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Established in 2013, Basement Builder has built up extensive experience in specialist basement construction processes such as basement structural design and calculations, basement underpinning, basement excavation and basement waterproofing for both commercial and residential new build basements, cellar conversions and retrofit basements.

As a specialise approved contractor, we offer a full design and construction service with a personal approach. The architectural design, structural design and basement fit out are included in an affordable, personalised package providing peace of mind which helps give you a seamless transition to achieving a basement fit to your specifications.

Over the past 5 years, we have designed and built basements for a variety of uses which include, extra living space, offices, gyms, swimming pools and underground garages. We aim to create or redesign the space to suit your budget and lifestyle to the highest possible quality, ensuring that the new floor in your home is watertight and well illuminated, which in turn will add quality to your life and considerably increase the value of your property.

We cover a large geographical area, predominately operating in and around London, including:
Greater London, including all London Boroughs, Surrey, Sussex, Hampshire, Berkshire, Hertfordshire, Kent, Oxfordshire, Buckinghamshire, Middlesex and Essex.

We’re just a short distance from the M25/M3/M4, you’re welcome to drop in any time for a cup of coffee and a sit down to discuss your ideas.

If you have any queries or questions we’d love to help!
Feel free to get in contact with us over the phone, through the contact form or start up a live chat below.


Dale S. 

By Venikom Maria., Google Review
“The Basement Builder team were so efficient, we called up and spoke to a qualified engineer straight away, they understood our requirements and visited us the next day. ”

Dale S. 

By Jason Luo., Google Review
“The team provides a very prompt service and quick feedback, professional. Will work again in future!”

Dale S. 

By Raj Banga.Google Review 
“Great efficient service overall. Found the team to be friendly and helpful particularly Sop Samay. Will recommend to others and use again..”

Dale S. 

By Melissa Gray., Google Review

“Excellent professional service, very good advice and well-organised company.”
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