AquaSafe® - your waterproof solution
Understanding the groundworks process
Understanding the groundworks process
Starwalls Retaining Walls
Walls that support, connect & divide
Final Slide
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basements designed to suit self build projects

Basements and ground bearing slabs constructed to suit your self-build project

Glatthaar Keller has over 40 years’ experience in the design, manufacture and build of prefabricated basements and ground bearing slabs. Specialists in their field, building in subsidence areas, on slopes, and in areas with a high water table or flood prone areas. If you are building a house, you want it to perfectly suit your needs and incorporating a basement not only offers more space and design possibilities, but also substantially upgrades your property.

Top quality insulation is essential to create a warm and inviting atmosphere. Using our insulation products, it is possible to insulate your basement to Passive House Standards.

With our basements you can be rest assured that your house will have optimal protection against penetrating moisture. Our 100% waterproof AquaSafe® waterproof system protects your home from moisture and your wallet from the risk of costly restoration work due to water damage.

As a prefabricator we manufacture to stringent quality and manufacturing processes. We also offer our clients a fixed price quotation and peace of mind. One of our key differentiators is that we place the customer at the centre of the build by providing a dedicated project manager and support, before, during, and after the construction project.

Top Tips for Self-Building Basements

5 top tips for a successful basement build

  1. Have a suitable plot and a good idea of your design.
  2. Get a soil survey done
  3. Have an architect to help with your design plans
  4. Decide what you expect from a basement, is it for storage or extra living space?
  5. Involve your chosen basement partner early in the planning phase, their expertise can help save money and time.

Our experienced, highly skilled team support you
throughout the process from beginning to end

Our services section explains how we work with you, the client, from initial consultation to the finished product and beyond.
Click on the links below to read more about our services.

free consultation
Groundworks example

What our clients say

We researched the market and there is only Glatthaar Keller. They are a highly professional company who we felt would be able to handle a project of our size well. They supported us throughout the whole process and were important key players in the completion of the project, always giving good advice.

Monika Bartscht, West Sussex

A huge amount of work goes into a new build and we really appreciated the well-informed and experienced approach that Glatthaar Keller took.

Linda & Clive Parry, East Sussex

My experience of Glatthaar Keller has been a totally positive one. The basement and structure of the house is incredibly solid and sound, and the basement, although it has no natural light, is really bright.

Mark Raistrick, Hertfordshire

Glatthaar Keller offered an effective solution and assurance of building a watertight basement on a site with a high water table. They have delivered exactly the spacious basement we wanted, which also incorporates our swimming pool.

David Ridgway, Oxfordshire

The Glatthaar Keller team, and their workmanship was fantastic. They just got on with the job in hand, and were extremely professional, friendly and respectful.

Duane Parkin, St Albans