Call us today on 01229 840789


  • Homeowners

    Creating valuable additional living space

  • Architects & Professionals

    Professional assistance at the design stage







Our Services

Sovereign offer a unique service within the waterproofing/basement conversion industry in that we are able to assist with your project from initial design through to full individual specification and the appointment of an approved contractor. So whether you’re a home owner looking to convert an existing basement room or a designer developing a new basement we are here to help. Additionally we offer a full range of professional training modules and industry renowned technical CPD seminars.

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Case Studies

Our involvement in basement/cellar waterproofing spans some 30 years where we have specified not hundreds but tens of thousands of water proofing designs for both new build and existing basements. Most basement projects are relatively straight forward, however, as you will see some provide us with a definite challenge.
The running theme throughout this site is “getting it right” which means a thorough assessment of the situation, clients’ expectations and critically the correct choice and position of the waterproofing system.

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Get in touch

Do you have a question, suggestion or enquiry? Contact us by phone on 01229 840789 or by filling in the enquiry form below.