Basement Contractors in Mayfair, Kensington & the London Area

At Engel Construction Ltd, our portfolio of successful construction projects in London and the nearby areas continues to grow. One of our key services is the construction of basements, for which we have an excellent reputation in as skilled basement contractors. We are proud to be members of ASUC. No job is too small or large for our team of professionals and we develop tailored solutions to fit your project, budget and timeframe. If you are based in Mayfair, Kensington or elsewhere in or nearby the London area, get in touch to discuss your basement project.

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Specialist Basement Contractors

Basement construction can sometimes be a daunting task for property owners, companies or contractors, and requires a combination of expert engineering and skilled workmanship. By working with our basement contractors, you can have complete confidence that your project will be completed to a high standard. We work to the latest UK Building Regulations and are well-known for our excellent time-keeping abilities and high-quality workmanship.

We have comprehensive knowledge in structural works and specialist expertise in areas such as underpinning, groundworks and structural works. Having already completed a wide variety of basement construction projects in major London areas, like Mayfair and Kensington, you can trust in our proven experience and excellent customer feedback.

Contact us for friendly and professional advice or to arrange a no-obligation consultation.

Basement Construction Stages

Basement constructions consist of a number of complex stages that require the skills of fully trained basement contractors. At Engel Construction Ltd, we have the ability to undertake every stage in-house, and offer to project manage the entire construction for our clients. We can also assist with specific parts, should you only require a certain aspect carried out.

Some of the key stages of basement construction are listed below:


If there is no existing basement or cellar, excavation below ground is essential to add a new basement. We handle all basement excavation requirements and provide solutions to difficult-to-access areas. As excavations produce a substantial amount of excavated soil, we offer thorough planning and services for the safe removal of excavated materials.

Ground Water Control

The nemesis of any substructure works is ground water. The more water held in the soil, the greater the tendency for slippages and collapse. Our basement contractors use various methods, such as pumping, sheet piling and grouting, to temporarily or permanently keep out ground water from the construction site.


As specialists in structural buildings works, underpinning is one of our most requested services from clients in Mayfair, Kensington and the wider London area. Underpinning is often required for new basement constructions and basement conversions, to reinforce an existing foundation. Basement walls may need underpinning because they are damaged, or if the basement is being made deeper to create a higher ceiling.

Temporary Works

Installing temporary steelwork at sub-basement levels may be needed to support the existing structure, or excavated sides, while a basement is being constructed. At Engel Construction Ltd, our qualified engineers will quickly identify what kind of temporary works are required and the most suitable. These may include temporary trenches, stockpiles and slopes for earthworks, or propping, needling and shoring for structural works.

Basement Construction

Basement structures are most often constructed from the ground up after the excavation process is completed and the cavity properly shaped and supported. There are various construction methods our basement contractors use to build the structure, some of the most common being brick and blockwork, precast concrete panels and concrete formwork.


Also known as membrane tanking, basement waterproofing is a vital stage of construction to ensure basements stay dry. Our team has extensive training in the various ways to waterproof a basement and can advise on the best methods to use for the property.

At Engel Construction Ltd, our mission is to provide the highest standards of quality and safety for our clients in London and the surrounding areas. Whether you require a new basement constructed in Mayfair or an existing basement enlarged in Kensington, we endeavour to exceed your expectations. Guarantees are provided and we are fully insured.

Looking for main basement contractors or subcontractors in the London area? Call Engel Construction Ltd today on 01483 283718 to arrange a consultation and quotation.