WHAT WE DO

WHAT OUR BASEMENT WORK COVERS

South East Formwork specialises in the construction of waterproof reinforced concrete basements for residential and commercial projects across London and the South East. Whether it’s a new basement beneath an existing home, a full-depth commercial basement, or an underpinned lower-ground extension, we build it to stay dry.
We have the experience and capability to take on complex basement projects from initial groundworks and excavation through to the completed reinforced concrete structure. Our team understands the challenges that come with deep excavations, restricted-access sites, temporary works, groundwater and building alongside existing structures — because we’ve handled them before.
Bulk excavation and muck away
Temporary works and excavation support
Underpinning and structural groundworks
Reinforced concrete foundations and slabs
Reinforced concrete basement walls
Formwork and reinforcement
Waterproof concrete construction
Drainage and below-ground services
Piling and associated works

WORKING WITH MAIN CONTRACTORS & STRUCTURAL ENGINEERS

We work closely with main contractors, engineers and other specialists throughout every project, to make sure the structure is built safely, accurately and strictly to the design.
OUR GUARANTEE

15-YEAR WATERPROOF BASEMENT WARRANTY

Good formwork directly affects the accuracy and finish of the completed structure. Get it wrong and you’re looking at out-of-tolerance walls, a poor concrete finish, or — worse — a structural element that doesn’t match the engineer’s drawings. That’s why we place particular emphasis on setting out, dimensional accuracy, stability and quality of finish throughout every stage of our work, because getting this right the first time saves cost and delay further down the line, not to mention the argument with the engineer at sign-off.
CONSIDERATIONS

WHAT AFFECTS BASEMENT CONSTRUCTION COSTS & TIMESCALES?

No two basements price the same, but the main variables are consistent: depth of excavation, ground conditions, site access (can machinery get in, or does everything need to be hand-dug and craned over a house?), groundwater levels, and whether you’re underpinning an existing structure or building new. We’ll walk you through all of this at the free site visit stage, so your quote reflects the real project — not a generic estimate.
GALLERY

VIEW OUR WORK

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BASEMENT CONSTRUCTION FAQS

How long does basement construction typically take?

This depends on size, ground conditions and access, but we’ll give you a realistic programme as part of your quote, and keep you updated if anything changes on site.

Do you handle waterproofing systems like Caltite, Pudlo or Sika?

Yes — our team has experience working with the leading integral waterproofing systems and can advise which suits your project and budget.

What does the 15-year warranty cover?

It covers our waterproof concrete construction against water ingress, giving you long-term peace of mind on one of the most critical parts of your build. Ask us for full warranty terms as part of your quote.

Can you work on restricted-access or tight urban sites?

Yes — restricted access and deep excavation in confined spaces is a large part of what we do, particularly on London and South East residential basement projects.
WHAT OUR CLIENTS SAY

“It was a very good experience dealing with Max and his site team on the Camberley Leisure Centre RC retaining walls. They were fully involved throughout.”

CONTACT US

PLANNING A BASEMENT PROJECT?

Get a free, no-obligation quote from a team that’s handled the tricky ones.