The quick way to find a local Cellar & Basement Conversion specialist in Harpenden

Lita Contractors LTS

Cellar & Basement Conversion

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LITA CONTRACTORS LTD. We are a family owned construction company with over 15 years of successful commercial and residential building projects. Based in London, we help clients with all kinds of construction needs, with existing plans or brand-new designs and solutions. Some of our services include: - Ground work - Drainage - Basements - First Fix & Second Fix - Kitchen & Bathroom Fit Out - RC Frame & Steel Frame. We are specialised in delivering reliable and best quality services that will last a generation.

The Noah

Cellar & Basement Conversion

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Ben’s journey in construction started at an early age. He grew up on construction sites alongside his father, who had a long-standing background in construction and worked directly on government projects. This gave Ben an early understanding of construction that came from being around real projects, real trades and the realities of building. He later studied Architecture, developing a deeper understanding of design, structure and how buildings come together. During this time, his passion for timber and craftsmanship became particularly strong. He discovered that what interested him most was not only designing buildings, but actually creating them. Before establishing NOAH Construction, Ben also gained experience working for leading construction companies, where he was exposed to projects worth millions of pounds and was involved in works with values reaching approximately £10 million. This experience gave him an understanding of the organisation, standards and responsibility required on larger construction projects. NOAH Construction was then established as a way to build something of his own. In just three years, the company has progressed from delivering smaller projects to successfully undertaking works ranging from approximately £50,000 to £1 million in value. Today, Ben combines three important parts of his background: hands-on construction experience from an early age, architectural education, and experience working within larger-scale construction environments. His particular passion remains timber and craftsmanship, but his approach to construction goes beyond one material or trade. The goal is to understand the project as a whole, build it properly and deliver work that he can stand behind. For Ben, NOAH Construction is the result of years spent around construction, studying architecture, learning from larger contractors and ultimately turning that experience into his own business. Hi, I'm Ben !

Exclusive Property Maintenance LTD

Cellar & Basement Conversion

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We are proud to be a top rated, reliable and well respected company with a fantastic team of experts providing outstanding levels of service when it comes to plumbing painting tiling bathroom and kitchen fitting and full house renovations in London and surrounding areas. We carry out all types of work, no matter the size - from small plumbing maintenance jobs such as leaking taps or burst pipes and other domestic work, right up to large installations such as Full house renovation. All of our work is fully guaranteed and we offer professional and efficient Handyman services near you at a competitive cost. Our aim is total customer satisfaction. Not only do we retain our client's custom over many years, they also become our ambassadors recommending us to their relatives, friends, neighbours and business associates.

Latest homeowner review

Reviewed by Wayne on 17/7/2025

Shout out to my brother from another mother. Pleasure having Nik and his boys Ray, Rod and John working on this project. Sometimes in life you have to take a leap of faith and Nik has 100% restored that faith with extreme commitment and professionalism on top of a beautiful finish.

Grigore

Cellar & Basement Conversion

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Grigore is your all-in-one building specialist, offering complete services from start to finish. Whether you’re building a new house from the ground up or need expert help with plumbing, bathroom fitting, electrics, or general renovations — we do it all. With a strong focus on quality, reliability, and craftsmanship, Grigore handles every aspect of construction with professionalism and care. No job is too big or too small — from full builds to the smallest details, we’re here to get it done right. Grigore – Skilled. Trusted. Complete Building Services.

Belgrade Ltd

Cellar & Basement Conversion

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With 20 years of experience in the construction industry, we have developed extensive knowledge and hands-on experience across a wide range of building projects. Belgrave Ltd take great pride in delivering high-quality workmanship, reliable service and excellent attention to detail. We believe in honest communication, professional standards and making sure every job is completed properly and to the customer’s expectations. Whether it’s a small job or a larger project, our aim is simple: provide a professional, reliable service and leave every customer completely satisfied with the finished result.

Elite Building & Heating Ltd

Cellar & Basement Conversion

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Elite building and heating is a family run building business based in West London We have over two decades worth of experience in the building industry and 80+ years of combined experience from our employees, meaning that we are prepared for all types of building projects. We only employ qualified and experienced tradesmen to ensure that our quality is of the highest standard. Our services are great value for money with excellent after sales support.

SSmart Build

Cellar & Basement Conversion

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We are ssmART Build & Design Ltd. Our team pride themselves on We are ssmART Build & Design Ltd. Our team pride themselves on their diligence and painstaking attention to detail. We are a seasoned team of quality builders who have been helping homeowners London area for some time. We have an experienced and disciplined team who have completed many projects throughout our area of operation; indeed we can help you complete all types of home improvements and extensions/conversions. We pride ourselves on our impeccably high standards and always strive to deliver on time and within budget. We can help with all of the following and more: • Extensions (both single and double storey) • Loft Conversions • Basement Conversions • Garage Conversions • Kitchens • Bathrooms and wet rooms • Exterior and Interior painting and plastering • Plumbing, electrical work and carpentry • Annexes • Replacing both wooden and PVC doors and windows We are always delighted to meet our prospective customers face to face to discuss their requirements. We look forward to hearing from you soon.

Latest homeowner review

Reviewed by Florin on 15/7/2019

I found Lorand to be very professional in his craft ,friendly individual and very reasonable priced. I would highly recommend his work in extensions,brickwork etc.

MB bricklaying services

Cellar & Basement Conversion

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I have been in the trade for many years, (17 years) I have recently gone on my own, and my business is doing really well, I take pride in my work and it's what I enjoy doing. I always hit my targets and it's shown because my business is doing brilliant

Latest homeowner review

Reviewed by Jonny on 29/6/2026

Martin did an incredible job of putting up my curtain poles and I’d recommend him to anyone in need of a handy man.

Daniel the Handyman

Cellar & Basement Conversion

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Handyman with qualifications in plumbing and electrical works. Small quotes as the company is only a toddler and needs feeding to grow.

Latest homeowner review

Reviewed by Stella on 4/6/2023

Daniel came within 24 hours to build a cat flap through a wall. Lovely chatty guy - very helpful - even drove me to pick up an extra extension for the tunnel we needed to create. Thank you!

Lion Group London Limited

Cellar & Basement Conversion

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Tooled with years of experience, we undertake design & reconfiguration of builds; adding value to your home or business. Working closely with you; we create a bespoke, quality finish within your budget & affordability. Delivering a high standard of skill & integrity of craftsmanship we are proud off

BTL Building & Landscaping

Cellar & Basement Conversion

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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

Edgars Constructions Ltd

Cellar & Basement Conversion

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Well established family run building company based in London,we have built a strong relationships with well known building societies across the London due to our quality and trustworthy service High quality levels of work in major building projects,we specialise in planning and design,project management and general building services

Latest homeowner review

Reviewed by Zuzie on 17/3/2026

CJP Builders

Cellar & Basement Conversion

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CJP Builders is a general builders company that specialises in high-quality brickwork, whilst that is our forte we also offer a full range of building services catered to what you need from us. With strong attention to detail, alongside the experience and expertise were always looking to expand and grow taking on any work or projects of all sizes We aim to deliver reliable, efficient and everlasting results, whether it’s new builds, extensions, renovations or repairs, we here at CJP are committed to quality workmanship and customer satisfaction every step of the way

Meyli Build Ltd

Cellar & Basement Conversion

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We specialize in construction services, delivering high-quality residential, and commercial projects. Our team of experienced professionals excels in design, construction, and project management, ensuring every project meets modern standards and aligns with our clients' needs. We are committed to providing professional, cost-effective services and achieving complete customer satisfaction.

Ground Force Landscaping And Building Suppliers

Cellar & Basement Conversion

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The company has more than 10 years experience within the Landscaping, Construction and Horticultural Industry. Our specislism includes country estate management, grounds maintenance, sports ground services and water features. No job its ever too small or too large.

Latest homeowner review

Reviewed by Vivienne on 18/1/2021

Excellent service and work. Turned up on time, did a thorough job and went beyond what was asked. They do big landscaping jobs and small clearances. Highly recommended.

Nikomar

Cellar & Basement Conversion

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Hi welcome to nikomar. We are a professional general builders . Our team are electricians plumbers tilers,carpenters painters etc. we are specialists on lofts conversions extension. And all interior refurbishing. We are working on this trade for more than 15 years.

Bullari LTD

Cellar & Basement Conversion

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We have been working on building projects for last 8 years Wood floors Bathrooms Painting & decoration Garden tiles

Latest homeowner review

Reviewed by F on 2/4/2026

Not recommended