When you and your home need extra space, your first instinct may be to build outwards or expand upwards into your loft. But you should really be looking right beneath your feet – because when you convert a cellar or basement, you create an additional floor, running the entire length of your house and opening a host of opportunities for a bigger and better property.

In modern London, space has never been so precious. Which is why more and more people are realising the area under their homes may represent the perfect solution.
From lifestyle-enhancing home cinemas, gyms and spas to play areas and dining rooms, modern construction methods can make your basement or cellar a warm, dry, light and comfortable addition to your home.
Founded in 1963, we are one of the founder members of the Property Care Association (P.C.A.). All our surveyors are qualified by examination and hold the Certified Surveyor in Remedial Treatment qualification and Certified Surveyor in Structural Waterproofing status. We are specialists in this field so you can be assured that your project is being managed by professionals.
All our work is guaranteed and we also offer insurance-backed guarantees via GPI which covers damp-proofing for 20 years and basement conversions for ten years.
We specialise in these services -
Our specialist team of installers are here to oversee your entire basement conversion project. We look after the lighting, plumbing, electrical work and damp proofing. Using the very latest cavity membrane technology and highest quality materials, we have the skill, experience and knowledge to create an exciting new space from your basement for almost any use.

When working below ground level, the standard and durability of building materials is absolutely vital, so we offer two systems backed by Agrement Board Certification to ensure your conversion is robust for the life of the building.
As you can see, we’re the experts in transforming dark, damp basements and cellars into wonderful, attractive living areas and we go the extra distance to ensure you are 100% happy with your home’s new space.