Basement Cellar Conversions
At Onyx Basement Services, we do more than just waterproofing — we specialise in transforming dark, damp, or even previously flooded basements into the dry, functional spaces you’ve always envisioned.
Our experienced surveyors work closely with you to tailor your ideas and requirements, turning your vision into reality. We begin by expertly waterproofing the area to create a dry, secure environment. From there, our skilled team handles every step, including electrical installation for bespoke lighting, plumbing, and dry lining.
Whether you’re looking to create a home office, gym, entertainment area, or additional living space, we have the expertise to make it happen. We manage every aspect of the renovation process with professionalism and attention to detail, ensuring that your basement is not only usable but also comfortable and inviting.
Our goal is simple: to bring your unused basement to life — turning underutilised square footage into one of the most valuable and enjoyable areas of your home.
Basement cellar conversion services by Onyx Basement Services Ltd. Basement waterproofing specialists for London.
Examples of our basement and cellar conversions
