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

Super Smart Builders Limited

Cellar & Basement Conversion

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From stunning home extensions to innovative loft conversions, our expert team transforms properties across London , Kent , Essex and surrounding areas with nearly three decades of trusted craftsmanship. From concept to completion, we bring over 25 years of expertise to every project across. Extensions Add the space you need with extensions that complement your home . Loft Conversions Turn your unused loft into a functional room that adds real value to your property. Renovations Refresh and modernise your home with renovations that make a real difference. General Building From repairs to major building work, we handle projects of all sizes with care. New Builds Complete new property construction built to your specifications and the highest standards.

Latest homeowner review

Reviewed by Annabel on 15/7/2026

Arnie was a great builder to work with throughout the kitchen and bathroom renovation. He did an excellent job, took the time to understand exactly what we wanted to achieve and had great attention to detail and worked with us to ensure we could stay within budget. It was our first time renovating a property and Arnie was incredibly helpful and reliable. I would definitely recommend working with him.

London Underpinning

Cellar & Basement Conversion

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We specialise in structural works, underpinning, steelwork and basements. Our experienced team are also experts in damp control, waterproofing and tanking solutions and all our work is guaranteed, offering our clients complete peace of mind.

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Reviewed by Lisa on 9/3/2023

We had a retaining wall fixed in our basement. Kevin was great at communicating and helpful with the issues we had. The team working were great, polite, and kept the place clean and tidy each day. Very reliable. Thanks!

LCC GENERAL BUILDING LTD

Cellar & Basement Conversion

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Multi-Trade specialists covering across the capital and surrounding areas, joinery , carpentry , electricians , plumbers ,Plasteres , decorators ,kitchen fitters .

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Reviewed by Ash on 19/9/2021

I had a very bad experience. Builder was rarely around. No project managers to watch of tilers, floorers, carpenters.

JC developments

Cellar & Basement Conversion

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Carpentry / Construction & Building Company Specialising in small to large scale projects. Specialised in Carpentry, Kitchens & Bathrooms

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Reviewed by Jay on 11/5/2026

Everts Construction LTD

Cellar & Basement Conversion

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hard working reliable and professional, years of experience property developing

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Reviewed by Steven on 16/4/2024

Jake and team arrived on time and cracked on with a massive clearance job. Always smiling and very polite. Completed in just under a day and a half and we are very happy. Tidy and clean, well as best as you can with garden and builder waste removal. Neighbours will be happy now with our clear front garden. Thanks Jake and team. Worth every penny

Smart Builds

Cellar & Basement Conversion

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Smart Build Construction We are a Building Company with 28 years’ experience. Our team of highly skilled craftsmen carry out certified and fully insured work for both domestic and commercial customers. We can deliver the following services to a high standard. - All aspects of Refurbishments - Interior Design - Fitting kitchens and Bathrooms - Painting and Decorating - Extensions - Loft conversions - K- Rend / Silicone Best Regards Sl.

Build To Precision

Cellar & Basement Conversion

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Build to Precision Group brings over 20 years of experience in the construction industry, delivering high-quality workmanship across residential and commercial projects. Building on this solid foundation, we have recently expanded into a dedicated maintenance division, offering reliable, efficient, and professional property maintenance services to meet our clients’ ongoing needs.

Trent Build Construction

Cellar & Basement Conversion

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Trend Build Construction is a building company covering all aspects of construction and landscaping. With qualified and experienced builders, they pride themselves on offering professional services that are convenient to customers and price competitive.

Latest homeowner review

Reviewed by Vivian on 3/4/2024

Excellent job done, friendly people. They took my project like their's. No issues from start to finish. I highly recommend them. Thank you to Alan, TEodor and Daniel.

AD RENOVATIONS & CONSTRUCTION

Cellar & Basement Conversion

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AD Renovations & Construction Ltd is a group of creative/professional bathroom fitters who provide cost effective services. With over 24 years of experience our team has worked with a wide range of clients. We will take full responsibility for the bathroom renovation project,handling all stages from planning through completion,and keep an open line of communication with you at all the time. -Professional and experienced staff -Deliver project on time and on budget

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Reviewed by Bayo on 21/10/2025

Disappointed to say the least, Anna got in touch after we posted our job advert, she ask for further lead on a job that was urgent fix to a leak for us, sent all additional requested info on job lead to her and she never got back or even bother to send someone out as agreed, extreamly poor customer service for a start and i definately wont recommend

Domward

Cellar & Basement Conversion

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we are a small company, consisting of four employees. Our motto is that a satisfied customer will bring two potential customers, quality is our main goal.

DODO Construction

Cellar & Basement Conversion

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Hi we are Team of 5 people we do From A to Z All Job

Chameleon Refurbs

Cellar & Basement Conversion

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Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence.

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Reviewed by Denise on 24/4/2026

London City Roofing & Renovation

Cellar & Basement Conversion

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London City Roofing & Renovations ltd is an established and trusted company with over 20 years experience, offering all aspects of roofing and building services. We are based in Wembley (London) serving all of London and surrounding areas within 100 miles.? We pride ourselves on our punctuality and quality workmanship, offering a prompt and professional service with experienced and expert staff. We guarantee a friendly, clean and tidy service with all work being to the highest standard. We are fully insured and all work is guaranteed. All our tradesmen are experienced and qualified in their respective trades. We specialise in the following: Roofing services: UPVC Fascias & Soffits Cladding Guttering Bargeboards Flat Roofing Chimney Repairs Tile & Slating Work Re-Roofs Lead Work General Building Work Fibre Glass Roofing Double Glazing Building services: Home improvements Kitchen Fitting Bathroom Fitting Extensions Loft Conversions Garage Conversions Bricklaying Plastering Comprehensive driveway and paving service, including: Driveways Drop Kerbs Patios Paths Block Paving Concreting Tarmacing Car Port We offer free quotes

Latest homeowner review

Reviewed by Richard on 22/11/2024

John and the team did an outstanding job. It was easy to work with John and he was very knowledgeable, and provided very sensible advice. Other people quoted work which was over-the-top or wouldn't have solved the problem but John got right to the issue in a no-nonsense way. Quality of the work undertaken was very good, considering the age of the building and complexity. Would recommend.

STANART CONSTRUCTION LIMITED

Cellar & Basement Conversion

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????? Service Introduction – Carpentry & Roofing STANART Construction Limited Hi! My name is Stan ,and I lead a skilled and reliable team with 12 years experience in carpentry and construction work We provide complete, high-quality services for both small and large projects, indoors and outdoors. Our specializations include: ?? Carpentry work – doors, windows, stairs, custom furniture, terraces, pergolas, wardrobes ?? Roofing – full roof installation, repairs, renovation, timber framing, tiles/shingles, gutter systems ?? Organized, well-equipped team – ready to handle complex projects to a high standard ?? Punctual, clean work and clear communication throughout the job CSCS Level 2

Five Star Construction

Cellar & Basement Conversion

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Five Star Construction is a family run business with the aim to provide affordable handyman and development works. We are full insured and all our operatives are fully trained for the work we carry out. Our friendly team are awaiting your call

Latest homeowner review

Reviewed by Thomas on 30/4/2024

Good value Very profession Quick and tidy workman Would definitely use them again. Regards Thomas

Lambarde Carpentry Ltd

Cellar & Basement Conversion

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Lambarde is located in the Sidcup area and covers most of the South east, we have a combined experience of 62 years, I started carpentry and building work as soon as I left school then going to college for two years becoming a fully qualified carpenter with Levels 1,2, NVQ Diploma. All of our team carry public liability insurance, so you’re in safe hands. We also work alongside other fully qualified trustworthy tradesman for our refurbishment works. We pride ourselves on: • Workmanship • Time keeping • Honest communication Portfolio on Instagram: Lambarde_ We specialize in: • extensions •.Loft conversions • Kitchens • Internal and external doors • Skirting and architrave • garden room/man caves • wall panelling • Roofs cut/pitched • Decking • Flooring laminate/herringbone • Ironmongery • Cladding • Refurbishments • Painting and decorating Free quote available

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Reviewed by Mark on 7/1/2023

Scott and his team did a fantastic job with our loft conversion. He was approachable, honest and friendly throughout. But most of all an excellent carpenter who did a first rate job with our loft and also dealt with our many requests and amendments with patience and professionalism. I have recommended Scott to friends and neighbours already and would recommend him for any work you are doing.

RNM CONSTRUCTION

Cellar & Basement Conversion

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At RnM Building Services Ltd, we strive to please our customers to their best satisfaction. We do a variety of things, such as:Carpenting, roofing, extensions, steel/structure work and lots more. We promise as a company that we will keep our word and we'll make sure we leave no customer without 100% satisfaction.

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Reviewed by Roger on 17/11/2022

Straight-talking, ran his team well, good quality workmanship

Homer Firma

Cellar & Basement Conversion

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A family run business est 2002

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Reviewed by Charlotte on 4/2/2021

Lovely family run business, quick to respond for quoting and squeezed the job in for me the next day as I was in a rush! Reasonably priced and great communication. Even sorted a couple of slipped tiles at no extra cost. Would recommend this company.

Cn Construction&Gardening Ltd

Cellar & Basement Conversion

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C & N Constructions is a well-established company offering construction and landscaping services for both residential and commercial clients. Our faith: We believe in open and honest communication and shared goals which will generate greater continuity in workload and thereby provide sustained improvements in quality, efficiency & delivery. Our mission: To safely deliver any project, any time, in any environment for the benefit of our customers, shareholders, employees and the communities we serve. Company vision: C&N Constructions is committed to building long-term relationships based on integrity, performance, value, and client satisfaction. We will continue to meet the changing needs of our clients with our quality services delivered by the most qualified people. Get in touch and we can start asap! We offer free and no obligation project estimate.

Latest homeowner review

Reviewed by John on 29/6/2025

The job was to cut back a severely overgrown patch of garden. Chris & his team, Adrian & Cosmin, gave me a competitive quote, after coming to visit the site to assess what needed to be done. They started next day and completed the job quickly and to my complete satisfaction. The site was cleaned up & all waste taken away. I will definitely use them again and strongly recommend them.