest standards, whether it’s a new porch or double side extension. We conduct a consultation with each prospective customer so that we can accurately gauge their expectations, desired functionality, timescale and budget. This allows us to advise each customer of the best course of action based on their particular needs and helps us to achieve high rates of customer satisfaction for our construction services
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At **MOVMIL LTD**, we provide a comprehensive range of home improvement services, making us your one-stop shop for renovation and refurbishment. Whether you’re reconfiguring your home or updating its décor, our skilled team delivers high-quality results. We specialize in creating spaces that match your style and needs, from upgrading interiors to reconfiguring layouts, ensuring both functionality and aesthetic appeal. Our services also include professional painting and decorating, with high-quality materials for a perfect finish. We offer plastering to create smooth, even surfaces, and kitchen fitting to make your space both stylish and functional. Our carpenters also handle bespoke storage and elegant staircases. With over 7 years of experience since 2017, we’ve successfully completed projects from small refurbishments to large renovations for both residential and commercial clients. We manage all aspects of your project under one roof, minimizing delays and stress with one point of contact. We listen to your needs, offer expert advice, and provide tailored solutions to bring your vision to life.
