The quick way to find a local Cellar & Basement Conversion specialist in Watford
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.
Founded in 2025, Bfix has established itself as a leader in luxury construction and interior design. Like a hive of diligent bees, our team works tirelessly to turn dreams into reality, creating spaces that are not only beautiful but also built to last. We pride ourselves on our ability to deliver superior craftsmanship and exceptional service. What We Offer Free On-Site Inspection – We carry out a full technical assessment to identify damage to floors, ceilings, walls, and fixtures. Trace & Access Support – We assist in locating hidden leaks and identifying areas affected by moisture. Repair Planning – We help outline the works required for restoration, based on what insurers typically expect to see. Supportive Documentation – We provide clear, itemised findings that you can use if you choose to start an insurance claim. Referral to Insurance Claim Experts – If required, we can introduce you to regulated professionals who manage claims directly on your behalf. Why Choose Bfix? Unmatched Expertise: Over many years of experience in luxury construction. Tailored Solutions: Custom designs that cater to your specific needs. Superior Quality: Premium materials and meticulous craftsmanship. Customer Satisfaction: We prioritize your vision and ensure a seamless construction process.
I'm a person with a 10-years experience. I offer pro-efficient services, quality, cleanliness, a very good general service.
LONDON STARS CONSTRUCTION LTD
Cellar & Basement Conversion
London stars we are specialists in extensions, loft conversions and new builds, with full design package. Kitchen and bathroom redesign. Carpentry including flooring and door hanging. Plastering and rendering including specialist finishes. Glazing, conservatories and lantern roofs
A.R.M Response
Cellar & Basement Conversion
My name is Abdul Rahman and I have more than 5 years of experience in the construction field from all works. Including Removals Kitchen fitting Bathrooms Renovations Plumbing Brickworks Tiling Many other trades upon requests.
NORTH WEST LONDON RENOVATIONS is a well established, trustworthy, reliable and professional company. We serve Acton, Ealing, Hammersmith, Kilburn, Paddington, Brent, Westminster, Hampstead, West Hampstead, Primrose Hill and all surrounding areas of N, NW and Greater London. Our service is professional, caring, and high quality. Our customers rate us highly for our ability to stick to deadlines, and for the quality of our workmanship. We provide a professional service from the initial free quotation to the end professional finish. Our service is friendly, clean and tidy, and reliable. We consider no job as too large or too small and offer very competitive prices
Had scaffolding up very quickly. Started job on time and finished in a week. Very impressive. Good communications and reasonable price.
SS Cheema Builder Ltd
Cellar & Basement Conversion
AJW Specialists
Cellar & Basement Conversion
We are a diverse and efficient business covering all aspects of the building trade. Myself I studied at college as a bricklayer city guilds qualified. I can turn my hand to most jobs and look to offer a friendly and reliable service.
Welcome to Iosip Construction, where craftsmanship meets dedication! Founded by Ioan, with over 16 years of construction experience in both England and Romania, we take pride in delivering exceptional quality and unmatched expertise in the construction industry. At Iosip Construction, we are committed to hard work, ensuring that every project is executed with precision and excellence. The services we offer include: - Extension construction - Loft conversion - Porch construction - All aspects of Rendering & Plastering - Tiling - Full House Refurbishment What sets Iosip Construction apart is not only our wealth of experience but also our unwavering commitment to customer satisfaction. We strive to make the construction process enjoyable for our clients by providing transparent communication, reliable timelines, and, most importantly, by ensuring that you are delighted with the final outcome. Our experienced team of five professionals is dedicated to delivering high-quality results in each of these services. From expanding living spaces to enhancing the aesthetic appeal of your home, Iosip Construction is your trusted partner in construction excellence.
Excellent tradesman with very good skills and very reasonable. The quality of the work is very good and people are also trustworthy.
Welcome to D Grand Homes Ltd, a beacon of excellence in construction and home transformations with a legacy spanning over 14 years. Our skilled team prides itself on being respectful, polite, highly professional, efficient, and consistently meeting deadlines. We specialize in a wide array of services, including extensions, loft conversions, new builds, and comprehensive refurbishments. At D Grand Homes Ltd, we are committed to delivering a first-class finish to every project, showcasing a meticulous attention to detail that sets us apart. Whether you are envisioning a new living space, enhancing existing areas, or embarking on a full refurbishment, our team has the expertise to turn your vision into reality. What distinguishes us is not only our commitment to quality but also the scale of our capabilities. Our team, comprising up to 20 skilled professionals, is complemented by a network of reliable subcontractors specializing in plastering, landscaping, bricklaying, electricians, and more. This collaborative effort ensures that every aspect of your project is handled by experts in their respective fields, guaranteeing a seamless and top-tier outcome. Choose D Grand Homes Ltd for a transformative experience marked by skill, professionalism, and an unwavering commitment to excellence. Whether you're planning an extension, loft conversion, new build, or a comprehensive refurbishment, our team is ready to exceed your expectations.
Daniel provided a competitive quote. I wanted Howdens kitchen and he allowed me to directly deal with Howdens. So in effect I paid the Howdens trader price. The best part was for him to suggest some additional work which made a lot difference. I really appreciate him for that. He charged extra but it was worth it. Daniel and Team worked very professionally and finished the work as agreed. The most important is that Daniel is a good man. I will definitely call him for future work. Highly recommed
'%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}
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.
Cannot rate this company highly enough; they were brilliant. The quality of the work was great; they took pride in what they did. They came and quoted, and provided a clear statement of work on what we agreed. They completed the work quickly. Turned up when they said they would, and if they couldn't, they let me know. Really good communication. They were so polite, courteous, and just generally really nice people to have in your house.
Builder Boys
Cellar & Basement Conversion
With 10+ years of experience in the industry, Builder Boys Service brings a wealth of expertise and proven success to every project. Our extensive experience allows us to deliver top-quality workmanship, exceptional service, and unmatched professionalism. Trust in our seasoned team to bring your building visions to life with precision and dedication that only come with years of experience. We understand the importance of meeting deadlines and strive to complete every project within the agreed-upon timeframe. Our efficient planning, skilled team, and streamlined processes ensure that your project progresses smoothly and is completed on schedule. You can trust us to deliver exceptional results without compromising on quality, ensuring your satisfaction with our punctuality and dedication to meeting your timelines. We are deeply committed to providing our clients with the highest level of dedication and transparency throughout every step of their building journey. Our honest approach ensures that you can trust us to deliver on our promises and provide reliable solutions tailored to your needs. With Builder Boys, you can count on a partner who is genuinely dedicated to your satisfaction and committed to building lasting trust and relationships.
ES Building Services is a family run business with a team of highly skilled, well experienced and passionate professionals who puts your needs at the forefront of what we do. All our work is completed to the highest industry standards and compliance with current regulations is always met. We focus on providing a high end finish on all of our projects regardless of budget. We will make sure you are involved and understood at every step of the process, from design to completion. Whether it’s a simple maintenance job or a full internal refurbishment, we aim to provide a level of service that exceeds your expectations. Our predominant active contacts consist of bathroom and kitchen refurbishment work. We work alongside multiple industry leaders and have an excellent track record in providing high quality installations across London. With a skilled and mature team of professionals we have an abundance of experience in all areas of building services. We specialise in full internal refurbishments covering all aspects of the build: strip out, plastering, kitchens, bathrooms, plumbing, electrics and everything in between. With over 300+ 5* reviews accross all platforms, rest assured your property is in safe hands with ES Building Services. Kitchens Bathrooms Refurbishments Electrical installation + Everything in between NICEIC Aproved Contractor. GasSafe Registered Engineers. SafeContractor Approved.
Chereji Construction LTD
Cellar & Basement Conversion
Chereji Construction Ltd is a trusted, we boast over 8 years of industry experience.Our team specialises in a range of service, Painting&Decoration , Interior/Exterior,Bathroom Fittings, Kitchen Fittings, Tilling,Full refurbishment,Carpentry plus more! We have experience in all industry sectors including top-sec residential development.We know that our reputation is built by workforces ,so we pay great attention to their welfare,especially regarding health and safety .
Hello,I am Vasile! If u need any type of building work to be done please feel free to contact me and u will have Free quotes and good advice! Thanks and see u on the job!
Vasile and his team are working to a very high standard on tenant rental bathroom, made several recommendations on how to improve plumbing, fitted 15mm copper piping and large number of other improvements including carpentry and electrical wiring to best working guidelines, good job and a fair price, thank you
Pimlico Building Ltd is a privately owned, long established company based in central London covering London and Greater London. We specialise highly in all new builds, open plans, full refurbishment, extension and loft conversions, kitchen and bathrooms, joinery and carpentry, basement and underpinning and all plumbing and electrical works. All our employees are fully certified and insured. Please refer to our website for further details.
They were very prompt in given the quote. Done a great job very polite, efficient, knew what they were doing, and I have recommended them to my friends.
I have 20 years Main Contracting experience covering all aspects of the construction industry; from design and planning to the full delivery of new build dwellings, extensions, refurbishments, period properties, conservation works, landscaping and utilities. Utilising this experience, I now work within the maintenance sector and on smaller projects offering a more personal service whilst still providing consultant/ construction management services for the larger schemes.
Family run fabrication and welding business and construction company offering all types of manufacturing and installation that works closely with our clients our aim is to provide fabrication and welding solutions also building construction with honesty and quality also help to complete project on time
What an amazing job John did. He is a very talented ironworker . Our gate looks like it was made for our house . Would highly recommend .
Never distrust your nature....
Kris quoted and delivered a great job as scheduled and gave extra touches to achieve that clean professional finish shown in his photos. I highly recommend Kris, appreciate and value his overall commitment to service, showing dedication and hard work. I look forward to having additional work done.
S G BUILDING & Son is a family run business with over 30 years experience, covering building and general roofing. We offer a competitive, honest and reliable service, and are committed to developing a trust between the company and its customers. All our customers are offered a free quotations, all our work is guaranteed and a RAMS certificate (HEALTH AND SAFETY)is issued for each job.
Simon was very knowledgable with a wide range of skills, took the time to understand the issues faced and delivered a high quality solution. Great guy to deal with & quick communication when I had queries, would recommend to anyone.
Bonmar LTD
Cellar & Basement Conversion
'%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