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

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.

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

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Nicholas on 2/2/2024

Had scaffolding up very quickly. Started job on time and finished in a week. Very impressive. Good communications and reasonable price.

Nextlvl Construction (London) We carry out renovations, extensions and building work across London and nearby areas. We’ve been trading for 7+ years. We focus on jobs being: properly planned kept tidy finished to spec done with clear pricing and communication What we do: Extensions & conversions: lofts, basements, garages Renovations: full refurbs, layout changes, structural work Kitchens & bathrooms: rip-out to finish, including plumbing and electrics Carpentry & joinery: fitted units, doors, stairs, custom work Roofing & exterior: flat roofs, fascias, soffits, cladding Finishing: plastering, tiling, flooring, painting and decorating Security & tech: CCTV, alarms, AV installs Cleaning: post-build and end of tenancy How we work Written quotes with a clear breakdown Realistic timelines and updates as the job progresses Site kept tidy and waste cleared Building regs considered from the start Snagging handled properly before sign-off If you’re planning work, we can take a look and provide a free quote. - Fully insured. - References available. - Before and after photos of recent work available on request. - We can work to drawings or help you plan the build. - We’re used to working in occupied homes.

We are one of the best building and renovation company in London since 2011. Our experience taken over many years and different architects helping us to provide a service meeting the highest quality standards in every detail, making our homes and city beautiful...

With over 10 years experience, our well qualified and certified team of hard working craftsman and specialists have a proven record of quality workmanship. We will help you with Painting & Decorating, Surface Preparation, Surface Protection, Storage Solutions, Bespoke Furniture and Carpentry. Most of our jobs are residential projects. When a homeowner works with my team, the process will look like this: - I offer a free visit to meet the client and discuss the job further, - Then I sent a quote and clearly explain what should be agreed before the job begins. I am always open to discuss end explain my quotes, - As soon as the job is confirmed, the client and my team agree on the start date, - We make sure the surroundings are protected before the job starts - We order the materials - We complete the job - When the job is finished, I always leave the floor protection for one day to make sure the client's expectations are met (or exceeded!) and once my client is happy I remove the floor protection and clean around. We are creative, we care and we exceed our clients' expectations. The protection of the surroundings is included within the initial quote, our highly skilled team of trade specialists focuses on high quality results and the materials supply and advising happen at no extra fee. Lastly e most important, a homeowner should choose West Home Renovations because we make your remodelling process stress-free and easy!

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Nel on 8/12/2022

Very communicative. Did a brilliant and thorough job. Would not hesitate to recommend. Thanks so much!

Expert Damp Proofing & Property Preservation Services Home Building & Surveying Company is a leading provider of damp proofing, wall coatings, and property preservation services across the UK. With over a decade of experience, we specialise in protecting residential and commercial properties from moisture damage, mould growth, structural decay, and woodworm infestations. Our team of certified professionals ensures every project is completed with precision, using cutting-edge techniques and high-quality materials to enhance your property’s durability, appearance, and value. Why Choose Home Building & Surveying Company? - Over 10 Years of Industry Experience - Certified Damp Proofing Specialists - Tailored Solutions for Homes & Businesses - Guaranteed Long-Lasting Results - Competitive Pricing & Free Consultations Comprehensive Property Protection Services 1. Damp Proofing Solutions Moisture can cause severe damage to your property, leading to mould, decay, and structural instability. Our damp proofing services prevent water ingress and rising damp, ensuring a dry, healthy indoor environment. 2. External Wall Coatings Enhance and protect your home’s exterior with our advanced wall coatings. These weatherproof solutions defend against harsh UK weather, preventing cracks, damp penetration, and fading while improving kerb appeal. 3. Basement Waterproofing & Tanking We offer expert basement tanking services to prevent water damage and create dry, usable underground spaces. Whether converting a basement or preventing flooding, our waterproofing solutions provide peace of mind. 4. Mould Removal & Prevention Mould not only affects property aesthetics but also poses health risks. Our mould remediation services eliminate mould growth and prevent future infestations, ensuring a safer and cleaner living space. 5. Woodworm Treatment & Prevention Protect wooden structures from decay with our specialised woodworm treatment services. We use industry-approved solutions to eliminate infestations and prevent future damage to beams, flooring, and furniture. 6. Condensation Control Solutions Excess condensation can lead to damp walls, peeling paint, and mould growth. Our ventilation and insulation solutions help regulate indoor humidity, creating a more comfortable and damage-free environment. At Home Building & Surveying, we are committed to protecting and enhancing your home or business with industry-leading damp proofing and property preservation services.

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

Ian came round to take a look at a damp patch that had started showing up on one of the utility room walls. He turned up on time, was really friendly, and clearly knew what he was talking about. He gave everything a proper check over and explained what was likely going on in a way that actually made sense. He didn’t try to make a mountain out of a molehill or push for any unnecessary work—just gave honest, practical advice on what to do next. Really appreciated how straightforward and helpful he was. Would

Monta Ltd avatar

Monta Ltd

Cellar & Basement Conversion

We offer bespoke furniture and construction to commercial & private clients. Fully equipped manufacturing facility with spray shop / in house tinting machines for paints and polished plasters. We offer: Home extensions Loft conversions Structural work Underpinning Internal refurbishment Basements Furniture, made to measure: Bathroom cabinets Kitchens Wardrobes and other bespoke furniture.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Darren on 9/5/2025

Monta Ltd where very professional and extremely helpful throughout our bathroom refurb. They offered advice throughout the process and never gave any hard sale but explained the options and what it would mean and cost for any changes to what we wanted. The final outcome was a beautiful bathroom that makes us feel like we are in a top class hotel.

Christian avatar

Christian

Cellar & Basement Conversion

C C D General Building is a company designate to take care of your job from the quote job to the end of it

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Sajjad on 1/6/2020

Christian reversed the swing of the door for me in a room. He quoted quickly and his price was fair. He came quickly and did the job well. Would like to work with him in the future

As 10 years experienced with my team of great builders to provide my clients with the Design and Build service: * Extension Builder * Loft Conversion Specialist * New Home Builder * Conversion Specialist * Restoration & Refurb Specialist * Paint & Decoraters * Plumbing & Heating * Kitchen Fitter * Bathroom Fitter * Flooring Fitter * Tiler * Electrician * Insulation Installer * Bricklayer * Groundworker * Architectural Designer * Plaster * Roofer * Garden, Landscaping & Fencing

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by julia on 8/8/2020

Very happy with the gardening work. Also various other work around the house that he undertook for me. Very accommodating. I will be using this company again

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.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Dewang on 10/10/2017

Excellent tradesman with very good skills and very reasonable. The quality of the work is very good and people are also trustworthy.

LMDEC LTD avatar

LMDEC LTD

Cellar & Basement Conversion

***** For Higher resolution of Photos please go to our website ***** We bring the professionalism, skill, accountability and process management of big building projects to day-to-day property maintenance and repairs. Our approach to providing the highest quality maintenance services is very simple – it’s all about trust, competence and integrity. It’s what you get with LMDEC LTD every time. It has guided our principles from day one and it is why we’re chosen time and time again for a huge range of essential and aesthetic jobs, large and small, for thousands of properties across the London area – it’s all about trust, competence and integrity. It’s what you get with LMDEC LTD every time. Construction services: Home Extensions, Kitchen Refurbishments, Loft Conversions, Bathroom Refurbishments, Painting and Decoration works, Plumbing and Heating services, Electrical installation services Renovation works, Roof works, and other Building services.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Janice on 8/9/2019

Lukasz and team did a great job with our kitchen refurb project. They stripped out our old kitchen completely, re did plumbing/electricity and installed new units & tiles etc. They were polite, hardworking and easy to work with. Would recommend!

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!

We are a small family run business, our services include New builds, lofts, extensions, refurbs, we also take on small refits kitchens, bathrooms, gardens, structural alterations and ground works, plumbing and electrical. We aim to provide a comprehensive build package under one umbrella. Since opening our business in 2016 our main principle is "never cut corners or standards". We have managed to grow the business in the last few years immensely and establish ourselves as a recognised name. We aim to minimise stress for our clients by offering our expertise in all areas of the construction process and undertaking comprehensive project managing services with design consultation service also available throughout your project. We can provide all the services above by our own in-house team not 3rd parties or sub contracting. If you would like to know more about the work we do or would like a quotation for a project, please send us a message from the contact page or give us a call. We aim to respond to all queries within 48 hours.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by nicola on 26/8/2025

i used julian for the job i wanted done. it was completed in a couple days. he was on time and conscientious.really happy with the result.

Edi Hasani avatar

Edi Hasani

Cellar & Basement Conversion

E&H Building offers a range of services and repair for your house in general Flat roofing Guttering Roofing Fencing Reinforce Steelfixing Rc frame knowledge Ground works Gardening Block paving Tiling Extension and so on E&H building service comes as a new family company trying something new in live to have more flexibility for my self and family It comes with experience of the past 16 yers working in construction with a lot of knowledge in general and very confident were we stand For the past 3 yers it has the privilege to work with some of the best Constraction companies such as Okeefe Ltd and Keltbay construction as one of their Quality Enginer on their sites making sure the finished touches are in perfection to their specifications So our main goal as a new company is to deliver Quality and assurance to our costumer Thank you

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Matt on 24/1/2024

Edi was quick to respond and could jump in on the job straight away - quoted a good price and did the work the same day, much appreciated.

All exterior works undertaken no job to big or small with over 20 years experience professional workmanship is our key making costomer’s happy is our goal. Find us on Facebook goggle my builder bark checkatrade rated people and much more fully Insured

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Kevin on 25/11/2022

Very satisfied with the work. Would recommend .

Hi this is A.S. Harrison and my name is Craig Harrison. We are an electrical and mechanical business in the heart of Essex. We serve Essex and London, but are always happy to travel further afield for bigger projects. Customer satisfaction has always been at the heart of everything within our organisation. With nearly 20 years experience we are more than capable, and willing to meet all your needs. I come from a commercial background, I’m bringing all the skills & knowledge I have gained to the domestic world. I trained as an apprentice many years ago! I have all the accreditations including NICEIC, level 2 and 3 electrical, test and inspect and i am JIB approved. We use only the best tools & materials in the Industry. We Employ the most qualified, experienced Electricians, who’s attention to detail is of paramount importance to me. We are always on hand to help & offer advice. As a team we run the project for you in the background. Taking the stress out of the job at hand is why so many of our clients return again and again. There is no lack of contact or waiting to be phoned back with us we can assure you of that. We have an enviable track record at delivering a friendly, professional and first class service. Give us a try and see for yourself. Please do take a look at our website for a more in-depth look at what we offer. We look forward to seeing you soon. Thanks in advance from all of us at A.S. Harrison.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Justin on 3/11/2022

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
full starfull starfull starfull starfull star
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!

At TS Property Maintenance LTD we provide comprehensive home maintenance solutions to keep your property in prime condition. Our team of skilled professionals are dedicated to deliver top-notch services that ensure the comfort, safety, and functionality of your home. Whether you need routine maintenance or specialised repairs, we’ve got you covered. www.sthomemaintenance.com Insta- sthomemaintenance

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Jacqueline on 11/10/2023

Very professional work, and to a high standard. Very polite and extremely pleased with the work. I would highly recommend this gentleman

CH constServices takes great pride in the work we do and the competitive prices we offer. We are always aiming to make sure our customers are satisfied and that they return to us. We are fully guaranteed on any job we do and willing to work any size job.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Andrew on 1/5/2024

Very pleased with the finished results of our flat renovation.

We offer a full and comprehensive range of residential and commercial building services like bathrooms, kitchen,patios,loft conversion,extensions ,internal and external building work.More than 20 years of experience and highly quality construction

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by denny on 22/12/2019

Excellent, from start to finish. Very professional. Cesar and his partner were excellent in their work. I'm giving them 100% Feedback and will be keeping their number.

We are landscapers who build to best of our knowledge and skills. Our aim is to create outdoor space for living that exceeds your expectations. We offer unique mix of enthusiasm with extensive experience gained on projects around SW London and Surrey.

Latest homeowner review
full starfull starfull starfull starfull star
Reviewed by Steve on 22/5/2020

Oliver and team did a great job with our front drive. The design and outcome were closely matched, quality is good and the project came in exactly on budget / quote. The project included multi-leaf automated sliding gates which had some unique aspects to the design requirements, but Oliver found the solution and it works well. Would recommend Oliver and Tree & Stone team to others. Satisfied customer!

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