A construction company with strong foundations

A construction company like no other

Knowles is a proven and established construction company specialising in basements and buildings, shell and core and fit outs – accommodating all basement-related projects in central London and the home counties.

It’s not the beauty of the building you should look at; it’s the construction of the foundation that will stand the test of time.



Basement Construction

Basement Extension

Shell & Core

basement services

Ground Works & RC Frames


Underpinning, Piling & Structural Alterations

Knowles basements

Temporary Works & Demolition

Chesham Dining Area

Fit Out

Experience Matters

With over 20 years experience in construction, underpinning and basements Managing Director Robin Knowles is ever-present on each project undertaken at every level.



Unparalleled Track Record

With Knowles, you can expect your basement construction project is in the best possible hands.


Highest Health & Safety Standards

Knowles understands that the health and safety of its workforce and those affected by its operations is of paramount importance.


Considerate Construction

The reputable experts at Knowles fully appreciate the need to make a construction project as quick and painless as possible – for everyone involved.



Impressive London Basements We’re Working on This Summer

The Knowles basement construction team have been especially busy over the last month with exciting projects across central London. From temporary works and demolition to ground works and structural alterations, our skilled basement contractors have been hard at work...

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