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

Post your job for free. Get quotes. Read reviews.

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.

Welcome to Certified Group Limited, We are a sister company to Certified Gas Heating Ltd. Started of as a dedicated and driven apprentice who started working within the plumbing trade from the age of 15. Established in 2012, We are a fast growing company accommodating your plumbing, heating and gas utilities effectively. Over the years we have started to offer other services which include: Electrical, renewables, drainage, carpentry, roofing, property renovations and kitchen extensions hence the reason for the name change as it fits our image at present. We at Certfied group are known for being professional, organised and enthusiastic at all times. We are approved contractors rated a “5 Star company for quality services” on Which Trusted Trader, Trust Pilot and other platforms. We at Certified group have a fantastic reputation for our hard work, performance, quality and efficiency. We are based in Greenwich SE10 London and cover whole of the capital and surrounding areas. We offer a 24/7 emergency services, Landlord safety certificates, Central heating and boiler installations, Breakdowns, Repairs, Power flush and more.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Leona on 14/6/2024

Great experience with Aziz and team. They provide lots of advice and a detailed quote before starting any works. The work was quick and efficient and they were super tidy throughout the whole process. All works were completed to a high standard and we are so happy with our newly installed radiators. Thanks again for the amazing effort

The Green Machine will provide you with professional high standards of workmanship with many years of experience and many happy customers so choose us with confidence.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ollie on 3/6/2025

Ben did a great job cleaning my patio and garden wall. It looks so much better. Highly recommend

Fox construction has 25 years experience in the construction industry and we take pride in what we do that's why we have so many satisfied customers.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Chris on 15/10/2023

Constantine and Costas are the best builders we've ever worked with. They are inspired collaborators and problem-solvers, passionate about their craft and keen to deliver what you want at the best price without cutting corners. They also have excellent plumbers, tilers, painters etc - without exception skilled, reliable and a pleasure to meet. Renovation is a stressful experience but we were amazed how much we enjoyed this period. We miss them! Don't let them slip through your fingers!

Based in south east Kent ,Here at KA BUILDING & LANDSCAPES we provide a friendly and reliable service with over 15 years experience Within the construction & landscape industry. We Undertake all construction & landscapes works from small jobs to full garden designs to extensions/conversions. I have highly experienced tradesmen that work along side me to complete the work to a very High standard. Having worked as a subcontractor for big company's for years ,on multi million pound landscapes & construction contracts Iv developed the knowledge & been taught the way to get the job done safely ,efficiently and too very high spec. free site visits and quotes on request.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Neil on 2/7/2025

Kane and his team done a fantastic job for us by laying a hard standing for a new shed, new fence panels with concrete post and gravel boards and a brand new driveway. They were very professional, courteous and left everything clean and tidy at the end of each day. We are very happy with what they done for us. They even carried out some work for my in-laws after seeing what our result was.

Our team consists of Painters and Decorators who takes great pride in the work we do. Our aim is to ensure a 100% customer satisfaction. We believe in quality of work and will always aim to deliver the best quotes and quality of craftsmanship possible. We are reliable, and will always aim to charge the given price at quotation. I accommodate services for both domestic and commercial clients. We offer quality advice and services. Our services include: Exterior Painting, Painting and Decorating, Wallpapering, Wooden Windows stripped and painted, Free No Obligation Quotes Guarantee of Work Carried Out Please contact us with any queries or questions.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by john on 18/6/2025

Remi did very good job repairing/ remodelling a broken wall. They got on with the job and worked on it for five days. Price also seemed fair to us. Highly recommend

London/ Essex - Surrounding areas I am a hard working with great attention to detail, I ensure all the work I carry out is to a high standard and I take pride in what I do. I make sure that I am fully equipped for the job and make sure customers are always happy.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jenny on 12/3/2025

We as a company we take on all roof, pitch or flat and lead roofs. We also do all lead work and lead welding. No job is to big or small for us we cover all new roofs and repair. We take on all work we do all fascia and guttering as well. We do gutter and fascia cleaning. We like to help everyone out so if you want any advice or a free quote please get in touch. We done all kinds of building work from garden wall to extensions we do all landscaping and patio. We can do all your fencing. Weather it is a small job or a big job we will look after you all through the process ?? Many thank from G.Scott roofing and building services

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Oscar on 15/3/2025

We have 15 years of experience within the industry. We offer a wide range of services: Laminate Flooring Floor Tiling Door / Window painting External wall painting Internal Painting & Decorating Wall murals / Paint effects Wall Tiling We work hard and clean and make sure that our clients are happy.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by giulio on 15/4/2025

Alin is reliable, punctual, and honest. We agreed the price of the job and I did not have any surprise, and when we had to do something extra he was very reasonable with price. He and his team started on time, were very respectful, did a good job, and are very easy to work with. I would happily work with them again.

Hello, We are a multi-trade team, with a 10 year experience in the UK and previous in Italy and Germany. We are new to this platform, hence the revews :) We pride ourselves in providing fair quotes and being professional and efficient Our skills range from cleaning roofs, gutters cleaning, pavement, building fences, gardening and landscaping, annex or conservatory building, house demolition or clearance, rubbish collection and disposal, to any type of interior jobs, such as: fitting, carpentry (first fix and second fix), dry lining, flooring, painting, studwork (metal or wood), tiling, bathroom and kitchen fitting and so on. There’s no job too big or too small!

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Janice on 16/7/2025

Did a very good job arrived on time and cleaned up any mess very pleased with the finished job

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by bryan on 15/12/2008

Still awaiting Invoice, job done well and quickly

Damp Proofing, Structural Waterproofing, Dry Rot, Woodworm & Timber Treatment specialists. Director Terry Read has over 40 years experience in Structural Waterproofing. Alex has over 10 years experience and was one of the first in the country to obtain the PCAQT in structural waterproofing. Trustmark registered. Full members of the PCA for over 12 years. Contact us for a free survey. Registered Installers for Delta Membranes. PCA qualified CSSW & CSRT certificates held. We install and maintain both ground water and foul basement pumps. All work guaranteed with a GPI Insurance backed guarantee available as an option; for a one off premium. We have one million pounds Public Liability insurance and full Professional Indemnity Insurance.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Pete on 9/2/2019

I honestly cannot recommend Terry and his team enough. They have done and excellent job, kept us totally informed through out the whole process. The level of care during and after the work is excellent. Great team keep up the great work. Thank you

Hi there,We from THT construction are kitchen fitters with 20 years of experience in the installation of kitchens and bathrooms, also we can help you with wooden floors (exterior and interior) including engineering wood, laminate and many others materials. We have extensive experience in installing kitchens Ikea, Wren, Howdens, B&Q.We have team of specialists in the field of construction of lofts, bathroom extensions and more. We are equipped with the types of tools and our own transport.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Deborah on 14/12/2019

I was very pleased with the work carried out. They were very tidy and got the job done to my satisfaction. The team arrived punctually and were willing to carry out other small jobs for me at the same time. My overall rating is that I would highly recommend them and will be contacting them in the future for other jobs I have. They are more than helpful and very polite nothing was too much for them.

Welcome to Reassured Home Improvements Reassured Home Improvements is a well-established company that has built up an enviable reputation over the last 22 years. We pride ourselves on our commitment to provide a professional and Reassured service at all times, whilst maintaining the highest quality of work. We have a proven track record of innovative designs, effective problem solving and attention to detail and our goal is to meet and exceed the expectations of every customer. We take on all types of jobs from small domestic work to refurbishment of kitchens and bathrooms, painting, decorating, plastering and maintenance. All work is carried out to the highest standards and at very competitive prices. We also have excellent customer service as we deal with customers on a day to day basis. We have full public liability insurance. We are very much looking forward to doing business with you soon.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Helen on 5/6/2017

Adam was nice and clear about costs and how the job would proceed. The work was carried out quickly, professionally and tidily. Would recommend.

We are a general building company based in Buckhurst Hill ,Essex, With over 20 yrs experience within the building trade . We pride ourselves on providing a reliable and trustworthy service completing all work to the best of our ability. Trades we offer General building Extensions Loft conversions Plastering Renovations Bricklaying Kitchen Bathroom Tiling Ornate plaster work I am also on checkatrade so feel free to look at the pics and reviews on there

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Errol on 8/11/2021

Lee was brilliant. Friendly professional, arrived when he said he would and got on with the job. Did an excellent job building an internal wall and fixing a sliding door at a reasonable price. Lee even helped giving me a lift to my kids school lol. Would highly recommend

Whatever the demands of your refurbishment project, Progressive Design London has the full palette of professional building services to help you meet and then surpass your expectations. If you are looking to fit out your current property, or are considering investing in somewhere new with an eye to redevelopment,we can be your expert partner through every phase of the project. Adding value to your property is not something that can only be measured in house prices. Complete refurbishment represents a rare chance to set up a property exactly as you would like it and you will want to make sure you have expert advice to make the very most of such an opportunity. We can help with the development of plans and design ideas, with issues of building regulations and planning permission and the complexities of external decoration, roofing, glazing, conversions and extensions. We can also take care of all your re-wiring, plumbing and heating requirements, fit your kitchens and bathrooms, and set our expert team to work on the bespoke joinery, cornicing and interior decoration that will add the final touches to a home of enviable quality. At, Progressive Design, we set ourselves the very highest standards, not just on craftsmanship, but also in terms of meeting deadlines and budget requirements. If your project involves a listed or period building, we will relish the opportunity to conduct the structural and aesthetic repairs while staying perfectly true to the original stone, brick and woodwork, and any other features that make your property so special.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Fabio on 9/8/2015

In a nutshell, Marius and his team are great. They're kind, respectful and Marius is always available to answer every question you have - he def is the most knowledgeable builder I've spoken to. You get a very transparent estimate and sign a contract, for both parties' peace of mind. If extras come up, Marius openly discuss them with you before taking any action - my job required quite a few and Marius was also great to stay competitive price-wise whilst keeping the quality of the work sky-high.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by kayvon on 9/9/2011

Damion from swift & neatmuilttrader ltd was fantastic!! he came & viewed the chimney, gave me a very reasonable quote, also didn't make a fuss as some other roofers did!! did the work in under 30min.. excellent job, he very professional. will be using him again on other bits around the house! 5 Star.

EUDECOR avatar

EUDECOR

Cellar & Basement Conversion

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Dave on 27/4/2011

Norbert and Raymond delivered a very prompt quotation which was sufficiently detailed for me to make a decision on the work. They were keen and diligent throughout the project, working hard for a very fair price. Their attention to detail was excellent, they didn't skimp on quality and worked tirelessly for 7 continuous days to deliver as promised. I'm very pleased with the end result - a paved terraced garden engineered with drainage channels, brickwork and timbers. I can definitely recommend them for similar work.

Design, building, refurbishment and development services offering the highest levels of quality, service and finish. Federation of Master Builders Approved

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Maria on 1/2/2019

Great service by Dan. Very experienced in the know how and Professional results. Would use them again.

Our company's mission is to ensure the most qualified and professional services for our customers.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ade on 24/6/2018

I don't have enough words to describe the job done by this tradesman. Negotiations was smooth, and he and his team did my job hassle free. Their price was very competitive and to a high standard. I am so happy that I made use of them.

citybrick avatar

citybrick

Cellar & Basement Conversion

Fast, professional, reliable and highly experienced. Citybrick covers all London, we deal with all of your maintenance problems.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ali on 24/5/2019

Great job, great communication, helpful, friendly and listened to what I wanted. Would definitely recommend.

Post your job for free

app-icon

Get our app for homeowners

  • Send messages and get notifications from tradespeople
  • Add photos to get more accurate quotes
  • View tradespeople's profiles