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

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.

RCB Group Design and Build – Turning Your Vision into Reality At RCB Group Design and Build, we specialize in residential, commercial, and bespoke construction services. With 60+ years of combined experience, our team is committed to delivering exceptional craftsmanship, transparent pricing, and seamless project management from start to finish. Our Services Include: Design & Build: We manage your project from concept to completion, ensuring timely delivery and flawless results. Home Extensions & Loft Conversions: Maximize your space with custom-designed extensions and loft conversions that add both value and functionality. Renovations & Refurbishments: Tailored solutions for updating or transforming any part of your home or commercial property. Commercial Projects: Office fit-outs and retail space renovations designed to meet your business needs. Bespoke Design & Build: We specialize in custom homes and commercial spaces that reflect your unique vision and functional needs. Why Choose RCB Group Design and Build? 60+ Years of Experience: Our senior management team brings decades of expertise, ensuring high-quality results across residential, commercial, and bespoke projects. Fully Insured & Guaranteed: We are fully insured with £5 million public liability insurance and offer third-party backed guarantees through TrustMark and Federation of Master Builders. CCTV Project Supervision: Track your project remotely with real-time CCTV, giving you full transparency and confidence. Transparent Pricing: What we quote is what you pay—no hidden fees or surprises. Proven Track Record: Our portfolio and client testimonials showcase our commitment to delivering high-quality results on time and within budget. How We Work: Consultation & Design: We start by understanding your vision, needs, and budget to create a customized solution. Detailed Quotation: We provide a transparent quote and step-by-step plan to ensure everything runs smoothly. Project Execution: From securing permits to final touches, we manage all phases of the project with precision. Completion & Handover: We ensure you’re fully satisfied before we consider the job complete. Contact Us Today Looking for a trusted partner to bring your dream project to life? RCB Group Design and Build delivers exceptional craftsmanship, clear communication, and reliable service. Get in touch today for a free consultation, and let’s bring your vision to life.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by james on 10/11/2020

The team that worked on our build have worked extremely hard since starting and their attention to detail is excellent, the team really cared about the quality of their work which showed in the end result. They were always very friendly and tidy throughout the build, very pleased!

Citywide offer domestic roofing services across SE London. We take on projects of all sizes ranging from small roof and gutter repairs to complete removal and replacement of full roof coverings. Our team offers over 20 years of combined roofing experience and can deliver outstanding results for a very reasonable price.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by jeremy on 16/1/2025

Daniel went over and above to help us. Thoroughly recommended!

I'm an experienced builder and cover all areas of building work including loft conversions, extensions & refurbishments. My company's aim is to provide a professional, reliable honest service. Every job big or small is done to exceptionally high standard.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Myra on 13/11/2019

The team accommodated some additional changes and unforseen jobs and any issues that came up were addressed as quickly as possible. The team were polite and curteous at all times. We have just requested some additional works with this company.

Highly experienced bulder with a proven track record of completing project on time and on budget. I have deep understanding of bulding codes and regulations and I have the technical knowledge to design and cost effective structures . I have strong commitment to safety and quality, and I am an excellent problem solver with a knack for finding creative solutions.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Caroline on 26/1/2025

ROOF TOP CONVERSIONS THE COMPLETE BUILDING COMPANY. WELLCOME TO RTC WE HAVE BEEN CARRYING OUT BUILDING WORKS FOR OVER 25 YEARS. HEAR ARE SOME OF ARE WORKS . LOFT CONVERSIONS+ HOME EXSTENSIONS+ GARAGE CONVERSIONS +

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Clive on 23/10/2023

Roger and his crew achieved a complete fire door and frame (with fitments) replacement in a single day. They left my flat clean and tidy and were away by 3.15pm. Great work

Welcome to Craftsman Construction Ltd Why choose us? We are General Builders, Roofers, Ground workers (including Quality Driveways and Patios, Fencing and Turfing), Bricklayers, Painters and Decorators. We provide a complete building service from top to bottom. We provide a 10 year guarantee on all jobs. Craftsman Construction carries Public Liability Insurance. No job is too small, or too large. We only use quality materials from well known manufacturers. All our work is guaranteed and we provide written estimates for all our projects. Call our team today for free help and advice.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Cimi on 13/10/2020

Absolutely happy with the work Very friendly guys Thank you Valter for your amazing job

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Lorraine on 14/1/2025

Had a bedroom door fitted vert good

CBS Builders Service is a London based company with over 12 years experience operating throughout the North West and City of London.We offer a full range of services including, house extension ,loft conversion,renovation and construction works.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Sedef on 28/4/2021

Wieslaw is great to work with!

we are a builder specialist over 15 years of experience with liability insurance .

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Philip on 25/3/2025

George was prompt, courteous and professional. The decoration work was done efficiently and with attention to detail. A clean and thorough job. I would have no hesitate in recommending him and his team for similar projects.

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 award-winning claims management service aims to help policyholders throughout the UK make successful buildings insurance claims caused by storms, burst pipes, accidental damage, fire, floods or other events which lead to the property owners needing to make an insurance claim. We project manage and carry out the required repairs using our fully vetted contractors. Aspray always strive to reinstate the property to its pre-incident condition as swiftly as possible. Aspray Ltd are authorised and regulated by the Financial Conduct Authority for claims handling only.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by John on 14/5/2023

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

Purple Stott Ltd is a family-run business, specialising in all building work including extensions and conversions, patios and fencing and all landscaping work. We cover North Devon and some surrounding areas. We have developed a reputation for quality, reliability and service.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jeannette on 27/4/2018

Very personable chap who listens to the customer. Very meticulous. Happy with the works carried out.

We are a family firm and have been established for forty years. All aspects of building, all your needs under one roof. Free estimates and a very friendly service

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by peter on 26/4/2025

Absolutely perfect job, discussed, what need to be done, brain stormed, best way to do job, floating floor best option, discussed price, booked job, for 3 weeks later. Very professional, good price, did job, cleaned away rubbish, absolutely perfect experience

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 Simon on 22/8/2025

I'd have no hesitation in recommending Craig or using his services again.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Ola on 21/12/2011

Trevor kept his promise and got the job done to a high standard despite the weather turning out to be very wet. He was very business-like and assuring in his approach. I will not hesitate to recommend him for a similar job.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Gary on 9/3/2011

C J Blake & Sons were outstanding, the quote was spot on and the work was the same. they were there on time everyday and charlie couldn't do more to help.Very polite, very very tidy. I would recommend them to anyone.

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

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