The quick way to find a local Cellar & Basement Conversion specialist in St. James's
Over 10,000 rated tradespeople
are ready to help you get your job done
Over 3 million happy homeowners
have found a quality tradesperson
Over 1 million ratings
with 88,000 5* ratings in the last 12 months
Join our group of happy customers
Thousands of 5 star reviews
Read real reviews from customers about their service experiences.
Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!
Mary
George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!
Dmitry
Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.
Holly
Browse Cellar & Basement Conversion specialists
Take a look at our Cellar & Basement Conversion specialists profiles, read reviews and request quotes directly.
Avion Homes LTD
Cellar & Basement Conversion
At Avion Homes, we specialise in new build homes — delivering quality housing from concept to completion. Whether you're a landowner, investor, or first-time buyer, we offer a complete service that covers the full construction life cycle: from early-stage planning, design coordination, and procurement, right through to handover. As TrustMark and Federation of Master Builders (FMB) members, we’re committed to the highest standards of professionalism, reliability, and workmanship. Every project is backed by Premier Guarantee structural warranties, giving you long-term peace of mind. We combine the hands-on care of a local builder with the systems and structure of a professional developer — ensuring your vision is delivered on time, on budget, and built to last. From land to home — we make it happen.
Welcome to DB ARK With over 10 years of experience, we specialise in creating bathrooms, bespoke furniture and kitchens that combine style, functionality, and quality craftsmanship. Whether you’re looking for a modern kitchen upgrade or a luxurious bathroom transformation, we deliver tailored solutions to suit your needs and budget. Our services include: •Full bathrooms and kitchen renovations •Custom cabinetry and fittings •Tiling, flooring, and lighting installation •Plumbing work •Wet rooms and walk-in showers •Bespoke furniture •Carpentry work We pride ourselves on delivering high-quality finishes, attention to detail, and excellent customer service. Check out our portfolio and customer reviews to see how we’ve helped clients turn their vision into reality.
? I am 25 years professional Tiler is ? Most of the time, so I am doing ? ? refurbished, bathrooms ? I am like my job because I’m doing something new
Thomas is personable, helpful and quick.
family run business with over 20 years in the roofing industry we can meet all of your roofing needs from flat roofs fibreglass felt or rubber we do small single slate and tile repairs to whole new roofs all UPVC products dry verge systems dry ridge systems all types of guttering basically anything to do with your roof chimney repairs to lead work we do it all hard and soft Brick layer re-pointing /
I call Phill and sons 3 days ago to fix a leak on my roof. I did have the valley fix by an other roofer but they did not do anything just to take my money. I was a bit suspicious but I was happily surprise when I call Phill who repond to my call very quicly. He is very friendly and most of all very professional. So so please with Phill I'll will recommand him anytime.Thank you Phill for your excellent job
Our company Construction and Renovation work of 25 years. At this time, we have gained a wealth of experience backed by references received from our customers. Cost estimates are free of charge. Professionalism guaranteed.
Greg is a very helpful and professional. Arrived when he said he would and gave sound advice on a very tricky guttering problem.
R&D CONSTRUCTION IS A PROFESSIONAL DESIGN AND BUILDING COMPANY SPECIALISING IN ARCHITECTURAL DESIGN AND PROJECT MANAGEMENT FOR RESIDENTIAL AND COMMERCIAL PROPERTIES, ALSO A WIDE RANGE OF CONSTRUCTION, DEVELOPMENTS AND REFURBISHMENTS. We Carry out all type of construction and to us no job is a small job and by that we mean we would be happy to take your various jobs in our hands. We provide the following list of the building services: New Build Property Refurbishment Loft Conversion House Extensions Flat Conversion Driveway & Patio Bricklaying & Re-pointing Kitchen & Bathroom Roofing & Guttering Plastering & Tiling Carpentry & Joinery Painting & Decorating Plumbing & Electrical Central Heating & Under Floor Heating Design We believe a great design is simple and not only how it feels or looks but also how it works. We provide Architectural and Interior Design and Engineering Services: Initial Concept Design Basic Drawings for Planning Application & Application Management Existing & Proposed Floor Plans, Elevations and Sections Site Plans and Block Plans (OS map/ Location Plan) Detailed Architectural Design 3D Concept and Visualisation Design Interior Furnishing, Materials & Fabrics Lighting Design Bills of Quantities (BOQ) 3D Interior Visualisation Design 3D Interior Visualisation Design Building Control package Drawings & Application Management
Mo came out the following day and did an excellent job at a very reasonable price.
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M12.5%2020.392a1%201%200%2001-.54.888l-5.274%202.73a1%201%200%2001-1.435-1.109l1.494-6.588a1%201%200%2000-.306-.964l-4.723-4.254c-.65-.586-.287-1.666.585-1.74l6.105-.514a1%201%200%2000.846-.629L12.5%200v20.392z'%20fill='%23F7DB34'%20/%3e%3c/g%3e%3c/svg%3e){kind=small}
Maidtowork: Transforming Spaces, Inside and Out At Maidtowork, we take pride in our journey from a trusted cleaning service to a comprehensive solution for all your interior and exterior needs. What started as a humble cleaning company has evolved into a multifaceted team catering to a diverse range of customer requests. Our Services: Cleaning Excellence: Our roots lie in providing top-notch cleaning services. Our experienced team ensures that your interiors gleam with cleanliness and hygiene. Garden Oasis: Responding to the demands of our valued customers, we've expanded our services to include garden clearance and restoration. From planting and re-turfing to seeding, paving, and building sheds and fences, we transform your outdoor spaces into thriving havens. Interior Mastery: Beyond cleaning, we specialize in refurbishments, new construction projects, and enhancing key areas like kitchens, bathrooms, and flooring. Whether it's a complete overhaul or a targeted improvement, we bring a decade of expertise to every project. Why Choose Maidtowork? Comprehensive Expertise: Our diversified range of services reflects our commitment to meeting your every need, both inside and outside your home or workplace. Experienced Team: With a seasoned team of seven professionals, Maidtowork brings over a decade of collective experience to ensure the highest quality in every project we undertake. Customer-Centric Approach: Customer satisfaction has been the driving force behind our expansion. We listen to your needs and tailor our services to exceed your expectations. Reliable and Trustworthy: Maidtowork has earned a reputation for reliability and trustworthiness. You can count on us to deliver exceptional results, consistently. Transform your living and working spaces with Maidtowork — where expertise meets excellence, and your satisfaction is our priority. Inside or outside, we've got you covered!
We are a small company, specialising in supplying quality workmanship, to customers, all our installers have aquiared many years of experience, this includes electrician, carpenters, painters, floor layers , we specialise in garage conversions, and refurbishment work ,
Good communication throughout the process. The job was well done. Premises left tidy. Rubbish collection arranged. I would definately use again.
I am a competent multi trader with many years of experience on construction industry. I am taking responsibility of my works, I have pride in the job and the goal to offer 100% customers satisfaction. All my works are Insured. Previously I worked for housing developers doing and managing the construction and finishing of the buildings and after many years working for someone else and gaining wider experience I choose to start my own business. I am sure that my works will meet your expectations but I am aiming to exceed them.
Nico was very professional and carried out exactly what was required (retiling a shower). I will definitely use him again.
Valentino has done a fantastic job of bathroom and kitchen refurbishment. He has delivered what he had promised no hidden charges and no false promises. Very reliable and soft spoken. He uses the best material in the market so quality of product is very good. He did the facia as well which is also of very good specifications. Overall he is a fantastic builder and I would 100% recommend him.
i have over 20yrs experience in the building trade .have nvq level 2 brickwork qualification also work with various types of building companies to gain more knowledge in the industry ..i am firm believer in letting my work speak for itself.
Paul repointed a garden wall that was starting to crumble. Excellent work. He was on time, super friendly, and easy to talk to and he did a great job. I was also very happy with the price which was below what others had quoted.
IMPRESS EUROPE LTD
Cellar & Basement Conversion
Impress Europe Ltd is a full service construction company offering comprehensive solutions for residential, commercial and industrial projects. From design and planning to building and finishing, we handle everything - including new builds, extensions, loft conversions, renovations, landscaping and custom projects. Our team of skilled professionals are committed to delivering quality, safety and excellence in every job. We pride ourselves on reliability, clear communication and building long lasting relationships with our clients. Choose Impress Europe for all your construction needs - one company, every solution.
With over 10 years of experience in the field, our dedicated team specializes in a wide range of refurbishment projects. We take pride in transforming spaces, whether it's residential, commercial, or industrial, ensuring that every detail is meticulously attended to. Our expertise encompasses everything from interior renovations to exterior upgrades, allowing us to breathe new life into any environment. We are committed to delivering high-quality workmanship, utilizing the latest techniques and materials to achieve stunning results that meet our clients' needs and exceed their expectations.
Cosmin, Alex and all their colleagues were excellent. They installed a new toilet room, exactly as we wanted it. The work was high quality, but most importantly Cosmin is accommodating and easy to work with. We are already planning to do another job with him.
Its quality time! With over 10 years experience, tens of finished jobs and tens of happy clients, I am a landscaper who can manage any job. Big or small, easy or complicated is never a problem for me. For any details don't hesitate to contact me.
Work that took place was amazing and recommend IA trader to anyone that needs work done.
The smallest details can make a real impact when it comes to designing a space, but only a true professional knows how to bring these details together to create a seamless design. That’s where Complete Kitchens And Renovations comes in. With over 35 years experience and a team of skilled tradesmen you'll be in safe hands. ? We work throughout the South-East providing bespoke home renovations and extensions tailored to our clients’ needs. ? From a small kitchen installation to a full house renovation, no job is too big or small.
Very happy with result.
Residential and commercial building contractor specialising in kitchens, bathrooms and full renovations. With over 12 years experience in the building industry our attention to detail is paramount.
Very quick, well priced and they did a great job. Thank you
NPC Decorators
Cellar & Basement Conversion
Elevate your home's style and value with our exceptional Painting and Decorating services. • Expert color consultation and design • Fast, efficient, and meticulous workmanship • Personalized service to fit your unique needs • High-quality paints, materials, and finishes • Flexible scheduling to fit your timeline Whether you're preparing to sell, refreshing a tired space, or creating your dream interior, our premium Painting and Decorating services will elevate your living experience and increase the value of your property. Invest in your home and enjoy the benefits of a beautifully updated space that reflects your unique style. Our meticulous attention to detail and commitment to quality ensures a flawless finish that will have a lasting impact. Let us handle the hard work so you can sit back, relax, and enjoy your transformed living space.
S.T CONTRACTS LIMITED
Cellar & Basement Conversion
Building Contractor & Commercial Builder in Radlett, St Albans & Surrounding Areas | S.T. Contracts Welcome to S.T. Contracts, your reliable domestic building contractor and commercial builder with a proud history of excellence since 2009. As a family-run business based in Watford, we bring over 50 years of combined industry experience to every project, serving clients across Watford, Radlett, St Albans and surrounding areas with professionally executed property refurbishments, solar panel installations, garden rooms, garage conversions, kitchens and bathrooms and more. For high-value projects, we also offer nationwide coverage. Our company motto, “A company built on its reputation,” reflects our unwavering commitment to delivering top-notch results on time and within budget. We are fully insured and proud members of the Federation of Master Builders (FMB) and the Guild of Master Craftsmen, with all trades provided in-house. Our team of fully trained and qualified professionals, with certifications such as City & Guilds in plastering and SMSTS, are all DBS checked to ensure safety and reliability.
London Development uk ltd is our company, we have been trading for over 12 years in the construction business. - We are a fully insured company with a big portfolio of jobs completed and we are friendly and reliable on any work and business that is coming across. - We can do big jobs as new buildings or full refurbishments, basements, extensions, lofts conversions etc and also we can do small jobs as bathroom refurbishments or even smaller is always space and time for a new job. - We guarantee you that you will get the best workmanship on your job with best skills and acknowledge in the construction industry, time effective and costly effective for customers. Try our company and you will gain the benefits!!!
Peter contacted me and was amazing, professional with his quote and recommendation. Very clean, tidy service and very open and honest. Peter and his team are excellent builders.
Sinevir Construction is your trusted partner in construction with over 15 years of experience. We offer a full range of services, including plumbing, tiling, bricklaying, plastering, carpentry, bathroom installations, and building homes from the ground up. We guarantee high quality, adherence to standards, and timely project completion. Our team of professionals uses the best materials and advanced technologies to ensure durability and reliability. We also provide competitive prices, offering an excellent balance of quality and cost. We value open collaboration and consider all your preferences at every stage of the project. Clients choose us for our professionalism, accuracy, and commitment to quality. With Sinevir Construction, your construction dreams become reality, backed by superior results and the best fair pricing.
Very pleased with the work done by Sinevir. I hired them to build a reinforced foundation for an extension, and everything was completed to a high standard. They worked carefully, met deadlines, and used quality materials. It’s clear they know their job well. The foundation is strong and reliable. Thanks for the professional approach!
'%20rx='20'%20/%3e%3cg%20fill='%23FFF'%3e%3cpath%20d='M29.376%2016.914c-.555%200-1.006.454-1.006%201.013v37.416c0%20.578.472%201.014%201.097%201.014h34.109a1.007%201.007%200%200%200%20.972-.83%201.012%201.012%200%200%200-.161-.76l-6.446-9.416c-.375-.548-.567-1.085-.586-1.642-.034-.977.516-1.952%201.402-2.483%204.8-2.878%205.808-7.575%205.808-11.009%200-7.335-5.925-13.303-13.207-13.303H29.376ZM63.594%2059.75H29.467c-2.505%200-4.467-1.936-4.467-4.408V17.927c0-2.43%201.963-4.408%204.376-4.408h21.982c9.14%200%2016.577%207.49%2016.577%2016.698%200%205.879-2.46%2010.687-6.944%2013.607l6.17%209.017c1.37%202.002.868%204.752-1.12%206.132a4.336%204.336%200%200%201-2.44.778h-.007Z'%20/%3e%3cpath%20d='M38.767%2027.797c0-.749.603-1.357%201.347-1.357h6.427c3.979%200%206.426%201.72%206.426%205.099v.123c0%203.132-2.325%205.098-6.365%205.098h-3.848l-3.985%203.998V36.76h-.002v-8.963'%20/%3e%3c/g%3e%3cpath%20fill='%23FFF'%20fill-rule='nonzero'%20d='M18.176%2069.2h2.156v3.878h3.976V69.2h2.156V79h-2.156v-3.934h-3.976V79h-2.156v-9.8Zm16.428%207.98c.43%200%20.826-.08%201.19-.238a2.72%202.72%200%200%200%20.931-.658c.257-.28.457-.604.602-.973a3.21%203.21%200%200%200%20.217-1.183V74.1c0-.42-.072-.817-.217-1.19-.145-.373-.35-.7-.616-.98a2.96%202.96%200%200%200-.945-.665%202.873%202.873%200%200%200-1.19-.245c-.439%200-.838.08-1.197.238-.36.159-.667.378-.924.658s-.457.604-.602.973a3.21%203.21%200%200%200-.217%201.183v.028c0%20.42.072.817.217%201.19a2.959%202.959%200%200%200%201.554%201.645c.36.163.758.245%201.197.245Zm-.028%201.988a5.343%205.343%200%200%201-2.086-.399%205.187%205.187%200%200%201-1.645-1.078%204.823%204.823%200%200%201-1.078-1.596%205.029%205.029%200%200%201-.385-1.967V74.1c0-.7.13-1.356.392-1.967a5.075%205.075%200%200%201%201.085-1.61%205.05%205.05%200%200%201%201.652-1.092%205.395%205.395%200%200%201%202.093-.399c.756%200%201.451.133%202.086.399a5.187%205.187%200%200%201%201.645%201.078c.462.453.821.985%201.078%201.596.257.611.385%201.267.385%201.967v.028c0%20.7-.13%201.356-.392%201.967a5.075%205.075%200%200%201-1.085%201.61%205.05%205.05%200%200%201-1.652%201.092%205.395%205.395%200%200%201-2.093.399Zm8.14-9.968h2.324l2.576%204.144%202.576-4.144h2.324V79h-2.142v-6.398l-2.758%204.186h-.056l-2.73-4.144V79h-2.114v-9.8Zm13.152%200h7.392v1.918h-5.25v1.988h4.62v1.918h-4.62v2.058h5.32V79h-7.462v-9.8Zm13.866%209.94a6.49%206.49%200%200%201-2.198-.385%205.817%205.817%200%200%201-1.96-1.183l1.274-1.526c.448.364.908.653%201.379.868.471.215.987.322%201.547.322.448%200%20.796-.082%201.043-.245a.771.771%200%200%200%20.371-.679v-.028a.85.85%200%200%200-.077-.371.778.778%200%200%200-.294-.301%203.079%203.079%200%200%200-.602-.28c-.257-.093-.59-.191-1.001-.294a12.201%2012.201%200%200%201-1.344-.406%203.787%203.787%200%200%201-1.022-.553%202.237%202.237%200%200%201-.651-.819c-.154-.327-.231-.733-.231-1.218v-.028c0-.448.084-.852.252-1.211.168-.36.404-.67.707-.931a3.183%203.183%200%200%201%201.085-.602c.42-.14.882-.21%201.386-.21a5.86%205.86%200%200%201%201.981.322%205.743%205.743%200%200%201%201.659.924l-1.12%201.624a7.1%207.1%200%200%200-1.288-.707%203.292%203.292%200%200%200-1.26-.259c-.42%200-.735.082-.945.245-.21.163-.315.366-.315.609v.028c0%20.159.03.296.091.413.06.117.17.222.329.315s.376.182.651.266c.275.084.623.182%201.043.294.495.13.936.278%201.323.441.387.163.714.36.98.588.266.229.467.497.602.805.135.308.203.677.203%201.106v.028c0%20.485-.089.917-.266%201.295a2.66%202.66%200%200%201-.742.952%203.353%203.353%200%200%201-1.134.588%204.924%204.924%200%200%201-1.456.203Z'%20/%3e%3c/g%3e%3c/svg%3e)
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles