0333 444 0355 info@seseng.co.uk


Our basement services engineers design many structural basement projects and have a vast knowledge of experience in this field. We design multi-depth basements, as well as a vast array of single depth projects.

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    Basement Services

    Our structural engineers’ design both new and retrofit basements for either commercial or domestic use including basements under gardens. Structural engineering services include site investigation reports, trial holes, party wall monitoring and site visits throughout the construction phase. We have experience with various underpinning methods, including those in difficult ground conditions. Our work also involves properties that have experienced movement and require the traditional underpinning.
    Structural Engineering Services

    Basement Solutions & Costs


    Basement Design Solutions

    There are numerous ways to design a basement while our structural engineers evaluate the ease of construction. Also, the feasibility and cost of the project will get taken into account. A carefully and well-thought-out structural basement design can limit expenditure on build costs. Consequently, the project time frame can be condensed as well.


    Free Quote Service

    We offer a free quote service where you can call or message us to discuss your ideas so we can answer any queries you have, by appointment, we visit your property and from there draw up a quote.


    Estimated Costs

    On an estimated basis, the guideline of how we usually charge dependent on size and ground conditions is as follows:

    • Retrofit basement or basement dugout where no basement exists, underpinning the walls for 2/3 rooms plus a shower room: From £120,000.00
    • Excavating and casting a basement on a new build property: From £150,000.00
    • Excavation and installation of a basement swimming pool: From £600,000.00
    Structural Engineering Services

    Years Experience

    Completed Projects

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    Contact us now for a free quotation

    Have a Project in Mind?


    We offer FREE consultations for all projects, so get started and contact us today by Email, LiveChat or Call for an in-house meeting.


    We look forward to hearing from you!



    45-46 The Arches, Alma Road,
    Windsor, SL4 1QZ

    0333 444 0355

    Free Basement Quote