About Us

Basement Builder
Our in-house and specialist approved contractors know how to make the very best use of conned space within your property. We offer a full design and construction service with a personal approach 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.
Our in-house Structural Engineer, Structural Design and Specialist Construction teams work closely together, ensuring the best and most effective layout is created for you.
We are committed to curate an outstanding service and create high-quality, effective and aesthetically pleasing spaces with exceptional attention to detail and within a timeframe suiting your requirements.


Our Story
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 specialist 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, all London Boroughs, Surrey, Sussex, Hampshire, Berkshire, Hertfordshire, Kent, Oxfordshire, Buckinghamshire, Middlesex and Essex.

Email Us
hello@Basementbuilder.co.uk
Find Us
45-46 The Arches, Alma Road,
Windsor, SL4 1QZ
Call Us
0333 444 1169
Save 10+ Hours spent on Research – we advise on everything you need on your basement journey.
Free Basement Conversion Consultation
Save 10+ Hours of Research – We Advise on Everything You Need on your Basement Conversion Journey