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

New Builds

Cellar & Basement Conversion

(35) Read reviews

View ProfileRequest a quote

Hi, I'm Nick from Newbuilds. Newbuilds is a family run business, which has an array of building projects under our belt, from small repair jobs to extensions and Newbuild projects. All our work force are highly trained in numerous trades. We pride ourselves on our quality of work, and good customer care, leaving homes as clean and tidy as our own. With over 50 years experience, we guarantee you're in great hands.

Latest homeowner review

Reviewed by Steve on 8/3/2026

Nick and his team were superb. The garden wall was restored, and they cleared up thoroughly - all to the highest of standards. I would have absolutely no hesitation in using Nick again.

SD Spiers Building Contractors

Cellar & Basement Conversion

(35) Read reviews

View ProfileRequest a quote

Hi offering a quality professional services at affordable prices with guaranteed job satisfaction , brickwork blockpaving ,flat roofing,plasterwork,garage conversion demolition,refurbishment,extensions, we have 25 year experienced we cover all aspects of building work

Latest homeowner review

Reviewed by Nicola on 16/12/2022

Prompt, polite, tidy and reasonably priced. Finished job was done quickly and overall very pleased with the work carried out.

Property Renovation&Decorating Services

Cellar & Basement Conversion

(87) Read reviews

View ProfileRequest a quote07448421376

Property Renovation & Decorating Services "Excellence in Construction, Passion for Detail" With over 17 years of solid experience in the construction industry, our team provides comprehensive renovation and interior decorating solutions designed to bring your vision to life. Led by Emy, a professional renowned for his rigor, integrity, and craftsmanship, we are committed to delivering every project to the highest standards of quality. Our Services We offer a wide range of construction and finishing services, professionally managed from initial concept to final handover: Extensions & Conversions: Expert loft conversions, home extensions, and new builds. Full Renovations: Complete modernization of houses and apartments, including bespoke kitchen and bathroom installations. Premium Finishes: High-end interior and exterior painting, professional plastering, and precision tiling. Flooring: Installation of solid wood, engineered flooring, and carpet fitting. General Building: Structural repairs, general maintenance, and full-scale property refurbishments. Why Choose Us? Our reputation is built on four core pillars that ensure every client receives exceptional service: Attention to Detail: We believe perfection is in the finishing touches; every task is executed with surgical precision. Timeliness: We respect your schedule and strictly adhere to agreed deadlines. Transparency: Open communication and honest, competitive estimates with no hidden costs. Proven Expertise: Over 17 years of successful projects and satisfied homeowners. Contact Us for a Free Estimate Ready to start your home transformation? Contact us today for a free consultation and a personalized quote.

Latest homeowner review

Reviewed by MARK on 1/8/2026

The guys worked incredibly hard and the workmanship was exceptional. They gave a good quote and got the work finished quickly and without leaving a mess. They were very friendly and respected the fact I couldn't let the cats outside. I would highly recommend.

Callisto

Cellar & Basement Conversion

View ProfileRequest a quote

Callisto Construction, established in 2001, are run by a team of building experts with over 60 years of experience and are based in Sutton-At-Hone at the end of the Darenth Valley. We Design & Build and can take your project from an idea through planning to completion. From small extensions, refurbishment & structural alterations to full new builds, large or small and with full accreditation with various industry bodies such as The Federation of Master Builders, we give you peace of mind, knowing that your Build is in safe hands! We value and pride ourselves on our reputation and look to partner with our clients to give them the most positive experience possible when embarking on what is often a clients most valued and important asset, their home! We offer simple design advice such as space planning, Kitchen & Bathrooms design & renewable energy solutions to Full Planning, Structural Engineers and our own Architects. Callisto are fully insured, trading standards approved and offer a suite of Build Assure warranty products for the domestic and commercial markets. If you are interested in discussing your build please contact us We do hope that you get in touch! Kind Regards, Bram Martin (Director)

HJ Tebbutt & Sons Ltd

Cellar & Basement Conversion

(7) Read reviews

View ProfileRequest a quote

We are a small, Family run company, since 1970, we carry out small to medium works over the South East and Kent, all works insured and guaranteed. All works are covered by our £5million liability insurance. Local references and previous works available to view. We are Members of the Federation of Master Builders, this means our working standards and practices are continually scrutinised, for our Customers, it means you will always get a high quality standard of work from all of our Employees.

Latest homeowner review

Reviewed by Jane on 13/3/2025

Very confident in recommending Dean and his friendly team, who proved to be reliable, hard working and skilled. The job has been completed with precision and to a high standard. Great attention to detail and all carried out swiftly, neatly and overall we couldn’t be more delighted with the finished job.

Kh&n construction ltd

Cellar & Basement Conversion

(11) Read reviews

View ProfileRequest a quote07724779917

About KH&N Construction Limited ​With over a decade of hands-on experience delivering premium property fit-outs, we specialize in transforming spaces into elegant, functional sanctuaries tailored to the highest standards of design and craftsmanship. ​Over the past 10 years, we have led and completed a wide range of bespoke refurbishment projects in some of the most prestigious residential and commercial properties across the UK. Our work blends precision installation with a sharp eye for detail, using only the finest materials. We work closely with architects, interior designers, and clients to ensure a flawless finish every time. ​From custom stonework and high-spec tiling to smart tech integrations and luxury fixtures, every element is carefully executed to create a space that reflects sophistication and comfort. ​Our Core Strengths: ​Luxury Property Installation & Project Management: Delivering high-end results on time and within budget. ​Premium Materials & Brands: In-depth knowledge of sourcing and working with luxury fixtures. ​Smart Home Integration: Seamless installation of lighting, underfloor heating, and smart controls. ​Bespoke Craftsmanship: Expert handling of stone, marble, and high-spec tile work. ​Collaborative Approach: Working hand-in-hand with design and build teams. ​Discreet & Reliable Service: Maintaining clean, quiet, and respectful workmanship in occupied homes. ​Whether it’s a minimalist modern spa or a timeless classic retreat, KH&N Construction brings each vision to life with unmatched attention to detail and absolute pride in the final result.

Latest homeowner review

Reviewed by Phil on 8/7/2025

Brilliant service, arived on time and carried out the job in very quick time. Cleaned up after job compleet. Very happy to recomend.

Castle interiors

Cellar & Basement Conversion

(5) Read reviews

View ProfileRequest a quote

Castle Interiors take great pride in all of our work, we will go the extra mile to make sure you get the perfect finish and quality look that your after we take great care of our customers by helping them design and using their ideas to make a perfect home for them. We also offer an amazing discount scheme for new and regular customers also seasonal deals that are amazing and won't find anywhere else. We are a one stop shop Try us and you'll be amazed by the quality of work.

Latest homeowner review

Reviewed by Evans on 30/1/2021

Was always punctual and did the job to my satisfaction.

Corpus Christi Contractors Ltd

Cellar & Basement Conversion

(19) Read reviews

View ProfileRequest a quote

Sovereign Building and Landscape Services has been established over 25 years. We pride our selves on our ability to always leave the customer with the satisfaction a first class job has been completed

Latest homeowner review

Reviewed by David on 24/11/2021

We needed some buttresses built to support a garden wall. Fred was able to provide very practical help and advice which we were more than happy to act upon. The work was delivered in a timely way and to a very high standard. The guys were always cleaning up after themselves and always left the site clean and tidy. Fred is my go-to builder from now on and have no hesitation in recommending him to others!!

SGH Construction & Groundwork

Cellar & Basement Conversion

View ProfileRequest a quote

SGH Construction & Groundwork have been established since 2016 we are a family run business that has been operating via customer recommendations. We pride ourselves on safely delivering the highest quality work for our clients. All of our staff are fully qualified for the job in hand. Please feel free to give us a try.

Iulian Electrical Services

Cellar & Basement Conversion

(10) Read reviews

View ProfileRequest a quote

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

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.

BC Bespoke Build

Cellar & Basement Conversion

View ProfileRequest a quote

Hi, We have been in the building industry for over 25 years creating beautiful projects to the Highest standard. Many projects to Show and view to show the quality we provide.

New Beginnings Construction Ltd

Cellar & Basement Conversion

View ProfileRequest a quote

New Beginnings is a family run construction company specialising in extensions, loft conversions, home refurbishments. Named New Beginnings to represent the New Beginning that our works provide for clients within their own home. Run by Simon and Malcolm who have a combined 60 years experience in the construction industry working at every level from small refurbishment works up to large scale new build housing schemes. Now focused on residential works as this offers the greatest job satisfaction. It is genuinely a pleasure to assist people in maximising the potential of their home.

BILLA BUILDING SOLUTIONS

Cellar & Basement Conversion

View ProfileRequest a quote

At Billa Building Solutions we have established a business with more than 20 years of experience, every project we take is analysed and performed by our most skilled workers. Billa Building Solutions does undertake work of every size from the little replacement to the big constructing projects: renovations, loft conversions, new buildings, extensions commercial buildings and restaurants. Our company’s aim is to ‘Build the Future and Restore the Past’ by fulfilling our customers’ wish and wants through clear ways of communication, as their satisfaction is our top priority. We do provide our customers with free estimates of the project, and guarantees are included with the finished job.

Phonics

Cellar & Basement Conversion

View ProfileRequest a quote

At Phonics Interiors, we bring vision to life through precision, creativity, and craftsmanship. Specialising in high-end interior fit-out and bespoke finishes, we transform spaces into timeless environments that combine luxury, functionality, and architectural harmony. From concept to completion, our dedicated team delivers exceptional attention to detail, ensuring every project reflects the client’s individuality and purpose. Whether it’s a modern office, an exclusive residence, or a refined commercial interior, we approach each space with the same passion for design excellence and flawless execution. Driven by innovation and guided by integrity, Phonics Interiors stands as a trusted partner for those who seek not just renovation, but true transformation.

James Building Contractors LTD

Cellar & Basement Conversion

View ProfileRequest a quote

James Building Contractors Limited provides a range of Construction services for Clients and also contractors. suitable for all construction programmes. Most importantly, we are the only point of contact you will ever need as we bring together all the relevant trades and skills under our project management team. You will find our key packages listed here however we can put new, bespoke packages together. Founded in 1983, James Building Contractors is based in the South-East of London.